Publisher: Elsevier   (Total: 3148 journals)

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Showing 1 - 200 of 3148 Journals sorted alphabetically
Academic Pediatrics     Hybrid Journal   (Followers: 39, SJR: 1.655, CiteScore: 2)
Academic Radiology     Hybrid Journal   (Followers: 26, SJR: 1.015, CiteScore: 2)
Accident Analysis & Prevention     Partially Free   (Followers: 106, SJR: 1.462, CiteScore: 3)
Accounting Forum     Hybrid Journal   (Followers: 28, SJR: 0.932, CiteScore: 2)
Accounting, Organizations and Society     Hybrid Journal   (Followers: 44, SJR: 1.771, CiteScore: 3)
Achievements in the Life Sciences     Open Access   (Followers: 7)
Acta Anaesthesiologica Taiwanica     Open Access   (Followers: 6)
Acta Astronautica     Hybrid Journal   (Followers: 446, SJR: 0.758, CiteScore: 2)
Acta Automatica Sinica     Full-text available via subscription   (Followers: 2)
Acta Biomaterialia     Hybrid Journal   (Followers: 30, SJR: 1.967, CiteScore: 7)
Acta Colombiana de Cuidado Intensivo     Full-text available via subscription   (Followers: 3)
Acta de Investigación Psicológica     Open Access   (Followers: 2)
Acta Ecologica Sinica     Open Access   (Followers: 12, SJR: 0.18, CiteScore: 1)
Acta Histochemica     Hybrid Journal   (Followers: 5, SJR: 0.661, CiteScore: 2)
Acta Materialia     Hybrid Journal   (Followers: 324, SJR: 3.263, CiteScore: 6)
Acta Mathematica Scientia     Full-text available via subscription   (Followers: 5, SJR: 0.504, CiteScore: 1)
Acta Mechanica Solida Sinica     Full-text available via subscription   (Followers: 9, SJR: 0.542, CiteScore: 1)
Acta Oecologica     Hybrid Journal   (Followers: 12, SJR: 0.834, CiteScore: 2)
Acta Otorrinolaringologica (English Edition)     Full-text available via subscription  
Acta Otorrinolaringológica Española     Full-text available via subscription   (Followers: 2, SJR: 0.307, CiteScore: 0)
Acta Pharmaceutica Sinica B     Open Access   (Followers: 2, SJR: 1.793, CiteScore: 6)
Acta Psychologica     Hybrid Journal   (Followers: 26, SJR: 1.331, CiteScore: 2)
Acta Sociológica     Open Access   (Followers: 1)
Acta Tropica     Hybrid Journal   (Followers: 6, SJR: 1.052, CiteScore: 2)
Acta Urológica Portuguesa     Open Access   (Followers: 1)
Actas Dermo-Sifiliograficas     Full-text available via subscription   (Followers: 3, SJR: 0.374, CiteScore: 1)
Actas Dermo-Sifiliográficas (English Edition)     Full-text available via subscription   (Followers: 2)
Actas Urológicas Españolas     Full-text available via subscription   (Followers: 3, SJR: 0.344, CiteScore: 1)
Actas Urológicas Españolas (English Edition)     Full-text available via subscription   (Followers: 1)
Actualites Pharmaceutiques     Full-text available via subscription   (Followers: 7, SJR: 0.19, CiteScore: 0)
Actualites Pharmaceutiques Hospitalieres     Full-text available via subscription   (Followers: 3)
Acupuncture and Related Therapies     Hybrid Journal   (Followers: 8)
Acute Pain     Full-text available via subscription   (Followers: 15, SJR: 2.671, CiteScore: 5)
Ad Hoc Networks     Hybrid Journal   (Followers: 11, SJR: 0.53, CiteScore: 4)
Addictive Behaviors     Hybrid Journal   (Followers: 18, SJR: 1.29, CiteScore: 3)
Addictive Behaviors Reports     Open Access   (Followers: 9, SJR: 0.755, CiteScore: 2)
Additive Manufacturing     Hybrid Journal   (Followers: 13, SJR: 2.611, CiteScore: 8)
Additives for Polymers     Full-text available via subscription   (Followers: 22)
Advanced Drug Delivery Reviews     Hybrid Journal   (Followers: 190, SJR: 4.09, CiteScore: 13)
Advanced Engineering Informatics     Hybrid Journal   (Followers: 13, SJR: 1.167, CiteScore: 4)
Advanced Powder Technology     Hybrid Journal   (Followers: 17, SJR: 0.694, CiteScore: 3)
Advances in Accounting     Hybrid Journal   (Followers: 9, SJR: 0.277, CiteScore: 1)
Advances in Agronomy     Full-text available via subscription   (Followers: 17, SJR: 2.384, CiteScore: 5)
Advances in Anesthesia     Full-text available via subscription   (Followers: 30, SJR: 0.126, CiteScore: 0)
Advances in Antiviral Drug Design     Full-text available via subscription   (Followers: 2)
Advances in Applied Mathematics     Full-text available via subscription   (Followers: 12, SJR: 0.992, CiteScore: 1)
Advances in Applied Mechanics     Full-text available via subscription   (Followers: 12, SJR: 1.551, CiteScore: 4)
Advances in Applied Microbiology     Full-text available via subscription   (Followers: 24, SJR: 2.089, CiteScore: 5)
Advances In Atomic, Molecular, and Optical Physics     Full-text available via subscription   (Followers: 15, SJR: 0.572, CiteScore: 2)
Advances in Biological Regulation     Hybrid Journal   (Followers: 4, SJR: 2.61, CiteScore: 7)
Advances in Botanical Research     Full-text available via subscription   (Followers: 1, SJR: 0.686, CiteScore: 2)
Advances in Cancer Research     Full-text available via subscription   (Followers: 35, SJR: 3.043, CiteScore: 6)
Advances in Carbohydrate Chemistry and Biochemistry     Full-text available via subscription   (Followers: 9, SJR: 1.453, CiteScore: 2)
Advances in Catalysis     Full-text available via subscription   (Followers: 5, SJR: 1.992, CiteScore: 5)
Advances in Cell Aging and Gerontology     Full-text available via subscription   (Followers: 5)
Advances in Cellular and Molecular Biology of Membranes and Organelles     Full-text available via subscription   (Followers: 14)
Advances in Chemical Engineering     Full-text available via subscription   (Followers: 29, SJR: 0.156, CiteScore: 1)
Advances in Child Development and Behavior     Full-text available via subscription   (Followers: 11, SJR: 0.713, CiteScore: 1)
Advances in Chronic Kidney Disease     Full-text available via subscription   (Followers: 11, SJR: 1.316, CiteScore: 2)
Advances in Clinical Chemistry     Full-text available via subscription   (Followers: 26, SJR: 1.562, CiteScore: 3)
Advances in Colloid and Interface Science     Full-text available via subscription   (Followers: 21, SJR: 1.977, CiteScore: 8)
Advances in Computers     Full-text available via subscription   (Followers: 14, SJR: 0.205, CiteScore: 1)
Advances in Dermatology     Full-text available via subscription   (Followers: 16)
Advances in Developmental Biology     Full-text available via subscription   (Followers: 14)
Advances in Digestive Medicine     Open Access   (Followers: 13)
Advances in DNA Sequence-Specific Agents     Full-text available via subscription   (Followers: 7)
Advances in Drug Research     Full-text available via subscription   (Followers: 26)
Advances in Ecological Research     Full-text available via subscription   (Followers: 44, SJR: 2.524, CiteScore: 4)
Advances in Engineering Software     Hybrid Journal   (Followers: 30, SJR: 1.159, CiteScore: 4)
Advances in Experimental Biology     Full-text available via subscription   (Followers: 9)
Advances in Experimental Social Psychology     Full-text available via subscription   (Followers: 51, SJR: 5.39, CiteScore: 8)
Advances in Exploration Geophysics     Full-text available via subscription   (Followers: 2)
Advances in Fluorine Science     Full-text available via subscription   (Followers: 9)
Advances in Food and Nutrition Research     Full-text available via subscription   (Followers: 68, SJR: 0.591, CiteScore: 2)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 17)
Advances in Genetics     Full-text available via subscription   (Followers: 21, SJR: 1.354, CiteScore: 4)
Advances in Genome Biology     Full-text available via subscription   (Followers: 11, SJR: 12.74, CiteScore: 13)
Advances in Geophysics     Full-text available via subscription   (Followers: 8, SJR: 1.193, CiteScore: 3)
Advances in Heat Transfer     Full-text available via subscription   (Followers: 26, SJR: 0.368, CiteScore: 1)
Advances in Heterocyclic Chemistry     Full-text available via subscription   (Followers: 11, SJR: 0.749, CiteScore: 3)
Advances in Human Factors/Ergonomics     Full-text available via subscription   (Followers: 26)
Advances in Imaging and Electron Physics     Full-text available via subscription   (Followers: 4, SJR: 0.193, CiteScore: 0)
Advances in Immunology     Full-text available via subscription   (Followers: 37, SJR: 4.433, CiteScore: 6)
Advances in Inorganic Chemistry     Full-text available via subscription   (Followers: 10, SJR: 1.163, CiteScore: 2)
Advances in Insect Physiology     Full-text available via subscription   (Followers: 2, SJR: 1.938, CiteScore: 3)
Advances in Integrative Medicine     Hybrid Journal   (Followers: 6, SJR: 0.176, CiteScore: 0)
Advances in Intl. Accounting     Full-text available via subscription   (Followers: 3)
Advances in Life Course Research     Hybrid Journal   (Followers: 9, SJR: 0.682, CiteScore: 2)
Advances in Lipobiology     Full-text available via subscription   (Followers: 1)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 8)
Advances in Marine Biology     Full-text available via subscription   (Followers: 21, SJR: 0.88, CiteScore: 2)
Advances in Mathematics     Full-text available via subscription   (Followers: 17, SJR: 3.027, CiteScore: 2)
Advances in Medical Sciences     Hybrid Journal   (Followers: 9, SJR: 0.694, CiteScore: 2)
Advances in Medicinal Chemistry     Full-text available via subscription   (Followers: 6)
Advances in Microbial Physiology     Full-text available via subscription   (Followers: 5, SJR: 1.158, CiteScore: 3)
Advances in Molecular and Cell Biology     Full-text available via subscription   (Followers: 26)
Advances in Molecular and Cellular Endocrinology     Full-text available via subscription   (Followers: 8)
Advances in Molecular Toxicology     Full-text available via subscription   (Followers: 7, SJR: 0.182, CiteScore: 0)
Advances in Nanoporous Materials     Full-text available via subscription   (Followers: 5)
Advances in Oncobiology     Full-text available via subscription   (Followers: 2)
Advances in Organ Biology     Full-text available via subscription   (Followers: 2)
Advances in Organometallic Chemistry     Full-text available via subscription   (Followers: 18, SJR: 1.875, CiteScore: 4)
Advances in Parallel Computing     Full-text available via subscription   (Followers: 7, SJR: 0.174, CiteScore: 0)
Advances in Parasitology     Full-text available via subscription   (Followers: 6, SJR: 1.579, CiteScore: 4)
Advances in Pediatrics     Full-text available via subscription   (Followers: 27, SJR: 0.461, CiteScore: 1)
Advances in Pharmaceutical Sciences     Full-text available via subscription   (Followers: 19)
Advances in Pharmacology     Full-text available via subscription   (Followers: 17, SJR: 1.536, CiteScore: 3)
Advances in Physical Organic Chemistry     Full-text available via subscription   (Followers: 10, SJR: 0.574, CiteScore: 1)
Advances in Phytomedicine     Full-text available via subscription  
Advances in Planar Lipid Bilayers and Liposomes     Full-text available via subscription   (Followers: 3, SJR: 0.109, CiteScore: 1)
Advances in Plant Biochemistry and Molecular Biology     Full-text available via subscription   (Followers: 11)
Advances in Plant Pathology     Full-text available via subscription   (Followers: 6)
Advances in Porous Media     Full-text available via subscription   (Followers: 5)
Advances in Protein Chemistry     Full-text available via subscription   (Followers: 19)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (Followers: 20, SJR: 0.791, CiteScore: 2)
Advances in Psychology     Full-text available via subscription   (Followers: 69)
Advances in Quantum Chemistry     Full-text available via subscription   (Followers: 7, SJR: 0.371, CiteScore: 1)
Advances in Radiation Oncology     Open Access   (Followers: 3, SJR: 0.263, CiteScore: 1)
Advances in Small Animal Medicine and Surgery     Hybrid Journal   (Followers: 3, SJR: 0.101, CiteScore: 0)
Advances in Space Biology and Medicine     Full-text available via subscription   (Followers: 7)
Advances in Space Research     Full-text available via subscription   (Followers: 430, SJR: 0.569, CiteScore: 2)
Advances in Structural Biology     Full-text available via subscription   (Followers: 6)
Advances in Surgery     Full-text available via subscription   (Followers: 13, SJR: 0.555, CiteScore: 2)
Advances in the Study of Behavior     Full-text available via subscription   (Followers: 37, SJR: 2.208, CiteScore: 4)
Advances in Veterinary Medicine     Full-text available via subscription   (Followers: 20)
Advances in Veterinary Science and Comparative Medicine     Full-text available via subscription   (Followers: 15)
Advances in Virus Research     Full-text available via subscription   (Followers: 6, SJR: 2.262, CiteScore: 5)
Advances in Water Resources     Hybrid Journal   (Followers: 57, SJR: 1.551, CiteScore: 3)
Aeolian Research     Hybrid Journal   (Followers: 6, SJR: 1.117, CiteScore: 3)
Aerospace Science and Technology     Hybrid Journal   (Followers: 394, SJR: 0.796, CiteScore: 3)
AEU - Intl. J. of Electronics and Communications     Hybrid Journal   (Followers: 8, SJR: 0.42, CiteScore: 2)
African J. of Emergency Medicine     Open Access   (Followers: 6, SJR: 0.296, CiteScore: 0)
Ageing Research Reviews     Hybrid Journal   (Followers: 12, SJR: 3.671, CiteScore: 9)
Aggression and Violent Behavior     Hybrid Journal   (Followers: 489, SJR: 1.238, CiteScore: 3)
Agri Gene     Hybrid Journal   (Followers: 1, SJR: 0.13, CiteScore: 0)
Agricultural and Forest Meteorology     Hybrid Journal   (Followers: 18, SJR: 1.818, CiteScore: 5)
Agricultural Systems     Hybrid Journal   (Followers: 32, SJR: 1.156, CiteScore: 4)
Agricultural Water Management     Hybrid Journal   (Followers: 47, SJR: 1.272, CiteScore: 3)
Agriculture and Agricultural Science Procedia     Open Access   (Followers: 4)
Agriculture and Natural Resources     Open Access   (Followers: 3)
Agriculture, Ecosystems & Environment     Hybrid Journal   (Followers: 58, SJR: 1.747, CiteScore: 4)
Ain Shams Engineering J.     Open Access   (Followers: 5, SJR: 0.589, CiteScore: 3)
Air Medical J.     Hybrid Journal   (Followers: 8, SJR: 0.26, CiteScore: 0)
AKCE Intl. J. of Graphs and Combinatorics     Open Access   (SJR: 0.19, CiteScore: 0)
Alcohol     Hybrid Journal   (Followers: 12, SJR: 1.153, CiteScore: 3)
Alcoholism and Drug Addiction     Open Access   (Followers: 12)
Alergologia Polska : Polish J. of Allergology     Full-text available via subscription   (Followers: 1)
Alexandria Engineering J.     Open Access   (Followers: 2, SJR: 0.604, CiteScore: 3)
Alexandria J. of Medicine     Open Access   (Followers: 1, SJR: 0.191, CiteScore: 1)
Algal Research     Partially Free   (Followers: 11, SJR: 1.142, CiteScore: 4)
Alkaloids: Chemical and Biological Perspectives     Full-text available via subscription   (Followers: 2)
Allergologia et Immunopathologia     Full-text available via subscription   (Followers: 1, SJR: 0.504, CiteScore: 1)
Allergology Intl.     Open Access   (Followers: 5, SJR: 1.148, CiteScore: 2)
Alpha Omegan     Full-text available via subscription   (SJR: 3.521, CiteScore: 6)
ALTER - European J. of Disability Research / Revue Européenne de Recherche sur le Handicap     Full-text available via subscription   (Followers: 11, SJR: 0.201, CiteScore: 1)
Alzheimer's & Dementia     Hybrid Journal   (Followers: 55, SJR: 4.66, CiteScore: 10)
Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring     Open Access   (Followers: 6, SJR: 1.796, CiteScore: 4)
Alzheimer's & Dementia: Translational Research & Clinical Interventions     Open Access   (Followers: 6, SJR: 1.108, CiteScore: 3)
Ambulatory Pediatrics     Hybrid Journal   (Followers: 5)
American Heart J.     Hybrid Journal   (Followers: 58, SJR: 3.267, CiteScore: 4)
American J. of Cardiology     Hybrid Journal   (Followers: 67, SJR: 1.93, CiteScore: 3)
American J. of Emergency Medicine     Hybrid Journal   (Followers: 48, SJR: 0.604, CiteScore: 1)
American J. of Geriatric Pharmacotherapy     Full-text available via subscription   (Followers: 13)
American J. of Geriatric Psychiatry     Hybrid Journal   (Followers: 15, SJR: 1.524, CiteScore: 3)
American J. of Human Genetics     Hybrid Journal   (Followers: 40, SJR: 7.45, CiteScore: 8)
American J. of Infection Control     Hybrid Journal   (Followers: 29, SJR: 1.062, CiteScore: 2)
American J. of Kidney Diseases     Hybrid Journal   (Followers: 37, SJR: 2.973, CiteScore: 4)
American J. of Medicine     Hybrid Journal   (Followers: 50)
American J. of Medicine Supplements     Full-text available via subscription   (Followers: 3, SJR: 1.967, CiteScore: 2)
American J. of Obstetrics and Gynecology     Hybrid Journal   (Followers: 266, SJR: 2.7, CiteScore: 4)
American J. of Ophthalmology     Hybrid Journal   (Followers: 67, SJR: 3.184, CiteScore: 4)
American J. of Ophthalmology Case Reports     Open Access   (Followers: 5, SJR: 0.265, CiteScore: 0)
American J. of Orthodontics and Dentofacial Orthopedics     Full-text available via subscription   (Followers: 6, SJR: 1.289, CiteScore: 1)
American J. of Otolaryngology     Hybrid Journal   (Followers: 25, SJR: 0.59, CiteScore: 1)
American J. of Pathology     Hybrid Journal   (Followers: 32, SJR: 2.139, CiteScore: 4)
American J. of Preventive Medicine     Hybrid Journal   (Followers: 30, SJR: 2.164, CiteScore: 4)
American J. of Surgery     Hybrid Journal   (Followers: 39, SJR: 1.141, CiteScore: 2)
American J. of the Medical Sciences     Hybrid Journal   (Followers: 12, SJR: 0.767, CiteScore: 1)
Ampersand : An Intl. J. of General and Applied Linguistics     Open Access   (Followers: 7)
Anaerobe     Hybrid Journal   (Followers: 4, SJR: 1.144, CiteScore: 3)
Anaesthesia & Intensive Care Medicine     Full-text available via subscription   (Followers: 67, SJR: 0.138, CiteScore: 0)
Anaesthesia Critical Care & Pain Medicine     Full-text available via subscription   (Followers: 25, SJR: 0.411, CiteScore: 1)
Anales de Cirugia Vascular     Full-text available via subscription   (Followers: 1)
Anales de Pediatría     Full-text available via subscription   (Followers: 3, SJR: 0.277, CiteScore: 0)
Anales de Pediatría (English Edition)     Full-text available via subscription  
Anales de Pediatría Continuada     Full-text available via subscription  
Analytic Methods in Accident Research     Hybrid Journal   (Followers: 6, SJR: 4.849, CiteScore: 10)
Analytica Chimica Acta     Hybrid Journal   (Followers: 44, SJR: 1.512, CiteScore: 5)
Analytica Chimica Acta : X     Open Access  
Analytical Biochemistry     Hybrid Journal   (Followers: 216, SJR: 0.633, CiteScore: 2)
Analytical Chemistry Research     Open Access   (Followers: 13, SJR: 0.411, CiteScore: 2)
Analytical Spectroscopy Library     Full-text available via subscription   (Followers: 14)
Anesthésie & Réanimation     Full-text available via subscription   (Followers: 2)
Anesthesiology Clinics     Full-text available via subscription   (Followers: 25, SJR: 0.683, CiteScore: 2)
Angiología     Full-text available via subscription   (SJR: 0.121, CiteScore: 0)
Angiologia e Cirurgia Vascular     Open Access   (Followers: 1, SJR: 0.111, CiteScore: 0)
Animal Behaviour     Hybrid Journal   (Followers: 236, SJR: 1.58, CiteScore: 3)
Animal Feed Science and Technology     Hybrid Journal   (Followers: 8, SJR: 0.937, CiteScore: 2)
Animal Reproduction Science     Hybrid Journal   (Followers: 7, SJR: 0.704, CiteScore: 2)
Annales d'Endocrinologie     Full-text available via subscription   (Followers: 3, SJR: 0.451, CiteScore: 1)

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Similar Journals
Journal Cover
Acta Oecologica
Journal Prestige (SJR): 0.834
Citation Impact (citeScore): 2
Number of Followers: 12  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1146-609X - ISSN (Online) 1146-609X
Published by Elsevier Homepage  [3148 journals]
  • The effect of resource pulses on the competitiveness of a tropical invader
           depends on identity of resident species and resource type
    • Abstract: Publication date: January 2020Source: Acta Oecologica, Volume 102Author(s): Yulong Zheng, Zhiyong Liao, Weitao Li, Ruifang Wang, Long Li, Andu Yang, Yuguo Zheng, Yulong FengAbstractDifferent species have differential physiological requirements and ecological strategies, and the resident species and resource type may affect invasiveness of alien plants. Resource pulse is an important factor influencing the invasion status of alien plants. Here, we tested the effects of irradiance and nutrient pulse on the competitiveness of the invasive plant Chromolaena odorata when cultured with two resident plants, Abelmoschus manihot and Xanthium sibiricum. Our results suggest that the response of competitiveness to a resource pulse (nutrient and irradiance) depended on species identity – Chromolaena odorata was more competitive with Abelmoschus manihot than with Xanthium sibiricum under resource pulse. Moreover, Chromolaena odorata has higher advantage than resident species in competitive conditions but not in monoculture conditions. This study provided information for controlling the future spread of invasive C. odorata.
       
  • Effects of a native earthworm species (Amynthas morrisi) and Eisenia
           
    • Abstract: Publication date: January 2020Source: Acta Oecologica, Volume 102Author(s): Chi Zhang, Jun Dai, Xufei Chen, Huanhuan Li, Patrick LavelleAbstractThe effects of the native species Amynthas morrisi and the composting earthworm Eisenia fetida were evaluated on the forms of Zn, Cd, Pb and Cu in a long-term contaminated Chinese soil, with and without added organic matter (OM), in a 60-day laboratory experiment (25 °C field capacity). Four metal fractions were extracted using a sequential procedure: water-soluble exchangeable and carbonate-bound fraction (WAEX), Fe and Mn oxides fraction (FMOX), organic compounds (ORGA), and residual non-extractable fraction (RESI). The sum of available fractions (AVA = WAEX + FMOX + ORGA) and the total contents of the surface casts and non-ingested soil were calculated. In all treatments, all casts of the two earthworm species had higher pH and DOC (Dissolved organic carbon) contents and lower Eh values than those of their respective controls. Amynthas morrisi casts contained higher concentrations of available forms (AVA) of Cd (+84.1%) and Zn (+39.9%) and lower concentrations of available Cu (−10.1%) than those in the control soil (P 
       
  • Habitat continuity matters: Ancient woodlands tend to have higher biomass
           and catching rate of dung beetles, mainly driven by one large species
    • Abstract: Publication date: January 2020Source: Acta Oecologica, Volume 102Author(s): Marietta Hülsmann, Estève Boutaud, Jörn Buse, Kevin Frank, Andreas Schuldt, Thorsten AssmannAbstractAncient woodlands differ from recent woodlands by numerous abiotic and biotic factors, including soil properties. Several animal species are more abundant in ancient than in recent woodlands, but this has been only rarely tested for saprophagous taxa and not at all for dung beetles, which are common in temperate woodlands. Beside habitat continuity, tree age can have also an effect on woodland inhabiting animals, especially on saprophagous taxa. To analyze the effects of both habitat continuity and tree age we studied dung beetles in a continuous north-west German woodland with baited pitfall traps on basis of a factorial design. We compared species diversity (Shannon-Wiener-Index and Pielou's Evenness), catching rates, biomass and community composition of dung beetles. With only 18 recorded species from 20 study plots, dung beetle communities were species-poor and dominated by one large tunnelling species. The main result is that catching rate and biomass of dung beetles were higher in ancient woodlands, which was due to the particularly high catching rate of the most dominant tunnelling species and one dweller species. Tree age alone had a minor impact, but affects significantly one rare species. Diverging habitat quality of ancient and recent woodlands likely explains differences in the communities of dung beetles in woodlands of different habitat continuity. Old trees in recent woodlands could not compensate for habitat continuity of ancient woodlands.
       
  • Witches’ brooms increases arthropod-plant interactions in Ouratea
           hexasperma (Baill.) (Ochnaceae)
    • Abstract: Publication date: January 2020Source: Acta Oecologica, Volume 102Author(s): Tayná Lopes Pires, Denise Lange, Kleber Del-ClaroAbstractOuratea hexasperma (Baill.) (Ochnaceae) trees can be infected by pathogens, which drastically alters branch structure by inducing witches' brooms, a massed proliferation of short and bushy branches, similar to broom. These structures can be used by other organisms, mainly arthropods, as nest refuges and places for prey. In this study, we tested and confirmed the hypothesis that witches' brooms can act as ecosystem engineer for O. hexasperma, promoting significant increases in arthropod/plant interactions. We found arthropods belonging to eleven different orders, associated with O. hexasperma, when plants generated witches' brooms; Psocoptera and Thysanoptera were the most abundant tenants. Plants without witches' brooms were only associated with two arthropod orders (Coleoptera and Araneae). Alternately, we did not find any positive links between the number of witches' brooms in plants, and arthropod abundance and richness within them. This study demonstrates that witches’ brooms are structures that generate better micro-habitats for different organisms, thus maximizing arthropod/plant interactions.
       
  • Drivers of aboveground biomass of high mountain vegetation in the Andes
    • Abstract: Publication date: January 2020Source: Acta Oecologica, Volume 102Author(s): Marian Cabrera, Joost F. DuivenvoordenAbstractThe biomass of plant communities in the high mountains of the Andes (páramo) is a key factor controlling the carbon retention and freshwater supply, which are important environmental services for the human population. Using d-sep tests, we examined four causal path models that show how the aboveground biomass of a series of small plots in undisturbed páramo vegetation in southern Colombia was explained by the abiotic environment (elevation, and five soil variables: pH, exchangeable Al, available P, carbon, and bulk density), vascular species composition (as extracted four axes of a Non-Metric Multidimensional Scaling ordination) and trait information related to plant productivity (community weighted means of specific leaf area (SLA) and maximum plant height). Causality could not be rejected for most path models. Nearly 50% of the aboveground plant biomass was explained by path models in which trait information together with soil variables and species composition had a direct influence on aboveground plant biomass. Community weighted means of SLA were negatively related with aboveground biomass and those of maximum plant height positively. Soil acidity and to a lesser degree soil bulk density acted as key soil variables driving the aboveground biomass. Species composition most strongly affected the variation in the aboveground biomass.
       
  • The genetic consequences of habitat specificity for fig trees in southern
           African fragmented forests
    • Abstract: Publication date: January 2020Source: Acta Oecologica, Volume 102Author(s): Jun-Yin Deng, Simon van Noort, Stephen G. Compton, Yan Chen, Jaco M. GreeffAbstractTheory predicts that fragmentation will lead to reduced gene flow between populations, with loss of genetic diversity and increased population differentiation. However, these predictions may not always hold true, especially for long-lived woody plants and some fig trees (Ficus species) may not be affected by fragmentation because their fig wasps can transfer pollen for distances of over 100 km. Here we contrast the extent of genetic isolation caused by fragmentation among three southern African Ficus species with different habitat dependencies and distributional ranges. Two of the species are restricted to forest environments, which have been fragmented since at least the Pleistocene, and provide an indication of the long-term genetic effects of forest fragmentation. The third species is less forest-dependent, with a more general habitat association and more continuous populations. We found significant population differentiation in all three species. Populations of F. bizanae, a forest specialist with a highly restricted distribution, displayed the most genetic structure, followed by the second forest specialist, F. craterostoma. Populations of the habitat-generalist F. sur were the least genetically structured. Forest specialist Ficus species are clearly not immune to habitat fragmentation, despite extensive pollen flow, and other southern African forest trees are likely to have experienced similar or greater effects of habitat fragmentation. The strong genetic structure of F. bizanae suggests a limited seed dispersal range and local dispersal by the fig wasp pollinator, a possible adaptation to the limited range of its host fig tree.
       
  • Imbalanced stoichiometric patterns in foliar nutrient resorption response
           to N and P addition in grazing alpine grassland
    • Abstract: Publication date: January 2020Source: Acta Oecologica, Volume 102Author(s): Lei Li, Xiangyi Li, Bo Liu, Jiaqiang Lei, Zewei Yue, Chengdao LiAbstractAlthough the effect of nutrient availability on plant nutrient resorption has been extensively studied, the influence of nutrient addition on the coupled biogeochemical cycling of N and phosphorus (P) remains unclear. Studies on how increased nutrient addition affects the imbalance between N and P resorption are limited. We investigated the influence of a wide nutrient addition gradient on the foliar nutrient resorption of dominant grass, Stipa capillata, in grazing alpine grassland. We applied seven addition levels for N (0.5–24 g N ∙ m−2 yr−1) and P (0.05–3.2 g P ∙ m−2 yr−1), collected plant and soil samples, and calculated plant foliar nutrient resorption. Results showed that N and P resorption efficiencies decreased with increasing N addition and N:P resorption ratios. However, N and P resorption efficiencies significantly decreased but N:P resorption ratios increased with the P addition gradient. Moreover, the N:P resorption ratios were negatively correlated with senesced foliar N:P ratios. Our findings suggest that N and P responses to nutrient fertilization are tightly coupled at the intraspecific level. Hence, plants show different tendencies of resorbing nutrient with N and P addition, leading to imbalance between N and P. Plant stoichiometric patterns were regulated by the nutrient status of senesced foliar. This study reveals that nutrient additions accelerate ecosystem N and P cycling, N and P cycles are coupled, but their resorptions are imbalanced. The imbalanced stoichiometric patterns in foliar nutrient resorption response to nutrient enrichment provide insights into N and P cycling under human-driven nutrient imbalance scenarios.
       
  • Ecological similarity explains species abundance distribution of small
           mammal communities
    • Abstract: Publication date: January 2020Source: Acta Oecologica, Volume 102Author(s): José Hidasi-Neto, Luis Mauricio Bini, Tadeu Siqueira, Marcus Vinicius CianciarusoFor several decades, ecologists have been trying to explain how species abundance distributions (SAD) emerge within communities. Niche models predict that species habitat requirements and life-history traits determine SADs. Here, based on predictions from a well-known niche-based SAD (Sugihara's model), we tested whether abundant species are ecologically less similar among each other than less abundant ones, and whether the strength of this relationship is reduced in high productivity areas. Using species abundance and trait data from 88 small mammal communities around the world we found that the most abundant species are similar to other abundant species, but less similar to rare species. However, this relationship is weakened in high-productivity areas, such as the tropics. These results suggest that niche differences moderate species abundances, and that low-productivity habitats have a reduced ecological space, especially for specialist species. A next step to uncover biological processes underlying the formation of SADs is to understand how they are influenced by the order of species arrivals during the assembly of communities.Graphical abstractImage 1
       
  • Direct and indirect effects of elevation, climate and vegetation structure
           on bird communities on a tropical mountain
    • Abstract: Publication date: January 2020Source: Acta Oecologica, Volume 102Author(s): Vinicio Santillán, Marta Quitián, Boris A. Tinoco, Edwin Zárate, Matthias Schleuning, Katrin Böhning-Gaese, Eike Lena NeuschulzAbstractClimate and vegetation structure are important predictors of biodiversity along mountain slopes. The drivers of elevational biodiversity gradients are not yet fully resolved. For instance, there is little understanding of how direct and indirect effects of elevation shape species communities along mountain slopes. In this study, we identify the main drivers of bird diversity along an elevational gradient spanning 2000 m in the Ecuadorian Andes. We simultaneously tested the direct and indirect effects of elevation, temperature, precipitation and vegetation structure on overall bird diversity and on frugivorous and insectivorous birds, using structural equation models (SEMs). We found that elevation was mostly indirectly associated with bird diversity, mediated via abiotic (i.e., temperature, precipitation) and biotic (i.e., vegetation structure) factors. We found consistent positive effects of temperature and vegetation structure and negative effects of precipitation on overall bird diversity and on frugivorous and insectivorous birds. In addition, elevation was directly, positively associated with insectivore richness and abundance, but not with that of frugivores. Our results show that climatic factors and vegetation structure jointly shape the richness of bird communities on tropical mountains. However, other factors, such as biotic interactions or different evolutionary histories of lowland and highland communities, may additionally contribute to elevational patterns in bird diversity. Thus, species communities across tropical mountain slopes are shaped by a multitude of abiotic and biotic factors that need to be studied simultaneously for a mechanistic understanding of patterns in biodiversity.
       
  • Disentangling elevational and vegetational effects on ant diversity
           patterns
    • Abstract: Publication date: January 2020Source: Acta Oecologica, Volume 102Author(s): Chaim J. Lasmar, Carla R. Ribas, Julio Louzada, Antônio C.M. Queiroz, Rodrigo M. Feitosa, Mayara M.G. Imata, Guilherme P. Alves, Gabriela B. Nascimento, Frederico S. Neves, Daniel Q. DomingosAbstractWhen aiming to assess the effects of elevation on animal diversity, many studies have been carried out in different vegetation types occurring across elevational gradients. Thus, it remains unclear if any changes observed in species richness are caused by factors directly associated with elevation or are caused by vegetation change across the gradient. Here, we disentangled the effects of elevation from changes in vegetation by assessing ant diversity patterns along an elevational gradient. We analyzed patterns of ant diversity utilizing two different sampling approaches across the elevational gradient: (1) a standardized sampling including only forest formations and (2) a non–standardized sampling including forest (low elevational bands) and grasslands (high elevational bands). We sampled ants at eight elevational bands of Atlantic Forest in Brazil, and the highest three bands were sampled at both forest and grassland habitat. We found that the two approaches produce contrasting patterns of alpha and beta diversity, but the same pattern of gamma diversity. However, in the non–standardized sampling approach, the regression analysis produced a reduced explanation of the species richness gradient and a decrease in the elevational effect size. Different patterns found in the two approaches could be due to distinct environmental conditions in these habitats. In conclusion, our results highlight the potential bias of non–standardizing vegetation type across elevational gradients when assessing elevational patterns of species diversity.
       
  • Impact of the human footprint on anthropogenic mortality of North American
           reptiles
    • Abstract: Publication date: November 2019Source: Acta Oecologica, Volume 101Author(s): Jacob E. Hill, Travis L. DeVault, Jerrold L. BelantAbstractHuman activities frequently result in reptile mortality, but how direct anthropogenic mortality compares to natural morality has not been thoroughly investigated. There has also been a limited examination of how anthropogenic reptile mortality changes as a function of the human footprint. We conducted a synthesis of cause-specific North American reptile mortality studies based on telemetry, documenting 550 mortalities of known cause among 2461 monitored individuals in 57 studies. Overall 78% of mortality was the result of direct natural causes, whereas 22% was directly caused by humans. The single largest source of mortality was predation, accounting for 62% of mortality overall. Anthropogenic mortality did not increase with the human footprint or with species body mass, though predation mortality increased with decreasing human footprint. The relatively low amount of anthropogenic mortality compared to other taxa suggests that reptiles may be more impacted by indirect than direct anthropogenic mortality. As a result, mitigating these indirect impacts, which include habitat loss and introduction of invasive species, is essential for conservation of North American reptiles.
       
  • Feeding functional responses in a sexually size-dimorphic bird
    • Abstract: Publication date: November 2019Source: Acta Oecologica, Volume 101Author(s): Carolina Bravo, Luis M. Bautista, Carlos Ponce, Juan C. AlonsoAbstractHow animals use food resources according to their relative availability is essential for our understanding and predictions of ecosystem interaction. Non-linear functions between use and availability are described with the feeding functional response, a key tool to describe such functions that is still poorly understood in some cases. For example, in species with a marked sexual size dimorphism it is not clear how such non-linear functions differ between males and females. Here, we used likelihood methods and model selection to model non-linear functions in legume use by male and female great bustards (Otis tarda) based on diet composition data from droppings. The great bustard shows the highest sexual size dimorphism among birds, and it has opportunistic and generalist foraging habits, with a strong selection for legumes. Simple functional-response models described the proportion of legumes in great bustard droppings as a non-linear function of legume availability. Functional response type II fitted to data better than type III in autumn and winter, whereas in spring, type III was the best-fitted model, describing a dietary switch of great bustards feeding on legumes. The best-fitted functional response included an effect of sex in the asymptote of the curve; the female diet included a higher proportion of legumes than the male diet, suggesting a possible effect of sexual size dimorphism. We concluded that great bustards behaved as opportunistic foragers, whose sexual size dimorphism might play a role in the functional response to legumes.
       
  • Succession of litter-decomposing microbial organisms in deciduous birch
           and oak forests, northern Japan
    • Abstract: Publication date: November 2019Source: Acta Oecologica, Volume 101Author(s): Michiru Otaki, Shiro TsuyuzakiAbstractBiological litter decomposition and the litter-associated microbial organisms were monitored for three years to characterize litter decomposition in early and late successional stages. Two forests were used for the investigation: pioneer a forest dominated by birch (Betula platyphylla var. japonica) and a climax forest by oak (Quercus mongolica var. grosseserrata) in the cool-temperate region of northern Japan. Three types of litter were used: birch, oak and mixed litter. The litter decomposition was effective during the first year but 50% of the original litter remained even after three years. Carbon-to-nitrogen ratios in the litter decreased largely in the first year and became stable thereafter. The litter decomposition rates were not different among the litter types and between the forests. The temporal changes in phospholipid fatty acids (PLFAs) showed that fungal biomass reached its peak in the first year and the bacterial biomass increased steadily until the end of the experiment. The concentrations of fungal PLFAs in the litter did not differ between the litter types but were lower in the oak forest. The litter decomposition was performed mostly by fungi, in particular in the early stages, while bacterial decomposition depended on the litter types and/or the forest types. Gram-negative bacteria reached their peak of PLFAs in the second year while gram-positive bacteria PLFAs increased gradually during the three years. Therefore, the succession of microorganisms in the litter occurred from fungi to bacteria and from gram-negative bacteria to gram-positive bacteria in the two forests. Unlike in the case of coniferous or monotonic forests, the effects of forests and litter types on litter decomposition for the first year were weak. The forest types on litter decomposition appeared only for the long-term litter decomposition. The successional changes of microorganisms occurred from fungi to bacteria for long-term litter decomposition processes with increasing N concentration in the litter.
       
  • Current felid (Carnivora: Felidae) distribution, spatial bias, and
           occurrence predictability: testing the reliability of a global dataset for
           macroecological studies
    • Abstract: Publication date: November 2019Source: Acta Oecologica, Volume 101Author(s): Marina Zanin, Bianca dos Santos NevesAbstractThe lack of information about species distribution, also known as Wallacean shortfall, targets most species, even charismatic animals like felids, limiting the performance of scientific study and conservation planning. The knowledge about species distribution (specifically occurrence data) is also affected by restriction of data availability and dispersion of existing information in many data sources. Therefore, we created and tested the reliability and validity of Felidae occurrence database at spatial resolution of 0.5 decimal degree by: (i) investigating knowledge bias generated by charismatic attributes, species detectability, and spatial data aggregation; and (ii) evaluating climatic niche predictability and species-niche patterns mediated by ecological or phylogenetic, which is the main concern of database utilization in macroecological studies. We found 3,549 spatially unique felid occurrence records around the world, considering a resolution scale of 0.5 decimal degree. Numbers of occurrences were positively related to body mass and distribution area (R2 = 0.2, p 
       
  • Fine-scale population structure analysis in Armadillidium vulgare
           (Isopoda: Oniscidea) reveals strong female philopatry
    • Abstract: Publication date: November 2019Source: Acta Oecologica, Volume 101Author(s): Sylvine Durand, Frédéric Grandjean, Isabelle Giraud, Richard Cordaux, Sophie Beltran-Bech, Nicolas BechAbstractIn the last decades, dispersal studies have benefited from the use of molecular markers for detecting patterns differing between categories of individuals and have highlighted sex-biased dispersal in several species. To explain this phenomenon, several hypotheses implying mating systems, intrasexual competition or sex-related handicaps have been proposed. In this context, we investigated sex-biased dispersal in Armadillidium vulgare, a terrestrial isopod with a promiscuous mating system. As a proxy for effective dispersal, we performed a fine-scale investigation of the spatial genetic structure in males and females, using individuals originating from five sampling points located within 70 m of each other. Based on microsatellite markers and spatial autocorrelation analyses, our results revealed that while males did not present a significant genetic structure at this geographic scale, females were significantly and genetically more similar to each other when they were collected in the same sampling point. As females invest more parental care than males in A. vulgare, but also because this species is promiscuous and males experience a high intrasexual competition, our results meet the predictions of most classical hypotheses for sex-biased dispersal. We suggest that widening dispersal studies to other isopods or crustaceans, differing in their ecology or mating system and displaying varying levels of parental care, might shed light on the processes underlying the evolution of sex-biased dispersal.
       
  • The absence of keystone indigenous trees inhibits bird recovery up to a
           decade after invasive tree removal from riparian habitats
    • Abstract: Publication date: November 2019Source: Acta Oecologica, Volume 101Author(s): J.R. Mangachena, S. GeertsAbstractWhen invasive alien trees are removed, ecosystems are usually left to “self-repair”. Little is known about the extent of recovery or whether plant and animal taxa respond in a similar way. In most cases, the absence of a historical condition makes it difficult to measure restoration success and a flexible approach is usually followed using practical target communities. We explored these issues by sampling bird and plant assemblages after the removal of invasive trees, using a chronosequence (space-for-time substitution) approach. We used the Berg River, one of the most invaded riparian systems in the Cape Floristic Region of South Africa, as a case study. Study sites – cleared of Eucalyptus camaldulensis in 2005, 2007, 2008 and 2014 – were sampled in 2014 and compared to invaded and near-pristine areas. In total, 27 native plant species (four trees, six shrubs, seven forbs, four graminoids, four geophytes and two vines) and 26 alien plant species (four trees, three shrubs, twelve forbs and seven graminoids) from 50 genera and 31 families were recorded across all sites and years. Cleared sites had significantly more native plant species than invaded sites, but this was similar to near-pristine sites. Cleared sites had the highest plant species richness, driven by significantly more alien species, but canopy cover was significantly lower than in invaded or near-pristine sites. In total, 2049 birds from 52 species were recorded across all sites and years. A decade after clearing, bird species richness, abundance and community composition are different to near-pristine sites. This is due to the lower abundance and diversity of trees in cleared sites, which could be important as habitat or a food source for birds in an agricultural landscape. From a bird perspective, we support the approach of selectively clearing invasive trees over time to allow native trees to recover through succession. We highlight the importance of monitoring fauna to evaluate recovery after invasive alien plant clearing and to guide further management interventions.
       
  • How far do Asian forest hornbills disperse seeds'
    • Abstract: Publication date: November 2019Source: Acta Oecologica, Volume 101Author(s): Rohit Naniwadekar, Akanksha Rathore, Ushma Shukla, Saniya Chaplod, Aparajita DattaAbstractBiotic seed dispersal of plants is a complex phenomenon that is influenced by multiple seed disperser species with implications for plant fitness and range expansions. While inter-species variation has been well-studied, the importance of incorporating intraspecific variation in seed dispersal is increasingly being acknowledged. We compared seed dispersal patterns of breeding and non-breeding great hornbills Buceros bicornis and a breeding wreathed hornbill Rhyticeros undulatus by combining data on fruiting tree visitations, gut passage time and movement data from tagged hornbills. Seed dispersal probability at nest trees (by breeding males) was low (
       
  • Habitat traits that increase the probability of occupancy of migratory
           birds in an urban ecological reserve
    • Abstract: Publication date: November 2019Source: Acta Oecologica, Volume 101Author(s): J. Jaime Zúñiga-Vega, Israel Solano-Zavaleta, M. Fernanda Sáenz-Escobar, Gonzalo A. Ramírez-CruzAbstractSeveral migratory bird species spend the winter in highly disturbed regions in the tropics. Green areas within cities may be used as wintering grounds and, given the documented population declines of migratory birds, knowledge about the habitat traits that promote the arrival of migratory birds in such fragmented ecosystems is highly necessary. Here, we examined the landscape traits that increased the probability of presence of five migratory species in an ecological reserve immersed within Mexico City. We monitored these species during three consecutive winters and used multiple-season occupancy models (which account for our imperfect detection of these species in the field) to find the particular habitat traits that promote their presence in this urban reserve. Contrary to our expectation, we found that all five species prefer habitat traits associated with the urban areas that surround the core conservation areas of the reserve. We conclude that the heterogeneity of these urban areas (a mixture of areas where exotic trees are abundant and open green areas with minimal tree or shrub cover) promotes the arrival of migratory species with distinct ecological needs.
       
  • Community responses to fine-scale environmental conditions: Ferns alpha
           and beta diversity along Brazilian Atlantic forest remnants
    • Abstract: Publication date: November 2019Source: Acta Oecologica, Volume 101Author(s): Lucas Erickson Nascimento da Costa, Xavier Arnan, Rafael de Paiva Farias, Iva Carneiro Leão BarrosAbstractUnderstanding how local environmental factors affect communities and compositional patterns are crucial to biodiversity conservation, especially in environments that were severally affected by anthropic actions. We analyzed the effects of fine-scale local environmental conditions on alpha and beta diversity of fern communities in three Atlantic forest areas and investigated the mechanisms underlying fern community responses. We sampled ferns and collected local environmental variables in 22 plots in three Atlantic forest areas and used multi-model inferences to identify the relationship between community diversity and composition and local environmental factors. We also applied multivariate analyses to verify whether community composition is constrained by local environmental factors. Finally, we analyzed beta-diversity (dissimilarity in species composition) patterns between and within forest areas and identified the contribution of turnover and nestedness to observed beta-diversity patterns. At the local scale, fern diversity was positively and strongly affected by fine-scale variations in nutrient availability and negatively influenced by soil acidity. Meanwhile, changes in community composition were also related to fine-scale variations in nutrient availability and soil rock coverage. Beta-diversity within forest areas (local scale) was as high as between forest areas (regional scale), a pattern that was virtually driven by species turnover at both scales of analysis. Our results highlight a prominent role of environmental filtering in regulating fine-scale local fern community diversity and composition, to such an extent that fine-scale local variation in species composition is as high as between spatially and climatically distant forest areas.
       
  • Jointed cactus Opuntia aurantiaca modifies soil nutrient concentrations,
           grass species assemblage and biomass yield in a savanna rangeland
    • Abstract: Publication date: November 2019Source: Acta Oecologica, Volume 101Author(s): Sarah Kawanza, Hilton G.T. Ndagurwa, Rayfield J. Chateya, Justice MuvengwiAbstractBiological invasions are currently recognized as a major threat to biodiversity and ecosystem function worldwide, but invasion studies in savanna rangelands are limited. Therefore, we studied the soil properties and grass species abundance, diversity and biomass yield in Opuntia aurantiaca uninvaded, recently-invaded (30 years) sites in a savanna rangeland, Zimbabwe. Soil nutrient concentrations significantly differed between sites, with nutrient-rich soils in Opuntia-invaded sites. The soil nutrient content in invaded sites was greater by a factor of up to 7 for N, 44 for P and 3.4 for Ca. However, soil pH did not differ between sites (p > 0.05), with slightly acidic soils in all sites. Grass species abundance declined while species evenness increased with time since Opuntia invasion. Further, grass species height and biomass yield in the uninvaded sites were greater than those in the recently-invaded and historically-invaded sites. We also observed a shift in above and belowground biomass allocation in grass species suggesting shifts in plastic allocations with invasion. Overall, redundancy analysis showed a significant negative effect of O. aurantiaca density on the abundance, species richness, species diversity and biomass yield of grass species. In contrast, species evenness and dominance were positively correlated with O. aurantiaca density. In conclusion, despite the positive effects of invasion on soil nutrient concentrations, the findings are worrisome as grass abundance, height and biomass yield are negatively affected. Consequently, rangeland productivity might also be curtailed, indicating the need to manage and eradicate O. aurantiaca given a considerable amount of comparable rangeland that can be affected.
       
  • Does road-edge affect liana community structure and liana-host
           interactions in evergreen rainforests in Ghana'
    • Abstract: Publication date: November 2019Source: Acta Oecologica, Volume 101Author(s): Bismark Ofosu-Bamfo, Patrick Addo-Fordjour, Ebenezer J.D. BelfordAbstractThough lianas can respond to human disturbance and forest fragmentation, the effects of forest edge on liana community are poorly documented. This study therefore investigated the effects of road-edge on liana community structure and liana-host interactions in two evergreen rainforests in Ghana (Ankasa Conservation Area, Cape Three Points Forest Reserve). Lianas and their hosts were identified and counted in twenty-four 50 m × 50 m plots in each rainforest. The plots were evenly distributed in edge (0–50 m), interior (200 m) and deep-interior (400 m) sites. The edge site of Cape Three Points Forest Reserve supported significantly higher liana diversity, but there was no edge effect on liana diversity in Ankasa Conservation Area. There were no significant edge effects on liana species composition, abundance, and basal area in both evergreen rainforests. However, there was evidence of strong edge effects on the abundance of some individual liana species. In all the three sites of the two evergreen rainforests, liana species showed random species co-occurrence pattern, with no nested structure in liana-tree interaction network. Although forest edge had weak effects on liana community, some species had increased abundance, compensating the loss of individuals of other species at the edge. Overall, the idiosyncratic edge effect on liana species populations can blur the effects on liana community.
       
  • Manmade structures are used by an invasive species to colonize new
           territory across a fragmented landscape
    • Abstract: Publication date: November 2019Source: Acta Oecologica, Volume 101Author(s): Iulian Gherghel, Riley TedrowAbstractAnthropogenic activity often results in habitat fragmentation that can negatively impact biodiversity by destroying viable habitat and reducing the connectivity of the landscape. Anthropogenic features (such as rail ways) can also have the opposite effect, facilitating the expansion of certain species. Here we demonstrate such a case, wherein anthropogenic activity and structures facilitate the dispersal of a species whose capacity for territorial expansion is limited in the natural environment. Using habitat suitability and connectivity models, we show that the Common Wall Lizard (Podarcis muralis) most likely prefers railways as a means to disperse into new habitats and/or maintain population connectivity across a fragmented habitat (i.e. from their southern populations, moving north along rail way tracks to colonize new suitable habitats). Furthermore, we predict the route and location of future colonization events based on availability of viable habitats and corridors to them. The potential impact of this invasion is estimated to be relatively low.
       
 
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