for Journals by Title or ISSN
for Articles by Keywords
  Subjects -> BIOLOGY (Total: 2999 journals)
    - BIOCHEMISTRY (236 journals)
    - BIOENGINEERING (107 journals)
    - BIOLOGY (1425 journals)
    - BIOPHYSICS (46 journals)
    - BIOTECHNOLOGY (219 journals)
    - BOTANY (220 journals)
    - CYTOLOGY AND HISTOLOGY (28 journals)
    - ENTOMOLOGY (63 journals)
    - GENETICS (162 journals)
    - MICROBIOLOGY (255 journals)
    - MICROSCOPY (10 journals)
    - ORNITHOLOGY (25 journals)
    - PHYSIOLOGY (70 journals)
    - ZOOLOGY (133 journals)

BIOLOGY (1425 journals)                  1 2 3 4 5 6 7 8 | Last

Showing 1 - 200 of 1720 Journals sorted alphabetically
AAPS Journal     Hybrid Journal   (Followers: 20)
Achievements in the Life Sciences     Open Access   (Followers: 4)
ACS Synthetic Biology     Full-text available via subscription   (Followers: 21)
Acta Biologica Colombiana     Open Access   (Followers: 7)
Acta Biologica Hungarica     Full-text available via subscription   (Followers: 4)
Acta Biologica Sibirica     Open Access  
Acta Biomaterialia     Hybrid Journal   (Followers: 25)
Acta Biotheoretica     Hybrid Journal   (Followers: 5)
Acta Chiropterologica     Full-text available via subscription   (Followers: 6)
acta ethologica     Hybrid Journal   (Followers: 4)
Acta Limnologica Brasiliensia     Open Access   (Followers: 3)
Acta Médica Costarricense     Open Access   (Followers: 2)
Acta Musei Silesiae, Scientiae Naturales : The Journal of Silesian Museum in Opava     Open Access  
Acta Neurobiologiae Experimentalis     Open Access  
Acta Parasitologica     Hybrid Journal   (Followers: 9)
Acta Scientiarum. Biological Sciences     Open Access   (Followers: 2)
Acta Scientifica Naturalis     Open Access   (Followers: 2)
Actualidades Biológicas     Open Access   (Followers: 1)
Advanced Health Care Technologies     Open Access   (Followers: 4)
Advanced Studies in Biology     Open Access  
Advances in Antiviral Drug Design     Full-text available via subscription   (Followers: 3)
Advances in Bioinformatics     Open Access   (Followers: 18)
Advances in Biological Regulation     Hybrid Journal   (Followers: 4)
Advances in Biosensors and Bioelectronics     Open Access   (Followers: 6)
Advances in Cell Biology     Open Access   (Followers: 24)
Advances in Cellular and Molecular Biology of Membranes and Organelles     Full-text available via subscription   (Followers: 12)
Advances in Developmental Biology     Full-text available via subscription   (Followers: 11)
Advances in DNA Sequence-Specific Agents     Full-text available via subscription   (Followers: 5)
Advances in Ecological Research     Full-text available via subscription   (Followers: 41)
Advances in Environmental Sciences - International Journal of the Bioflux Society     Open Access   (Followers: 20)
Advances in Enzyme Research     Open Access   (Followers: 9)
Advances in Experimental Biology     Full-text available via subscription   (Followers: 7)
Advances in Genome Biology     Full-text available via subscription   (Followers: 11)
Advances in High Energy Physics     Open Access   (Followers: 19)
Advances in Human Biology     Open Access   (Followers: 1)
Advances in Life Science and Technology     Open Access   (Followers: 14)
Advances in Life Sciences     Open Access   (Followers: 4)
Advances in Marine Biology     Full-text available via subscription   (Followers: 15)
Advances in Molecular and Cell Biology     Full-text available via subscription   (Followers: 22)
Advances in Planar Lipid Bilayers and Liposomes     Full-text available via subscription   (Followers: 3)
Advances in Regenerative Biology     Open Access   (Followers: 1)
Advances in Structural Biology     Full-text available via subscription   (Followers: 8)
Advances in Virus Research     Full-text available via subscription   (Followers: 5)
African Journal of Range & Forage Science     Hybrid Journal   (Followers: 6)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 1)
Ageing Research Reviews     Hybrid Journal   (Followers: 8)
Aging Cell     Open Access   (Followers: 10)
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 2)
Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat     Open Access  
AJP Cell Physiology     Full-text available via subscription   (Followers: 13)
AJP Endocrinology and Metabolism     Full-text available via subscription   (Followers: 22)
AJP Lung Cellular and Molecular Physiology     Full-text available via subscription   (Followers: 3)
Al-Kauniyah : Jurnal Biologi     Open Access  
Alasbimn Journal     Open Access   (Followers: 1)
AMB Express     Open Access   (Followers: 1)
Ambix     Hybrid Journal   (Followers: 3)
American Biology Teacher     Full-text available via subscription   (Followers: 13)
American Fern Journal     Full-text available via subscription   (Followers: 1)
American Journal of Agricultural and Biological Sciences     Open Access   (Followers: 10)
American Journal of Bioethics     Hybrid Journal   (Followers: 10)
American Journal of Biostatistics     Open Access   (Followers: 9)
American Journal of Human Biology     Hybrid Journal   (Followers: 12)
American Journal of Medical and Biological Research     Open Access   (Followers: 5)
American Journal of Plant Sciences     Open Access   (Followers: 19)
American Journal of Primatology     Hybrid Journal   (Followers: 15)
American Malacological Bulletin     Full-text available via subscription   (Followers: 3)
American Naturalist     Full-text available via subscription   (Followers: 68)
Amphibia-Reptilia     Hybrid Journal   (Followers: 6)
Anaerobe     Hybrid Journal   (Followers: 4)
Analytical Methods     Full-text available via subscription   (Followers: 9)
Anatomical Science International     Hybrid Journal   (Followers: 2)
Animal Cells and Systems     Hybrid Journal   (Followers: 4)
Annales de Limnologie - International Journal of Limnology     Hybrid Journal   (Followers: 1)
Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale     Full-text available via subscription   (Followers: 3)
Annales Henri Poincaré     Hybrid Journal   (Followers: 3)
Annales UMCS, Biologia     Open Access   (Followers: 1)
Annals of Applied Biology     Hybrid Journal   (Followers: 7)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18)
Annals of Human Biology     Hybrid Journal   (Followers: 4)
Annual Review of Biomedical Engineering     Full-text available via subscription   (Followers: 17)
Annual Review of Biophysics     Full-text available via subscription   (Followers: 25)
Annual Review of Cancer Biology     Full-text available via subscription   (Followers: 1)
Annual Review of Cell and Developmental Biology     Full-text available via subscription   (Followers: 39)
Annual Review of Food Science and Technology     Full-text available via subscription   (Followers: 15)
Annual Review of Genomics and Human Genetics     Full-text available via subscription   (Followers: 19)
Annual Review of Phytopathology     Full-text available via subscription   (Followers: 10)
Anthropological Review     Open Access   (Followers: 25)
Anti-Infective Agents     Hybrid Journal   (Followers: 3)
Antibiotics     Open Access   (Followers: 9)
Antioxidants     Open Access   (Followers: 4)
Antioxidants & Redox Signaling     Hybrid Journal   (Followers: 8)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 5)
Anzeiger für Schädlingskunde     Hybrid Journal   (Followers: 1)
Apidologie     Hybrid Journal   (Followers: 4)
Apmis     Hybrid Journal   (Followers: 1)
APOPTOSIS     Hybrid Journal   (Followers: 8)
Applied Bionics and Biomechanics     Open Access   (Followers: 8)
Applied Vegetation Science     Full-text available via subscription   (Followers: 9)
Aquaculture Environment Interactions     Open Access   (Followers: 2)
Aquaculture International     Hybrid Journal   (Followers: 22)
Aquaculture Reports     Open Access   (Followers: 3)
Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society     Open Access   (Followers: 6)
Aquatic Biology     Open Access   (Followers: 5)
Aquatic Ecology     Hybrid Journal   (Followers: 30)
Aquatic Ecosystem Health & Management     Hybrid Journal   (Followers: 13)
Aquatic Science and Technology     Open Access   (Followers: 3)
Aquatic Toxicology     Hybrid Journal   (Followers: 18)
Archaea     Open Access   (Followers: 3)
Archiv für Molluskenkunde: International Journal of Malacology     Full-text available via subscription   (Followers: 3)
Archives of Biomedical Sciences     Open Access   (Followers: 7)
Archives of Microbiology     Hybrid Journal   (Followers: 8)
Archives of Natural History     Hybrid Journal   (Followers: 7)
Archives of Oral Biology     Hybrid Journal   (Followers: 2)
Archives of Virology     Hybrid Journal   (Followers: 5)
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2)
Arid Ecosystems     Hybrid Journal   (Followers: 3)
Arquivos do Instituto Biológico     Open Access   (Followers: 1)
Arquivos do Museu Dinâmico Interdisciplinar     Open Access  
Arthropod Structure & Development     Hybrid Journal   (Followers: 2)
Arthropods     Open Access   (Followers: 1)
Artificial DNA: PNA & XNA     Hybrid Journal   (Followers: 2)
Artificial Photosynthesis     Open Access   (Followers: 1)
Asian Bioethics Review     Full-text available via subscription   (Followers: 1)
Asian Journal of Biodiversity     Open Access   (Followers: 5)
Asian Journal of Biological Sciences     Open Access   (Followers: 3)
Asian Journal of Cell Biology     Open Access   (Followers: 6)
Asian Journal of Developmental Biology     Open Access   (Followers: 2)
Asian Journal of Medical and Biological Research     Open Access   (Followers: 2)
Asian Journal of Nematology     Open Access   (Followers: 3)
Asian Journal of Poultry Science     Open Access   (Followers: 4)
Australian Life Scientist     Full-text available via subscription   (Followers: 2)
Australian Mammalogy     Hybrid Journal   (Followers: 6)
Autophagy     Hybrid Journal   (Followers: 2)
Avian Biology Research     Full-text available via subscription   (Followers: 4)
Avian Conservation and Ecology     Open Access   (Followers: 12)
Bacteriology Journal     Open Access   (Followers: 2)
Bacteriophage     Full-text available via subscription   (Followers: 3)
Bangladesh Journal of Bioethics     Open Access  
Bangladesh Journal of Plant Taxonomy     Open Access  
Bangladesh Journal of Scientific Research     Open Access   (Followers: 1)
Berita Biologi     Open Access   (Followers: 1)
Between the Species     Open Access   (Followers: 1)
Bio Tribune Magazine     Hybrid Journal  
BIO Web of Conferences     Open Access  
BIO-Complexity     Open Access  
Bio-Grafía. Escritos sobre la Biología y su enseñanza     Open Access  
Bioanalytical Reviews     Hybrid Journal   (Followers: 2)
Biocatalysis and Biotransformation     Hybrid Journal   (Followers: 6)
Biochemistry and Cell Biology     Hybrid Journal   (Followers: 14)
Biochimie     Hybrid Journal   (Followers: 7)
BioControl     Hybrid Journal   (Followers: 5)
Biocontrol Science and Technology     Hybrid Journal   (Followers: 5)
Biodemography and Social Biology     Hybrid Journal   (Followers: 1)
Biodiversidad Colombia     Open Access  
Biodiversity : Research and Conservation     Open Access   (Followers: 26)
Biodiversity and Natural History     Open Access   (Followers: 5)
Biodiversity Data Journal     Open Access   (Followers: 3)
Biodiversity Informatics     Open Access  
Bioedukasi : Jurnal Pendidikan Biologi FKIP UM Metro     Open Access  
Bioeksperimen : Jurnal Penelitian Biologi     Open Access  
Bioelectrochemistry     Hybrid Journal   (Followers: 2)
Bioelectromagnetics     Hybrid Journal   (Followers: 1)
Bioenergy Research     Hybrid Journal   (Followers: 2)
Bioengineering and Bioscience     Open Access   (Followers: 1)
BioEssays     Hybrid Journal   (Followers: 10)
Bioethics     Hybrid Journal   (Followers: 14)
BioéthiqueOnline     Open Access  
Biofabrication     Hybrid Journal   (Followers: 3)
Biogeosciences (BG)     Open Access   (Followers: 10)
Biogeosciences Discussions (BGD)     Open Access   (Followers: 1)
Bioinformatics     Hybrid Journal   (Followers: 307)
Bioinformatics and Biology Insights     Open Access   (Followers: 15)
Bioinspiration & Biomimetics     Hybrid Journal   (Followers: 6)
Biointerphases     Open Access   (Followers: 1)
Biojournal of Science and Technology     Open Access  
Biologia     Hybrid Journal  
Biologia on-line : Revista de divulgació de la Facultat de Biologia     Open Access  
Biological Bulletin     Partially Free   (Followers: 4)
Biological Control     Hybrid Journal   (Followers: 5)
Biological Invasions     Hybrid Journal   (Followers: 16)
Biological Journal of the Linnean Society     Hybrid Journal   (Followers: 16)
Biological Letters     Open Access   (Followers: 4)
Biological Procedures Online     Open Access  
Biological Psychiatry     Hybrid Journal   (Followers: 43)
Biological Psychology     Hybrid Journal   (Followers: 6)
Biological Research     Open Access  
Biological Rhythm Research     Hybrid Journal   (Followers: 2)
Biological Theory     Hybrid Journal   (Followers: 1)
Biological Trace Element Research     Hybrid Journal  
Biologicals     Full-text available via subscription   (Followers: 9)
Biologics: Targets & Therapy     Open Access   (Followers: 1)
Biologie Aujourd'hui     Full-text available via subscription  
Biologie in Unserer Zeit (Biuz)     Hybrid Journal   (Followers: 42)
Biologija     Open Access  
Biology     Open Access   (Followers: 5)
Biology and Philosophy     Hybrid Journal   (Followers: 16)
Biology Bulletin     Hybrid Journal   (Followers: 1)
Biology Bulletin Reviews     Hybrid Journal  
Biology Direct     Open Access   (Followers: 7)
Biology Letters     Full-text available via subscription   (Followers: 36)

        1 2 3 4 5 6 7 8 | Last

Journal Cover Amphibia-Reptilia
  [SJR: 0.677]   [H-I: 32]   [6 followers]  Follow
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 0173-5373 - ISSN (Online) 1568-5381
   Published by Brill Academic Publishers Homepage  [227 journals]
  • Testing the validity of a commonly-used habitat suitability index
           at the edge of a species’ range: great crested newt  in Scotland
    • Authors: David O’Brien; Jeanette Hall, Alexandre Miró John Wilkinson
      First page: 265
      Abstract: Source: Volume 38, Issue 3, pp 265 - 273Habitat Suitability Indices (HSI) are widely used in conservation and in pre-development surveying. We tested a commonly-used HSI to assess its effectiveness at predicting the presence of a European protected species, the great crested newt Triturus cristatus, at the edge of its range. This HSI is used to understand species’ conservation needs, and in assessing the need for, and designing, mitigation. Given the cost of surveying to developers, it is essential that they can have confidence in the index used in targeting work and in Environmental Impact Assessments. We found that nine of the ten factors which make up the HSI are robust in the region, even in a disjunct population believed to have been isolated for around 3000 years. However, we propose modification of the geographic factor, based upon an improved knowledge of the species’ distribution since the HSI was originally devised.
      PubDate: 2017-08-01T00:00:00Z
  • Microhabitat use within a contact zone of parapatric land salamanders in
           the Swiss Alps
    • Authors: Philine Werner; Benedikt R. Schmidt Stefan Lötters
      First page: 307
      Abstract: Source: Volume 38, Issue 3, pp 307 - 314Studies investigating the contact zones in parapatric species can provide valuable insights into the mechanisms that cause range borders. Such studies can also provide a better understanding of the mechanisms which allow coexistence within contact zones. In land salamanders, parapatric range limits among species are often determined by abiotic factors and interspecific competition. The ranges of the parapatric Salamandra salamandra and S. atra narrowly overlap in the European Alps. Climatic gradients that determine their parapatric range margins suggest dissimilar species-habitat-relationships. However, habitat use for these species has not yet been studied in the contact zone where the parapatric ranges overlap and where the species locally co-occur in syntopy. To better understand their parapatric range limits and local syntopy, we compared the species’ microhabitat use in a contact zone in Switzerland and quantified the degree of interspecific niche overlap in relation to resource availability. We observed that most studied microhabitat variables were neither selected nor avoided by the two species, suggesting random use of the habitat for the variables that we studied. Interspecific niche overlap was generally large, but did not differ from that expected by chance. Unlike previous studies that analyzed patterns of co-occurrence of these species at larger spatial scales, we observed no niche differentiation within the contact zone. Both species likely select the same areas that are suitable and available for salamanders while they similarly avoid generally unsuitable habitat. This indicates that niche differentiation can vary depending on the spatial scale where it is investigated.
      PubDate: 2017-08-01T00:00:00Z
  • Error rates and variation between observers are reduced with the use of
           photographic matching software for capture-recapture studies
    • Authors: Sam S. Cruickshank; Benedikt R. Schmidt
      First page: 315
      Abstract: Source: Volume 38, Issue 3, pp 315 - 325Photographic capture-mark-recapture (CMR) permits individual recognition whilst avoiding many of the concerns involved with marking animals. However, the construction of capture histories from photographs is a time-consuming process. Furthermore, matching accuracy is determined based on subjective judgements of the person carrying out the matching, which can lead to errors in the resulting datasets – particularly in long-term projects where multiple observers match images. We asked 63 volunteers to carry out two photographic-matching exercises using a database of known individuals of the yellow-bellied toad (Bombina variegata). From these exercises, we quantified the matching accuracy of volunteers in terms of false-acceptance and false-rejection rates. Not only were error rates greatly reduced with the use of photographic-matching software, but variation in error rates among volunteers was also lowered. Furthermore, the use of matching software led to substantial increases in matching speeds and an 87% reduction in the false-rejection rate. As even small error rates have the potential to bias CMR analyses, these results suggest that computer software could substantially reduce errors in CMR datasets. The time-savings and reduction in variance among observers suggest that such methods could be particularly beneficial in long-term CMR projects where a large number of images may be matched by multiple observers.
      PubDate: 2017-08-01T00:00:00Z
  • The effects of sunfish on spotted salamander oviposition, hatching time,
           and larval survival
    • Authors: Jon M. Davenport; Maria E. Hampson, Alexis B. King Stephanie C. Bishir
      First page: 327
      Abstract: Source: Volume 38, Issue 3, pp 327 - 337Introduced species have negative effects on amphibian populations by reducing local recruitment and consuming larvae before metamorphosis. Fish can naturally colonize ponds periodically because of flooding and connectivity with river floodplains. However, many fish introductions have been intentional for commercial, recreational, and biocontrol purposes. In southeast Missouri (USA), Ambystoma maculatum will attempt to breed in ponds even if introduced fish (Lepomis spp.) are present. We predicted that fish would have negative effects on salamander oviposition, hatching success and timing, and larval survival. In order to evaluate the effects of introduced fish on A. maculatum across life stages, we conducted pond surveys and a series of mesocosm experiments. Using field surveys, A. maculatum deposited significantly fewer eggs in ponds with fish. In short-term mesocosm experiments, we found that hatching time was not significantly affected by deposition site or fish cues, however, hatching success was lower for eggs deposited in fish ponds. No A. maculatum larvae survived when fish were present, regardless of egg deposition site. Our study is important because we found that, unless a female avoids depositing eggs with fish, one fish species can have profound effects on larval amphibian persistence. Therefore, small-scale fish introductions for recreation can act as a potential source for reduced recruitment and an increased risk of local extinction.
      PubDate: 2017-08-01T00:00:00Z
  • Molecular phylogenetic relationships among Anatolian-Hyrcanian brown frog
           taxa (Ranidae: )
    • Authors: Masoumeh Najibzadeh; Michael Veith, Ahmad Gharzi, Nasrullah Rastegar-Pouyani, Eskandar Rastegar-Pouyani, Sarah Kieren Alireza Pesarakloo
      First page: 339
      Abstract: Source: Volume 38, Issue 3, pp 339 - 350Although the phylogenetic relationship of Western Palearctic brown frogs has been repeatedly studied, the taxonomic status and phylogenetic relationship of Anatolian-Hyrcanian brown frogs is still not fully resolved. Here, we assess the phylogenetic status of these species among Western Palearctic brown frogs with special emphasize on Iranian populations based on two partial mitochondrial DNA sequences (16S rRNA and cytochrome b genes) and the application of a molecular clock. Our results clearly show that Western Palearctic brown frogs underwent a basal radiation in to two main monophyletic clades, the European brown frogs plus the Asian R. asiatica and the Anatolian-Hyrcanian brown frogs, during Early Miocene ca. 20.2 mya. The Hyrcanian (R. pseudodalmatina) and the Anatolian lineage diverged approximately 16.6 mya. The further diverged into two subclades, R. tavasensis and R. macrocnemis, during the Middle Miocene, 14.5 mya. Our results suggest that diversification within these lineages may be closely linked to the formation of Neotethys and Paratethys and the subsequent uplift of the Turkish-Iranian plateau during the Early Miocene which led to restricted gene flow among brown frogs in these regions. Contrary to previous studies, we conclude that the Plio-Pleistocene epoch seems to be not associated to further significant speciation events within Anatolian-Hyrcanian brown frogs.
      PubDate: 2017-08-01T00:00:00Z
  • Reproductive aspects of the Chocoan River turtle (, Geoemydidae) along the
           Colombian Pacific coast
    • Authors: Mario Fernando Garcés-Restrepo; Natalia Rivera-Domínguez, Alan Giraldo John L. Carr
      First page: 351
      Abstract: Source: Volume 38, Issue 3, pp 351 - 361We collected data on several aspects of the reproductive biology of the Chocoan River Turtle (Rhinoclemmys nasuta) as part of a long-term demographic study (2005-2015), along the Pacific coast of the department of Valle del Cauca in Colombia. We palpated 659 females and found 77 gravid, with two peaks in the proportion of females gravid, one between May and June, and another from October to December; there was a significant correlation between the monthly proportion gravid and the monthly amount of precipitation (Spearman rank correlation rs=0.60, P
      PubDate: 2017-08-01T00:00:00Z
  • Nest-site selection and the factors influencing hatching success and
           offspring phenotype in a nocturnal skink
    • Authors: David G. Chapple; Susan N. Keall, Charles H. Daugherty Kelly M. Hare
      First page: 363
      Abstract: Source: Volume 38, Issue 3, pp 363 - 369Nest-site selection in ectothermic animals influences hatching success and offspring phenotype, and it is predicted that females should choose nesting sites that maximise their reproductive fitness, ultimately through the reproductive success of their offspring. We completed nest-site choice experiments on a nocturnal lizard, the egg-laying skink (Oligosoma suteri), to determine whether eggs (and subsequent hatchlings) from cooler nests do better at cooler incubation temperatures, and conversely if those laid in warmer nests perform better at warmer incubation temperatures. We provided a simple nest-choice experiment, with oviposition-retreat sites available in either a hot or a cool sector of the enclosure; in the wild females nest under objects. Female O. suteri laid eggs both during the day and night, and nested more in the hot than cool sector. Eggs from each clutch were split across three egg incubation temperatures (18°C, 22°C, 26°C) to decouple the impact of initial nest-site choice from the subsequent incubation temperature regime. Whether eggs were initially laid in the hot or cool sector was not related to hatching success, offspring phenotype or offspring locomotor performance. We conclude that offspring phenotype and performance is primarily influenced by the temperature during incubation, rather than the initial thermal environment of the nest location. Thus, female O. suteri may select warmer nesting sites to ensure higher incubation temperature and enhanced offspring fitness.
      PubDate: 2017-08-01T00:00:00Z
  • Age structure, growth pattern, sexual maturity, and longevity of  (Anura:
           Leptodactylidae) in temperate wetlands
    • Authors: Javier A. López; Carolina E. Antoniazzi, Roxana E. Llanes Romina Ghirardi
      First page: 371
      Abstract: Source: Volume 38, Issue 3, pp 371 - 379We present the first data on age structure, growth pattern, and lines of arrested growth (LAG) for Leptodactylus latrans in temperate wetlands. Based on these data, we estimate LAG periodicity, age, size at sexual maturity and longevity for this species. We also tested for differences of these parameters between sexes. The age was determined through skeletochronology. Female maturity was determined by presence of differentiated ova, while male maturity was assessed through histological analysis to evaluate spermatozoid production. To establish whether this species marks one LAG per year, eight individuals were kept one year in captivity. For each specimen, LAG was compared for different phalanges of the same toe clipped at start and end of captivity. Leptodactylus latrans marked one LAG per year, indicating a growth rhythm adjusted to a seasonal environment and mainly driven by genetic factors. Longevity was five years for both sexes and frogs reached sexual maturity during the first year, exhibiting a reproductive lifespan of four years. Sexual maturity was related to a minimal size of 60 mm or a body mass of around 33 g. There was no difference in either size or growth pattern between sexes. The von Bertalanffy growth model showed that L. latrans grows fast after metamorphosis and their growth rate strongly decreases at about three years, probably due to the increased allocation of energy to reproduction. The high growth rates and early sexual maturation of L. latrans would allow an elevated rate of population renewal.
      PubDate: 2017-08-01T00:00:00Z
  • Unstable social structure indicates low diversity of relationships in the
           spotted forest skink
    • Authors: Eduard A. Galoyan
      First page: 381
      Abstract: Source: Volume 38, Issue 3, pp 381 - 393To the date, we hardly understand what and how affects the social structure in animals. Longevity and social stability must be the key factors influencing the relations among individuals. To test this suggestion, I described the spatial and social structures of the spotted forest skinks (Sphenomorphus maculatus) from southern Vietnam in the breeding seasons of 2008 and 2009. This species is known to have short lifespan and low social stability among seasons. No difference between male and female space use was revealed. Home ranges were 107.7 ± 23.68 m2 in males and 78.9 ± 27.27 m2 in females, and these contained core areas and activity centres within them. Home ranges and their parts overlapped among individuals of all sexes and were used by several residents, although not at the same time. Intrasexual and intersexual relationships were agonistic, more aggressive among males, and characterized by hierarchy with males as dominants and females as subordinates. Dominance status in males was supported by aggression in males and by submission in females. Females avoided sexual encounters, and no affiliation between sexes or mate guarding behaviour were revealed. A poor social behavioural repertoire was limited by aggressive and submissive behaviour, and it was difficult to distinguish sexual courtship from agonistic interactions. Hence, social and spatial structures were relatively simple in comparison with other saurian species and low stability of social composition is the most probable reason of such a social simplicity.
      PubDate: 2017-08-01T00:00:00Z
  • Postautotomy tail movement differs between colour morphs
           of the red-backed salamander ()
    • Authors: Banan W. Otaibi; Quincey K. Johnson Bradley J. Cosentino
      First page: 395
      Abstract: Source: Volume 38, Issue 3, pp 395 - 399Striped and unstriped colour morphs of the eastern red-backed salamander, Plethodon cinereus, vary in their pre-attack behavioural response to predators, but it is unknown whether the morphs vary in post-attack strategies. Both morphs employ tail autotomy, a post-attack defensive mechanism enabling an individual to release a portion of their tail to facilitate escape from predation. Postautotomy tail movement diverts attention of a predator away from the individual’s body, so natural selection should favor vigorous tail movement in both colour morphs of P. cinereus. We compared the degree of postautotomy tail movement between morphs following simulated predation. Striped individuals exhibited substantially longer and faster tail movement than unstriped individuals. Divergence in postautotomy tail movement may be a direct evolved response to variable predation pressure between colour morphs. Alternatively, tail movement may be constrained in the unstriped morph due to a genetic correlation with colouration (e.g., pleiotropy).
      PubDate: 2017-08-01T00:00:00Z
  • A new population and subspecies of the critically endangered Anatolian
           meadow viper Vipera anatolica Eiselt and Baran, 1970 in eastern Antalya
    • Authors: Bayram Göçmen; Konrad Mebert, Mert Karış, Mehmet Anıl Oğuz Sylvain Ursenbacher
      Abstract: We report on a new population of Vipera anatolica from the Geyik Mountain Range in eastern Antalya Province, Turkey. It represents only the second known location, and is situated in a valley about 200 km east from the terra typica at Kohu Dağ in western Antalya Province. We compare both populations and, based on marked differences in morphology, habitat, genetics, and its geographically isolated location, we describe the recently discovered population as a new subspecies. Aspects of ecology, threats, and conservation needs are discussed.
      PubDate: 2017-07-07T00:00:00Z
  • Trade in spur-thighed tortoises in Morocco: volumes, value and variation
           between markets (Advance Article)
    • Authors: Vincent Nijman; Daniel Bergin
      Abstract: Source: Page Count 13Until the late 1970s spur-thighed tortoises Testudo graeca, endemic to the Mediterranean region, were exported from range countries in large volumes for the pet trade. Testudo graeca was included on CITES Appendix II in 1975, and in 1978 Morocco introduced national protection, banning domestic and international trade. However, the species is still openly traded in Moroccan markets. In 2013-2014 we conducted 48 surveys in 20 Moroccan towns and cities and single surveys in two Spanish exclaves to assess trade levels, size-composition, turnover, and variation between cities. We recorded 3267 T. graeca in 107 shops in 12 cities. Of 989 tortoises measured, two-thirds measured
      PubDate: 2017-07-04T00:00:00Z
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Tel: +00 44 (0)131 4513762
Fax: +00 44 (0)131 4513327
Home (Search)
Subjects A-Z
Publishers A-Z
Your IP address:
About JournalTOCs
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-2016