Subjects -> BIOLOGY (Total: 3174 journals)
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BIOLOGY (1491 journals)                  1 2 3 4 5 6 7 8 | Last

Showing 1 - 200 of 1720 Journals sorted alphabetically
AAPS Journal     Hybrid Journal   (Followers: 24)
Abasyn Journal of Life Sciences     Open Access   (Followers: 1)
ACS Pharmacology & Translational Science     Hybrid Journal   (Followers: 3)
ACS Synthetic Biology     Hybrid Journal   (Followers: 31)
Acta Biologica Hungarica     Full-text available via subscription   (Followers: 5)
Acta Biologica Marisiensis     Open Access  
Acta Biologica Sibirica     Open Access   (Followers: 1)
Acta Biologica Turcica     Open Access   (Followers: 1)
Acta Biomaterialia     Hybrid Journal   (Followers: 31)
Acta Biotheoretica     Hybrid Journal   (Followers: 3)
Acta Chiropterologica     Full-text available via subscription   (Followers: 5)
acta ethologica     Hybrid Journal   (Followers: 5)
Acta Fytotechnica et Zootechnica     Open Access   (Followers: 2)
Acta Ichthyologica et Piscatoria     Open Access   (Followers: 4)
Acta Médica Costarricense     Open Access   (Followers: 2)
Acta Musei Silesiae, Scientiae Naturales     Open Access  
Acta Neurobiologiae Experimentalis     Open Access  
Acta Scientiae Biological Research     Open Access   (Followers: 1)
Acta Scientiarum. Biological Sciences     Open Access   (Followers: 2)
Acta Scientifica Naturalis     Open Access   (Followers: 2)
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis     Open Access   (Followers: 2)
Acta Universitatis Lodziensis : Folia Biologica et Oecologica     Open Access  
Actualidades Biológicas     Open Access   (Followers: 1)
Advanced Biology     Hybrid Journal   (Followers: 1)
Advanced Health Care Technologies     Open Access   (Followers: 12)
Advanced Journal of Graduate Research     Open Access   (Followers: 1)
Advanced Membranes     Open Access   (Followers: 7)
Advanced Quantum Technologies     Hybrid Journal   (Followers: 3)
Advances in Bioinformatics     Open Access   (Followers: 21)
Advances in Biological Regulation     Hybrid Journal   (Followers: 4)
Advances in Biology     Open Access   (Followers: 10)
Advances in Biomarker Sciences and Technology     Open Access   (Followers: 2)
Advances in Biosensors and Bioelectronics     Open Access   (Followers: 6)
Advances in Cell Biology/ Medical Journal of Cell Biology     Open Access   (Followers: 22)
Advances in Ecological Research     Full-text available via subscription   (Followers: 42)
Advances in Environmental Sciences - International Journal of the Bioflux Society     Open Access   (Followers: 15)
Advances in Enzyme Research     Open Access   (Followers: 10)
Advances in High Energy Physics     Open Access   (Followers: 23)
Advances in Human Biology     Open Access   (Followers: 6)
Advances in Life Science and Technology     Open Access   (Followers: 10)
Advances in Life Sciences     Open Access   (Followers: 5)
Advances in Marine Biology     Full-text available via subscription   (Followers: 23)
Advances in Tropical Biodiversity and Environmental Sciences     Open Access   (Followers: 4)
Advances in Virus Research     Full-text available via subscription   (Followers: 7)
Adversity and Resilience Science : Journal of Research and Practice     Hybrid Journal   (Followers: 3)
African Journal of Ecology     Hybrid Journal   (Followers: 17)
African Journal of Range & Forage Science     Hybrid Journal   (Followers: 12)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 3)
Ageing Research Reviews     Hybrid Journal   (Followers: 13)
Aggregate     Open Access   (Followers: 1)
Aging Cell     Open Access   (Followers: 24)
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 2)
AJP Cell Physiology     Hybrid Journal   (Followers: 14)
AJP Endocrinology and Metabolism     Hybrid Journal   (Followers: 25)
AJP Lung Cellular and Molecular Physiology     Hybrid Journal   (Followers: 3)
Al-Kauniyah : Jurnal Biologi     Open Access  
Alasbimn Journal     Open Access   (Followers: 1)
Alces : A Journal Devoted to the Biology and Management of Moose     Open Access  
All Life     Open Access  
AMB Express     Open Access   (Followers: 1)
Ambix     Hybrid Journal   (Followers: 3)
American Journal of Agricultural and Biological Sciences     Open Access   (Followers: 6)
American Journal of Bioethics     Hybrid Journal   (Followers: 18)
American Journal of Human Biology     Hybrid Journal   (Followers: 15)
American Journal of Medical and Biological Research     Open Access   (Followers: 3)
American Journal of Plant Sciences     Open Access   (Followers: 19)
American Journal of Primatology     Hybrid Journal   (Followers: 15)
American Naturalist     Full-text available via subscription   (Followers: 78)
Amphibia-Reptilia     Hybrid Journal   (Followers: 5)
Anaerobe     Hybrid Journal   (Followers: 3)
Analytical Methods     Hybrid Journal   (Followers: 8)
Analytical Science Advances     Open Access   (Followers: 1)
Anatomical Science International     Hybrid Journal   (Followers: 3)
Animal Cells and Systems     Hybrid Journal   (Followers: 6)
Animal Microbiome     Open Access   (Followers: 1)
Animal Models and Experimental Medicine     Open Access  
Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale     Full-text available via subscription   (Followers: 2)
Annales Henri Poincaré     Hybrid Journal   (Followers: 2)
Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia     Open Access   (Followers: 1)
Annals of Applied Biology     Hybrid Journal   (Followers: 6)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18)
Annals of Human Biology     Hybrid Journal   (Followers: 5)
Annals of Science and Technology     Open Access   (Followers: 2)
Annual Research & Review in Biology     Open Access  
Annual Review of Biomedical Engineering     Full-text available via subscription   (Followers: 18)
Annual Review of Biophysics     Full-text available via subscription   (Followers: 24)
Annual Review of Cancer Biology     Full-text available via subscription   (Followers: 3)
Annual Review of Cell and Developmental Biology     Full-text available via subscription   (Followers: 41)
Annual Review of Food Science and Technology     Full-text available via subscription   (Followers: 13)
Annual Review of Genomics and Human Genetics     Full-text available via subscription   (Followers: 27)
Annual Review of Phytopathology     Full-text available via subscription   (Followers: 11)
Anthropological Review     Open Access   (Followers: 27)
Antibiotics     Open Access   (Followers: 11)
Antioxidants     Open Access   (Followers: 4)
Antioxidants & Redox Signaling     Hybrid Journal   (Followers: 8)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 3)
Anzeiger für Schädlingskunde     Hybrid Journal   (Followers: 1)
Apidologie     Hybrid Journal   (Followers: 4)
Apmis     Hybrid Journal   (Followers: 1)
APOPTOSIS     Hybrid Journal   (Followers: 8)
Applied Biology     Open Access   (Followers: 1)
Applied Bionics and Biomechanics     Open Access   (Followers: 4)
Applied Phycology     Open Access  
Applied Vegetation Science     Full-text available via subscription   (Followers: 9)
Aquaculture Environment Interactions     Open Access   (Followers: 6)
Aquaculture International     Hybrid Journal   (Followers: 24)
Aquaculture Reports     Open Access   (Followers: 3)
Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society     Open Access   (Followers: 8)
Aquatic Biology     Open Access   (Followers: 8)
Aquatic Ecology     Hybrid Journal   (Followers: 41)
Aquatic Ecosystem Health & Management     Hybrid Journal   (Followers: 15)
Aquatic Science and Technology     Open Access   (Followers: 2)
Aquatic Toxicology     Hybrid Journal   (Followers: 25)
Arabian Journal of Scientific Research / المجلة العربية للبحث العلمي     Open Access  
Archaea     Open Access   (Followers: 3)
Archiv für Molluskenkunde: International Journal of Malacology     Full-text available via subscription   (Followers: 1)
Archives of Biological Sciences     Open Access  
Archives of Microbiology     Hybrid Journal   (Followers: 9)
Archives of Natural History     Hybrid Journal   (Followers: 7)
Archives of Oral Biology     Hybrid Journal   (Followers: 2)
Archives of Virology     Hybrid Journal   (Followers: 6)
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2)
Arctic     Open Access   (Followers: 2)
Arid Ecosystems     Hybrid Journal   (Followers: 2)
Arquivos do Museu Dinâmico Interdisciplinar     Open Access  
Arthropod Structure & Development     Hybrid Journal   (Followers: 2)
Arthropod Systematics & Phylogeny     Open Access   (Followers: 5)
Artificial DNA: PNA & XNA     Hybrid Journal   (Followers: 2)
Artificial Intelligence in the Life Sciences     Open Access  
Asian Bioethics Review     Full-text available via subscription   (Followers: 2)
Asian Journal of Biological Sciences     Open Access   (Followers: 2)
Asian Journal of Biology     Open Access  
Asian Journal of Biotechnology and Bioresource Technology     Open Access  
Asian Journal of Cell Biology     Open Access   (Followers: 4)
Asian Journal of Developmental Biology     Open Access   (Followers: 1)
Asian Journal of Medical and Biological Research     Open Access   (Followers: 3)
Asian Journal of Nematology     Open Access   (Followers: 4)
Asian Journal of Poultry Science     Open Access   (Followers: 3)
Atti della Accademia Peloritana dei Pericolanti - Classe di Scienze Medico-Biologiche     Open Access  
Australian Life Scientist     Full-text available via subscription   (Followers: 2)
Australian Mammalogy     Hybrid Journal   (Followers: 8)
Autophagy     Hybrid Journal   (Followers: 7)
Avian Biology Research     Hybrid Journal   (Followers: 4)
Avian Conservation and Ecology     Open Access   (Followers: 16)
Bacterial Empire     Open Access   (Followers: 1)
Bacteriology Journal     Open Access   (Followers: 2)
Bacteriophage     Full-text available via subscription   (Followers: 2)
Bangladesh Journal of Bioethics     Open Access  
Bangladesh Journal of Plant Taxonomy     Open Access  
Bangladesh Journal of Scientific Research     Open Access  
Berita Biologi     Open Access  
Between the Species     Open Access   (Followers: 2)
BIO Web of Conferences     Open Access  
Bio-Grafía. Escritos sobre la Biología y su enseñanza     Open Access  
Bio-Lectura     Open Access  
BIO-SITE : Biologi dan Sains Terapan     Open Access  
Bioactive Compounds in Health and Disease     Open Access  
Biocatalysis and Biotransformation     Hybrid Journal   (Followers: 5)
BioCentury Innovations     Full-text available via subscription   (Followers: 2)
Biochemistry and Cell Biology     Hybrid Journal   (Followers: 15)
Biochimie     Hybrid Journal   (Followers: 4)
BioControl     Hybrid Journal   (Followers: 2)
Biocontrol Science and Technology     Hybrid Journal   (Followers: 5)
Biodemography and Social Biology     Hybrid Journal  
BIODIK : Jurnal Ilmiah Pendidikan Biologi     Open Access  
BioDiscovery     Open Access   (Followers: 2)
Biodiversitas : Journal of Biological Diversity     Open Access   (Followers: 1)
Biodiversity : Research and Conservation     Open Access   (Followers: 28)
Biodiversity Data Journal     Open Access   (Followers: 7)
Biodiversity Informatics     Open Access   (Followers: 2)
Biodiversity Information Science and Standards     Open Access   (Followers: 2)
Bioeduscience     Open Access  
Bioeksperimen : Jurnal Penelitian Biologi     Open Access  
Bioelectrochemistry     Hybrid Journal   (Followers: 1)
Bioelectromagnetics     Hybrid Journal   (Followers: 1)
Bioenergy Research     Hybrid Journal   (Followers: 3)
Bioengineering and Bioscience     Open Access   (Followers: 1)
BioEssays     Hybrid Journal   (Followers: 10)
Bioethica     Open Access   (Followers: 1)
Bioethics     Hybrid Journal   (Followers: 21)
BioéthiqueOnline     Open Access   (Followers: 1)
Biogeographia : The Journal of Integrative Biogeography     Open Access   (Followers: 2)
Biogeosciences (BG)     Open Access   (Followers: 14)
Biogeosciences Discussions (BGD)     Open Access   (Followers: 4)
Bioinformatics     Hybrid Journal   (Followers: 226)
Bioinformatics Advances : Journal of the International Society for Computational Biology     Open Access   (Followers: 1)
Bioinformatics and Biology Insights     Open Access   (Followers: 13)
Biointerphases     Open Access   (Followers: 1)
Biojournal of Science and Technology     Open Access  
BioLink : Jurnal Biologi Lingkungan, Industri, Kesehatan     Open Access  
Biologia     Hybrid Journal   (Followers: 1)
Biologia Futura     Hybrid Journal  
Biologia on-line : Revista de divulgació de la Facultat de Biologia     Open Access  
Biological Bulletin     Partially Free   (Followers: 6)
Biological Control     Hybrid Journal   (Followers: 6)
Biological Invasions     Hybrid Journal   (Followers: 22)
Biological Journal of the Linnean Society     Hybrid Journal   (Followers: 19)
Biological Procedures Online     Open Access  
Biological Psychiatry     Hybrid Journal   (Followers: 52)
Biological Psychology     Hybrid Journal   (Followers: 5)

        1 2 3 4 5 6 7 8 | Last

Similar Journals
Journal Cover
Avian Biology Research
Journal Prestige (SJR): 0.401
Citation Impact (citeScore): 1
Number of Followers: 4  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1758-1559 - ISSN (Online) 1758-1567
Published by Sage Publications Homepage  [1174 journals]
  • Effects of urban sugar water feeding on bird body condition and avian
           diseases

    • Free pre-print version: Loading...

      Authors: Daria A Erastova, Josie A Galbraith, Kristal E Cain, Yolanda van Heezik, Ellen A Hume, Margaret C Stanley
      Abstract: Avian Biology Research, Ahead of Print.
      Garden bird sugar water feeding is increasingly popular worldwide, but little is known about its effects on bird health and associated diseases. There is a concern that feeding stations can accumulate pathogens and facilitate pathogen transmission between individuals, resulting in adverse effects on body condition of visiting birds. We tested the effects of sugar water feeding in urban New Zealand backyards by sampling target species for multiple infections and comparing bird body condition. For this, we compared backyards with and without sugar water feeders and again compared existing sugar water feeders with various sugar concentrations in two cities and in two seasons. Birds caught in gardens with sugar water feeders had poorer body condition; however, birds had better body condition in the city with the warmer climate (Auckland), during summer, and in gardens with high (≥20%) sugar concentration in sugar water feeders in winter. All screening tests for Chlamydia psittaci and Salmonella spp. returned negative results. Avian poxvirus prevalence in tauhou (Zosterops lateralis) was four times higher in the city with a warmer climate. The likelihood of lice infection in tauhou was lower in gardens with feeders, in the warmer city, in summer, and at feeders with higher sugar concentrations. In tūī (Prosthemadera novaeseelandiae), the likelihood of lice infection decreased with an increase in sugar concentration. Coccidia infection was 4.25 times higher in tauhou in gardens with feeders. Despite the identified risks associated with sugar water feeding, there appear to be potential benefits for native nectarivorous birds, specifically in winter.
      Citation: Avian Biology Research
      PubDate: 2022-06-23T01:15:46Z
      DOI: 10.1177/17581559221110107
       
  • Causes of admission and outcomes of white-tailed eagles Haliaeetus
           albicilla in wildlife rescue centres in the Czech Republic during
           2010–2020

    • Free pre-print version: Loading...

      Authors: Lenka Rozsypalová, Dana Rymešová, Petr Stýblo, Ivan Literák
      Abstract: Avian Biology Research, Ahead of Print.
      Admission records from wildlife rescue centres can help identify causes of morbidity for species of conservation concern, and to assess the effectiveness of rehabilitation. This study documents the causes of admission and outcomes of treatment in 68 white-tailed eagles admitted to rescue centres in the Czech Republic. We determine the factors that contribute to the outcome of rehabilitation. Most admitted birds were juveniles (1st calendar year [CY]; n = 25), followed by immatures (2nd–4th CY; n = 23) and adults (≥5 CY; n = 17). We categorised admission causes into (1) trauma-related cases (most often unknown trauma, followed by collision and intraspecific fights), (2) non-trauma cases (weakness, toxicosis and becoming stuck in mud or entangled in rope) and (3) orphaned young birds. Trauma-related admissions were most numerous totalling 59%, non-trauma admissions accounted for 35% with the remaining 6% comprising orphaned young birds. At least a third of eagle admissions were caused by anthropogenic factors. In total, 40% of admitted eagles were released back to the wild, 35% died or were euthanized and 25% remained permanently in captivity. Eagles admitted due to non-trauma-related causes had a significantly higher probability of being released into the wild than those admitted due to trauma. Immature eagles were less likely to be released than juvenile individuals. Admissions data are valuable for conservation research, allowing for trends in threats towards species of conservation concern to be quantified, over time, throughout human-dominated landscapes.
      Citation: Avian Biology Research
      PubDate: 2022-06-07T06:37:53Z
      DOI: 10.1177/17581559221107083
       
  • Turdus flavipes altitudinal migration in the Atlantic Forest The
           Yellow-legged Thrush is a partial altitudinal migrant in the Atlantic
           Forest

    • Free pre-print version: Loading...

      Authors: André de Camargo Guaraldo, Juliane Coimbra Bczuska, Lilian Tonelli Manica
      Abstract: Avian Biology Research, Ahead of Print.
      Few studies on bird migration address altitudinal migration in South America, a regional-scale movement currently known for only nine species within the threatened Atlantic Forest biome. The Yellow-legged Thrush Turdus flavipes (YLTH) is one of such migrants thus far studied within a narrow altitudinal gradient and for which only fruits are pointed as the likely triggers of its seasonal movements. Here, we expand this knowledge by testing the hypotheses that arthropod and fleshy fruit availabilities, and climatic variables may all play roles in the seasonal abundance of this species along a broader altitudinal gradient (10-1,100 m asl) in the Atlantic Forest. We estimated YLTH density and its food resource availability in sites at three different altitudes. Besides supporting previous findings on the YLTH migratory behaviour, our findings reveal a novel and complex seasonal density variation of the species across altitudes, consistent with a partial altitudinal migration from higher altitudes. Aside from fruit availability, rainfall also partially influenced such behaviour, a new perspective for this species. Besides providing a broader picture for the altitudinal migration of YLTHs, we conclude by stressing the need for further studies on the understudied altitudinal migration system of birds within South America, including the assessment of the general validity of current hypotheses on the mechanisms underlying this interesting behaviour and its evolution.
      Citation: Avian Biology Research
      PubDate: 2022-05-04T05:10:15Z
      DOI: 10.1177/17581559221097269
       
  • Nest predation, brood parasitism and the reproductive success of the
           masked laughingthrush Garrulax perspicillatus in the rural habitat of
           central China

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      Authors: Weibin Guo, Buge Lin, Zhiqing Hu, Shudan Tan, Jiaying Tian, Changcao Wang
      First page: 61
      Abstract: Avian Biology Research, Ahead of Print.
      Knowledge of nest site selection and reproductive ecology is fundamental to understanding the evolution of life history traits and developing species conservation strategies. However, life history traits of species in the genus Garrulax are poorly known. Particularly, research on the breeding biology of Garrulax perspicillatus in their natural habitat and comparison between populations in different environments (rural vs urban) are lacking. We presented data of nest site selection and breeding ecology of Masked Laughingthrush in central China during 2021, and made a detailed investigation on nest predation and interspecific brood parasitism. The breeding season began from March and ended in August. Most nests were built on Sulphur Bamboo (Phyllostachys sulphurea). First egg laying occurred between late March and late July. Incubation period lasted 13.9 days (±0.3 SE; 13–15) and nestling period of 13.1 days (±0.2 SE; 12–15). Average clutch size was 3.8 eggs (±0.1 SE; 3–7), and brood size at fledging was 2.7 young (±0.2 SE; 1–4). Overall, 36.2% of nesting attempts successfully fledged at least one young. Nest predation (0% in March, 38.2% in April, 30.0% in May, 20.0% in June and 27.3% in July) and interspecific brood parasitism (13.3% in May, 40.0% in June and 36.4% in July) were two main reasons for nest failure. This is the first study that provided detailed information of breeding ecology of Masked Laughingthrush in rural habitat, and we discussed the difference of life history traits between urban and rural habitats.
      Citation: Avian Biology Research
      PubDate: 2022-01-31T12:31:14Z
      DOI: 10.1177/17581559211072655
       
  • Circadian activity in different photoperiod (12L: 12 D) and (8L: 16D) in
           passerine finches

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      Authors: Garima Singh, Sachin Kumar
      First page: 68
      Abstract: Avian Biology Research, Ahead of Print.
      Circadian rhythms are more synchronized in birds than mammals. Circadian clock functions as a timing reference allow organisms fluctuations in their environments and are the basis for the transduction of seasonality from photoperiod. The present study was performed to determine the effect of constant dim and bright light illumination on circadian behavior of baya weaver bird (Ploceus philippinus), black-headed munia (Lonchura malaca malaca), and red-headed bunting (Emberiza bruniceps). It analyzed the data of locomotors activity of these under the effect of different photoperiods (12L: 12D and 8L: 16D) for a period of 30 days. In the captivity, birds were acclimatized for 4 weeks and were subjected to photoperiodic chambers (60×45×35 cm3) providing short-day conditions (8h light: 16h darkness; 8L:16D). Total activity profile was observed for 30 days under 12L: 12D and 8L: 16D photoperiod. Under 12 L: 12D photoperiod, significant response was observed in two of the four birds in daily profile of baya weaver bird and also in black-headed munia but the marginal significant response noticed in one of the four birds under 8L: 16D. The comparison of day and night total activity count in baya weaver bird and black-headed munia showed the maximum activity in weaver bird under 12L: 12D photoperiod.
      Citation: Avian Biology Research
      PubDate: 2022-01-27T09:21:35Z
      DOI: 10.1177/17581559221075982
       
  • Keratinolytic bacteria from the feathers of wild Dark-eyed Juncos (Junco
           hyemalis)

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      Authors: Minh D. Tran, John W. Dille, Weslin L. Camden, Diamond Brunt, Christopher M. Rogers, Mark A. Schneegurt
      First page: 73
      Abstract: Avian Biology Research, Ahead of Print.
      We collected >300 bacterial isolates from overwintering Dark-eyed Juncos (Junco hyemalis) to find that ∼40% appear to degrade the structural protein of feathers using extracellular keratinase enzymes. A guild of bacteria (∼18% of total counts) grew significantly better on basal salt medium (BSM) plates containing feather meal than on BSM agar-only plates (∼8% total counts). The genus-level profile of the 107 most active keratinolytic bacterial isolates shows that nearly half are Bacillus species. Keratinolytic Frigoribacterium, Microbacterium, Okibacterium, Pantoea, Sphingomonas, Staphylococcus, and Stenotrophomonas were found, among others. Active isolates were shown to degrade whole feathers, used feather meal as a sole carbon and energy source, and produced zones of clearing indicative of extracellular proteases on milk agar plates. Our novel in vitro keratinase assay uses ninhydrin to quantitate the release of amino acids from exogenously added keratin, with Bacillus licheniformis str. ATCC 14580 serving as a positive control. Keratinolytic isolates were grown in the presence of feather meal to induce keratinase release and this conditioned medium, called the enzyme extract, was clarified by centrifugation and filtration. The enzyme reaction was completed in 30 min and was positively correlated with the amount of extract added, until reaching color saturation. Bacillus pumilus str. F166 was the most active isolate and Bacillus cereus str. F65 was about half as active as the positive control. Bacillus cereus str. F27 performed well too. We also have demonstrated strong keratinolytic activity against raw wool α-keratin. Juncos are long-distance migrant birds that carry bacteria on their feathers, both beneficial and harmful to plants. The abundant keratinolytic bacteria on feathers are capable of structurally damaging the feathers, potentially reducing bird fitness and reproductive success. Keratinases have uses in tanning, silage, and remediation. Keratinases may be useful in the treatment of onychomycoses and actinic keratoses in medical and veterinary settings.
      Citation: Avian Biology Research
      PubDate: 2022-01-27T09:20:35Z
      DOI: 10.1177/17581559211072656
       
  • Analysis of trade in endemic Javan hill partridges over the last quarter
           of a century period

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      Authors: Vincent Nijman
      First page: 84
      Abstract: Avian Biology Research, Ahead of Print.
      There is increasing recognition of the impact that wildlife trade has on globally threatened and geographically restricted species. For only a few species do we have long-term datasets on their presence in domestic trade. The Asian Songbird Trade Crisis has highlighted the detrimental role that the cage bird trade has on populations of wild birds (songbirds and others) throughout Asia. Starting in 1994, I have visited bird markets in Java and Bali, Indonesia, recording the presence of chestnut-bellied hill partridges Arborophila javanica (endemic to most of Java apart from the easternmost part) and white-faced hill partridges A. orientalis (endemic to easternmost Java). The data thus collected allowed me to test hypotheses related to rarity, price, and purported population trends. No change in the number of hill partridges in trade was observed over this period. The more widespread chestnut-bellied hill partridge was recorded in higher numbers (mean of 1.7 birds survey−1) than white-faced hill partridges (mean of 0.4 birds survey−1). I monitored their online trade on four bird selling platforms and two dedicated hill partridge Facebook pages. Like the trade in the bird markets, the chestnut-bellied hill partridge was recorded in higher numbers than white-faced hill partridges (106 vs 44 birds). Both species were for sale both within and outside their native ranges (17 cities for chestnut-bellied and 10 cities for white-face hill partridges) suggesting extensive trade networks with birds being transported hundreds of kilometres. Average asking prices were similar for both species (US$31) and were not related to the minimum monthly wage of the cities in which the birds were offered for sale. I estimate that annually 3500 chestnut-bellied hill partridges and 700 white-faced hill partridges are sold in the bird markets on Java and Bali. Despite the absence of a harvest quota, the presence of both species over a 27-year period in numerous bird markets, and over the last decade online, indicated the absence of commitment and political and societal pressures to curb the illegal trade in birds in Indonesia.
      Citation: Avian Biology Research
      PubDate: 2022-04-06T01:32:25Z
      DOI: 10.1177/17581559221086469
       
  • Provisioning behavior of male and female Loggerhead Shrikes

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      Authors: Gary Ritchison, Lauren Lewis, C. Adam Heist
      First page: 93
      Abstract: Avian Biology Research, Ahead of Print.
      The unique predatory, caching, and impaling behaviors of shrikes (Laniidae) may provide these unusual passerines with alternative provisioning strategies compared to other songbirds, but few studies have determined the impact these unique behaviors have on provisioning rates. Our objectives were to compare the provisioning behavior of male and female Loggerhead Shrikes (Lanius ludovicianus), and determine how their provisioning behavior was influenced by nestling age. The provisioning behavior of six pairs of Loggerhead Shrikes was videotaped from 15 April to 15 August 2004–2007 in Garrard and Madison counties, Kentucky, USA. For each nest visit by a shrike, the sex of the visiting adult, number of prey items delivered, size of prey, type of prey, and the duration of the nest visit were recorded. Adults made 2169 visits to nests, with males (49%) and females (51%) making similar numbers of visits. Males and females differed in time spent at nests, with males spending less time at nests per visit (mean = 12.0 s, N = 1062) than females (77.0 s, N = 1107). Feeding rates did not differ between the sexes, but feeding rates did increase with nestling age. The size of prey delivered to nestlings also tended to increase with nestling age. Invertebrates comprised 65% of the identified prey items, and cached items made up the remaining 35%. Although many passerine species increase provisioning rates as nestling demand increases, the caching behavior of shrikes may allow adults to reliably increase both feeding rates and prey size as nestling age and demand increase as well as act as buffers when prey availability declines. The caching behavior of shrikes provides them with parental provisioning strategies not available to non-caching songbirds.
      Citation: Avian Biology Research
      PubDate: 2022-05-16T11:22:39Z
      DOI: 10.1177/17581559221092692
       
  • Natal philopatry is associated with smaller nest size in a cavity-nesting
           bird with consequences for nest box temperature

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      Authors: Angelica N Reed, Susan B McRae
      First page: 100
      Abstract: Avian Biology Research, Ahead of Print.
      Considerable within-population variation in nest size exists among cavity nesters. We sought to explain this by studying a multi-brooded population of Eastern Bluebirds (Sialia sialis) breeding in nest boxes. We examined seasonal change in nest weights and compared the weights of nests built by immigrant and resident females. We further investigated whether nest weight correlated with maternal condition or breeding success. Nest weight measured after broods fledged was correlated with nest height at the start of incubation. Breeders spent fewer days building and built successively smaller, lighter nests in later nesting attempts. Female bluebirds performed the majority of nest construction. Nests built by immigrant females were significantly larger on average than those built by female recruits hatched on site, and the seasonal decline in nest weight was more pronounced for natally philopatric females. For the first time, we present evidence that the weights of philopatric females’ first nests were significantly positively correlated with the weights of the nests they were raised in, suggesting an effect of natal memory. Contrary to expectation, neither maternal condition nor reproductive success (clutch size, hatching success, brood size, and fledging success) was related to nest weight. To investigate whether smaller nests provided a thermal advantage in summer nest attempts when afternoon box temperatures can exceed 41°C, we measured the temperature within nest boxes using programmable data loggers. Mean daily maximum box temperatures during incubation were significantly positively related to nest weight and significantly negatively related to the volume of free space above the nest. Increased air circulation above the nest likely contributed to cooling the boxes when ambient temperatures were high. Reducing nest size was therefore advantageous, especially in later nesting attempts when ambient temperatures were warmest. Seasonal decline in nest weights and differences between immigrant and natally philopatric females merits further investigation.
      Citation: Avian Biology Research
      PubDate: 2022-04-09T02:07:23Z
      DOI: 10.1177/17581559221092642
       
  • Corrigendum to Winter diet of Long-eared Owls (Asio otus) in the southern
           Pannonian Plain (Serbia, Vojvodina)

    • Free pre-print version: Loading...

      First page: 113
      Abstract: Avian Biology Research, Ahead of Print.

      Citation: Avian Biology Research
      PubDate: 2021-11-26T11:39:44Z
      DOI: 10.1177/17581559211061005
       
 
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