Results 11 to 20 of about 24,887 (217)

Sexually size dimorphic brains and song complexity in passerine birds [PDF]

open access: yes, 2004
Neural correlates of bird song involve the volume of particular song nuclei in the brain that govern song development, production, and perception. Intra- and interspecific variation in the volume of these song nuclei are associated with overall brain ...
Eens, Marcel   +3 more
core   +2 more sources

Taxonomic status of the Liberian Greenbul Phyllastrephus leucolepis and the conservation importance of the Cavalla Forest, Liberia [PDF]

open access: yes, 2017
We thank Jochen Martens for his long-lasting patience in dealing with the specimen of leucolepis, and Brian Hillcoat for comments and advice. It is hardly possible to thank by name all those who have supported WG over the past 30 years and more since ...
Collinson, J. Martin   +6 more
core   +1 more source

A new quill mite (Acari: Syringophilidae) from the Blackbird [PDF]

open access: yes, 2010
This article describes a new species of quill mite, Torotrogla merulae sp. n., of the family Syringophilidae Lavoipierre, 1953, that lives on the Blackbird Turdus merula (Turdidae: Passeriformes) from Poland.Es wird die neue Vogelfedermilbe Torotrogla ...
Dabert, Jacek   +2 more
core  

Host Exploitation by Cuckoos in China: A Review and Real‐Time Tracking Program for Parasitism Records

open access: yesIntegrative Zoology, EarlyView.
China is a global hotspot for cuckoo‐host diversity, with 17 cuckoo species, exploiting 142 host species. We reveal adaptive matching in body size and egg traits, along with niche partitioning among cuckoos, while identifying eight new host species.
Tao Liu, Canchao Yang
wiley   +1 more source

Efficient Masked Autoencoder for Birdsong Representation with Applications on Wild Bird Species Classification

open access: yesIntegrative Zoology, EarlyView.
Research on mosquito feeding preferences and the malaria parasites they transmit is essential for understanding the interactions between hosts, vectors, and parasites. In this study, vertebrate hosts were identified in 72 mosquitoes. Most blood meals (58.7%) came from birds, representing 25 species, while 40.0% came from mammals (13 species), and 1.3 ...
Qin Zhang   +8 more
wiley   +1 more source

CISO: Species distribution modelling Conditioned on Incomplete Species Observations

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Species distribution models (SDMs) are widely used to predict species' geographic distributions, serving as critical tools for ecological research and conservation planning. Typically, SDMs relate species occurrences to environmental variables representing abiotic factors, such as temperature, precipitation, and soil properties.
Hager Radi Abdelwahed   +6 more
wiley   +1 more source

The relationship of telomere length to baseline corticosterone levels in nestlings of an altricial passerine bird in natural populations [PDF]

open access: yes, 2015
Indexación: Web of Science; Scopus.Background: Environmental stressors increase the secretion of glucocorticoids that in turn can shorten telomeres via oxidative damage.
Guerrero, C.J.   +4 more
core   +1 more source

Stable Isotope Analysis as a Tool to Prevent Illicit Wildlife Trade of Songbirds in Brazil

open access: yesAnimal Conservation, EarlyView.
Feather isotopes provide clear differences between wild and captive songbirds in Brazil. Combining multiple isotopes improved classification accuracy and revealed individuals falsely declared as captive‐bred. These results demonstrate the potential of isotope analysis to detect wildlife laundering in the bird trade.
Luiza Brasileiro   +4 more
wiley   +1 more source

Holding a wing horizontal: Roles for muscles of the pectoral girdle other than the main two flight muscles

open access: yesJournal of Anatomy, EarlyView.
This report explores which muscles of the pectoral girdle are employed to allow birds to hold their wings horizontally with a level aerofoil surface during a glide. Abstract Whilst many birds glide briefly with wings held horizontally, some species maintain this posture for extended periods during soaring.
D. Charles Deeming, María Clelia Mosto
wiley   +1 more source

Fit for purpose? Analysis of the relationship between skull, beak shape and feeding ecology in Psittaciformes

open access: yesJournal of Anatomy, EarlyView.
Psittaciformes exhibit high levels of morphological diversity, particularly in skull and beak structure, previously linked to diet and body size. Although there were some levels of significance between diet and beak shape, body mass was a much stronger co‐variate. Diet is not determining beak shape within the clade.
Shannon L. Harrison   +2 more
wiley   +1 more source

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