Results 41 to 50 of about 22,948 (213)

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

, 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., Krause, J.S., Quirici, V., Vásquez, R.A., Wingfield, J.C.   +4 more
core   +1 more source

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

Animal 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, Fábio J. V. Costa, Paulo R. R. Ramos, Vladimir E. Costa, Gabriela B. Nardoto   +4 more
wiley   +1 more source

Soil management of olive groves has contrasting effects on nest densities and reproductive success of tree-nesting passerines

Avian Conservation and Ecology, 2022
Agri-environmental measures aim at mitigating the negative impacts of modern agriculture on farmland biodiversity. For example, soil management practices can positively influence the abundance and diversity of songbirds in olive groves by enhancing ...
Juan Carlos Castro-Caro, Isabel C. Barrio, Francisco Sánchez Tortosa   +2 more
doaj  

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

Journal 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

Bactérias zoonóticas isoladas de Passeriformes silvestres recuperados do tráfico de animais no estado do Ceará/Brasil [PDF]

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2019
RESUMO A ordem dos Passeriformes é uma das mais pressionadas pelas ações antrópicas, especialmente as relativas ao tráfico de animais, que, devido às más condições de manejo e higiênico-sanitárias, favorecem a infecção dos espécimes por patógenos ...
F.C. Gaio, E.S. Lopes, B.P. Lima, C.C. Carmo, A.R. Marques, F.R. Oliveira, M.S.M.G. Amaral, N.M. Pascoal Filho, A.S. Carreira, A.J.F. Beleza, R.S.C. Teixeira, A. Havt, W.C. Maciel   +12 more
doaj   +1 more source

New records of feather mites (Sarcoptiformes: Proctophyllodidae) on tanagers (Passeriformes: Thraupidae) from Brazil

Entomological Communications, 2021
Herein, three feather mite species (Analgoidea: Proctophyllodidae) are reported from tanagers (Passeriformes: Thraupidae) in Brazil: Proctophyllodes thraupis Atyeo & Braasch, 1966 on Thraupis ornata (Sparrman, 1789), Thraupis palmarum (Wied, 1821), and ...
Fabio A. Hernandes
doaj   +1 more source

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

Journal 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, Gregory P. Sutton, D. Charles Deeming   +2 more
wiley   +1 more source

Elevation, rather than land use, causes important dietary shifts in the Mediterranean golden eagle

Journal of Zoology, EarlyView.
In an ever‐changing landscape, golden eagles in the Iberian Peninsula demonstrate remarkable dietary adaptability. We monitored 50 distinct breeding events over 4 years using camera traps, collecting over 520 000 images. Elevation, rather than land use, emerged as the main driver of prey composition: lagomorphs and columbiforms dominated at lower ...
D. Gambra, E. Navarro, J. Martel, N. Fernández‐Pesquera, P. Ortega, A. San Miguel, R. Perea, M. Peláez   +7 more
wiley   +1 more source

Multidirectional chromosome painting substantiates the occurrence of extensive genomic reshuffling within Accipitriformes. [PDF]

, 2015
BACKGROUND: Previous cross-species painting studies with probes from chicken (Gallus gallus) chromosomes 1-10 and a paint pool of nineteen microchromosomes have revealed that the drastic karyotypic reorganization in Accipitridae is due to extensive ...
Beiyuan Fu, Bertrand Bed’Hom, Fengtang Yang, Gauthier Dobigny, Jinghuan Wang, Kai He, Malcolm A. Ferguson-Smith, Patricia C. M. O’Brien, Vitaly Volobouev, Weiting Su, Wenhui Nie   +10 more
core   +4 more sources

Citizen science reveals host‐switching in louse flies and keds (Diptera: Hippoboscidae) during a period of anthropogenic change

Medical and Veterinary Entomology, EarlyView.
A study of louse flies in the United Kingdom, Isle of Man, and Ireland found 212 different interactions between Hippoboscidae and their hosts, of which 70 were previously unrecorded. No louse flies were found on aquatic species of birds. Host‐switching to gulls (Laridae) has occurred during a period in which these species have started relying on ...
Denise C. Wawman, Adrian L. Smith, Ben C. Sheldon   +2 more
wiley   +1 more source