Results 71 to 80 of about 6,895 (265)

Chromosomal Polymorphism inForpus Xanthopterygius(Psittaciformes: Aves) [PDF]

Caryologia, 1983
SUMMARYKaryotypic analyses of 41 specimens of Forpus xanlhopterygius (Psittaciformes: Aves) reveal a diploid number of 86 and three different karyotypes were observed. A chromosomal polymorphism is present which involves two pairs of chromosomes. It is suggested that the observed polymorphism resulted from a translocation involving pairs 1 and 5.
de Lucca, Edmundo José, de Marco, Dagmar Aparecida   +1 more
openaire   +2 more sources

Beyond Species Diversity: Functional Approaches Reveal Consistent Fauna Community Responses to Exotic Grass Invasion in Arid Lands

Ecology and Evolution, Volume 16, Issue 4, April 2026.
To assess whether the impacts of exotic plant invasion can be generalised across taxa, we developed a conceptual framework predicting faunal responses to grass invasion in open, arid ecosystems and tested our predictions using data on birds, reptiles and ants from sites invaded by buffel grass (Cenchrus ciliaris) and paired uninvaded sites.
Ellen Ryan‐Colton, Glenda M. Wardle, John L. Read, Kris French, Christine A. Schlesinger   +4 more
wiley   +1 more source

Prevalence of Sarcocystis calchasi in free-ranging host species: Accipiter hawks and Common Woodpigeon in Germany [PDF]

, 2012
The apicomplexan parasite Sarcocystis calchasi (S. calchasi) triggers pigeon protozoal encephalitis, a neurologic disease in columbids. Accipiter hawks have been identified as the final host, and Columbidae and Psittaciformes as intermediate hosts.
Ciruela, Antonio, Cooper, Dermot M. F., Everett, Katy L., Halls, Michelle L., Klussmann, Enno, Skroblin, Philipp, Willoughby, Debbie   +6 more
core   +1 more source

Harnessing iEcology data to uncover invasive species behaviour

Methods in Ecology and Evolution, Volume 17, Issue 4, Page 1022-1031, April 2026.
Abstract Invasive animal species threaten ecosystems, biodiversity and human livelihoods. Behavioural traits such as boldness, exploratory tendencies, learning ability and social interactions are known to influence invasion success. Yet these behavioural traits remain underexplored due to challenges in observing behaviour across large spatial and ...
Peter Mikula, Pavel Pipek, Martin Bulla, María L. Castillo, Shawan Chowdhury, Łukasz Dylewski, Franz Essl, Josh A. Firth, Jérôme M. W. Gippet, Theresa Henke, Zuzanna Jagiełło, Ivan Jarić, Bernd Lenzner, Ana Novoa, Nadja Pernat, Petr Pyšek, Valerio Sbragaglia, Jessica H. Smith, Allan T. Souza, Reut Vardi, Shengyu Wang, Piotr Tryjanowski, Annette Menzel   +22 more
wiley   +1 more source

Update of feather picking in psittacine birds [PDF]

, 2016
PòsterJun
Universitat Autònoma de Barcelona. Facultat de Veterinària, Yerpes Ron, Marta   +1 more
core  

Airborne Environmental DNA Analysis as a Tool to Monitor Live Bird Trade

Environmental DNA, Volume 8, Issue 2, March/April 2026.
We explore airborne environmental DNA (eDNA) analysis as a novel tool to detect avian species and assess its potential for monitoring bird trade. We collected airborne samples in both enclosed and open market environments, accompanied by visual surveys, and processed them using DNA extraction and metabarcoding to identify avian taxa.
Haze W. Y. Chung, John L. Richards, John A. Allcock, David M. Baker, Shelby E. McIlroy, Caroline Dingle   +5 more
wiley   +1 more source

Isolamento de Salmonella spp. e Escherichia coli de psittaciformes: relevância em saúde pública

Arquivos do Instituto Biológico, 2016
RESUMO: O tráfico de animais selvagens consiste numa atividade ilegal exercida em diversas partes do mundo, e o Brasil, em função de sua grande extensão territorial e vasta biodiversidade, é um país bastante atingido por essa prática.
Elisângela de Souza Lopes, William Cardoso Maciel, Régis Siqueira de Castro Teixeira, Átilla Holanda de Albuquerque, Ruben Horn Vasconcelos, Débora Nishi Machado, Windleyanne Gonçalves Amorim Bezerra, Isabel Cristina Lima Santos   +7 more
doaj   +1 more source

Avian cerebellar floccular fossa size is not a proxy for flying ability in birds [PDF]

, 2013
Extinct animal behavior has often been inferred from qualitative assessments of relative brain region size in fossil endocranial casts. For instance, flight capability in pterosaurs and early birds has been inferred from the relative size of the ...
Abel, Richard L., Barrett, Paul M., Bourdon, Estelle, Dello Sterpaio, Patricia, Iwaniuk, Andrew N., Knoll, Monja A., Milner, Angela C., Nudds, Robert L., Walsh, Stig A.   +8 more
core   +6 more sources

Structural instability and concerted evolution in the mitochondrial control region of the grey‐headed lapwing Vanellus cinereus during range expansion

Journal of Avian Biology, Volume 2026, Issue 2, March 2026.
Mitochondrial genome duplications, particularly within the control region, can influence evolutionary trajectories and population structure, yet their prevalence and dynamics in birds remain insufficiently understood. The rey‐headed lapwing Vanellus cinereus has recently undergone a rapid range expansion in Japan, providing a unique opportunity to ...
Kazuya Nagai, Yusuke Takahashi, Hiroto Okabe   +2 more
wiley   +1 more source

Morphology, ecology and distribution of threatened species in Cacatuidae family [PDF]

, 2018
Neprestani negativni antropogeni utjecaj dovodi do ugroženosti vrsta i povećanog rizika od izumiranja istih. Ovaj rad donosi kratak pregled ugroženih vrsta iz porodice Cacatuidae, uključujući njihovu morfologiju, ekologiju, distribuciju te kategoriju i ...
Meglaj, Sarah
core   +2 more sources