Results 51 to 60 of about 2,637 (171)

Non‐Passerine Birds in Zoos: A Global Approach on Distribution Patterns of Threatened Birds in Zoological Institutions 动物园中非雀形目鸟类:全球动物机构中受威胁鸟类的分布模式研究

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 600-615, December 2025.
Only 1541 (34.2%) of 4503 recognized non‐passerine bird species are held in ZIMS institutions worldwide. Approximately ~83% of the species kept globally are classified as non‐threatened and ~16% as threatened. To improve the conservation of threatened birds, a shift toward keeping threatened species should be considered within ex situ management ...
Anna Wahle   +6 more
wiley   +1 more source

Maintenance of a scavenger ancient food web in insular remote areas

open access: yesPerspectives in Ecology and Conservation
Vultures are among the most endangered bird species, and changes in their feeding habits due to human activities pose a significant threat to their survival. We studied aspects of the trophic ecology of Andean Condors (Vultur gryphus) in Tierra del Fuego,
Ulises Balza   +4 more
doaj   +1 more source

Factors influencing the selection of communal roost sites by the Black Vulture Coragyps atratus (Aves: Cathartidae) in an urban area in Central Amazon

open access: yesZoologia (Curitiba), 2013
Increasing populations of the Black Vulture, Coragyps atratus (Bechstein, 1793) and the capacity this bird has to live near humans has resulted in vulture-human conflicts.
Weber G. Novaes, Renato Cintra
doaj   +1 more source

A case of partial leucism in the American Barn Owl (Tyto furcata) (Temminck, 1827), from Buenos Aires province, Argentina [PDF]

open access: yes, 2014
The diverse colorations of a birds’ plumage are due to either structural colors or pigments that are synthesized in specialized cells or incorporated through the diet.
Chiale, Maria Cecilia   +1 more
core  

Comparison of eye morphology and retinal topography in two species of new world vultures (Aves: Cathartidae) [PDF]

open access: yesThe Anatomical Record, 2013
ABSTRACTVultures are highly reliant on their sensory systems for the rapid detection and localization of carrion before other scavengers can exploit the resource. In this study, we compared eye morphology and retinal topography in two species of New World vultures (Cathartidae), turkey vultures (Cathartes aura), with a highly developed olfactory sense,
Lisney, Thomas J.   +5 more
openaire   +3 more sources

Ecological and Morphological Traits Determine Community‐Wide Responses of Birds to Climate Change in a Tropical Dry Forest

open access: yesJournal of Biogeography, Volume 52, Issue 11, November 2025.
ABSTRACT Aim We evaluate the potential consequences of climate change on the Caatinga Dry Forest, asking how the future climate would affect its avifauna under three different carbon emission scenarios. First, we evaluate potential climate‐induced distributional changes.
Victor Leandro‐Silva   +2 more
wiley   +1 more source

Carrapatos do gênero amblyomma (acari: ixodidae) e suas relações com os hospedeiros em área endêmica para febre maculosa no Estado de São Paulo Ticks of genus Amblyomma (Acari: Ixodidae) and their relationship with hosts in endemic area for spotted fever in the state of São Paulo

open access: yesRevista Brasileira de Parasitologia Veterinária, 2008
Foram avaliadas 7 espécies da mastofauna e 36 da avifauna quanto à prevalência e intensidade de infestação por carrapatos na ESALQ/USP, no Município de Piracicaba, SP.
Carlos Alberto Perez   +10 more
doaj   +1 more source

Primer registro documentado del Esparvero variado (Accipiter bicolor) para la provincia de Buenos Aires, Argentina [PDF]

open access: yes, 2014
En la porción meridional de América del Sur el Esparvero Variado (Accipiter bicolor) habita bosques subtropicales y templados, además de regiones de vegetación abierta con bosques en galería y en isletas (Bierregaard 1994).
Cabanne, Gustavo Sebastián
core  

Molecular sex identification in birds of prey [PDF]

open access: yes, 2015
[Resumen] La correcta identificación del sexo de los animales es de vital importancia para la gestión y conservación de la fauna. En el caso de las aves, el sexado a partir de rasgos fenotípicos resulta complicado o imposible en numerosas ocasiones ...
Caeiro Aguado, Manuel
core  

Digenean parasites of Ciconiiform birds from Argentina Digéneos parásitos de aves Ciconiiformes de Argentina

open access: yesRevista Mexicana de Biodiversidad, 2011
The helminthological survey of 13 specimens of 5 ciconiiform species revealed the presence of 10 species of intestinal digeneans: Sphincterodiplostomum musculosum Dubois, 1936 in Tigrisoma lineatum and Ardea alba; Tylodelphys elongata (Lutz, 1928) in T ...
Fabiana B. Drago, Lía I. Lunaschi
doaj  

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