Results 61 to 70 of about 7,866 (158)

Trophic ecology of Athene cunicularia and Tyto alba in Curru-Mahuida hill, Monte- Espinal ecotone, La Pampa, Argentina [PDF]

open access: yes, 2012
Se analizó la dieta de Athene cunicularia y Tyto alba en un área de ecotono entre elMonte y el Espinal en la provincia de La Pampa, Argentina. Se identificaron 747 presas de Athenecunicularia y 563 de Tyto alba, pertenecientes a las clases Mammalia ...
Costan, Andrea Silvina   +3 more
core   +1 more source

Assessing the Corn Belt as an anthropogenic barrier to migrating landbirds in the United States

open access: yesConservation Biology, Volume 39, Issue 5, October 2025.
Abstract Migrating landbirds adjust their flight and stopover behaviors to efficiently cross inhospitable geographies, such as the Gulf of Mexico and the Sahara Desert. In addition to these natural barriers, birds may increasingly encounter anthropogenic barriers created by large‐scale changes in land use. One such barrier could be the Corn Belt in the
Fengyi Guo   +7 more
wiley   +1 more source

The greater rhea (Rhea americana) and guaycurúes in the 18th century: an historical- ethnobiological approach in the Argentinean Gran Chaco [PDF]

open access: yes, 2016
El ñandú (Rhea americana) es un ave endémica del territorio sudamericano. Su aparición en los documentos históricos es extensa y muestra que se encontraba en abundancia en la antigüedad. Por ello, distintas sociedades le han atribuido gran importancia en
Medrano, María Celeste   +1 more
core  

Fishermen´s perceptions of interactions between seabirds and artisanal fisheries in the Chonos archipelago, Chilean Patagonia [PDF]

open access: yes, 2013
Interactions between seabirds and commercial fishing activities have been well documented but little information is available regarding the impacts of more traditional fishing practices on seabird populations.
Arriagada, Aldo M.   +4 more
core   +1 more source

Análisis morfométrico del surco nasal en aves [PDF]

open access: yes, 2010
Fil: Ibáñez, Lucía Mariel. Campus Universitario Florencio Varela, División Zoología Vertebrados, Sección Ornitología; ArgentinaFil: Tambussi, Claudia Patricia.
Acosta Hospitaleche, Carolina   +2 more
core  

The mediating ἴυγξ: ornithology, love magic, mythology, and Chaldean and neoplatonic theology [PDF]

open access: yes, 2015
En griego ἴυγξ designó originariamente un pájaro: el torcecuello. Los rasgos fi sonómicos y el comportamiento del ave debieron de propiciar la creencia de que tenía un poder mágico y de que, atada en cruz a una rueda por una hechicera, habría de atraer a
Fernández Fernández, Álvaro
core   +2 more sources

Changes in land cover drove the recent range expansion of a tropical farmland bird

open access: yesOikos, Volume 2025, Issue 9, September 2025.
Several bird species associated with agricultural landscapes in the Palearctic and in the Nearctic (i.e. farmland birds) have been experiencing severe population declines since the 1970s, mainly due to habitat loss driven by agricultural intensification.
Luana Jéssica Ferreira   +4 more
wiley   +1 more source

Cigüeñas y grullas: un intento de comprender una etología propia mediante el concepto de la filopatría

open access: yesANIAV
Este artículo analiza la investigación artística desarrollada en el proyecto Algunos esfuerzos por entender el concepto de la filopatría (o aquella cualidad según la cual algunos animales volvemos continuamente nuestro lugar de origen).
Juan José del Junco González
doaj   +1 more source

The relationship between the feather tuft of the uropygial gland and terrestrial/aquatic birds [PDF]

open access: yes, 2013
The bird´s uropygial gland has a papilla in its caudal end and it can also show a feather tuft. These feathers may have a raquis or not. The purpose of our study was to compare the number, dimensions and types of the tuft´s feathers in aquatic and ...
Chiale, Maria Cecilia, Montalti, Diego
core   +1 more source

Climate Change in the Brazilian Cerrado: A Looming Threat to Terrestrial Biodiversity

open access: yesWIREs Climate Change, Volume 16, Issue 5, September/October 2025.
Due to climate change, the Brazilian Cerrado, a global biodiversity hotspot, is becoming hotter and drier, with longer and more intense dry seasons. This alters biodiversity by altering plant physiology, ecological interactions, and species distribution, creating more homogeneous and less diverse communities.
Gabriel S. Hofmann   +14 more
wiley   +1 more source

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