Results 61 to 70 of about 3,691 (181)

Diversity and dominance in bird assemblages across habitats in the Ñeembucú wetlands complex

open access: yesBiotropica, Volume 56, Issue 5, September 2024.
We analyzed how the composition of neotropical bird assemblages vary among habitats (riparian forests, natural grasslands, savannas, and anthropized sites) in the Ñeembucú Wetlands Complex, the largest wetland system in Paraguay. We found a high bird richness (209 species) that contrasted with a pattern of dominance by a small set of 16 species that ...
Fátima Ortiz   +7 more
wiley   +1 more source

Sporophila frontalis

open access: yes, 1952
Published as part of Schauensee, Rodolphe Meyer De, 1952, A Review Of The Genus Sporophila, Academy of Natural Sciences on pages 161-162, DOI: 10.5281/zenodo ...
openaire   +2 more sources

Evaluación del estado taxonómico del semillero de Tumaco Sporophila insulata (Fringillidae: emberizinae) utilizando métodos morfológicos y genéticos

open access: yesActa Biológica Colombiana, 2004
El Semillero de Tumaco, Sporophila insulata, es un taxón endémico del suroccidente de Colombia, se encuentra catalogado en estado crítico de extinción, pero así mismo su validez taxonómica es incierta.
Juan Carlos de las Casas Serrano   +2 more
doaj  

Registros inusuales de aves en la hoya de Loja, Andes sur del Ecuador

open access: yesACI Avances en Ciencias e Ingenierías, 2016
Presentamos datos actualizados sobre la distribución de 20 especies de aves del Ecuador, 16 de estas registradas por primera ocasión dentro de la hoya de Loja, valle inter-Andino del sur del país: Podilymbus podiceps, Phalacrocorax brasilianus, Butorides
Leonardo Ordóñez-Delgado   +3 more
doaj   +1 more source

Distinct bird communities in forests and fruit farms of Caatinga landscapes

open access: yesIbis, Volume 166, Issue 3, Page 1081-1091, July 2024.
Agricultural expansion and intensification drive changes in bird assemblages and contribute to the homogenization of communities. By working across the semi‐arid biome of the Caatinga in northeastern Brazil, this study is the first to compare the bird communities found in intensively managed fruit farms with those in remnant Caatinga forest patches. We
Natalia B. Zielonka   +8 more
wiley   +1 more source

Sporophila funerea

open access: yes
Sporophila funerea (Sclater, 1860) Distribution Armero-Guayabal, Casabianca, Coyaima, Falan, Fresno, Honda, Ibagué, Icononzo, Lerida, Libano, Mariquita, Plandas, Prado Notes (v; co CZUT OR 1043; ph ML 121462621) ICN. This species is observed most commonly below 1200 m a. s. l. It is seen more often than the congener S.
Parra-Hernández, Ronald M   +1 more
openaire   +1 more source

Notas sobre la biología de algunos Passeriformes del Noroeste Argentino, I

open access: yesActa Zoológica Lilloana, 1987
Observaciones nidológicas sobre algunas aves tiraninas, parulinas y emberizinas: Se describen nidos y huevos de Stigmatura budytoides, Parula pitiayumi y Sporophila caerulescens.
Estela A. Alabarce
doaj  

Quantitative genetic analyses provide parameters for selection and conservation of captive Great-billed Seed-finches (Sporophila maximiliani).

open access: yesPLoS ONE, 2020
The Great-billed Seed-finch (Sporophila maximiliani) is an endangered South American bird that has suffered from trafficking and the destruction of its natural habitat.
Mário L Santana
doaj   +1 more source

Evolution of avian heat tolerance: The role of atmospheric humidity

open access: yesEcology, Volume 105, Issue 5, May 2024.
Abstract The role of atmospheric humidity in the evolution of endotherms' thermoregulatory performance remains largely unexplored, despite the fact that elevated humidity is known to impede evaporative cooling capacity. Using a phylogenetically informed comparative framework, we tested the hypothesis that pronounced hyperthermia tolerance among birds ...
Marc T. Freeman   +5 more
wiley   +1 more source

Sporophila ruficollis

open access: yes, 1883
16. Cotile ruficollis (Vieill.). —Abundant at Concepcion through the summer, arriving from the north early in August. It is said to nest in holes in banks. and I once dug out several deserted Swallow’s nests supposed to belong to this bird, though none were seen in the neighborhood.
openaire   +1 more source

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