Results 61 to 70 of about 500 (148)

Evidence of niche differentiation for two sympatric vulture species in the Southeastern United States

open access: yesMovement Ecology, 2019
Background As obligate scavengers utilizing similar habitats, interspecific competition undoubtedly occurs between resident black (Coragyps atratus) and turkey (Cathartes aura) vultures.
Amanda E. Holland   +6 more
doaj   +1 more source

Reproductive success of South American terns (Sterna hirundinacea) from Cardos Islands, Florianópolis, SC, Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2012
Sterna hirundinacea (Lesson, 1831) is a migratory seabird that breeds in the Pacific Coast (from Peru to Chile) and along the Atlantic coast of South America from Espírito Santo (Brazil) to Terra del Fuego (Argentina).
Hélio A.A. Fracasso, Joaquim O. Branco
doaj  

Geofagia y plasticofagia en Coragyps atratus

open access: diamond, 2023
Enrique Richard   +2 more
openalex   +2 more sources

Nutritional osteodystrophy in South American birds of prey [PDF]

open access: yesPesquisa Veterinária Brasileira
: Nutritional osteodystrophy is a metabolic bone disease characterized by increased bone resorption and replacement by fibrous connective tissue, resulting from a diet with excess phosphorus or deficient in calcium or vitamin D.
Luiz G.S. Oliveira   +7 more
doaj   +1 more source

Causal Effect Analysis of the Relationship Between Relative Bird Abundance and Deforestation in Mexico

open access: yesBirds
In this study, we used a causal analysis approach to assess the impact of deforestation on bird abundance in Mexico. Based on records in the eBird and GBIF databases, ten species were selected in 807 grids on the mainland.
Claudia Itzel Beteta-Hernández   +5 more
doaj   +1 more source

Presencia y abundancia de aves que se reproducen en islas de la bahía de Mazatlán, Sinaloa, México

open access: yesHuitzil, 2017
Registramos la presencia y abundancia de aves, así como el hábitat y temporalidad de la reproducción de especies en las islas Pájaros, Venados, Lobos, Hermano Norte y Hermano Sur, ubicadas en la bahía de Mazatlán.
Alberto Piña-Ortiz   +3 more
doaj   +1 more source

Diversity of ticks in the wildlife screening center of São Paulo city, Brazil

open access: yesCiência Rural
: The Wildlife Screening Center (CETAS) of the Tietê Ecological Park (PET), situated at the municipality of São Paulo, receives, treats and rehabilitates wild animals that have been dislodged from their natural environment due to different reasons.
Thiago Fernandes Martins   +8 more
doaj   +1 more source

Caracterización Proteica del Suero del Ave Coragyps Atratus (Zamuro de Cabeza Negra) y Algunos Estudios Inmunoserologicos

open access: yesRevista Científica, 2009
El zamuro sobrevive al constante ataque infeccioso dado por su alimentación. Determinaciones biológicas en esta especie son escasas. Se caracterizó el contenido proteico sérico y se realizó el serodiagnóstico para determinar anticuerpos contra agentes ...
Diana C. Ocando Ocando   +3 more
doaj  

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