Results 11 to 20 of about 491 (170)

Ecologia de aves, armas biológicas? O Projeto Ecológico de Belém e uma controvérsia histórica sobre a presença do Instituto Smithsonian e da Fundação Rockefeller na Amazônia (1963-1971)

open access: yesTopoi (Brazil)
RESUMO Este artigo investiga a história do Projeto Ecológico de Belém (1963-1971), coordenado por Philip Humphrey, do Instituto Smithsonian, e desenvolvido na Amazônia em parceria com o Laboratório de Vírus da Fundação Rockefeller. O objetivo é explorar a controvérsia histórica de que pesquisas sobre ecologia de aves teriam ocultado testes das forças ...
exaly   +3 more sources

Estación Biológica Quebrada Blanco

open access: yesRevista Peruana de Biología, 2021
La Estación Biológica Quebrada Blanco (EBQB), en el nororiente de la Amazonía peruana, es un lugar donde se ha venido realizando investigación científica desde 1984.
Eckhard W. Heymann   +1 more
doaj   +1 more source

Avian community responses to the establisment of small garden allotments within a Mediterranean habitat mosaic

open access: yesAnimal Biodiversity and Conservation, 2010
Estudios previos de ecología enfocados a los efectos que tienen las alteraciones de los hábitats a pequeña escala han hallado efectos positivos, nulos y negativos sobre la biodiversidad.
J. Quesada, I. MacGregor–Fors
doaj   +3 more sources

Ecological drivers of breeding periodicity in four forest neotropical eagles

open access: yesScientific Reports, 2023
We explore the potential factors that affect clutch initiation in four Neotropical large raptors (Harpy eagle—HE, Crested eagle—CE, Ornate hawk-eagle—OHE, and Black hawk-eagle—BHE) by analyzing 414 clutch events mostly obtained from captive individuals ...
Marcel Henrique Blank   +3 more
doaj   +1 more source

PARTIÇÃO DE RECURSOS ALIMENTARES ENTRE AVES INSETÍVORAS DE MATA RIPARIA NA PORÇÃO NORTE DO PANTANAL MATO-GROSSENSE

open access: yesCadernos Cajuína, 2022
O conhecimento sobre ecologia trófica e particionamento de recursos alimentares por aves da região do Pantanal é pouco explorado nos estudos científicos.
Bruno Ramos Brum
doaj   +1 more source

Challenges and perspectives of movement ecology research in Brazil

open access: yes, 2023
Challenges and perspectives of movement ecology research in Brazil. The recent progress in movement ecology research was driven by technological advances that facilitated the quantification and analysis of fine scale movement.
Bernardo Brandão S. Niebuhr   +23 more
core   +1 more source

DIVERSIDADE DE PIPRÍDEOS (AVES: PIPRIDAE) AMAZÔNICOS: SELEÇÃO SEXUAL, ECOLOGIA E EVOLUÇÃO [PDF]

open access: yesOecologia Brasiliensis, 2009
We present a review of recent studies about the evolutionary history of birds of the family Pipridae, commonly known as manakins. Birds of this family usually face strong sexual selection, due to their polygynic lekking breeding system. We focused on the effects of sexual selection on geographical distribution patterns, habitat utilization and ...
openaire   +1 more source

Ecologia comportamental de Tyrannidae (aves: passeriformes): mudanças nos padrões de forrageamento em resposta a variações ambientais e sazonais em ambiente urbano [PDF]

open access: yes, 2021
The next few decades, more than half of the world's population will be concentrated in urban environments and the impact of urbanization on native species is certainly not small. In this context, investigate the behavioral adjustments of animals in response to urban pressures, can provide essential subsidies for the biodiversity conservation.
openaire   +2 more sources

Neotropical bird communities in a human-modified landscape recently affected by two major hurricanes [PDF]

open access: yes, 2021
Agriculture affects biodiversity on a global scale and especially in the Neotropics, leading to land-management challenges in which native wildlife is forced to interact with high-contrast landscape matrices.
MacGregor-Fors, Ian   +3 more
core   +1 more source

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