Results 31 to 40 of about 1,082 (127)

Fifty-second supplement to the American Ornithologists\u27 Union Check-list of North American Birds [PDF]

open access: yes, 2011
Volume ...
Banks, Richard C.   +11 more
core  

Birds, Ilha Grande, state of Rio de Janeiro, Southeastern Brazil [PDF]

open access: yes, 2009
We provide a list of bird species from our primary surveys and secondary data for an island (Ilha Grande) insoutheastern Brazil. The information derives mainly from primary data collected since 1995, particularly in the oceanicside of the island.
Alves, M. A. S., Vecchi, M. B.
core  

Aves da fazenda Nhumirim, Pantanal da Nhecolândia, MS. [PDF]

open access: yes, 2019
Neste trabalho é apresentada uma caracterização da comunidade de aves ocorrentes na Estação Experimental da fazenda Nhumirim, contribuindo com o desenvolvimento da Ornitologia na região.bitstream/CPAP/55966/1/DOC81.pdfFormato ...
NUNES, A. P.   +2 more
core  

Head Movement and Vision in Underwater-Feeding Birds of Stream, Lake, and Seashore [PDF]

open access: yes, 1999
Studies head movement and vision in underwater-feeding birds. Review of relevant literature on the physiological and behavioral aspects of vision; Role of vertical head movement as an aid in the acquisition of visual ...
Casperson, Lee W.
core   +2 more sources

La avifauna de la Posada y Reserva Puerto Bemberg, Misiones, Argentina [PDF]

open access: yes, 2012
La Posada Puerto Bemberg se sitúa a orillas del río Paraná casi en el extremo noroeste de la provincia de Misiones (25˚55’S, 54˚37’O), en el sudoeste del departamento Iguazú en la localidad de Puerto Libertad (antiguamente Puerto Bemberg) (Fig. 1). Es un
Areta, Juan Ignacio   +2 more
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La colección de huevos "Pablo Girard" del Museo de La Plata [PDF]

open access: yes, 2014
Se presenta información sobre la colección de huevos "Pablo Girard" que forma parte de la Colección Ornitológica del Museo de La Plata (División Zoología de Vertebrados, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata).
Bogado, Natalia   +3 more
core   +1 more source

Biodiversity of the "Pre Delta", National Park [PDF]

open access: yes, 2004
Biodiversity can be understood by the means of two terms: richness and evenness. We study the biological richness of Pre Delta National Park (Entre Ríos, Argentina) on its floristic and ornithological, mastozoological and amphibian fauna.
Aceñolaza, Pablo Gilberto   +5 more
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Birds of Sierra de Vallejo, Nayarit, Mexico [PDF]

open access: yes, 2014
Sierra de Vallejo, is considered a priority region for conservation, and is strongly affected by anthropogenic pressures. The inventory of birds are refers to studies in near areas.
Figueroa-Esquivel, E.M.   +1 more
core  

Cambios en la abundancia de aves en un fragmento de bosque neotropical durante un período de 25 años: una revisión [PDF]

open access: yes
Few data are available to evaluate the long term effects of habitat isolation on species richness or abundances in the tropics. Barro Colorado Island (BCI), Panama, has been studied for more than 80 years since its isolation from surrounding lowland ...
Robinson, W. D.
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Biodiversidade do Pantanal : resposta ao regime sazonal de enchente e à degradação ambiental [PDF]

open access: yes, 2008
Inundação sazonal é o fenômeno ecológico mais importante do Pantanal. A cada ano, grandes regiões do bioma mudam de hábitats aquáticos para terrestres e vice-versa. As cheias ocupam cerca de 80% do Pantanal. Em contraste, durante a estiagem, grande parte
Alho, Cleber José Rodrigues
core   +1 more source

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