Results 71 to 80 of about 3,983 (210)
Análisis morfométrico del surco nasal en aves [PDF]
, 2010 Fil: Ibáñez, Lucía Mariel. Campus Universitario Florencio Varela, División Zoología Vertebrados, Sección Ornitología; ArgentinaFil: Tambussi, Claudia Patricia.
Acosta Hospitaleche, Carolina +2 more
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Environmental DNA, Volume 7, Issue 2, March/April 2025.This study employed eDNA to characterize marine vertebrate biodiversity at Tristan da Cunha, the world's most remote archipelago. The multi‐assay approach successfully detected 51 Operational Taxonomic Units (OTUs) encompassing 24 families, 32 genera, and 13 species, resolving the islands characteristic diversity profile, and also identifying rare and ...
Megan M. A. Elsmore +7 more
wiley +1 more source
Pesquisa Veterinária Brasileira, 2013 The occurrence of infections and the disease induced by Contracaecum plagiaticium and Contracaecum pelagicum in Magellanic penguins, Spheniscus magellanicus Foster.
Sabrina D.E. Campos +5 more
doaj
A case of partial leucism in the American Barn Owl (Tyto furcata) (Temminck, 1827), from Buenos Aires province, Argentina [PDF]
, 2014 The diverse colorations of a birds’ plumage are due to either structural colors or pigments that are synthesized in specialized cells or incorporated through the diet.
Chiale, Maria Cecilia +1 more
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Acoustic cues to development of African Penguins (Spheniscus demersus) begging calls
Ibis, Volume 167, Issue 1, Page 286-294, January 2025.Avian begging calls mediate parent–offspring conflict and direct parental care to genetically related progeny. We found that the fundamental frequency of begging calls of African Penguins Spheniscus demersus decreases as the penguins age and gain mass, before reaching a lower plateau when the chick reaches about 1 kg.
Anna Zanoli +8 more
wiley +1 more source
BMC Evolutionary Biology, 2010 Background Nutrition and predation have been considered two primary agents of selection important in the evolution of avian life history traits. The relative importance of these natural selective forces in the evolution of avian embryonic developmental ...
Vos Rutger A +3 more
doaj +1 more source
Guía y modelo para la sistematización de la bibliografía ornitológica argentina y neotropical. II [PDF]
, 1983 Guide and Pattern for the Classification ot Argentine and Neotropical Otnithological Bibliography. In this paper, 79 works related to Ornithology, which were published in Neotropica (Notas Zoológicas Americanas, Sociedad Zoológica del Plata, La Plata ...
Daciuk, Juan, Heber, Eduardo A.
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To slide or stride: when should Adélie penguins (Pygoscelis adeliae) toboggan? [PDF]
, 1991 We noted whether Adélie penguins (Pygoscelis adeliae), when travelling over snow, walked or tobogganed according to gradient, snow friction, or snow penetrability. Both walking and tobogganing penguins reduced stride length and stride frequency, and thus
Adelung, Dieter +4 more
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The Anatomical Record, Volume 307, Issue 12, Page 3801-3829, December 2024.Abstract Aquatic birds represent diverse ecologies and locomotion types. Some became flightless or lost the ability for effective terrestrial locomotion, yet, certain species excel in water, on land, and in air, despite differing physical characteristics associated with each medium.
Martin Segesdi +3 more
wiley +1 more source
Pesquisa Veterinária Brasileira, 2014 : Magellanic penguins (Spheniscus magellanicus) usually arrive in poor body conditions at Brazilian beaches during the winter. Hematology provides valuable information about clinical and immunity status of the animals.
Angela M. Coraiola +4 more
doaj +1 more source