Results 41 to 50 of about 1,902 (182)
Seed dispersal by macaws shapes the landscape of an Amazonian ecosystem [PDF]
, 2017 Seed dispersal is one of the most studied plant–animal mutualisms. It has been proposed that the dispersal of many large-seeded plants from Neotropical forests was primarily conducted by extinct megafauna, and currently by livestock.
Baños-Villalba, Adrián +5 more
core +2 more sources
Técnica de sexagem por laparoscopia em arara-canindé (Ara ararauna)
Brazilian Journal of Animal and Environmental Research, 2022 A determinação do sexo em aves monomórficas é fundamental para o sucesso reprodutivo de espécies silvestres mantidas em cativeiro. A citogenética, a análise do DNA e a laparoscopia com o uso de endoscópios rígidos ou otoscópios são os métodos mais conhecidos para sexagem de aves.
Antônio Araújo Leite +2 more
openaire +1 more source
Ciência Rural, 2008 O Brasil possui um considerável número de espécies de psitacídeos catalogados, perfazendo cerca de 80 espécies, sendo que as Araras canindé (Ara ararauna), uma das maiores representantes dessa ordem, podem ser encontradas em florestas nas diversas ...
Stella de Faria Valle +6 more
doaj +1 more source
Valores de referência para testes diagnósticos oftálmicos em arara canindé (Ara ararauna) e papagaio verdadeiro (Amazona aestiva) [PDF]
, 2015 Tese (doutorado)—Universidade de Brasília, Faculdade de Agronomia e Veterinária, Programa de Pós-Graduação em Saúde Animal, 2015.Objetivou-se determinar os valores normais para testes oftálmicos diagnósticos selecionados para Arara Canindé e Papagaio ...
Falcão, Mário Sérgio Almeida
core +1 more source
Occupancy and abundance of large macaws in the Beni savannahs, Bolivia [PDF]
, 2014 Fil: Berkunsky, Igor. Instituto Multidisciplinario sobre Ecosistemas y Desarrollo Sustentable. Universidad Nacional del Centro de la Provincia de Buenos Aires. Tandil; ArgentinaFil: Cepeda, Rosana E..
Aramburú, Rosana Mariel +9 more
core +1 more source
Reproductive Parameters in the Critically Endangered Blue-Throated Macaw: Limits to the Recovery of a Parrot under Intensive Management [PDF]
, 2014 Rediscovered in the wild twenty years ago, the breeding biology of wild Blue-throated Macaws remains largely unexplored, yet is essential to its effective conservation and recovery.
Aramburu, Rosana Mariel +6 more
core +3 more sources
Parasitism by Syngamus trachea in Blue-and-Yellow Macaw (Ara ararauna) [PDF]
Acta Scientiae Veterinariae, 2018 Background: Ara ararauna is widely distributed in South America and frequently affected by anthropogenic activities and environmental pressures such as illegal bird trafficking, and habitat loss. Also some endoparasites can threaten their health, and cause their death, or prevent the reintroduction of the animal to its natural environment.
de Paula, Jean Henrique Nunes +5 more
openaire +2 more sources
Isolation of Salmonella Typhimurium from Dead Blue and Gold Macaws (Ara ararauna)
Avian Diseases, 2009 Two blue and gold macaw (Ara ararauna) chicks died of fatal salmonellosis in Buenos Aires Province, Argentina. The birds were histopathologically and microbiologically examined. Salmonella enterica subspecies enterica serovar Typhimurium was isolated from the liver, spleen, heart, lung, kidney, and intestine of both birds.
Vigo, Germán Blás +8 more
openaire +3 more sources
Body size and climate as predictors of plumage colouration and sexual dichromatism in parrots
Journal of Evolutionary Biology, Volume 33, Issue 11, Page 1543-1557, November 2020., 2020 Lager parrots have more elaborated colours and lower levels of sexual dichromatism, whilst smaller parrots are less colourful but show higher levels of sexual dichromatism. Resource competition, mutual mate choice, social selection, predation risk, sexual selection on males and extra‐pair paternity are the possible processes that led to the varying ...
Luisana Carballo +3 more
wiley +1 more source