Results 61 to 70 of about 9,156 (209)

PERICOS, CASANGAS, LOROS, GUACAMAYOS Y AFINES

open access: yesTecnociencia, 2001
Los sitácidos constituyen un grupo de aves que habitan alrededor del mundo en las regiones tropicales y subtropicales. La mayoría son de colores vistosos, su alimentación es variada, pero consumen principalmente frutos blandos o duros, anidan en huecos ...
Víctor H. Tejera N.   +1 more
doaj  

Is there a diel pattern to nectar secretion in the Red Bloodwood Corymbia gummifera? [PDF]

open access: yes, 2013
Nectar secretion was measured at 6-h intervals over a 24-h period in flowers of the Red Bloodwood, Corymbia gummifera (family Myrtaceae). Secretion varied among time periods and among trees. There was no clear diurnal or nocturnal pattern.
Goldingay, Ross L.
core  

Mosquito iDNA Reflects Fine Scale Composition of Tropical Fauna

open access: yesEnvironmental DNA, Volume 7, Issue 6, November–December 2025.
We used mosquito iDNA to investigate fine scale ecological patterns of birds and mammals in the tropical savanna woodlands of Kakadu National Park. Revealing that mammalian richness is influenced by site, while avian richness changes with season. While community composition is influenced by fire during the dry season and vegetation during the wet ...
Christine Chivas   +6 more
wiley   +1 more source

Psittacidae Illiger 1811

open access: yes, 2018
Published as part of Sánchez-Montes, Sokani, Colunga-Salas, Pablo, Álvarez-Castillo, Lucía, Guzmán-Cornejo, Carmen & Montiel-Parra, Griselda, 2018, Chewing lice (Insecta: Phthiraptera) associated with vertebrates in Mexico, pp.
Sánchez-Montes, Sokani   +4 more
openaire   +2 more sources

Rethinking the role of colour in avian fruit choices and foraging mechanisms

open access: yesFunctional Ecology, Volume 39, Issue 11, Page 3325-3338, November 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Mutualistic interactions between fleshy‐fruited plants and frugivorous animals that disperse seeds are important for the organization and regeneration of ecosystems worldwide.
João Vitor S. Messeder   +4 more
wiley   +1 more source

The collection and database of Birds of Angola hosted at IICT (Instituto de Investigação Científica Tropical), Lisboa, Portugal [PDF]

open access: yes, 2014
The bird collection of the Instituto de Investigação Cientítica Tropical (Lisbon, Portugal) holds 5598 preserved specimens (skins), mainly from Angola, Mozambique, Guinea-Bissau, São Tomé and Principe, and Cape Verde.
Bastos-Silveira, Cristiane   +9 more
core   +4 more sources

Climate Change in the Brazilian Cerrado: A Looming Threat to Terrestrial Biodiversity

open access: yesWIREs Climate Change, Volume 16, Issue 5, September/October 2025.
Due to climate change, the Brazilian Cerrado, a global biodiversity hotspot, is becoming hotter and drier, with longer and more intense dry seasons. This alters biodiversity by altering plant physiology, ecological interactions, and species distribution, creating more homogeneous and less diverse communities.
Gabriel S. Hofmann   +14 more
wiley   +1 more source

Novel plumage aberrations in Paraguayan non-Passerine Birds, and the definition of a new plumage aberration unique to Psittacidae

open access: yesBiodiversity and Natural History, 2017
Anomalous plumage colourations are reported for three species of non-passerine birds from Paraguay, Limpkin (Aramaus guarauna; Aramidae), Nanday Parakeet (Nandayus nenday; Psittacidae), and the Little Woodpecker (Veniliornis passerinus; Picidae).
Paul Smith, Sergio D. Ríos
doaj  

Aportes al conocimiento de la distribución, la cría y el peso de aves de las provincias de Mendoza y San Juan, República Argentina. Segunda parte (Aves: Falconidae, Scolopacidae, Thinocoridae, Columbidae, Psittacidae, Strigidae, Caprimulgidae, Apodidae, Furnariidae, Rhinocryptidae y Tyrannidae) [PDF]

open access: yes, 2001
En el presente trabajo se analiza un importante lote de aves en piel de estudio, coleccionado por William H. Partridge en las provincias de San Juan y Mendoza, República Argentina, durante los meses de noviembre y diciembre de 1963.
Bó, Nelly Alicia, Navas, Jorge R.
core   +1 more source

Are we choosing the right flagships? The bird species and traits Australians find most attractive [PDF]

open access: yes, 2018
Understanding what people like about birds can help target advocacy for bird conservation. However, testing preferences for characteristics of birds is methodologically challenging, with bias difficult to avoid.
Ainsworth, Gillian B.   +2 more
core   +2 more sources

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