Results 31 to 40 of about 1,461 (199)

Feather mites (Acari: Astigmata) of captive Psittaciformes in Brazil

Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Feather samples were obtained from the following Psittaciformes birds: Amazona amazonica, Amazona aestiva, Aratinga jandaya, Brotogeris spp., Ara ararauna and Ara chloropterus (total of 37 individuals).
D.M. Pereira, F.A. Hernandes, A.C.G. Santos, R.M.S. Nogueira   +3 more
doaj   +1 more source

Ecological traits modulate bird species responses to forest fragmentation in an Amazonian anthropogenic archipelago [PDF]

, 2018
Aim: We assessed patterns of avian species loss and the role of morpho-ecological traits in explaining species vulnerability to forest fragmentation in an anthropogenic island system.
Aho, Almeida, Almeida-Neto, Almeida-Neto, Alvares, Anjos, Banks-Leite, Benchimol, Blake, Bolger, Bregman, Brown, Bueno, Burchell, Burnham, Dardanelli, Devictor, Ewers, Fahrig, Fahrig, Feeley, Ferreira, Fiske, Freckleton, Gage, Gaston, Gavish, Haddad, Hall, Hamer, Hartley, Henle, Hsieh, Jetz, Jones, Kattan, Keinath, Kennedy, Laurance, Laurance, Lees, Lees, Lindenmayer, Lövei, Mace, MacKenzie, Mackenzie, Matthews, Matthews, Matthews, Matthews, Mendenhall, Meyer, Moore, Moura, Newbold, Paradis, Peres, Powell, Powell, Quinn, R Core Team, Rabinowitz, Rosenzweig, Santos, Scheiner, Sekercioglu, Si, Si, Si, Silva, Sodhi, Soga, Stotz, Stouffer, Stouffer, Stouffer, Stratford, Stratford, Thiollay, Thornton, Triantis, Ulrich, Van Houtan, Wang, Wang, Watling, Webb, Welsh, Willie, Wilman, Wolfe, Yaacobi, Yong, Yu   +94 more
core   +2 more sources

Abiotic drivers of co‐occurrence and diversity patterns of Calopterygidae species in Amazonian protected freshwaters

Ecological Entomology, Volume 51, Issue 2, Page 235-249, April 2026.
Species co‐occurrences rely on their ability to explore similar or distinct available resources, and possible niche overlap can prevent their presence and establishment in a given site Damselflies of the Calopterygidae family demonstrated negative co‐occurrences in streams inside and outside PAs, highlighting that their ecological similarity is ...
Joás Silva Brito, Everton Cruz Silva, Gabriel Martins Cruz, Victor Rennan Santos Ferreira, Rafael Costa Bastos, Josinete Sampaio Monteles, Cristian Camilo Mendoza‐Penagos, Fernando Geraldo Carvalho, José Max Barbosa Oliveira‐Junior, Karina Dias‐Silva, Thaisa Sala Michelan, Luciano Fogaça de Assis Montag, Lilian Casatti, Leandro Juen   +13 more
wiley   +1 more source

How much sampling is enough? Four decades of understorey bird mist‐netting across Amazonia define the minimum effort to uncover species assemblage structure

Ibis, Volume 168, Issue 2, Page 571-587, April 2026.
Mist‐net sampling comprises a key methodological component of assemblage‐wide avifaunal studies, particularly in the understorey of closed‐canopy tropical forests. To investigate mist‐net bird captures and species assemblage structure, we compiled data from 312 sites across the Pan‐Amazon.
Pilar L. Maia‐Braga, Anderson S. Bueno, Richard G. Davies, Marina F. A. Maximiano, Torbjørn Haugaasen, Marina Anciães, John G. Blake, Bette A. Loiselle, Sergio H. Borges, Juliana Menger, Sidnei Dantas, Ramiro D. Melinski, Fernando H. T. de Abreu, Roberta L. Boss, Carlos A. Peres   +14 more
wiley   +1 more source

Pharmacokinetics of amantadine after oral administration of single and multiple doses to orange-winged Amazon parrots (Amazona amazonica)

American Journal of Veterinary Research, 2020
Abstract OBJECTIVE To determine the pharmacokinetics of amantadine after oral administration of single and multiple doses to orange-winged Amazon parrots (Amazona amazonica). ANIMALS 12 adult orange-winged Amazon parrots (6 males and 6 females). PROCEDURES A single dose of amantadine was orally administered to 6 birds at 5 mg/kg (n = 2), 10 mg/kg (
Kyra J, Berg, David, Sanchez-Migallon Guzman, Heather K, Knych, Tracy L, Drazenovich, Joanne R, Paul-Murphy   +4 more
openaire   +2 more sources

Patterns of understorey bird diversity across Amazonian forests: survey effort and range maps predict local species richness

Ecography, Volume 2026, Issue 3, March 2026.
Species diversity typically increases from higher to lower latitudes, but the regional‐scale variation along this geographic gradient remains unclear. It has been suggested that species diversity throughout Amazonia generally increases westward toward the Andes, but this pattern and its environmental determinants require further investigation for most ...
Pilar L. Maia‐ Braga, Anderson S. Bueno, Marina F. A. Maximiano, Torbjørn Haugaasen, Marina Anciães, John G. Blake, Bette A. Loiselle, Sergio H. Borges, Juliana Menger, Sidnei Dantas, Ramiro D. Melinski, Affonso H. N. Souza, Fernando H. T. de Abreu, Roberta L. Boss, Carlos A. Peres   +14 more
wiley   +1 more source

Native rodent species are unlikely sources of infection for Leishmania (Viannia) braziliensis along the Transoceanic Highway in Madre de Dios, Peru. [PDF]

, 2014
An estimated 2.3 million disability-adjusted life years are lost globally from leishmaniasis. In Peru's Amazon region, the department of Madre de Dios (MDD) rises above the rest of the country in terms of the annual incidence rates of human leishmaniasis.
Conrad, Patricia A, De Los Santos, Maxy, Ghersi, Bruno M, Lescano, Andres G, Mazet, Jonna AK, Montgomery, Joel M, Razuri, Hugo, Shender, Lisa A   +7 more
core   +4 more sources

Searching for food in a concrete jungle: feeding ecology of a Psittacine assemblage (Aves, Psittacidae) in a major Amazonian city [PDF]

, 2023
The efficient use of food resources is a precondition for wild species´ survival in urban environments. The feeding ecology of animals in tropical cities, however, remains poorly investigated.
Barnett, A., Barnett, A., Borges, S., Borges, S., Scudeller, V., Scudeller, V., Soares, C., Soares, C.   +7 more
core   +1 more source

Anti‐Predation and Size‐Dependent Gas Exchange Functions of Amazonian Architect Cicada Towers

Biotropica, Volume 58, Issue 2, March 2026.
Clay towers built by cicada nymphs before metamorphosis are poorly understood. We experimentally show that towers of the Amazonian cicada Guyalna chlorogena reduce predation risk and exhibit size‐dependent growth responses to gas exchange obstruction, supporting their interpretation as adaptive extended phenotypes.
Marina Mega, Izadora N. Gonzalez, Maria Luiza Busato, Sara S. Feitosa, Rodrigo F. Fadini, Pedro A. C. L. Pequeno   +5 more
wiley   +1 more source

Biogeography, ecology and conservation in the Neopangea: new challenges in Brazil [PDF]

, 2017
En aquest treball es posen de manifest els impactes potencials de la introducció d’espècies foranes d’aus i mamífers utilitzant alguns exemples de l’estat de São Paulo (sud-est del Brasil).
Guix, Juan Carlos
core   +1 more source