Results 11 to 20 of about 16,468 (173)

Scarlet Macaw, Ara macao, (Psittaciformes: Psittacidae) diet in Central Pacific Costa Rica

Revista de Biología Tropical, 2006
From 1993 to 1997, we observed Scarlet Macaw (Ara macao) feeding behavior in Central Pacific Costa Rica. Feeding data acquired in this study were not collected systematically, but opportunistically whenever macaws were observed feeding.
Christopher Vaughan, Nicole Nemeth, Leonel Marineros   +2 more
doaj   +1 more source

Philornis sp. bot fly larvae in free living scarlet macaw nestlings and a new technique for their extraction

Veterinary Parasitology, 2016
Bot fly larvae (Philornis genus) are obligate subcutaneous blood-feeding parasites of Neotropical birds including psittacines. We analyze twelve years of data on scarlet macaw (Ara macao) nestlings in natural and artificial nests in the lowland forests ...
Rozsa, Lajos, Olah, George, Vigo, Gabriela, Ortiz, Lizzie, Brightsmith, Donald J   +4 more
core   +5 more sources

Proventricular and ventricular gastrointestinal stromal tumor (GIST) in a scarlet macaw (Ara chloropterus)

Brazilian Journal of Veterinary Pathology
GISTs can be benign or malignant, and they have been reported in a wide variety of species, including humans, non-human primates, dogs, and cats; however, reports of this tumor in birds are rare. These neoplasms are seen in the gastrointestinal tract and
Gabriel Forte Paranhos, Luiza Chaves Silva, José Lucas Costa Duarte, Hodias Sousa de Oliveira Filho, Thiago Ferreira Lopes Nery, Jeann Leal de Araújo   +5 more
doaj   +2 more sources

Patterns of cytonuclear discordance and divergence between subspecies of the scarlet macaw (Ara macao) in Central America. [PDF]

Genetica, 2023
AbstractThe scarlet macaw, Ara macao, is a neotropical parrot that contains two described subspecies with broadly discrete geographical distributions. One subspecies, A. m. macao, is found from South America north into southwestern Costa Rica, while the second subspecies, A. m. cyanoptera, is found from eastern Costa Rica north into central Mexico. Our
Aardema ML, Schmidt KL, Amato G.
europepmc   +3 more sources

Amorphous diamond-structured photonic crystal in the feather barbs of the scarlet macaw. [PDF]

Proc Natl Acad Sci U S A, 2012
Noniridescent coloration by the spongy keratin in parrot feather barbs has fascinated scientists. Nonetheless, its ultimate origin remains as yet unanswered, and a quantitative structural and optical description is still lacking. Here we report on structural and optical characterizations and numerical simulations of the blue feather barbs of the ...
Yin H, Dong B, Liu X, Zhan T, Shi L, Zi J, Yablonovitch E.   +6 more
europepmc   +4 more sources

Occurrence and Molecular Characterization of Alphaherpesvirus in Psittacines in the State of Mato Grosso. [PDF]

Vet Med Int
The Alphaherpesvirinae subfamily belongs to the Orthoherpesviridae family, whose viruses are characterized by rapid replication and the ability to establish latent infection in host cells. These viruses cause important avian diseases such as Marek’s disease, infectious laryngotracheitis, and Pacheco’s disease (PD) in psittacines. In Brazilian avifauna,
da Silva TR, Costa MTDS, Moraes DFDSD, Vani CRA, Stering ACDS, Dutra V, Nakazato L.   +6 more
europepmc   +2 more sources

Pityriasis Versicolor in a Southern Ground Hornbill (<i>Bucorvus leadbeateri</i>). [PDF]

Case Rep Vet Med
A 20‐year‐old southern ground hornbill (Bucorvus leadbeateri) developed hyperpigmented macules on its gular pouch, resembling the lesions typically seen in humans with pityriasis versicolor. Cytologic examination revealed over 100 budding yeasts per oil immersion field.
Marques GN, Lourenço M, Leal M, Urbani N, Peleteiro MC.   +4 more
europepmc   +2 more sources

Nesting innovations in neotropical parrots associated to anthropogenic environmental changes. [PDF]

Ecol Evol, 2023
Most parrots are obligate cavity nesters, so the logging of mature trees and the transformation of natural cliffs represent important threats to their conservation. Here, we report novel observations of Neotropical parrots nesting in previously unrecorded substrates.
Romero-Vidal P, Blanco G, Hiraldo F, Díaz-Luque JA, Luna Á, Lera D, Zalba S, Carrete M, Tella JL.   +8 more
europepmc   +2 more sources

Prioritizing Conservation Areas for the Hyacinth Macaw (Anodorhynchus hyacinthinus) in Brazil From Low-Coverage Genomic Data. [PDF]

Evol Appl
ABSTRACT Estimates of current genetic diversity and population connectivity are especially important for endangered species that are subject to illegal harvesting and trafficking. Genetic monitoring can also ensure that management units are sustaining viable populations, while estimating genetic structure and population dynamics can influence genetic ...
Vilaça ST, Dalapicolla J, Soares R, Guedes NMR, Miyaki CY, Aleixo A.   +5 more
europepmc   +2 more sources

Polling the Public to Select Flagship Species for Tourism and Conservation-A 'Big Five' for the Peruvian Amazon? [PDF]

Ecol Evol
Flagship species are used to promote conservation and tourism, but selecting species purely for prescribed appealing characteristics may overlook unique flagships or homogenise selections. A strategy of polling the public can more directly identify existing preferences for species for marketing.
Recharte M, Lee PC, Vick SJ, Bowler M.
europepmc   +2 more sources