Results 11 to 20 of about 186 (108)

Electrocardiographic parameters in captive, clinically healthy, Amazona ochrocephala [PDF]

Revista Mvz Cordoba, 2015
Objective. To stablish the electrocardiographic parameters of individuals of the species Amazona ochrocephala, from the Unidad de Rescate y Rehabilitacion de Animales Silvestres at the Universidad Nacional de Colombia. Materials and methods.
Claudia Guerrero S, Janeth Bolivar B, Piero Vargas-Pinto, Pedro Vargas-Pinto, Claudia Brieva-Rico   +4 more
doaj   +7 more sources

Phylogeny of Amazona barbadensis and the Yellow-headed Amazon complex (Aves: Psittacidae): a new look at South American parrot evolution. [PDF]

PLoS ONE, 2014
The Yellow-shouldered Amazon (Amazona barbadensis) is the sole parrot of the genus Amazona that inhabits only dry forests. Its population has been dropping; therefore it has been the topic of many studies and conservation efforts.
Adam Dawid Urantówka, Paweł Mackiewicz, Tomasz Strzała   +2 more
doaj   +2 more sources

REPRODUCTIVE BEHAVIOR OF THE YELLOW-CROWNED PARROT (AMAZONA OCHROCEPHALA) IN WESTERN PANAMA

Wilson Journal of Ornithology, 2006
Abstract We studied the breeding biology of the Panamanian subspecies of the Yellow-crowned Parrot, Amazona ochrocephala panamensis, during 1997–1999 in the province of Chiriqui, Panama, to provide basic information regarding the breeding behavior and reproductive success of these parrots in their natural habitat.
Rodriguez Castillo, Angelica, Eberhard, Jessica R.   +1 more
exaly   +4 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

Mitochondrial Markers COI and 16S rRNA for the Molecular Identification of Parrots and Macaws Recovered From Illegal Trafficking in Three Areas of Colombia. [PDF]

Ecol Evol
We molecularly characterized parrots (Amazona spp.) and macaws (Ara spp.) rescued from illegal trafficking in Colombia using two mitochondrial markers (COI and 16S rRNA). The COI gene showed high resolution for species identification and revealed considerable intraspecific diversity, while 16S rRNA displayed limited taxonomic resolution.
Marín-Villa J, Rincón-Flórez JC, Úsuga-Monroy C, López-Herrera A.   +3 more
europepmc   +2 more sources

Homozygous CADPS2 Mutations Cause Neurodegenerative Disease with Lewy Body-like Pathology in Parrots. [PDF]

Mov Disord, 2022
Abstract Background Several genetic models that recapitulate neurodegenerative features of Parkinson's disease (PD) exist, which have been largely based on genes discovered in monogenic PD families. However, spontaneous genetic mutations have not been linked to the pathological hallmarks of PD in non‐human vertebrates. Objective To describe the genetic
Lorenzo-Betancor O, Galosi L, Bonfili L, Eleuteri AM, Cecarini V, Verin R, Dini F, Attili AR, Berardi S, Biagini L, Robino P, Stella MC, Yearout D, Dorschner MO, Tsuang DW, Rossi G, Zabetian CP.   +16 more
europepmc   +2 more sources

Antibody prevalence to avian influenza virus subtypes H5, H7 and H9 in falcons, captive and wild birds, United Arab Emirates, 2003-2006. [PDF]

Vet Med Sci, 2023
Antibody prevalence to Avian influenza virus subtypes H5, H7 and H9 in falcons and wild/captive birds, UAE, 2003–2006. The vertical axis indicates the number of samples investigated. Columns 1–3 depict the prevalence of antibodies in sera of wild and captive birds and columns 4–6 the prevalence in falcon samples.
Jöstl N, Weidinger P, Lussy H, Bailey TA, Joseph S, McKeown S, O Donovan D, Li X, Nowotny N.   +8 more
europepmc   +2 more sources

Exocrine Pancreatic Insufficiency in a Yellow-naped Amazon ( Amazona ochrocephala ) with Pancreatic Adenocarcinoma [PDF]

Veterinary Pathology, 1997
This report describes exocrine pancreatic insufficiency in a yellow-naped Amazon ( Amazona ochrocephala) with complete effacement of the pancreas by a pancreatic adenocarcinoma. The bird presented with a 3-month history of weight loss and voluminous, foul-smelling droppings.
J W, Ritchey, L A, Degernes, T T, Brown
  +9 more sources

Environmental Variability Shapes Life History of the World's Birds. [PDF]

Ecol Lett
Theory suggests life history plays a key role in the ability of organisms to persist under fluctuating environmental conditions. Synthesising a collection of global data resources, we demonstrate a link between environmental variability and species' pace of life. Additionally, we highlight the importance of contextualising rates of environmental change
Youngflesh C, Kapsar K, Uscanga A, Williams PJ, Doser JW, Kounta L, Zarnetske PL.   +6 more
europepmc   +2 more sources

Estimated and in vivo measurements of bite force demonstrate exceptionally large bite forces in parrots (Psittaciformes). [PDF]

J Anat
Bite force in parrots has been explored using data from muscle masses. The values were validated by comparison with data for bite force collected from live parrots. The parrot's reputation for a strong bite force is well founded. Abstract Jaw morphology and function determine the range of dietary items that an organism can consume.
Harrison SL, Sutton GP, Herrel A, Deeming DC.   +3 more
europepmc   +2 more sources