Results 31 to 40 of about 4,259 (157)

The complete mitogenome of red-collared lorikeet (Trichoglossus rubritorquis) and its phylogenetic analysis

open access: yesMitochondrial DNA. Part B. Resources, 2019
The complete mitogenome of a lorikeet, Trichoglossus rubritorquis (Psittaciformes, Loriidae), was determined first in the genus Trichoglossus. The assembled mitogenome was 17,915 bp and composed of 13 protein-coding genes, 22 tRNAs, two rRNAs and two ...
Nan Xu   +3 more
doaj   +1 more source

Urban Parrots in Southern South America: Challenges and Opportunities

open access: yesBirds
Data on the interactions between the order Psittaciformes and the anthropogenic environment are still insufficient and have not been systematized, especially in the Neotropical region.
Daiana N. Lera   +4 more
doaj   +1 more source

Chromosomal Diversity and Karyotype Evolution in South American Macaws (Psittaciformes, Psittacidae). [PDF]

open access: yesPLoS ONE, 2015
Most species of macaws, which represent the largest species of Neotropical Psittacidae, characterized by their long tails and exuberant colours, are endangered, mainly because of hunting, illegal trade and habitat destruction. Long tailed species seem to
Ivanete de Oliveira Furo   +4 more
doaj   +1 more source

Occurrence of Tetrameres confusa (Nematoda, Tetrameridae) in Ara ararauna (Psittacidae) Ocorrência de Tetrameres confusa (Nematoda, Tetrameridae) em Ara ararauna (Psittacidae)

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2005
Relata-se a ocorrência de Tetrameres confusa Travassos 1917 (= T. americana (Cram, 1927) Baylis, 1929) (Nematoda, Tetrameridae) em um novo hospedeiro, Ara ararauna Linnaeus, 1758 (Aves, Psittacidae).
R.J. Silva   +2 more
doaj   +1 more source

ACTH Stimulation Induced Self-Mutilation Behavior in the Golden Conure (Guaruba guarouba)

open access: yesAnimals, 2020
Psittacidae are very susceptible to chronic stress and behavioral disorders. Information regarding the endocrinology of the golden conure is scarce, especially about adrenocortical activity.
Juliana Anaya Sinhorini   +2 more
doaj   +1 more source

With a little help from my (Psittacidae) friends [PDF]

open access: yesLearning & Behavior, 2020
Understanding the distribution of and mechanisms underlying prosocial behavior in other species has been hampered by methodological differences among studies, questions about animals' interpretations of the designs, and low phylogenetic diversity. Brucks and von Bayern's recent report that African gray parrots are proactively prosocial reiterates the ...
openaire   +2 more sources

Hematologic reference values of Vinaceous-breasted Amazon (Amazona vinacea)

open access: yesCiência Rural
Avian hematologic reference intervals are useful tools to evaluate body homeostasis and diagnose diseases. However, there are few species-specific reference intervals published.
Vanessa Rafaella Foletto da Silva   +4 more
doaj   +1 more source

Bite force estimates and morphological correlations of jaw muscles in parrots

open access: yesThe Anatomical Record, EarlyView.
Abstract Parrots (Order: Psittaciformes) are renowned for their high bite force (BF) and morphological correlates thereof, including a highly mobile skull and two unique mandibular adductor muscles—m. pseudomasseter and m. ethmomandibularis, with the former being hypothesized to increase force output.
Ana Carolina L. Faillace   +3 more
wiley   +1 more source

Population recovery of an endangered macaw enhances long‐distance seed dispersal via stomatochory

open access: yesOikos, EarlyView.
Seed dispersal by large, mobile vertebrates plays a key role in shaping plant spatial dynamics and community structure. However, how variation in animal population size influences the magnitude and spatial scale of seed dispersal remains poorly understood.
Giulyana A. Benedicto   +2 more
wiley   +1 more source

The link between colorfulness and extinction risk across the world's passerine birds

open access: yesConservation Biology, EarlyView.
Abstract Many of the functional traits that mediate extinction risk across the range of biodiversity relate indirectly to a species’ ability to persist in a changing world, yet certain traits such as coloration directly affect human interactions with wildlife.
Montague H. C. Neate‐Clegg   +1 more
wiley   +1 more source

Home - About - Disclaimer - Privacy