Results 101 to 110 of about 15,389 (243)

Aversion Training in Psittacine Release: A Case Study with Confiscated Amazona Parrots in Costa Rica

open access: yesBirds
Illegal wildlife trade exerts severe pressure on wild parrot populations, and confiscated parrots often end up in rescue centers where they are rehabilitated for release. However, parrots kept in captivity often develop potentially maladaptive behaviors,
Roshan Tailor   +4 more
doaj   +1 more source

Les Amazones com a model d´inversió social [PDF]

open access: yes, 2013
La figura de l´Amazona, singularitzada en les diverses reines que apareixen al llarg de la literatura des de l´època grega, es caracteritza per la pertanyença a un estat ginecocràtic que trenca les normes socials tant de l´Antiga Grècia com de les ...
Pomer Monferrer, Luis
core  

Flavobacterium oreochromis From Farmed Tambaqui (Colossoma macropomum): Insights Into Genetic, Phenotypic and Pathogenic Diversity

open access: yesJournal of Fish Diseases, EarlyView.
ABSTRACT Flavobacterium spp. are the etiological agents of columnaris disease. Although there is evidence that columnaris poses a significant threat to the farming of tambaqui (Colossoma macropomum), there remains a large gap in understanding the genetic and phenotypic diversities of columnaris‐causing bacteria (CCB).
Elcimara Cardoso Pereira   +8 more
wiley   +1 more source

[PROVISIONAL] Chromosomal characterization of Amazonian freshwater stingrays with evidence for new karyomorphs and XX/XY sex chromosomes

open access: yesGenetics and Molecular Biology
Cytogenetic studies in the subfamily Potamotrygoninae has already provided valuable insights into the understanding of the evolution and diversification of its species.
Francisco Carlos de Souza Valentim   +2 more
doaj   +1 more source

Fit for purpose? Analysis of the relationship between skull, beak shape and feeding ecology in Psittaciformes

open access: yesJournal of Anatomy, EarlyView.
Psittaciformes exhibit high levels of morphological diversity, particularly in skull and beak structure, previously linked to diet and body size. Although there were some levels of significance between diet and beak shape, body mass was a much stronger co‐variate. Diet is not determining beak shape within the clade.
Shannon L. Harrison   +2 more
wiley   +1 more source

Avifauna of “RPPN da UNISC”, Sinimbu municipality, Rio Grande do Sul, Brazil [PDF]

open access: yesBiotemas, 2010
This work presents a list of 169 bird species registered at the “RPPN da UNISC”, Private Natural Heritage in Sinimbu municipality, Rio Grande do Sul state. The survey was carried out between January 2007 and January 2009. Five species were highlighted as
Samuel Lopes Oliveira, Andreas Köhler
doaj  

An updated classification of growth forms in non‐geniculate coralline algae (Corallinophycidae, Rhodophyta)

open access: yesJournal of Phycology, EarlyView.
Abstract The current challenge of defining growth forms in the non‐geniculate coralline red algae was addressed. Since the 19th century, those who have worked on this large and globally distributed group of algae have tried to summarize and systematically describe their growth forms. This effort resulted in a plethora of terms, which could sometimes be
Gavin W. Maneveldt   +18 more
wiley   +1 more source

Aspectos clinico-patológicos em papagaios-verdadeiros (Amazona aestiva, L., 1758) oriundos de apreensões do tráfico no estado da Paraíba, Brasil

open access: yesBrazilian Journal of Veterinary Medicine, 2016
. Siqueira R.A.S., de Lucena R.B., Cavalcanti T.A., Luna A.C. de L., Firmino M. de O. & Guerra R.R. [Clinical-pathological aspects of Blue-fronted Parrots parrots (Amazona aestiva, Linne 1758) coming traffickin arrests from the State of Paraíba, Brazil.]
Raul Antunes Silva Siqueira   +5 more
doaj  

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

open access: yes, 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

Adapting the growth‐form concept to geniculate coralline algae (Corallinales, Rhodophyta)

open access: yesJournal of Phycology, EarlyView.
Abstract Geniculate coralline algae (Corallinales, Rhodophyta) are a diverse group of calcifying macroalgae, loosely united by flexible upright axes formed by alternating calcified (intergenicula) and uncalcified segments (genicula), a trait that has independently arisen several times.
Jakop Schwoerbel   +18 more
wiley   +1 more source

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