Results 61 to 70 of about 639,083 (332)

Psittacid Adenovirus-2 infection in the critically endangered orange-bellied parrot (Neophema chrysogastor): A key threatening process or an example of a host-adapted virus?

open access: yesPLoS ONE, 2019
Psittacid Adenovirus-2 (PsAdv-2) was identified in captive orange-bellied parrots (Neophema chrysogastor) during a multifactorial cluster of mortalities at the Adelaide Zoo, South Australia, and an outbreak of Pseudomonas aeruginosa septicaemia at the ...
Nian Yang   +6 more
doaj   +1 more source

Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade

open access: yesBiological Reviews, EarlyView.
ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan   +2 more
wiley   +1 more source

Individualised niches: an integrative conceptual framework across behaviour, ecology, and evolution

open access: yesBiological Reviews, EarlyView.
ABSTRACT Individuals differ. While seemingly trivial, this insight has nevertheless led to paradigm shifts, as three key fields of organismal biology have seen marked changes in key concepts over the past few decades. In animal behaviour, it has become increasingly recognised that behavioural differences among individuals can be stable over time and ...
Oliver Krüger   +27 more
wiley   +1 more source

ANÁLISES COPROPARASITOLÓGICAS DE AVES SILVESTRES CATIVAS

open access: yesCiência Animal Brasileira, 2014
In most instances of parasitism in captive birds there is no expression of clinical signs. This fact underscores the importance of performing frequent parasitological examinations in these animals.
Alessandra Snak   +5 more
doaj   +1 more source

Investigation of avian influenza infection in wild birds in Ismailia and Damietta cities, Egypt [PDF]

open access: yesVeterinary World, 2017
Aim: This study was carried out to monitor avian influenza (AI) infection in wild birds in Egypt. Materials and Methods: A total of 135 wild birds were examined for the presence of H5, H7, and H9 hemagglutination inhibition antibodies. Organs and swab
Hanaa Mohamed Fadel, Rabab Afifi
doaj   +1 more source

Correction: Epizootic Emergence of Usutu Virus in Wild and Captive Birds in Germany

open access: yesPLoS ONE, 2012
The following information was missing from the Funding section: The study was also supported by the European Union FP7 project European Management Platform for Emerging and Reemerging Infectious Disease Entities (EMPERIE; no. 223498).
N. Becker   +20 more
semanticscholar   +1 more source

Classifying avian drinking behaviour: ecological insights and implications in a changing world

open access: yesBiological Reviews, EarlyView.
ABSTRACT Water is a fundamental currency of life, and its availability significantly influences animal behaviour, physiology and distributions. However, our knowledge around the dependence on water for drinking and the direct and indirect mechanisms driving related behaviours remains partial in the context of changing climates. Here, we review patterns
Shannon R. Conradie, Marc T. Freeman
wiley   +1 more source

A neuro‐behavioural model of neophobia

open access: yesBiological Reviews, EarlyView.
ABSTRACT Fear can be defined as the internal neurological state that releases a repertoire of behaviours an animal performs to reduce the effect of an aversive factor. Neophobia, the fear of novelty, is a fundamental behavioural trait observed across a wide range of species from arthropods to humans.
Arik Dorfman, Aziz Subach, Inon Scharf
wiley   +1 more source

Seroprevalence of Chlamydia psittaci in captive macaws (Ara spp.) in the department of Lima, Peru

open access: yesCiência Animal Brasileira, 2018
The presence of Chlamydia psittaci in captive psittacines may have a subclinical presentation, despite its importance in immunosuppressed birds and humans because of its zoonotic potential.
Nancy Carlos, Elizabeth Portuguez Luyo
doaj   +1 more source

Factors affecting breeding status of wading birds in the Everglades. [PDF]

open access: yes, 2000
This goals of this research and monitoring effort are to document nesting effort and roughly categorize success of nesting by wading birds in the central Everglades of Florida, and to investigate the causes of nonbreeding in a high proportion of the ...
Frederick, Peter C.   +3 more
core  

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