Results 41 to 50 of about 639,083 (332)

Avian Bornavirus in Free-Ranging Psittacine Birds, Brazil

open access: yesEmerging Infectious Diseases, 2014
Avian bornavirus (ABV) has been identified as the cause of proventricular dilatation disease in birds, but the virus is also found in healthy birds. Most studies of ABV have focused on captive birds.
Nuri Encinas-Nagel   +8 more
doaj   +1 more source

Long-term effects of chronic light pollution on seasonal functions of European blackbirds (turdus merula) [PDF]

open access: yes, 2013
Light pollution is known to affect important biological functions of wild animals, including daily and annual cycles. However, knowledge about long-term effects of chronic exposure to artificial light at night is still very limited.
A Dawson   +48 more
core   +2 more sources

Survival of captive-raised light-footed Ridgway’s rails is influenced by release date and time in wild

open access: yesAvian Conservation and Ecology
Captive breeding and translocation programs are an increasingly common conservation tool and management strategy used for some of the rarest and most endangered species in the world.
Kimberly A Sawyer, Courtney J. Conway
doaj   +1 more source

Antibody Prevalence of West Nile Virus in Birds, Illinois, 2002

open access: yesEmerging Infectious Diseases, 2004
Antibodies to West Nile virus were detected in 94 of 1,784 Illinois birds during 2002. Captive and urban birds had higher seropositivity than did birds from natural areas, and northern and central Illinois birds’ seropositivity was greater than that from
Adam M. Ringia   +5 more
doaj   +1 more source

Captive wild birds as reservoirs of enteropathogenic E. coli (EPEC) and Shiga-toxin producing E. coli (STEC)

open access: yesBrazilian Journal of Microbiology, 2017
Psittacine birds have been identified as reservoirs of diarrheagenic Escherichia coli, a subset of pathogens associated with mortality of children in tropical countries. The role of other orders of birds as source of infection is unclear. The aim of this
Lilian Aparecida Sanches   +7 more
semanticscholar   +1 more source

Challenges of measuring body temperatures of free-ranging birds and mammals [PDF]

open access: yes, 2015
The thermal physiology of most birds and mammals is characterised by considerable spatial and temporal variation in body temperature. Body temperature is, therefore, a key parameter in physiological, behavioural and ecological research.
Gallon, S., McCafferty, D.J., Nord, A.
core   +2 more sources

A non-invasive feather-based methodology for the detection of blood parasites (Haemosporida)

open access: yesScientific Reports, 2023
Blood parasite (haemosporidian) infections are conventionally detected using blood samples; this implies capturing and handling birds to obtain them, which induces stress and causes pain.
Merit González-Olvera   +5 more
doaj   +1 more source

Novel adenoviruses from captive psittacine birds in Slovenia

open access: yesComparative Immunology, Microbiology and Infectious Diseases, 2022
To assess the prevalence of adenoviruses in psittacine birds kept in Slovenia, 258 cloacal swabs were collected from different psittacine species and screened by a nested PCR with degenerate, consensus primers targeting the adenoviral DNA polymerase gene. Forty-two samples were found to be positive.
Marko Zadravec   +8 more
openaire   +3 more sources

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

open access: yesThe Anatomical Record, EarlyView.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx   +6 more
wiley   +1 more source

Cognition in the field: comparison of reversal learning performance in captive and wild passerines

open access: yesScientific Reports, 2017
Animal cognitive abilities have traditionally been studied in the lab, but studying cognition in nature could provide several benefits including reduced stress and reduced impact on life-history traits.
M. Cauchoix   +3 more
doaj   +1 more source

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