Results 31 to 40 of about 7,412 (197)
Veterinary Record, 2015 AVIAN chlamydiosis is primarily caused by the intracellular bacterium Chlamydia psittaci , belonging to the Chlamydiaceae family. Depending on the species and age of the bird and the virulence of the infectious bacterial strain, avian chlamydiosis can be subclinical or characterised by respiratory, digestive, or systemic disorders (Knittler and others ...
DI FRANCESCO, ANTONIETTA +7 more
openaire +4 more sources
Occurrence of Chlamydiae in Corvids in Northeast Italy
Animals, 2022 Chlamydiaceae occurrence has been largely evaluated in wildlife, showing that wild birds are efficient reservoirs for avian chlamydiosis. In this study, DNA extracted from cloacal swabs of 108 corvids from Northeast Italy was screened for Chlamydiaceae ...
Rachid Aaziz +7 more
doaj +1 more source
A bird's eye view: using geographic analysis to evaluate the representativeness of corvid indicators for West Nile virus surveillance [PDF]
, 2007 Background The objective of this evaluation was to determine whether reports of dead corvid sightings and submissions of dead corvids for West Nile virus testing were representative of true corvid mortality in British Columbia in 2004, a year with no ...
Samara T David +3 more
core +1 more source
Frontiers in Ecology and Evolution, 2019 It is well-known that some members of the crow family (Corvidae) are important for seed dispersal either via frugivory (e.g., when feeding on berries) or by scatter hoarding (e.g., of nuts). Dispersal via gut passage of seeds within a fleshy fruit can be
Andy J. Green +2 more
doaj +1 more source
Mortality associated with avian reovirus infection in a free-living magpie (Pica pica) in Great Britain [PDF]
, 2015 Avian reoviruses (ARVs) cause a range of disease presentations in domestic, captive and free-living bird species. ARVs have been reported as a cause of significant disease and mortality in free-living corvid species in North America and continental ...
Cunningham, AA +9 more
core +1 more source
Carrion crows (Corvus corone) of southwest Germany: important hosts for haemosporidian parasites
Malaria Journal, 2017 Background Avian malaria parasites (Plasmodium spp.) and other Haemosporida (Haemoproteus and Leucocytozoon spp.) form a diverse group of vector-transmitted blood parasites that are abundant in many bird families.
Sandrine Schmid +4 more
doaj +1 more source
The Mental Lives of Sheep and the Quest for a Psychological Taxonomy [PDF]
, 2019 In this commentary on Marino and Merskin's "Intelligence, complexity, and individuality in sheep", I argue that their literature review provides further evidence of the fundamental theoretical shift in psychology towards a non-anthropocentric ...
Figdor, Carrie
core +2 more sources
Collective roost of corvids in Melitopol (Zaporozhye region) in 2014–2015
Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ, 2016 The article contains the results of observations on the formation, existence and the dissociation of the collective winter roost of corvids (crow species) in 2014–2015 in Melitopol (Zaporozhye region).
A. О. Dranga, P. I. Gorlov
doaj +1 more source
Webcams as a Remote Tool for Eco-ethological Research: A Study on the Alpine Chough
Frontiers in Environmental Science, 2021 Methods and devices specifically created for remote animal surveys and monitoring are becoming increasingly popular and effective. However, remote devices are also widely used in our societies for different, not scientific, goals.
Cristina Vallino +4 more
doaj +1 more source
Is caching the key to exclusion in corvids? The case of carrion crows (Corvus corone corone) [PDF]
, 2011 Recently, two corvid species, food-caching ravens and non-caching jackdaws, have been tested in an exclusion performance (EP) task. While the ravens chose by exclusion, the jackdaws did not. Thus, foraging behaviour may affect EP abilities.
Sandra Mikolasch +2 more
core +1 more source