Results 21 to 30 of about 6,472 (200)

Comparing plasma and faecal measures of steroid hormones in Adelie penguins Pygoscelis adeliae [PDF]

open access: yes, 2010
Physiological measurements of both stress and sex hormones are often used to estimate the consequences of natural or human-induced change in ecological studies of various animals.
Banks, Jonathan C.   +15 more
core   +2 more sources

Avian Pox in Magellanic Penguins (Spheniscus magellanicus) [PDF]

open access: yesJournal of Wildlife Diseases, 2012
Avian pox is an enveloped double-stranded DNA virus that is mechanically transmitted via arthropod vectors or mucosal membrane contact with infectious particles or birds. Magellanic Penguins (Spheniscus magellanicus) from two colonies (Punta Tombo and Cabo Dos Bahías) in Argentina showed sporadic, nonepidemic signs of avian pox during five and two of ...
Kane, Olivia J.   +7 more
openaire   +3 more sources

Una nueva especie de spheniscidae del Mioceno Tardío de la Formación Pisco, Perú

open access: yesBulletin de l'Institut Français d'Études Andines, 2003
A new species of genus Spheniscus is described based on cranial elements from Late Miocene of Pisco Formation on the central-southern coast of Peru.
Marcelo Stucchi   +2 more
doaj   +1 more source

Primeiro estudo parasitológico em rã com garras Africano (Xenopus laevis, Anfibia) no Chile [PDF]

open access: yes, 2017
Introduced species can arrive into new territories with parasites; however, these species are expected to face lower parasite richness than in their original regions. Both introduced hosts and parasites can affect native fauna.
Castillo, Cristóbal   +5 more
core   +1 more source

The role of demographic history and selection in shaping genetic diversity of the Galápagos penguin (Spheniscus mendiculus).

open access: yesPLoS ONE, 2020
Although many studies have documented the effects of demographic bottlenecks on the genetic diversity of natural populations, there is conflicting evidence of the roles that genetic drift and selection may play in driving changes in genetic variation at ...
Gabriella Arauco-Shapiro   +3 more
doaj   +1 more source

The collection and database of Birds of Angola hosted at IICT (Instituto de Investigação Científica Tropical), Lisboa, Portugal [PDF]

open access: yes, 2014
The bird collection of the Instituto de Investigação Cientítica Tropical (Lisbon, Portugal) holds 5598 preserved specimens (skins), mainly from Angola, Mozambique, Guinea-Bissau, São Tomé and Principe, and Cape Verde.
Monteiro, Miguel   +9 more
core   +3 more sources

Foraging movements of emperor penguins at Pointe Géologie, Antarctica. [PDF]

open access: yes, 2008
International audienceThe foraging distributions of 20 breeding emperor penguins were investigated at Pointe Ge´ologie, Terre Ade´lie, Antarctica by using satellite telemetry in 2005 and 2006 during early and late winter, as well as during late spring ...
Ancel, A.   +5 more
core   +2 more sources

Tangled and drowned: a global review of penguin bycatch in fisheries

open access: yesEndangered Species Research, 2017
Penguins are the most threatened group of seabirds after albatrosses. Although penguins are regularly captured in fishing gear, the threat to penguins as a group has not yet been assessed.
Crawford, R   +28 more
doaj   +1 more source

Seasonal variations in the behavioural thermoregulation of roosting Humboldt Penguins (Spheniscus humboldti) in north-central Chile. [PDF]

open access: yes, 2004
We examined the thermoregulatory behaviour (TRB) of roosting Humboldt penguins (Spheniscus humboldti) in north central Chile during summer and winter, when ambient temperatures (Ta) are most extreme.
Luna-Jorquera, G.   +2 more
core   +1 more source

Challenges to establish the diagnosis of aspergillosis in non-laboratory animals: looking for alternatives in veterinary medicine and demonstration of feasibility through two concrete examples in penguins and dolphins

open access: yesFrontiers in Cellular and Infection Microbiology, 2022
Aspergillosis remains difficult to diagnose in animals. Laboratory-based assays are far less developed than those for human medicine, and only few studies have been completed to validate their utility in routine veterinary diagnostics.
Guillaume Desoubeaux   +4 more
doaj   +1 more source

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