Results 81 to 90 of about 6,472 (200)
Patterns in tern trophic diversity in a region experiencing rapid climate change
Ecosphere, Volume 16, Issue 10, October 2025.Abstract Foraging plasticity provides a mechanism for long‐lived species to adapt to rapidly changing environments. When shifts in food availability occur, individual variation in plasticity can lead to an increase in within‐species trophic diversity. We tested for drivers of trophic diversity in Arctic tern (Sterna paradisaea) and common tern (Sterna ...
Natasha J. Gownaris +2 more
wiley +1 more source
Brazilian Archives of Biology and Technology, 2010 The aim of this work was to monitor and study the hematocrit and weight of juvenile penguins, with and without oil cover, found alive along the southern coast of Brazil, after capture, as well as before eventual death or release.
Sandra Carvalho Rodrigues +4 more
doaj +1 more source
Foraging behaviour and reproductive success in Magellanic penguins (Sphensicus magellanicus): a comparative study of two colonies [PDF]
, 1999 During the breeding season 1996/97 we compared the foraging and diving behaviour of adult Magellanic penguins (Spheniscus magellanicus), growth rates of their chicks and their breeding success at two colonies in the south of Chile. One of the colonies is
Culik, Boris M., Radl, A.
core +1 more source
Past research and future directions in understanding how birds use their sense of smell
Ibis, Volume 167, Issue 4, Page 853-881, October 2025.Our understanding of the functional importance of olfaction to birds has improved over the past 60 years, largely as the result of experimental studies testing how birds use their sense of smell in different contexts. As it is impossible to measure directly which odours birds can detect, we rely on measuring behavioural responses to scent cues or ...
Darcy Creece +2 more
wiley +1 more source
Fishermen´s perceptions of interactions between seabirds and artisanal fisheries in the Chonos archipelago, Chilean Patagonia [PDF]
, 2013 Interactions between seabirds and commercial fishing activities have been well documented but little information is available regarding the impacts of more traditional fishing practices on seabird populations.
Arriagada, Aldo M. +4 more
core +1 more source
How admixed captive breeding populations could be rescued using local ancestry information
Molecular Ecology, Volume 34, Issue 19, October 2025.Abstract This paper asks the question: can genomic information be used to recover a species that is already on the pathway to extinction due to genetic swamping from a related and more numerous population? We show that a breeding strategy in a captive breeding program can use whole genome sequencing to identify and remove segments of DNA introgressed ...
Daniel J. Lawson +3 more
wiley +1 more source
Aspergilose em pingüim-de-magalhães (Spheniscus magellanicus)
Veterinária e Zootecnia, 2006 A aspergilose é causada por fungos do gênero Aspergillus, acometendo principalmente o tratorespiratório. O trabalho relata um caso de aspergilose em um pingüim-de-Magalhães emreabilitação no Centro de Recuperação de Animais Marinhos (CRAM) de Rio Grande (RS,Brasil).
Mário Carlos Araújo Meireles +9 more
openaire +1 more source
Pesquisa Veterinária Brasileira, 2013 The occurrence of infections and the disease induced by Contracaecum plagiaticium and Contracaecum pelagicum in Magellanic penguins, Spheniscus magellanicus Foster.
Sabrina D.E. Campos +5 more
doaj
Landscape genomics: natural selection drives the evolution of mitogenome in penguins
BMC Genomics, 2018 Background Mitochondria play a key role in the balance of energy and heat production, and therefore the mitochondrial genome is under natural selection by environmental temperature and food availability, since starvation can generate more efficient ...
Barbara Ramos +8 more
doaj +1 more source
Population regulation in Magellanic penguins: what determines changes in colony size? [PDF]
, 2015 Seabirds are often studied at individual colonies, but the confounding effects of emigration and mortality processes in open populations may lead to inappropriate conclusions on the mechanisms underlying population changes. Magellanic penguin (Spheniscus
Boersma, P. Dee +3 more
core +1 more source