Results 61 to 70 of about 2,821 (239)

Krill-feeding behaviour in a chinstrap penguin compared to fish-eating in Magellanic penguins: a pilot study. [PDF]

, 2004
Inferring feeding activities from undulations in diving depth profiles is widespread in studies of foraging marine predators. This idea, however, has rarely been tested because of practical difficulties in obtaining an independent estimate of feeding ...
Croxall, J. P., Dunn, M. J., Naito, Y., Sato, K., Takahashi, A.., Trathan, P. N., Wilson, Rory P.   +6 more
core  

Dead-reckoning animal movements in R: a reappraisal using Gundog.Tracks

Animal Biotelemetry, 2021
Background Fine-scale data on animal position are increasingly enabling us to understand the details of animal movement ecology and dead-reckoning, a technique integrating motion sensor-derived information on heading and speed, can be used to reconstruct
Richard M. Gunner, Mark D. Holton, Mike D. Scantlebury, O. Louis van Schalkwyk, Holly M. English, Hannah J. Williams, Phil Hopkins, Flavio Quintana, Agustina Gómez-Laich, Luca Börger, James Redcliffe, Ken Yoda, Takashi Yamamoto, Sam Ferreira, Danny Govender, Pauli Viljoen, Angela Bruns, Stephen H. Bell, Nikki J. Marks, Nigel C. Bennett, Mariano H. Tonini, Carlos M. Duarte, Martin C. van Rooyen, Mads F. Bertelsen, Craig J. Tambling, Rory P. Wilson   +25 more
doaj   +1 more source

Adaptive Genetic Variation in Black‐and‐White Snub‐Nosed Monkeys (Rhinopithecus bieti): Low Diversity and the Role of Balancing Selection

Ecology and Evolution, Volume 16, Issue 3, March 2026.
We investigated the adaptive genetic diversity within a population of Rhinopithecus bieti using amplicon sequencing. From 47 individuals, we identified 16 MHC class I sequences, revealing a low level of adaptive genetic variation. Although evidence for balancing selection, including positive selection and trans‐species polymorphism, was observed, these
Fei Long, Mei‐Jing Ying, Tian‐Qi Shi, Paul A. Garber, Ru‐Liang Pan, Jian‐Dong Lai, Zhi‐Pang Huang, Bao‐Guo Li, Pei Zhang   +8 more
wiley   +1 more source

Morfologia do coração e dos vasos da base do pinguim-de-magalhães (Spheniscus magellanicus)

Arquivo Brasileiro de Medicina Veterinária e Zootecnia
RESUMO O pinguim-de-magalhães é uma ave marinha de porte médio, de origem do hemisfério sul, com grandes colônias próximas à Patagônia. Em certas épocas do ano, alguns exemplares aparecem no litoral brasileiro, devido ao desvio de rotas de caça, e alguns
D.F. Guimarães, A.P.M. Carvalho, J. Ywasaki, C.D. Neves, A.B.F. Rodrigues, L.S. Silveira   +5 more
doaj   +1 more source

Gross and histopathological findings in magellanic penguins (Spheniscus magellanicus Forster, 1781)

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2012
Durante os movimentos migratórios os Pinguins-de-Magalhães chegam às águas da costa brasileira, especialmente nos estados do sul do Brasil até o estado do Rio de Janeiro. Muitos chegam desidratados, hipotérmicos, com lesões traumáticas ou coberto de óleo,
C.O. Carvalho, S.C. Cuenca, S.R. Kleeb, H. Gallo, P. Baldassin   +4 more
doaj   +1 more source

Compound-specific stable isotope analyses in Falkland Islands seabirds reveal seasonal changes in trophic positions

BMC Ecology, 2020
Background While nitrogen and carbon stable isotope values can reflect ecological segregation, prey choice and spatial distribution in seabirds, the interpretation of bulk stable isotope values is frequently hampered by a lack of isotopic baseline data ...
Petra Quillfeldt, Juan F. Masello
doaj   +1 more source

Swimming modes affect dive durations in diving birds

Journal of Avian Biology, Volume 2026, Issue 2, March 2026.
Dive duration and body mass are positively correlated across air‐breathing vertebrate species, but other factors affecting dive duration are inadequately studied. Here, we examined the effect of a previously overlooked factor, swimming mode, using phylogenetically informed statistics with data on the diving capabilities of 53 species of avian divers ...
Hiroya Matsushita, Yuuki Y. Watanabe
wiley   +1 more source

Contemporary outbreaks of different avipoxviruses in Humboldt penguins of wild animal park Planckendael and in chickens of commercial poultry farms in Belgium [PDF]

, 2017
In the present study, the first outbreak of a penguinpox virus (PPV) in Humboldt penguins (Spheniscus humboldd) and four outbreaks of fowlpox virus (FPV) in layer chickens are reported.
Avalakuppa Papi Reddy, Vishwanatha Reddy, Nauwynck, Hans, Trus, Ivan, Vercammen, Francis   +3 more
core  

Establishment of a stable isotope database for New Zealand fur seal breeding colonies using δ13C and δ15N in pup vibrissae

New Zealand Journal of Marine and Freshwater Research, Volume 59, Issue 5, Page 1164-1186, December 2025.
ABSTRACT The New Zealand fur seal/kekeno (Arctocephalus forsteri, NZFS) is native to Aotearoa/New Zealand. Its original range included the entire coast of mainland New Zealand, and offshore and subantarctic islands. The NZFS has gradually recolonised much of its former range after being almost extirpated by hunting, however, little is known about ...
Diana Galbraith, B. Louise Chilvers
wiley   +1 more source

eleanor: An open-source tool for extracting light curves from the TESS Full-Frame Images [PDF]

, 2019
During its two year prime mission the Transiting Exoplanet Survey Satellite (TESS) will perform a time-series photometric survey covering over 80% of the sky.
Bean, Jacob L., Bedell, Megan E., Cardoso, Jose Vinicius de Miranda, Christiansen, Jessie L., Feinstein, Adina D., Foreman-Mackey, Daniel, Hedges, Christina, Luger, Rodrigo, Montet, Benjamin T., Saunders, Nicholas, Scolnic, Daniel   +10 more
core   +2 more sources