Results 51 to 60 of about 635 (168)

High resolution data reveal fundamental steps and turns in animal movements

Ecological Monographs, Volume 96, Issue 2, May 2026.
Abstract Animal movement paths display substantial complexity and variability, promoting efforts to identify universal rules and models that best describe them. Using high‐resolution (≥10 Hz) movement from 43 vertebrate species spanning diverse taxa, body sizes, and lifestyles, we show that paths are universally composed of straight‐line steps ...
Richard M. Gunner, Rory P. Wilson, Miguel Lurgi, Luca Börger, James Redcliffe, Emily L. C. Shepard, Mark D. Holton, Margaret C. Crofoot, Abdulaziz Alagaili, Samantha Andrzejaczek, Daniel Ariano‐Sánchez, Thomas Barbedette‐Gerard, Nigel C. Bennett, Alice Bernard, Rowan Brown, Nik Cole, Scott Creel, Ariovaldo P. Cruz‐Neto, Agustina di Virgilio, Carlos M. Duarte, Christophe Eizaguirre, Kyle H. Elliott, Monika Faltusova, Mathieu Garel, Natasha Gillies, Adrian C. Gleiss, Aoife Göppert, David Grémillet, Sophie de Grissac, Tim Guilford, Maxime Hoareau, Mark Jessopp, Agustina Gómez‐Laich, Milos Jezek, Sergio A. Lambertucci, Pascal Marchand, Nikki Marks, Andréia Martins, Mark Meekan, Yuichi Mizutani, Rasmus M. Mortensen, Bradley M. Norman, Josue Ortega, Oliver Padget, Michael Painter, Aurore Ponchon, Pascal Provost, Aurélien Prudor, Flavio Quintana, Stefanie Reinhardt, Samantha D. Reynolds, Frank Rosell, Carlos R. Ruiz‐Miranda, Peter G. Ryan, David M. Scantlebury, Stefan Schoombie, Rebecca Scott, Vaclav Silovsky, Jeroen Steenbeek, Vikash Tatayah, Carole Toïgo, Lucia Torrez, Fred Tremblay, Joshua P. Twining, Ken Yoda, Henri Weimerskirch, Shannon Whelan, Juan M. Morales, Jonathan R. Potts   +68 more
wiley   +1 more source

Nuevos datos del uso de la costa en el extremo sur del continente por cazadores-recolectores durante el Holoceno tardío. El sitio Cabo Vírgenes 24 (Santa Cruz, Argentina)

Revista del Museo de Antropologia, 2017
El sitio Cabo Vírgenes 24 (CV24) se ubica en el extremo sureste de la Patagonia continental y presenta ocupaciones entre 753-888 (1270 ± 60 14C A.P - LP3229) y 545-626 años Cal A.P (619 ± 26 14C A.P - AA106800).
Flavia Carballo Marina, Juan Bautista Belardi, G. Lorena L’Heureux   +2 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

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

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

Los pingüinos de las costas argentinas: estado poblacional y conservación

El Hornero, 2005
En las costas de Argentina se reproducen tres especies de pingüinos: el Pingüino de Magallanes (Spheniscus magellanicus), el Pingüino Penacho Amarillo (Eudyptes chrysocome) y el Pingüino Papúa (Pygoscelis papua). El Pingüino Rey (Aptenodytes patagonica)
Adrián Schiavini , Pablo Yorio, Patricia Gandini, Andrea Raya Rey, P Dee Boersma   +4 more
doaj   +1 more source

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

Contracaecum pelagicum and C. plagiaticium (Nematoda: Anisakidae) infection in Magellanic penguins (Sphenisciformes: Spheniscidae) on the coast of Rio de Janeiro State Infecção por Contracaecum pelagicum e C. plagiaticium (Nematoda: Anisakidae) em pinguins-de-Magalhães (Sphenisciformes: Spheniscidae) na costa do Estado do Rio de Janeiro

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, Bárbara Bianca N. Pereira, Salvatore Siciliano, Carlos Henrique C. Costa, Nádia R.P. Almosny, Beatriz Brener   +5 more
doaj  

The morphology of the pineal gland of the Magellanic penguin (Spheniscus magellanicus Forster, 1781) [PDF]

Journal of Morphological Sciences, 2015
Abstract Introduction: The Magellanic Penguin migrates on the ocean currents from its reproduction colonies in Patagonia to seek abundant food on the Brazilian continental shelf. The pineal gland, an endocrine gland, whose secretions are affected by the light-darkness photoperiod, has a basic function in the biological processes of migrating ...
Barcelos, R. P., Filadelpho, A. L., Baroni, S., Graça, W. J.   +3 more
openaire   +2 more sources

Disturbance by jet boating increases corticosterone concentrations in the black‐backed gull (Larus dominicanus)

New Zealand Journal of Zoology, Volume 52, Issue 5, Page 537-550, December 2025.
ABSTRACT Recreational activities such as jet boating have the potential to disturb native birds that rely on braided river habitats. To examine whether jet boating affects levels of glucocorticoid hormones, which can increase in animals under stress, we compared concentrations of corticosterone in the faeces of nesting black‐backed gulls (Larus ...
Sanaz Safavian, James V. Briskie, Elissa Cameron, Hazel Chapman   +3 more
wiley   +1 more source