Results 41 to 50 of about 494 (158)

Past and Future Shifts in Marine Species Distributions Across Two South American Large Marine Ecosystems

open access: yesJournal of Biogeography, Volume 53, Issue 8, August 2026.
ABSTRACT Aim To quantify temporal (Middle Holocene, historical and future) and spatial changes in habitat suitability for marine species in two South American Large Marine Ecosystems, and to evaluate the ecological consistency of long‐term Species Distribution Model projections using archaeological records as independent evidence of past species ...
Maria Bas   +3 more
wiley   +1 more source

The evolution of seabirds in the Humboldt Current: new clues from the Pliocene of Central Chile.

open access: yesPLoS ONE, 2014
BackgroundDuring the last decade, new Neogene fossil assemblages from South America have revealed important clues about the evolution of seabird faunas in one of the major upwelling systems of the world: the Humboldt Current. However, most of this record
Martín Chávez Hoffmeister   +2 more
doaj   +1 more source

Penguins on the Move: Mapping Priority Penguin Habitat Areas Under Climate Change

open access: yesDiversity and Distributions, Volume 32, Issue 7, July 2026.
ABSTRACT Aim To identify and map Priority Penguin Habitat Areas (PPHAs), defined as marine regions that are environmentally suitable for penguins under present and future climates, in order to inform climate‐smart conservation planning across Southern Hemisphere. Location Marine realms of the Southern Hemisphere. Methods We modelled occurrence data for
Francisco Ramírez   +6 more
wiley   +1 more source

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

open access: yesArquivo 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   +5 more
doaj   +1 more source

Stable Isotope Analysis of New Zealand Fur Seal Vibrissae Shows Deceased Juveniles Were Weaned Early

open access: yesNew Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 2, June 2026.
The New Zealand fur seal/kekeno (Arctocephalus forsteri, NZFS) is a marine predator native to Aotearoa/New Zealand. Little is known about its fine‐scale dispersal around New Zealand in the nonbreeding season. As an alternative to external marking or electronic tracking, stable isotope analysis was trialed to determine the origin of stranded (deceased ...
Diana Galbraith, B. Louise Chilvers
wiley   +1 more source

Exploring the potential population impacts of puma predation on a mainland Magellanic penguin colony through an interactive tool

open access: yesEcological Informatics
The success of restoration efforts has resulted in the expanding range of large predators from their historical lows in many areas of the world. In many cases these predators are returning to ecosystems that have been altered since their historical ...
Thomas Connor   +7 more
doaj   +1 more source

Intraclutch Egg-Size Variation in Magellanic Penguins [PDF]

open access: yesThe Condor, 2005
Abstract We investigated patterns and consequences of intraclutch egg-size variation in Magellanic Penguins (Spheniscus magellanicus). First-laid eggs were significantly larger than second-laid eggs, although the mean difference represented only 2% of an average egg's volume.
Nicole E. Rafferty   +2 more
openaire   +1 more source

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

open access: yesArquivo 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   +4 more
doaj   +1 more source

Shifting Seas, Changing Diets: Evidence of Temporal Dietary Shifts in Marine Megafauna in Southern Brazil (2017–2023)

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT Understanding the dietary dynamics of marine megafauna is essential for interpreting ecological interactions and assessing environmental changes in marine ecosystems. We analysed temporal trends in the diets of eight megafaunal species, comprising marine mammals, seabirds, and sea turtles.
Joao Bosco Gusmao   +2 more
wiley   +1 more source

High resolution data reveal fundamental steps and turns in animal movements

open access: yesEcological 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   +68 more
wiley   +1 more source

Home - About - Disclaimer - Privacy