Results 31 to 40 of about 221,873 (152)
Responses of Antarctic seabird populations to past climate change
Ecography, Volume 2026, Issue 10, October 2026.Higher‐order predators such as Antarctic seabirds serve as ecological indicators of environmental change and provide a crucial trophic link between marine and terrestrial ecosystems. Despite their prevalence and significance in the Antarctic ecosystem, there is a lack of understanding of the impacts of major regime shifts in paleoclimate on flighted ...
Elize Y. X. Ng +6 more
wiley +1 more source
The Ross Sea in a Sea of Change [PDF]
Oceanography, 2012 The Ross Sea, the most productive region in the Antarctic, reaches farther south than any body of water in the world. While its food web is relatively intact, its oceanography, biogeochemistry, and sea ice coverage have been changing dramatically, and ...
Walker O. Smith Jr. +4 more
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Ground‐truthing of satellite imagery to assess seabird colony size: A test using Adélie penguins
Remote Sensing in Ecology and Conservation, Volume 12, Issue 2, Page 305-317, April 2026.Adélie penguin colony size can be estimated from space using very high‐resolution (VHR; 0.3–0.6 m resolution) satellite imagery due to the contrast between their guano stain and the surrounding terrain. Our study assessed the utility of VHR imagery for making indirect assessments of changes in colony size.
Alexandra J. Strang +9 more
wiley +1 more source
Spatial Resolution Impact Assessment for Long‐Term Population Monitoring of Adélie Penguin Guano
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.Adélie penguins (Pygoscelis adeliae) are key indicators of the Antarctic ecosystem, and remotely sensed guano stains offer an efficient means of estimating breeding abundance. Landsat medium‐resolution (MR) imagery enables long‐term monitoring through its archive.
Jinku Park +9 more
wiley +1 more source
Evolutionary Applications, Volume 19, Issue 3, March 2026.ABSTRACT The large estimates of mesopelagic fish biomass have long fuelled harvesting interests in the relatively untouched twilight zone of the ocean. The silvery lightfish—one of the most abundant species inhabiting the North Atlantic mesopelagic layer—is a candidate for such a fishery despite its enormous ecological importance and the insufficient ...
María Quintela +17 more
wiley +1 more source
Journal of Geophysical Research: Oceans, Volume 130, Issue 11, November 2025.Abstract Here, we present the first dedicated in situ measurements of the thickness distributions of fast ice and the sub‐ice platelet layer, formed by supercooled Ice Shelf Water in north Terra Nova Bay, Antarctica. With the objective of inferring source regions and circulation of Ice Shelf Water, we measured fast ice and sub‐ice platelet layer ...
G. M. Brett +6 more
wiley +1 more source
Fourteen degrees of latitude and a continent apart: comparison of lichen activity over two years at continental and maritime Antarctic sites [PDF]
, 2010 There are marked declines in precipitation, mean temperatures and the number of lichen species with increasing latitude in Antarctica. However, it is not known which factors are the predominant controllers of biodiversity changes.
Burkhard Schroeter +9 more
core +1 more source
Diversity and Distributions, Volume 31, Issue 7, July 2025.ABSTRACT Aim Recent climate‐driven changes in the Antarctic marine environment, marked by regional differences between West and East Antarctica, may alter ecosystem dynamics. As key components of the food web, fish might reflect these changes. This study examines fish biodiversity patterns across four typical Antarctic seas by integrating eDNA analysis
Hai Li +9 more
wiley +1 more source
Marine Mammal Science, Volume 41, Issue 3, July 2025.Abstract Stable isotope analysis of animal tissues is a valuable tool for understanding foraging ecology, habitat use, and developmental changes throughout an animal's life. Stable isotope values of whisker segments offer long‐term data on mammalian foraging, as whisker growth incorporates isotopic signals from the diet and reflects dietary shifts ...
Danelle A. Baronia +3 more
wiley +1 more source
Journal of Geophysical Research: Oceans, Volume 130, Issue 3, March 2025.Abstract The northern Antarctic Peninsula (NAP) region is a highly productive ecosystem that supports a large krill‐based food web. In summer 2006, the NAP region had substantially elevated phytoplankton biomass, with surface chlorophyll‐a concentrations that reached the greatest level during 2001–2023.
Suwen Ye +6 more
wiley +1 more source