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• W2621300861 abstract "Investigating ecological relationships between predators and their environment is essential to understand the response of marine ecosystems to climate variability and change. This is particularly true in polar regions, where sea ice (a sensitive climate variable) plays a crucial yet highly dynamic and variable role in how it influences the whole marine ecosystem, from phytoplankton to top predators. For mesopredators such as seals, sea ice both supports a rich (under-ice) food resource, access to which depends on local to regional coverage and conditions. Here, we investigate sex-specific relationships between the foraging strategies of southern elephant seals (Mirounga leonina) in winter and spatio-temporal variability in sea ice concentration (SIC) and coverage in East Antarctica. We satellite-tracked 46 individuals undertaking post-moult trips in winter from Kerguelen Islands to the peri-Antarctic shelf between 2004 and 2014. These data indicate distinct general patterns of sea ice usage: while females tended to follow the sea ice edge as it extended northward, the males remained on the continental shelf despite increasing sea ice. Seal hunting time, a proxy of foraging activity inferred from the diving behaviour, was longer for females in late autumn in the outer part of the pack ice, ∼150–370 km south of the ice edge. Within persistent regions of compact sea ice, females had a longer foraging activity (i) in the highest sea ice concentration at their position, but (ii) their foraging activity was longer when there were more patches of low concentration sea ice around their position (either in time or in space; 30 days & 50 km). The high spatio-temporal variability of sea ice around female positions is probably a key factor allowing them to exploit these concentrated patches. Despite lack of information on prey availability, females may exploit mesopelagic finfishes and squids that concentrate near the ice-water interface or within the water column (from diurnal vertical migration) in the pack ice region, likely attracted by an ice algal autumn bloom that sustains an under-ice ecosystem. In contrast, male foraging effort increased when they remained deep within the sea ice (420–960 km from the ice edge) over the shelf. Males had a longer foraging activity (i) in the lowest sea ice concentration at their position, and (ii) when there were more patches of low concentration sea ice around their position (either in time or in space; 30 days & 50 km) presumably in polynyas or flaw leads between land fast and pack ice. This provides access to zones of enhanced resources in autumn or in early spring such as polynyas, the Antarctic shelf and slope. Our results suggest that some seals utilized a highly sea ice covered environment, which is key for their foraging effort, sustaining or concentrating resources during winter." @default.
• W2621300861 created "2017-06-09" @default.
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• W2621300861 date "2017-08-01" @default.
• W2621300861 modified "2023-10-09" @default.
• W2621300861 title "Under the sea ice: Exploring the relationship between sea ice and the foraging behaviour of southern elephant seals in East Antarctica" @default.
• W2621300861 cites W1487695701 @default.
• W2621300861 cites W1487837906 @default.
• W2621300861 cites W1563869035 @default.
• W2621300861 cites W1578054667 @default.
• W2621300861 cites W1579115699 @default.
• W2621300861 cites W1608922593 @default.
• W2621300861 cites W1901212959 @default.
• W2621300861 cites W1908506551 @default.
• W2621300861 cites W1967818937 @default.
• W2621300861 cites W1970668771 @default.
• W2621300861 cites W1970834152 @default.
• W2621300861 cites W1974281305 @default.
• W2621300861 cites W1979583508 @default.
• W2621300861 cites W1989530726 @default.
• W2621300861 cites W1990621216 @default.
• W2621300861 cites W1993435459 @default.
• W2621300861 cites W1998346087 @default.
• W2621300861 cites W2002520997 @default.
• W2621300861 cites W2004623363 @default.
• W2621300861 cites W2005114199 @default.
• W2621300861 cites W2007230657 @default.
• W2621300861 cites W2011027452 @default.
• W2621300861 cites W2015827190 @default.
• W2621300861 cites W2016381904 @default.
• W2621300861 cites W2017729094 @default.
• W2621300861 cites W2018753648 @default.
• W2621300861 cites W2019655958 @default.
• W2621300861 cites W2020383623 @default.
• W2621300861 cites W2021497134 @default.
• W2621300861 cites W2028246023 @default.
• W2621300861 cites W2031681060 @default.
• W2621300861 cites W2031703917 @default.
• W2621300861 cites W2033117946 @default.
• W2621300861 cites W2035130768 @default.
• W2621300861 cites W2037002068 @default.
• W2621300861 cites W2044151901 @default.
• W2621300861 cites W2057931513 @default.
• W2621300861 cites W2059539229 @default.
• W2621300861 cites W2060679957 @default.
• W2621300861 cites W2067398480 @default.
• W2621300861 cites W2076006581 @default.
• W2621300861 cites W2077115990 @default.
• W2621300861 cites W2078023728 @default.
• W2621300861 cites W2079866945 @default.
• W2621300861 cites W2080632216 @default.
• W2621300861 cites W2085348633 @default.
• W2621300861 cites W2088401263 @default.
• W2621300861 cites W2089315251 @default.
• W2621300861 cites W2092657715 @default.
• W2621300861 cites W2095513522 @default.
• W2621300861 cites W2106748458 @default.
• W2621300861 cites W2108366645 @default.
• W2621300861 cites W2108533179 @default.
• W2621300861 cites W2108835651 @default.
• W2621300861 cites W2109515045 @default.
• W2621300861 cites W2111162067 @default.
• W2621300861 cites W2111684210 @default.
• W2621300861 cites W2117057211 @default.
• W2621300861 cites W2119937200 @default.
• W2621300861 cites W2121947862 @default.
• W2621300861 cites W2124749332 @default.
• W2621300861 cites W2126397665 @default.
• W2621300861 cites W2134393967 @default.
• W2621300861 cites W2134502411 @default.
• W2621300861 cites W2134522878 @default.
• W2621300861 cites W2138980383 @default.
• W2621300861 cites W2140177471 @default.
• W2621300861 cites W2140281239 @default.
• W2621300861 cites W2140432741 @default.
• W2621300861 cites W2140954091 @default.
• W2621300861 cites W2142394595 @default.
• W2621300861 cites W2144318738 @default.
• W2621300861 cites W2146160527 @default.
• W2621300861 cites W2146974754 @default.
• W2621300861 cites W2148203432 @default.
• W2621300861 cites W2151675115 @default.
• W2621300861 cites W2154091310 @default.
• W2621300861 cites W2155081168 @default.
• W2621300861 cites W2158681969 @default.
• W2621300861 cites W2160177903 @default.
• W2621300861 cites W2160267118 @default.

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