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MODELING AGE‐SPECIFIC MORTALITY FOR MARINE MAMMAL POPULATIONS
A method is presented for estimating age-specific mortality based on minimal information: a model life table and an estimate of longevity. This approach uses expected patterns of mammalianExpand
Quasi-Poisson vs. negative binomial regression: how should we model overdispersed count data?
TLDR
A dramatic difference on estimating abundance of harbor seals when using quasi-Poisson vs. negative binomial regression is presented and explained in light of the different weighting used in each regression method. Expand
Seasonal home ranges and fidelity to breeding sites among ringed seals
TLDR
The restricted movements of ringed seals during the ice-bound season—including the breeding season—limits their foraging activities for most of the year and may minimize gene flow within the species. Expand
Arctic marine mammal population status, sea ice habitat loss, and conservation recommendations for the 21st century
TLDR
Recommendations for effective AMM conservation are maintained and improved by local, federal, and international partners; recognize spatial and temporal variability in AMM subpopulation response to climate change; implement monitoring programs with clear goals; mitigate cumulative impacts of increased human activity; and recognize the limits of current protected species legislation. Expand
Hunting and social behaviour of leopard seals (Hydrurga leptonyx) at Seal Island, South Shetland Islands, Antarctica
TLDR
Leopard seals used several methods to catch Antarctic fur seal pups Arctocephalus gazella and chinstrap penguins Pygoscelis antarctica, and individuals showed different hunting styles and hunting success. Expand
THE ABUNDANCE OF HARBOR SEALS IN THE GULF OF ALASKA
The abundance of harbor seals (Phoca vitulina richardii) has declined in recent decades at several Alaska locations. The causes of these declines are unknown, but there is concern about the status ofExpand
Foraging modes of chinstrap penguins: contrasts between day and night
TLDR
The effects of daily cycles in light intensity on visual predators are studied by examining the duration and timing of chinstrap penguins' PjrgosceUs antarctica foraging trips and the size, composition, and timed of their meals. Expand
A top–down, multidisciplinary study of the structure and function of the pack-ice ecosystem in the eastern Ross Sea, Antarctica
We used a top–down, multidisciplinary approach to examine the physical and biological environment of the pack ice of the eastern Ross Sea (approximately 125–170°W) during the austral summer ofExpand
Reaction of Harbor Seals to Cruise Ships
Abstract The largest aggregations of harbor seals (Phoca vitulina) in Alaska, USA, haul out on floating ice in tidewater glacial fjords. Seals use these fjords in peak numbers during the criticalExpand
The Barents and Chukchi Seas: Comparison of two Arctic shelf ecosystems
Abstract This paper compares and contrasts the ecosystems of the Barents and Chukchi Seas. Despite their similarity in a number of features, the Barents Sea supports a vast biomass of commerciallyExpand
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