Search Results - "Boveng, P"
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Viral emergence in marine mammals in the North Pacific may be linked to Arctic sea ice reduction
Published in Scientific reports (07-11-2019)“…Climate change-driven alterations in Arctic environments can influence habitat availability, species distributions and interactions, and the breeding,…”
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2
Re-examination of population structure in Arctic ringed seals using DArTseq genotyping
Published in Endangered species research (01-01-2021)“…Although Arctic ringed seals Phoca hispida hispida are currently abundant and broadly distributed, their numbers are projected to decline substantially by the…”
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3
Spatial modeling of haul-out site use by harbor seals in Cook Inlet, Alaska
Published in Marine ecology. Progress series (Halstenbek) (04-07-2007)“…Harbor sealsPhoca vitulinahaul out on land to give birth to and rear their pups, rest, escape aquatic predation and molt. The choice of a haul-out site is…”
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4
Population Growth of Antarctic Fur Seals: Limitation by a Top Predator, the Leopard Seal?
Published in Ecology (Durham) (01-12-1998)“…Antarctic fur seals (Arctocephalus gazella) in the South Shetland Islands are recovering from 19th-century exploitation more slowly than the main population at…”
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Modeling ringed seal Pusa hispida habitat and lair emergence timing in the eastern Bering and Chukchi Seas
Published in Endangered species research (01-01-2021)“…Ringed seals Pusa hispida are reliant on snow and sea ice for denning, and a better understanding of ringed seal habitat selection and timing of emergence from…”
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Evaluation of Age- and Sex-Dependent Rates of Tag Loss in Southern Elephant Seals
Published in The Journal of wildlife management (01-04-2000)“…Rates of tag loss were estimated in a long-term tagging study of southern elephant seals (Mirounga leonina) to assess the potential for bias in estimates of…”
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7
Quasi-Poisson vs. Negative Binomial Regression: How Should We Model Overdispersed Count Data?
Published in Ecology (Durham) (01-11-2007)“…Quasi-Poisson and negative binomial regression models have equal numbers of parameters, and either could be used for overdispersed count data. While they often…”
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MONITORING THE PREY-FIELD OF MARINE PREDATORS: COMBINING DIGITAL IMAGING WITH DATALOGGING TAGS
Published in Marine mammal science (01-07-2002)“…There is increasing interest in the diving behavior of marine mammals. However, identifying foraging among recorded dives often requires several assumptions…”
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THE ABUNDANCE OF HARBOR SEALS IN THE GULF OF ALASKA
Published in Marine mammal science (01-01-2003)“…The abundance of harbor seals (Phoca vitulina richardii) has declined in recent decades at several Alaska locations. The causes of these declines are unknown,…”
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STABILITY IN THE PROPORTION OF HARBOR SEALS HAULED OUT UNDER LOCALLY IDEAL CONDITIONS
Published in Marine mammal science (01-10-2003)“…We monitored the haul‐out behavior of 68 radio‐tagged harbor seals (Phoca vitulina) during the molt season at two Alaskan haul‐out sites (Grand Island,…”
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Provisioning strategies of Antarctic fur seals and chinstrap penguins produce different responses to distribution of common prey and habitat
Published in Marine ecology. Progress series (Halstenbek) (23-08-2007)“…Central-place foragers that must return to a breeding site to deliver food to offspring are faced with trade-offs between prey patch quality and distance from…”
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Foraging modes of chinstrap penguins: contrasts between day and night
Published in Marine ecology. Progress series (Halstenbek) (07-05-1998)“…Penguins rely on vision to travel and hunt at sea. Vision in marine predators, particularly those hunting phototactic prey under a broad range of light…”
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13
ACCOMMODATING SPECIES IDENTIFICATION ERRORS IN TRANSECT SURVEYS
Published in Ecology (Durham) (01-11-2013)“…Ecologists often use transect surveys to estimate the density and abundance of animal populations. Errors in species classification are often evident in such…”
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14
A Bayesian hierarchical model of Antarctic fur seal foraging and pup growth related to sea ice and prey abundance
Published in Ecological applications (01-03-2012)“…We created a Bayesian hierarchical model (BHM) to investigate ecosystem relationships between the physical ecosystem (sea ice extent), a prey measure (krill…”
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Uncommon or cryptic? Challenges in estimating leopard seal abundance by conventional but state-of-the-art methods
Published in Deep-sea research. Part I, Oceanographic research papers (01-04-2008)“…The method traditionally used to estimate pack-ice seal abundance employs sighting surveys from ships or aircraft to estimate the number of seals hauled out on…”
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16
Biomass energy from crop and forest residues
Published in Science (American Association for the Advancement of Science) (05-06-1981)“…Residues remaining after the harvest of crop and forestry products are being proposed as a substantial energy source for the nation. An estimated 22 percent of…”
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Foraging Behavior and Reproductive Success in Chinstrap Penguins: The Effects of Transmitter Attachment (Conducta de Forrajeo y Éxito Reproductivo en Pygoscelis antarctica: Efecto de Radiotransmisores)
Published in Journal of field ornithology (1996)“…The effects of radio transmitter attachment on foraging trip duration and reproductive success of breeding Chinstrap Penguins (Pygoscelis antarctica) were…”
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Seasonal sea ice dynamics drive movement and migration of juvenile bearded seals Erignathus barbatus
Published in Marine ecology. Progress series (Halstenbek) (30-07-2018)“…We analyzed how juvenile bearded seals Erignathus barbatus use and move through sea ice and consider how future ice conditions might affect bearded seal…”
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Hunting and social behaviour of leopard seals (Hydrurga leptonyx) at Seal Island, South Shetland Islands, Antarctica
Published in Journal of zoology (1987) (01-09-1999)“…The hunting behaviour of leopard seals Hydrurga leptonyx was monitored opportunistically at Seal Island, South Shetland Islands, during the austral summers…”
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Ringed and bearded seal densities in the eastern Chukchi Sea, 1999-2000
Published in Polar biology (01-10-2005)“…Aerial surveys were conducted in 1999 and 2000 to estimate the densities of ringed (Phoca hispida) and bearded (Erignathus barbatus) seals in the eastern…”
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