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View article: Corticosterone elevation is associated with rapid, sex-specific increases in food-acquisition behaviors in free-living seabird chicks
Corticosterone elevation is associated with rapid, sex-specific increases in food-acquisition behaviors in free-living seabird chicks Open
The energetic consequences of behaviors may rapidly alter glucocorticoid levels, and glucocorticoids are assumed to redirect behavioral responses to stimuli in ways that increase fitness. We investigated these relationships in young seabir…
View article: Corticosterone release in very young siblicidal seabird chicks (<i>Rissa tridactyla</i>) is sensitive to environmental variability and responds rapidly and robustly to external challenges
Corticosterone release in very young siblicidal seabird chicks (<i>Rissa tridactyla</i>) is sensitive to environmental variability and responds rapidly and robustly to external challenges Open
In birds, patterns of development of the adrenocortical response to stressors vary among individuals, types of stressors, and species. Since there are benefits and costs of exposure to elevated glucocorticoids, this variation is presumably…
View article: Geolocators, stable isotopes, and citizen science identify migratory timing, route, and spring molt of Smith’s Longspurs
Geolocators, stable isotopes, and citizen science identify migratory timing, route, and spring molt of Smith’s Longspurs Open
Climate change is having a disproportionate impact on the Arctic. For Arctic breeding birds, basic knowledge of their annual cycle, specifically the timing, route, and movement behavior of migration, is needed to understand when and where …
View article: Telomere length correlates with physiological and behavioural responses of a long-lived seabird to an ecologically relevant challenge
Telomere length correlates with physiological and behavioural responses of a long-lived seabird to an ecologically relevant challenge Open
Determinants of individual variation in reallocation of limited resources towards self-maintenance versus reproduction are not well known. We tested the hypothesis that individual heterogeneity in long-term ‘somatic state’ (i) explains var…
View article: The Designated Shipping Avoidance Area Around St. Lawrence Island, Northern Bering Sea, Is not Sufficient to Protect Foraging Habitat of the Island’s Breeding Seabird Community
The Designated Shipping Avoidance Area Around St. Lawrence Island, Northern Bering Sea, Is not Sufficient to Protect Foraging Habitat of the Island’s Breeding Seabird Community Open
One direct consequence of Arctic warming is the expansion of navigable portions of the Arctic Ocean. As a result, vessel traffic and the accompanying threats of spills, strikes and disturbance is intensifying throughout the Arctic. In the …
View article: R code from Telomere length correlates with physiological and behavioural responses of a long-lived seabird to an ecologically relevant challenge
R code from Telomere length correlates with physiological and behavioural responses of a long-lived seabird to an ecologically relevant challenge Open
R code used for statistical analyses and Figs 2-4
View article: Plastic additives and legacy persistent organic pollutants in the preen gland oil of seabirds sampled across the globe
Plastic additives and legacy persistent organic pollutants in the preen gland oil of seabirds sampled across the globe Open
Plastic pollution, and its associated impacts on marine fauna due to chemical contamination, is an area of growing global concern. We analyzed 145 preen gland oil samples from 32 seabird species belonging to 8 families with different forag…
View article: Geolocator tagging links distributions in the non-breeding season to population genetic structure in a sentinel North Pacific seabird
Geolocator tagging links distributions in the non-breeding season to population genetic structure in a sentinel North Pacific seabird Open
We tested the hypothesis that segregation in wintering areas is associated with population differentiation in a sentinel North Pacific seabird, the rhinoceros auklet ( Cerorhinca monocerata ). We collected tissue samples for genetic analys…
View article: Of 11 candidate steroids, corticosterone concentration standardized for mass is the most reliable steroid biomarker of nutritional stress across different feather types
Of 11 candidate steroids, corticosterone concentration standardized for mass is the most reliable steroid biomarker of nutritional stress across different feather types Open
Measuring corticosterone in feathers has become an informative tool in avian ecology, enabling researchers to investigate carry‐over effects and responses to environmental variability. Few studies have, however, explored whether corticoste…
View article: Inter-annual climate variability affects foraging behavior and nutritional state of thick-billed murres breeding in the southeastern Bering Sea
Inter-annual climate variability affects foraging behavior and nutritional state of thick-billed murres breeding in the southeastern Bering Sea Open
Warm oceanographic conditions of the continental shelf regions in the southeastern Bering Sea are associated with drastic increases in the abundance of juvenile walleye pollock Gadus chalcogrammus at shallow depths. We hypothesized that th…
View article: Resource partitioning between sympatric seabird species increases during chick‐rearing
Resource partitioning between sympatric seabird species increases during chick‐rearing Open
Partitioning of resources by competing species of seabirds may increase during periods of food shortages and elevated energy demands. Here, we examined whether food resource partitioning (differential use of foraging habitat or the consump…
View article: Foraging segregation of two congeneric diving seabird species breeding on St. George Island, Bering Sea
Foraging segregation of two congeneric diving seabird species breeding on St. George Island, Bering Sea Open
Subarctic environmental changes are expected to affect the foraging ecology of marine top predators, but the response to such changes may vary among species if they use food resources differently. We examined the characteristics of foragin…
View article: Differential responses of seabirds to environmental variability over 2 years in the continental shelf and oceanic habitats of southeastern Bering Sea
Differential responses of seabirds to environmental variability over 2 years in the continental shelf and oceanic habitats of southeastern Bering Sea Open
Seasonal sea-ice cover has been decreasing in the southeastern Bering Sea shelf, which might affect ecosystem dynamics and availability of food resources to marine top predators breeding in the region. In this study, we investigated the fo…
View article: Foraging segregation of two congeneric diving seabird species (common and thick-billed murres) breeding on St. George Island, Bering Sea
Foraging segregation of two congeneric diving seabird species (common and thick-billed murres) breeding on St. George Island, Bering Sea Open
Sub-arctic environmental changes are expected to affect the ecology of marine top predators. We examined the characteristics of foraging behavior of two sympatric congeneric diving seabirds, common (Uria aalge: hereafter COMU) and thick-bi…
View article: Differential responses of seabirds to inter-annual environmental change in the continental shelf and oceanic habitats of southeastern Bering Sea
Differential responses of seabirds to inter-annual environmental change in the continental shelf and oceanic habitats of southeastern Bering Sea Open
Seasonal sea-ice cover has been decreasing in the southeastern Bering Sea shelf, which might affect ecosystem dynamics and availability of food resources to marine top predators breeding in the region. In this study, we investigated the fo…
View article: Feather corticosterone reveals stress associated with dietary changes in a breeding seabird
Feather corticosterone reveals stress associated with dietary changes in a breeding seabird Open
Changes in climate and anthropogenic pressures might affect the composition and abundance of forage fish in the world's oceans. The junk‐food hypothesis posits that dietary shifts that affect the quality (e.g., energy content) of food avai…
View article: Foraging ecology during nesting influences body size in a pursuit-diving seabird
Foraging ecology during nesting influences body size in a pursuit-diving seabird Open
Causes and consequences of differences in seabird foraging strategies between breeding colonies are not well understood. We tested whether body size of a pursuit-diving seabird, the thick-billed murre Uria lomvia, differs between breeding …