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Discontinuous change in ice cover in Hudson Bay in the 1990s and some consequences for marine birds and their prey

PUBLISHED | 2012 in Ices Journal of Marine Science [IF: 2.76]
DOI | 10.1093/icesjms/fss040
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References44
Changing Sea Ice Conditions in Hudson Bay, 1980–2005
Klaus P. Hochheim9
Estimated H-index: 9
(University of Manitoba),
David G. Barber37
Estimated H-index: 37
(University of Manitoba),
Jennifer V. Lukovich11
Estimated H-index: 11
(University of Manitoba)
Ref 26Cited 20 Download Pdf Cite this paper Add Collection
Marine Ecosystems and Global Change
Manuel Barange35
Estimated H-index: 35
,
Roger P. Harris46
Estimated H-index: 46
The ocean is a vital component of the metabolism of the Earth and plays a key role in global change. In fact, the oceans cover so much of the Earth's surface that our planet has been described as the Water Planet, and it could be argued that its most extensive ecosystems are marine. Marine ecosystems are inextricably involved in the physical, chemical, biological and societal processes of global c...
Cited 80 Download Pdf Cite this paper Add Collection
Trends and variability in summer sea ice cover in the Canadian Arctic based on the Canadian Ice Service Digital Archive
Steven L. Howell3
Estimated H-index: 3
(University of Calgary),
Adrienne Tivy8
Estimated H-index: 8
(University of Calgary),
Bea Alt7
Estimated H-index: 7
... (5 others)
Cited 8 Source Add Collection
Atmospheric forcing of sea ice in Hudson Bay during the fall period, 1980-2005
K. P. Hochheim1
Estimated H-index: 1
(University of Manitoba),
David G. Barber37
Estimated H-index: 37
(University of Manitoba)
[1] The principal objective of this study is to describe the autumn sea ice regime of Hudson Bay in the context of atmospheric forcing from 1980 to 2005. Both gridded Canadian Ice Service (CIS) data and Passive Microwave (PMW) data are used to examine the freezeup period for weeks of year (WOY) 43–52. Sea ice concentration (SIC) anomalies reveal statistically significant trends, ranging from −23.3...
Ref 39Cited 39 Download Pdf Cite this paper Add Collection
Tropical Atlantic sea surface temperature variability and its relation to El Niño-Southern Oscillation
David B. Enfield28
Estimated H-index: 28
(National Oceanic and Atmospheric Administration),
Dennis A. Mayer8
Estimated H-index: 8
(National Oceanic and Atmospheric Administration)
Past analyses of tropical Atlantic sea surface temperature variability have suggested a dipole behavior between the northern and southern tropics, across the Intertropical Convergence Zone (ITCZ). By analyzing an improved 43-year (1950-1992) record of SST (Smith et al., 1996) and other data derived from the Comprehensive Ocean-Atmosphere Data Set (COADS), it is shown that the regions north and sou...
Ref 30Cited 522 Download Pdf Cite this paper Add Collection
Movements and wintering areas of breeding age Thick-billed Murre Uria lomvia from two colonies in Nunavut, Canada
2011 in Marine Biology [IF: 2.14]
Anthony J. Gaston41
Estimated H-index: 41
(Carleton University),
Paul A. Smith18
Estimated H-index: 18
(Carleton University),
Laura McFarlane Tranquilla11
Estimated H-index: 11
(Memorial University of Newfoundland)
... (7 others)
The non-breeding movements of marine birds were poorly known until recently, but this information is essential to understanding the risk to different geographical populations from events on the wintering grounds. We tracked the migration routes and wintering areas of Thick-billed Murre Uria lomvia from two breeding colonies in eastern Canada: Coats Island in northern Hudson Bay and The Minarets, B...
Ref 38Cited 30 Download Pdf Cite this paper Add Collection
Thick-billed Murre (Uria lomvia)
Anthony J. Gaston41
Estimated H-index: 41
(Canadian Wildlife Service),
J. Mark Hipfner18
Estimated H-index: 18
(Memorial University of Newfoundland),
A. Poole54
Estimated H-index: 54
(University of Sydney)
... (1 others)
Ref 10Cited 75 Source Cite this paper Add Collection
Antarctic sea ice variability and trends, 1979–2010
Claire L. Parkinson38
Estimated H-index: 38
(Goddard Space Flight Center),
Donald J. Cavalieri36
Estimated H-index: 36
(Goddard Space Flight Center)
Analyses of 32 yr (1979–2010) of Arctic sea ice extents and areas derived from satellite passive microwave radiometers are presented for the Northern Hemisphere as a whole and for nine Arctic regions. There is an overall negative yearly trend of −51.5 ± 4.1 × 10 3 km 2 yr −1 (−4.1 ± 0.3% decade −1 ) in sea ice extent for the hemisphere. The yearly sea ice extent trends for the individual Arctic re...
Ref 62Cited 367 Download Pdf Cite this paper Add Collection
Atmospheric forcing of sea ice in Hudson Bay during the spring period, 1980–2005
2011 in Journal of Marine Systems [IF: 2.44]
Klaus P. Hochheim9
Estimated H-index: 9
(University of Manitoba),
Jennifer V. Lukovich11
Estimated H-index: 11
(University of Manitoba),
David G. Barber37
Estimated H-index: 37
(University of Manitoba)
Abstract In this study we show recent trends in sea ice concentration (SIC) and sea ice extent (SIE) in Hudson Bay (HB) using Canadian Ice Service (CIS) data and passive microwave (PMW) data for the spring period, week of year (WOY) 24–30. Reductions in sea ice concentration and sea ice extent are examined in light of thermodynamic and dynamic forcing of sea ice. Results show surface air temperatu...
Ref 27Cited 33 Source Cite this paper Add Collection
The diet of Thick-billed Murres (Uria lomvia) in west Hudson Strait and northeast Hudson Bay
1985 in Canadian Journal of Zoology [IF: 1.35]
Anthony J. Gaston41
Estimated H-index: 41
(Carleton University),
D. G. Noble4
Estimated H-index: 4
We collected feeding adult Thick-billed Murres at several different localities within the foraging range of the colonies at Digges Sound through the breeding seasons in 1980, 1981, and 1982. Examination of prey remains from the stomach and foregut showed that the majority of birds contained prey covering a range of sizes from 0.01 to 47 g wet weight at ingestion. The total energy equivalent of pre...
Cited 26 Source Cite this paper Add Collection
Cited by27
Seabird diet changes in northern Hudson Bay, 1981-2013, reflect the availability of schooling prey
2014 in Marine Ecology Progress Series [IF: 2.29]
Anthony J. Gaston41
Estimated H-index: 41
(Carleton University),
Kyle H. Elliott23
Estimated H-index: 23
(McGill University)
Ongoing climate change is altering Arctic marine ecosystems with major conse- quences for food-webs. Seabirds, by foraging over large marine areas but returning regularly to their breeding colonies, provide a good medium for tracking such changes. We studied the prey delivered to nestling thick-billed murres Uria lomvia at a colony in northern Hudson Bay, Canada, over the period 1981−2013. During ...
Ref 61Cited 9 Download Pdf Cite this paper Add Collection
Ice bridging as a dispersal mechanism for Arctic terrestrial vertebrates and the possible consequences of reduced sea ice cover
2012 in Biodiversity
Anthony J. Gaston41
Estimated H-index: 41
(Carleton University),
Maria Gavrilo1
Estimated H-index: 1
,
Christine Eberl2
Estimated H-index: 2
(Carleton University)
The dispersal abilities of terrestrial mammals are severely constrained by water crossings, resulting in islands generally supporting less diverse mammal faunas than similar continental areas. In ice-affected Arctic regions, seasonal or permanent ice cover provides a bridging mechanism for dispersal, allowing water gaps to be crossed more rapidly and with less energy cost than is entailed in swimm...
Ref 58Cited 3 Source Cite this paper Add Collection
The influence of weather and lemmings on spatiotemporal variation in the abundance of multiple avian guilds in the arctic.
2014 in PLOS ONE [IF: 2.81]
Barry G. Robinson6
Estimated H-index: 6
(University of Alberta),
Alastair Franke7
Estimated H-index: 7
(University of Alberta),
Andrew E. Derocher5
Estimated H-index: 5
(University of Alberta)
Climate change is occurring more rapidly in the Arctic than other places in the world, which is likely to alter the distribution and abundance of migratory birds breeding there. A warming climate can provide benefits to birds by decreasing spring snow cover, but increases in the frequency of summer rainstorms, another product of climate change, may reduce foraging opportunities for insectivorous b...
Ref 105Cited 6 Download Pdf Cite this paper Add Collection
Changes in Food Web Structure Alter Trends of Mercury Uptake at Two Seabird Colonies in the Canadian Arctic
Birgit M. Braune33
Estimated H-index: 33
(Carleton University),
Anthony J. Gaston41
Estimated H-index: 41
(Carleton University),
Keith A. Hobson61
Estimated H-index: 61
(Canadian Wildlife Service)
... (2 others)
Arctic ecosystems are changing in response to climate change and some Arctic food web structures are being affected in ways which may have potential consequences for the biomagnification of environmental contaminants. Here, we examined how a shift in diet of an Arctic seabird resulted in a change of trophic position and how that change affected exposure to mercury over time. The thick-billed murre...
Ref 41Cited 20 Source Cite this paper Add Collection
Arctic Sea Ice in Transformation: A Review of Recent Observed Changes and Impacts on Biology and Human Activity
2014 in Reviews of Geophysics [IF: 12.34]
Walter N. Meier21
Estimated H-index: 21
(Goddard Space Flight Center),
Greta K. Hovelsrud1
Estimated H-index: 1
(Nordland Research Institute),
Bob van Oort10
Estimated H-index: 10
(University of Tromsø)
... (7 others)
Sea ice in the Arctic is one of the most rapidly changing components of the global climate system. Over the past few decades, summer areal extent has declined over 30%, and all months show statistically significant declining trends. New satellite missions and techniques have greatly expanded information on sea ice thickness, but many uncertainties remain in the satellite data and long-term records...
Ref 244Cited 88 Source Cite this paper Add Collection
Could the planktonic stages of polar cod and Pacific sand lance compete for food in the warming Beaufort Sea
2014 in Ices Journal of Marine Science [IF: 2.76]
Marianne Falardeau2
Estimated H-index: 2
(Laval University),
Dominique Robert13
Estimated H-index: 13
(Memorial University of Newfoundland),
Louis Fortier36
Estimated H-index: 36
(Laval University)
The boreal Pacific sand lance (Ammodytes hexapterus) was recently detected in southeastern Beaufort Sea (Canadian Arctic), numbering as the second most abundant ichthyoplankton species after the polar cod (Boreogadus saida) in 2011. We contrast the hatching periods, growth, prey selectivity, and feeding success of the planktonic stages of the two species. Polar cod hatched from January to mid-July...
Ref 49Cited 14 Download Pdf Cite this paper Add Collection
The broad footprint of climate change from genes to biomes to people
2016 in Science [IF: 37.20]
Brett R. Scheffers17
Estimated H-index: 17
(University of Florida),
Luc De Meester49
Estimated H-index: 49
(Katholieke Universiteit Leuven),
Tom C. L. Bridge17
Estimated H-index: 17
(James Cook University)
... (7 others)
Most ecological processes now show responses to anthropogenic climate change. In terrestrial, freshwater, and marine ecosystems, species are changing genetically, physiologically, morphologically, and phenologically and are shifting their distributions, which affects food webs and results in new interactions. Disruptions scale from the gene to the ecosystem and have documented consequences for peo...
Ref 297Cited 48 Download Pdf Cite this paper Add Collection
Demography of an apex predator at the edge of its range: impacts of changing sea ice on polar bears in Hudson Bay.
2016 in Ecological Applications [IF: 4.31]
Nicholas J. Lunn22
Estimated H-index: 22
(University of Alberta),
Sabrina Servanty10
Estimated H-index: 10
(Colorado State University),
Eric V. Regehr16
Estimated H-index: 16
(United States Fish and Wildlife Service)
... (3 others)
Changes in the abundance and distribution of wildlife populations are common consequences of historic and contemporary climate change. Some Arctic marine mammals, such as the polar bear (Ursus maritimus), may be particularly vulnerable to such changes due to the loss of Arctic sea ice. We evaluated the impacts of environmental variation on demographic rates for the Western Hudson Bay (WH), polar b...
Ref 85Cited 20 Source Cite this paper Add Collection
Composition and temporal variation in the diet of beluga whales, derived from stable isotopes
2012 in Marine Ecology Progress Series [IF: 2.29]
Marianne Marcoux9
Estimated H-index: 9
(McGill University),
Bailey C. McMeans15
Estimated H-index: 15
(University of Windsor),
Aaron T. Fisk44
Estimated H-index: 44
(University of Windsor)
... (1 others)
The diet of individuals within a species commonly differs among sex and age classes because of differences in energy requirements and physiological needs. Belugas Delphinapterus leucas show a high level of sexual habitat segregation and dimorphism that could result in differ- ences in diet between the sexes. Here, we used stable isotopes of carbon (δ 13 C) and nitrogen (δ 15 N) from muscle and ski...
Ref 44Cited 22 Download Pdf Cite this paper Add Collection