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| Title | Can Foraging Ecology Drive the Evolution of Body Size in a Diving Endotherm? | Type | Journal Article | ||
| Year | 2013 | Publication | PLOS ONE | Abbreviated Journal | |
| Volume | 8 | Issue | 2 | Pages | e56297 |
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Abstract  |
Within a single animal species, different morphs can allow for differential exploitation of foraging niches between populations, while sexual size dimorphism can provide each sex with access to different resources. Despite being potentially important agents of evolution, resource polymorphisms, and the way they operate in wild populations, remain poorly understood. In this study, we examine how trophic factors can select for different body sizes between populations and sexes in a diving endotherm. Dive depth and duration are positively related to body size in diving birds and mammals, a relationship explained by a lower mass-specific metabolic rate and greater oxygen stores in larger individuals. Based on this allometry, we predict that selection for exploiting resources situated at different depths can drive the evolution of body size in species of diving endotherms at the population and sexual level. To test this prediction, we studied the foraging ecology of Blue-eyed Shags, a group of cormorants with male-biased sexual size dimorphism from across the Southern Ocean. We found that mean body mass and relative difference in body mass between sexes varied by up to 77% and 107% between neighbouring colonies, respectively. Birds from colonies with larger individuals dived deeper than birds from colonies with smaller individuals, when accounting for sex. In parallel, males dived further offshore and deeper than females and the sexual difference in dive depth reflected the level of sexual size dimorphism at each colony. We argue that body size in this group of birds is under intense selection for diving to depths of profitable benthic prey patches and that, locally, sexual niche divergence selection can exaggerate the sexual size dimorphism of Blue-eyed Shags initially set up by sexual selection. Our findings suggest that trophic resources can select for important geographic micro-variability in body size between populations and sexes. | ||||
| Programme | 394 | ||||
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| ISSN | 1932-6203 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | yes | |||
| Call Number | Serial | 4482 | |||
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| Title | Ocean sentinel albatrosses locate illegal vessels and provide the first estimate of the extent of nondeclared fishing | Type | Journal | ||
| Year | 2020 | Publication | Proceedings of the National Academy of Sciences | Abbreviated Journal | |
| Volume | 117 | Issue | 6 | Pages | 3006-3014 |
| Keywords | bio-logging conservation illegal fisheries seabird vessel attraction | ||||
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| Programme | 109 | ||||
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| ISSN | 0027-8424, 1091-6490 | ISBN | Medium | ||
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| Notes | Approved | yes | |||
| Call Number | Serial | 7684 | |||
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| Year | 2011 | Publication | Abbreviated Journal | ||
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| Programme | 414 | ||||
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| Notes | Approved | yes | |||
| Call Number | Serial | 1866 | |||
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| Author | Dragon AC, Bar-Hen A, Monestiez P, Guinet C, | ||||
| Title | Horizontal and vertical movements as predictors of foraging success in a marine predator | Type | Journal Article | ||
| Year | 2012 | Publication | Mar Ecol Prog Ser | Abbreviated Journal | Mar. Ecol. Prog. Ser. |
| Volume | 447 | Issue | Pages | 243-257 | |
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| Programme | 109 | ||||
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| ISSN | 0171-8630 | ISBN | Medium | ||
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| Notes | Approved | yes | |||
| Call Number | Serial | 3870 | |||
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| Title | Evidence for an additional planet in the ? Pictoris system | Type | Journal | ||
| Year | 2019 | Publication | Nature Astronomy | Abbreviated Journal | |
| Volume | 3 | Issue | 12 | Pages | 1135-1142 |
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| Programme | 1066 | ||||
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| ISSN | 2397-3366 | ISBN | Medium | ||
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| Notes | Approved | yes | |||
| Call Number | Serial | 7702 | |||
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| Author | F. Domine, M. Barrere, S. Morin | ||||
| Title | The growth of shrubs on high Arctic tundra at Bylot Island: impact on snow physical properties and permafrost thermal regime | Type | Journal | ||
| Year | 2016 | Publication | Biogeosciences | Abbreviated Journal | |
| Volume | 13 | Issue | 23 | Pages | 6471-6486 |
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| Programme | 1042 | ||||
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| ISSN | 1726-4189 | ISBN | 1726-4189 | Medium | |
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| Notes | Approved | yes | |||
| Call Number | Serial | 6906 | |||
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| Title | Glacier inputs influence organic matter composition and prokaryotic distribution in a high Arctic fjord (Kongsfjorden, Svalbard) | Type | Journal | ||
| Year | 2016 | Publication | Journal of marine systems | Abbreviated Journal | |
| Volume | 164 | Issue | Pages | 112-127 | |
| Keywords | Bacteria Biomarkers Biopolymeric carbon Climate change Pigments Polar zones | ||||
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| Programme | 1092 | ||||
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| ISSN | 0924-7963 | ISBN | Medium | ||
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| Notes | Approved | yes | |||
| Call Number | Serial | 8229 | |||
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| Author | Simpson, W. et al. (inc. Law, Raut, Roberts) | ||||
| Title | ALPACA White Paper | Type | Report | ||
| Year | 2019 | Publication | Https://alpaca.community.uaf.edu/ | Abbreviated Journal | |
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| Abstract |
Wintertime air pollution is a serious problem for urban areas and areas affected by industrial activities in the Arctic and sub-Arctic regions. The cause of this pollution is local emissions coupled with poor dispersion caused by strong temperature inversions, yet many uncertainties remain in understanding the physical and chemical processes driving this pollution. In the case of Fairbanks, Alaska, fine particulate matter (PM2.5) concentrations exceed health-based pollution thresholds, requiring action to mitigate this problem. This particulate matter comes from a mix of sources and is likely enhanced by condensation of gaseous precursors, especially under these low temperature conditions and through chemical gas-to-particle conversion processes. Prior Fairbanks studies have shown that wood combustion is the largest single source, but other sources also contribute. Progress on this problem requires research into source apportionment and a better understanding of chemical processing of pollution during cold and dark conditions. The role of meteorology, particularly surface-based inversions also needs study. Therefore, we propose the ALPACA study, which is organized under the international PACES initiative and in coordination with the Pan Eurasian Experiment (PEEX). ALPACA investigates emissions and chemical and meteorological influences on pollution in Fairbanks. In addition to measurements, modeling, laboratory, and health effect studies, outreach efforts are planned. Involvement of citizens is highly desired. The intended outcomes of ALPACA are improved mechanistic understanding of pollution behavior under cold and dark conditions, improved public understanding of the problem, and better-informed pollution mitigation strategies. The ALPACA study will provide a benchmark to inform sister studies at high northern latitudes and assist in understanding air pollution impacts of increasing development in the rapidly changing Arctic. ALPACA will also provide a colder/darker comparison for mid-latitude wintertime pollution studies. |
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| Programme | 1215 | ||||
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| Notes | Approved | yes | |||
| Call Number | Serial | 7548 | |||
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| Title | Historical sea level trends in the Southern Ocean from tide gauges | Type | Conference - International - Poster | ||
| Year | 2008 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | |||
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| Abstract |
William Smith Meeting : Observations and Causes of Sea-Level Changes on Millennial to Decadal Timescales, 1-2 Sept. 2008, London. | ||||
| Programme | 688 | ||||
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| Notes | Approved | yes | |||
| Call Number | Serial | 5169 | |||
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| Author | Juliet Lamb, Jeremy Tornos, Romain Dedet, Hubert Gantelet, Nicolas Keck, Juliette Baron, Marine Bely, Augustin Clessin, Aline Flechet, Amandine Gamble, Thierry Boulinier | ||||
| Title | Hanging out at the club: Breeding status and territoriality affect individual space use, multi-species overlap and pathogen transmission risk at a seabird colony | Type | Journal | ||
| Year | 2023 | Publication | Functional Ecology | Abbreviated Journal | |
| Volume | 37 | Issue | 3 | Pages | 576-590 |
| Keywords | Diomedea amsterdamensis dynamic space utilization floaters foraging infectious disease nonbreeding Stercorarius antarcticus | ||||
| Abstract |
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| Programme | 1151 | ||||
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| ISSN | 1365-2435 | ISBN | Medium | ||
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| Notes | Approved | yes | |||
| Call Number | Serial | 8538 | |||
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