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Title |
Leg-attached data loggers do not modify the diving performances of a foot-propelled seabird
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Type |
Journal Article |
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Year |
2009 |
Publication |
Journal of Zoology |
Abbreviated Journal  |
J. Zool. (Lond.) |
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Volume |
279 |
Issue |
3 |
Pages |
294 -297 |
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Keywords |
bio-logging, GLS, impact, data-recorder, seabirds, diving, |
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Abstract |
Abstract Global location sensors (GLS) are increasingly being used to determine animal position at sea. Their small size and weight means that they can be attached to the leg of volant birds with supposedly little impact on the flight ability. However, very few studies have investigated the impact that foot-attached devices may have on the diving ability of foot-propelled seabirds. We compared the diving activity of two groups of free-ranging great cormorants Phalacrocorax carbo carbo, both groups carrying identical time-depth recorders attached to the tail, and one group also having leg-attached GLS. Our results showed that there were no differences between the two groups in any of the diving parameters investigated, at least over the short term. Caution should be exercised when extrapolating to other species, especially those smaller than great cormorants, and also when deploying GLS over longer periods.
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388 |
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Blackwell Publishing Ltd |
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ISSN |
1469-7998 |
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yes |
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Serial |
2096 |
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Title |
Energetic constraints may limit the capacity of visually guided predators to respond to Arctic warming
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Type |
Journal Article |
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Year |
2013 |
Publication |
Journal of Zoology |
Abbreviated Journal |
J. Zool. (Lond.) |
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Volume |
289 |
Issue |
2 |
Pages |
119-126 |
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Keywords |
Phalacrocorax carbo, great cormorant, climate change, temperature, illumination, diving, |
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Abstract |
For many polar species, climate change is likely to result in range contractions and negative population trends. For those species whose distribution is limited by sea ice and cold water, however, polar warming could result in population increases and range expansion. Population increases of great cormorants Phalacrocorax carbo in Greenland are associated with warmer sea surface temperatures, but the actual impact of environmental change on cormorant spatial ecology remains unclear. In the present study, we investigate how Arctic warming is likely to influence the distribution of cormorants in Greenland. Using geolocation data, we show that many individuals that breed above the Arctic Circle migrate south and winter at lower latitude. We then couple estimates of migratory flight costs with a model that predicts daily energy expenditure during winter on the basis of water temperature, ambient illumination during diving, dive depth and day length. This model shows that the most energy efficient strategy predicted for any breeding location is to migrate as far south as possible, and that, for a given wintering location, it is more energetically expensive to breed at high latitude. We argue that cormorants currently undertake a winter migration to escape the polar night and reduce winter energy costs and that their wintering grounds in Greenland will remain largely unchanged under Arctic warming. This is because low levels of ambient illumination during the polar night will continue to restrict foraging opportunities at high latitude during winter. Northward expansion of the breeding range will result in increased energy expenditure associated with long migratory flights, and the cost of such flights may ultimately limit the breeding range of cormorants. Such limitations are likely to represent a general constraint on the capacity of visually guided predators to respond to climate warming, and may limit the predicted poleward range shifts of these species.
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388 |
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1469-7998 |
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yes |
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Serial |
3940 |
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Title |
Energetic constraints may limit the capacity of visually guided predators to respond to Arctic warming
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Type |
Journal Article |
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Year |
2013 |
Publication |
JOURNAL OF ZOOLOGY |
Abbreviated Journal |
J. Zool. (Lond.) |
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Volume |
289 |
Issue |
2 |
Pages |
119-126 |
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Keywords |
climate change, Diving, great Cormorant, illumination, Phalacrocorax carbo, temperature, |
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Abstract |
For many polar species, climate change is likely to result in range contractions and negative population trends. For those species whose distribution is limited by sea ice and cold water, however, polar warming could result in population increases and range expansion. Population increases of great cormorants Phalacrocorax carbo in Greenland are associated with warmer sea surface temperatures, but the actual impact of environmental change on cormorant spatial ecology remains unclear. In the present study, we investigate how Arctic warming is likely to influence the distribution of cormorants in Greenland. Using geolocation data, we show that many individuals that breed above the Arctic Circle migrate south and winter at lower latitude. We then couple estimates of migratory flight costs with a model that predicts daily energy expenditure during winter on the basis of water temperature, ambient illumination during diving, dive depth and day length. This model shows that the most energy efficient strategy predicted for any breeding location is to migrate as far south as possible, and that, for a given wintering location, it is more energetically expensive to breed at high latitude. We argue that cormorants currently undertake a winter migration to escape the polar night and reduce winter energy costs and that their wintering grounds in Greenland will remain largely unchanged under Arctic warming. This is because low levels of ambient illumination during the polar night will continue to restrict foraging opportunities at high latitude during winter. Northward expansion of the breeding range will result in increased energy expenditure associated with long migratory flights, and the cost of such flights may ultimately limit the breeding range of cormorants. Such limitations are likely to represent a general constraint on the capacity of visually guided predators to respond to climate warming, and may limit the predicted poleward range shifts of these species. |
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388 |
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ISSN |
1469-7998 |
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Approved |
yes |
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Call Number |
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Serial |
4367 |
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Journal Article |
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Year |
2014 |
Publication |
JOURNAL OF ZOOLOGY |
Abbreviated Journal |
J. Zool. (Lond.) |
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Volume |
292 |
Issue |
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Pages |
25-30 |
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Programme |
109 |
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ISSN |
0952-8369 |
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yes |
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Call Number |
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Serial |
5101 |
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Author |
Harding A.M.A., Piatt J.F., Byrd G.V., Hatch S.A., Konyukhov N.B.& Golubova E.U. |
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Title |
Variability in colony attendance of crevice nesting Horned Puffins: implications for population monitoring |
Type |
Journal Article |
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Year |
2005 |
Publication |
Journal of wildlife management |
Abbreviated Journal |
J. Wildl. Manage. |
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Volume |
69 |
Issue |
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Pages |
1279-1296 |
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388 |
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0022-541X |
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yes |
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Serial |
3555 |
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Author |
Dabin W. , Beauplet G. & Guinet C. |
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Title |
Response of wild subantarctic fur seal (Arctocephalus tropicalis) females to Ketamine and a Tiletamine-Zolazepam anesthesia. |
Type |
Journal Article |
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Year |
2002 |
Publication |
Journal of wildlife diseases |
Abbreviated Journal |
J. Wildl. Dis. |
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Volume |
38 |
Issue |
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Pages |
846-850 |
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109 |
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ISSN |
0090-3558 |
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Approved |
yes |
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Serial |
2441 |
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Author |
Gelfi J., Chantal J., Phong T.T., Py R. & Boucrault Baralon C. |
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Title |
development of an ELISA for detection of Myxoma virus specific rabbit antibodies: test evaluation for diagnostic applications on vaccinated and wild rabbit sera. |
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Journal Article |
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Year |
1999 |
Publication |
Journal of veterinary diagnostic investigation |
Abbreviated Journal |
J. Vet. Diagn. Invest. |
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Volume |
11 |
Issue |
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Pages |
240-245 |
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276 |
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ISSN |
1040-6387 |
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yes |
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Serial |
959 |
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Author |
Frenot Y., Gloaguen J.C., Cannavacciuolo M. & Bellido A. |
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Title |
Primary succession on glacier forelands in the subantarctic Kerguelen Islands. |
Type |
Journal Article |
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Year |
1998 |
Publication |
Journal of vegetation science |
Abbreviated Journal |
J. Veg. Sci. |
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Volume |
9 |
Issue |
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Pages |
75-84 |
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136 |
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1100-9233 |
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yes |
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Serial |
1055 |
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Author |
Duchene J.C., Bhaud M., Cha J.H. & Nozais C. |
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Title |
Influence of temperature on the marine fauna: what can be expected from a climatic change? |
Type |
Journal Article |
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Year |
1995 |
Publication |
Journal of thermal biology |
Abbreviated Journal |
J. Therm. Biol. |
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Volume |
19 |
Issue |
4 |
Pages |
91-104 |
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195 |
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ISSN |
0306-4565 |
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yes |
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Serial |
1536 |
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Author |
Benhamou S. |
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Title |
Bicoordinate navigation based on non-orthogonal gradient fields. |
Type |
Journal Article |
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Year |
2003 |
Publication |
Journal of theoretical biology |
Abbreviated Journal |
J. Theor. Biol. |
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Volume |
225 |
Issue |
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Pages |
235-239 |
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354 |
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ISSN |
0022-5193 |
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Approved |
yes |
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Call Number |
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Serial |
2590 |
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