Winter movements of Arctic foxes in Northern Alaska measured by satellite telemetry
dc.contributor.author | Pamperin, Nathan J. | |
dc.date.accessioned | 2012-03-29T22:08:24Z | |
dc.date.available | 2012-03-29T22:08:24Z | |
dc.date.issued | 2008-12 | |
dc.identifier.uri | http://hdl.handle.net/11122/86 | |
dc.description | Thesis (M.S.) University of Alaska Fairbanks, 2008 | |
dc.description.abstract | We studied winter movements of 37 arctic foxes (Alopex lagopus) collared within a petroleum development area at Prudhoe Bay, Alaska (n = 20), and an undeveloped area in the National Petroleum Reserve-Alaska (NPR-A, n = 17) during the winters of 2004, 2005, and 2006 using satellite telemetry. Comparing Prudhoe Bay and NPR-A, differences in mean movement rates of juveniles was 23.9 ± 2.7 km per duty cycle and 10.6 ± 2.8 km per duty cycle for adults, and mean difference in maximum distance from capture site for juveniles was 265.2 ± 63.2 km and 205.5 ± 128.9 km for adults. Juveniles and adults collared in NPR-A were highly mobile and made long distance movements (up to 782 km) while foxes from Prudhoe Bay remained in or near the oil field throughout winter. Extensive use of sea-ice by three juvenile foxes from NPR-A was documented during the winter of 2005-2006. Three juvenile foxes traveled long distances (904, 1096, and 2757 km) during the winter and remained on the sea-ice for extended periods of time (76, 120, and 156 days). These findings verify the use of sea-ice by arctic foxes and raise concerns that the diminishing ice cover may negatively impact populations by limiting access to marine food sources. We conclude that the oilfields are having a strong effect on the winter movements of arctic fox and suggest differences in movements are likely attributable to the availability of anthropogenic foods at Prudhoe Bay. | en_US |
dc.subject | Arctic fox | en_US |
dc.subject | Prudhoe Bay | en_US |
dc.subject | Alaska | en_US |
dc.title | Winter movements of Arctic foxes in Northern Alaska measured by satellite telemetry | en_US |
dc.type | Thesis | |
dc.type.degree | ms | |
dc.identifier.department | Department of Biology and Wildlife | |
dc.contributor.chair | Follman, Erich H. | |
dc.contributor.committee | Lindberg, Mark S. | |
dc.contributor.committee | Huettmann, Falk | |
dc.contributor.committee | Person, Brian | |
refterms.dateFOA | 2020-03-05T09:34:51Z |
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Biological Sciences
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