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2006-08-22 11:18:45 | Hit : 28349 | Vote : 9619 |
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[자료] Home Ranges and Movements of Arctic Fox (Alopex lagopus) in Western Alaska (행동권분석 예1) |
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Home Ranges and Movements of Arctic Fox (Alopex lagopus) in Western Alaska
R. MICHAEL ANTHONY1
(Received 3 January 1996; accepted in revised form 25 February 1997)
ABSTRACT.
During the period from 1985 to 1990, radio collars were attached to 61 arctic foxes (Alopex lagopus) in the coastalregion of the Yukon-Kuskokwim Delta in western Alaska. Radio tracking using hand-held receivers from aircraft and from fixedtowers was conducted to determine daily and seasonal movements of foxes. Intensive radio tracking of 18 foxes from May throughJuly indicated that males used larger areas (x = 10.22 ± 6.18 km2) than females (x = 4.57 ± 1.94 km2) regardless of breeding status.Generally foxes were relocated near (x = 3.4 ± 2.4 km) their summer home ranges during other seasons of the year. There wereno complex social groups of foxes among the marked population. Foxes did not have a definitive preference for any plantcommunity, probably because of the even distribution and abundance of prey throughout all communities. Thirty foxes wererelocated repeatedly during a period of at least 10 months, which included the denning season of one year and the breeding seasonof the next. Of 24 confirmed deaths of collared foxes, 16 were caused by shooting or trapping by local residents and 8 hadunidentified causes. Maximum distance moved between relocations was 48.4 km. Males moved farther from initial capture sitesin the winter following capture than did females, largely because of greater than 20 km movements by two foxes. There were noseasonal differences in movements between males and females.
Key words: Alaska, arctic fox, Alopex lagopus, home range, telemetry
http://pubs.aina.ucalgary.ca/arctic/Arctic50-2-147.pdf |
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151-742 서울특별시 관악구 신림9동 산56-1 서울대학교 수의과대학 85동 802호
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