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Title:Social Organization, Natal Dispersal, Survival, and Cause -Specific Mortality of Red Foxes in Agricultural and Urban Areas of East-Central Illinois
Author(s):Gosselink, Todd Eric
Doctoral Committee Chair(s):Warner, Richard E.
Department / Program:Natural Resrouces and Environmental Sciences
Discipline:Natural Resrouces and Environmental Sciences
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Agriculture, Forestry and Wildlife
Abstract:Survival was influenced the most by environmental and body condition. Adult foxes with low (0--20%) and high (80--100%) row-crop percentages, and higher capture weights experienced higher survival. Juveniles from larger litters, low capture body fat, and fewer dispersal days had higher survival. Adult survival (0.35) was higher than juvenile survival (0.24). Yearly urban survival varied due to cyclic outbreaks of sarcoptic mange, resulting in survival ranging from 0.10 (mange prevalent) to 0.83 (no mange) indifferent years. Mange was the major source of urban fox mortality, followed by road kill. Road kill and coyote predation mortalities were major sources for rural foxes. Urban areas may provide refugia for red foxes in North America where reestablished coyote populations persist at high densities.
Issue Date:2002
Type:Text
Language:English
Description:111 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2002.
URI:http://hdl.handle.net/2142/83086
Other Identifier(s):(MiAaPQ)AAI3069998
Date Available in IDEALS:2015-09-25
Date Deposited:2002


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