Surveillance for Chronic Wasting Disease and Other Infectious Agents in Mule Deer ('Odocoileus Hemionus') and White-tailed Deer ('Odocoileus Virginianus') in Southern Saskatchewan PDF Download
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Author: Champika Fernando
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Languages : en
Pages :
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Author: Champika Fernando
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Languages : en
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Author: Maria Angelica Dobbin
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Category : Chronic wasting disease
Languages : en
Pages : 0
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Chronic wasting disease (CWD) is a fatal, prion disease of cervids that was first detected in Alberta in 2005. Transmission of CWD occurs by direct contact with an infected individual or via contaminated environments. I investigated the seasonal effects of landscape heterogeneity on direct, sex-specific (same or mixed sex) contacts of individuals within and between groups of mule deer (Odocoileus hemionus) in central eastern Alberta. Using data from collared deer, I determined group membership based on simultaneous movement, pair-wise relatedness from genetic sampling at capture, contact rates based on proximity loggers, and habitat characteristics of dyad (pairs) in space-use overlap based on GPS telemetry. I found that within-group contact rates were several orders of magnitude higher than between-group contacts, contact rates were unrelated to genetic relatedness, and within-group contacts rates were more dependent on the sex of individuals, between-group rates were more influences by habitat. I also determined where seasonal contacts were most likely to occur by comparing habitat characteristics of contact locations to random locations within areas of shared space use. In winter, contacts occurred in areas with higher use by deer, whereas in summer contact locations were less constrained and were more varied between sexes. The exceptions were that contacts were more likely to occur than expected by use in areas of limited woody cover in both winter and summer, less likely to occur in forest-open edges in winter, and closers to roads in summer. Predictions of where contacts occur among within and between-group male dyads in winter and between-group female dyads in summer were the best predictors of CWD risk derived from hunter-harvested infected deer detected during Alberta's CWD surveillance program. My results suggest that the pattern of CWD risk on the landscape is related to areas of deer contact, and that the seasonal, sex-specific contact rates may better inform transmission in spatially explicit models to help guide management strategies for an emergent wildlife disease.
Author:
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Category : Animal populations
Languages : en
Pages : 198
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Author: Krysten L. Schuler
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Category : Chronic wasting disease
Languages : en
Pages : 310
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Author: Martha L. Walker
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Category : Deer
Languages : en
Pages : 62
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352 references, derived from the files of the Index-catalogue of medical and veterinary zoology, the National Parasite Collection, and published papers. Entries are arranged alphabetically by scientific name under general kinds of parasites. Each entry gives the name, deer host, geographic distribution by state or province, and the reference. Includes a listing of literature cited, arranged by authors.
Author: Southeastern Cooperative Wildlife Disease Study (U.S.)
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Category : Wildlife diseases
Languages : en
Pages : 498
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Author: Marc D. Schwabenlander
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Category : Chronic wasting disease
Languages : en
Pages : 19
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"Throughout North America, chronic wasting disease (CWD) has emerged as perhaps the greatest threat to wild cervid populations, including white-tailed deer (Odocoileus virginianus). Documented CWD cases have dramatically increased across the white-tailed deer range since the mid-1990s, including in Minnesota. The results of this study reveal that the variability of CWD pathogenesis, sampling protocol, and testing platform must be considered for the effective detection and management of CWD throughout North America."--Adapted from abstract.
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Category : Chronic wasting disease
Languages : en
Pages : 2
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Collaborative efforts addressing CWD across the country have provided some answers, but much still needs to be done.
Author: Erin Rae Silbernagel
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Category :
Languages : en
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Author: Barry Richard Nobert
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Category : Chronic wasting disease
Languages : en
Pages :
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