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442 results on '"Merrill, Evelyn"'

104. Identifying movement states from location data using cluster analysis

Author

Moorter, Bram Van, Visscher, Darcy R., Jerde, Christopher L., Frair, Jacqueline L., and Merrill, Evelyn H.

Subjects
Cluster analysis -- Usage, Red deer -- Protection and preservation, Global Positioning System -- Usage, Animal locomotion -- Research, Wildlife management -- Methods, Global Positioning System, Zoology and wildlife conservation
Published
2010

106. Broad and fine-scale genetic analysis of white-tailed deer populations: estimating the relative risk of chronic wasting disease spread

Author

Cullingham, Catherine I, Merrill, Evelyn H, Pybus, Margo J, Bollinger, Trent K, Wilson, Gregory A, and Coltman, David W

Subjects
prion, white-tailed deer, chronic wasting disease, population genetics, wildlife management, Original Articles, Odocoileus virginianus, spatial genetic structure
Abstract

Chronic wasting disease is a transmissible spongiform encephalopathy of cervids, similar to sheep scrapie that has only recently been detected in wild populations of white-tailed deer (Odocoileus virginianus) and mule deer (Odocoileus hemionus hemionus) in western Canada. Relatively little is known about local transmission dynamics of the disease or the potential for long-distance spread. We analysed the population genetic structure of over 2000 white-tailed deer sampled from Alberta, British Columbia, and Saskatchewan using microsatellite profiles and mtDNA sequencing to assess the relative risk of disease spread. There was very little differentiation among subpopulations and a weak trend of increasing differentiation with geographic distance. This suggests that the potential for long-distance disease spread through the dispersal of infected individuals is possible, yet the risk of spread should gradually diminish with distance from infection foci. Within subpopulations, females were more related than expected by chance (R > 0) within a radius of approximately 500 m. Sex-biased philopatry and social interactions among related females may facilitate local disease transmission within social groups. Local herd reduction may therefore be an effective tool for reducing the disease prevalence when implemented at the appropriate spatial scale.

Published
2010

112. Reviewers for 2015

Author

Krausman, Paul R., primary, Merrill, Evelyn H., additional, Cox, Allison S., additional, and Knipps, Anna C. S., additional

Published
2016
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113. What Taxa Are Appropriate for theJournal?

Author

Cox Allison and Merrill Evelyn

Subjects
Taxon, Geography, Ecology, General Earth and Planetary Sciences, Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation, General Environmental Science
Published
2015

114. How many routes lead to migration? Comparison of methods to assess and characterize migratory movements

Author

Cagnacci, Francesca, primary, Focardi, Stefano, additional, Ghisla, Anne, additional, van Moorter, Bram, additional, Merrill, Evelyn H., additional, Gurarie, Eliezer, additional, Heurich, Marco, additional, Mysterud, Atle, additional, Linnell, John, additional, Panzacchi, Manuela, additional, May, Roel, additional, Nygård, Torgeir, additional, Rolandsen, Christer, additional, and Hebblewhite, Mark, additional

Published
2015
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139. Empirical Estimation of R0 for Unknown Transmission Functions: The Case of Chronic Wasting Disease in Alberta.

Author

Potapov, Alex, Merrill, Evelyn, Pybus, Margo, and Lewis, Mark A.

Subjects
*WASTING syndrome, *CHRONIC diseases, *DEER, *EPIDEMICS, *DISEASE prevalence, *INFECTIOUS disease transmission, *DISEASES
Abstract

We consider the problem of estimating the basic reproduction number R0 from data on prevalence dynamics at the beginning of a disease outbreak. We derive discrete and continuous time models, some coefficients of which are to be fitted from data. We show that prevalence of the disease is sufficient to determine R0. We apply this method to chronic wasting disease spread in Alberta determining a range of possible R0 and their sensitivity to the probability of deer annual survival. [ABSTRACT FROM AUTHOR]

Published
2015
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147. Removing GPS collar bias in habitat selection studies

Author

Frair, Jacqueline L., primary, Nielsen, Scott E., additional, Merrill, Evelyn H., additional, Lele, Subhash R., additional, Boyce, Mark S., additional, Munro, Robin H. M., additional, Stenhouse, Gordon B., additional, and Beyer, Hawthorne L., additional

Published
2004
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149. Chapter VII.3: Wildlife Management.

Author

Boyce, Mark S., Merrill, Evelyn H., and Sinclair, Anthony R. E.

Subjects
ECOSYSTEM services, WILDLIFE management, PREDATION
Abstract

Wildlife populations occur within both protected areas and human-dominated ecosystems. In both cases, populations are monitored to ensure they coexist with other species in their habitats in a stable way or are harvested as a resource in a sustainable fashion. Management may be limited to monitoring or it may involve active change in the ecosystem. Conditions that require active management include altering competition and predation effects, adjusting habitats, and counteracting effects of exotic species. Ecosystems exhibit complex behavior such as the rapid switch from one set of species to another when the environment changes gradually, a phenomenon called multiple states. Such rapid changes may require active management to ensure the persistence of valued species. [ABSTRACT FROM PUBLISHER]

Published
2009

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