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Volume 28, Number 8—August 2022
Research

Association of Environmental Factors with Seasonal Intensity of Erysipelothrix rhusiopathiae Seropositivity among Arctic Caribou

O. Alejandro AleuyComments to Author , Michele Anholt, Karin Orsel, Fabien Mavrot, Catherine A. Gagnon, Kimberlee Beckmen, Steeve D. Côté, Christine Cuyler, Andrew Dobson, Brett Elkin, Lisa-Marie Leclerc, Joëlle Taillon, and Susan Kutz
Author affiliations: University of Notre Dame, Notre Dame, Indiana, USA (O.A. Aleuy); University of Calgary, Calgary, Alberta, Canada (O.A. Aleuy, K. Orsel, F. Mavrot, S. Kutz); One Health at UCalgary, Calgary (M. Anholt); Canada Research Chair on Northern Biodiversity, Université du Québec à Rimouski Centre of Northern Studies and Quebec Center for Biodiversity Science, Rimouski, Quebec, Canada (C.A. Gagnon); Alaska Department of Fish and Game, Fairbanks, Alaska, USA (K. Beckmen); Laval University, Quebec City, Quebec, Canada (S.D. Côté); Greenland Institute of Natural Resources, Nuuk, Greenland (C. Cuyler); Princeton University, Princeton, New Jersey, USA (A. Dobson); Government of the Northwest Territories, Yellowknife, Northwest Territories, Canada (B. Elkin); Government of Nunavut, Kugluktuk, Nunavut, Canada (L.-M. Leclerc); Government of Quebec, Quebec City (J. Taillon)

Main Article

Table 1

Components used as climate indices to characterize snowing and icing events during the fall, winter, and spring seasonal ranges in the caribou territorial ranges of 4 Western Arctic herds during 1985–2014*

Event Variable name Description of component
Snowing events
 PCsnow1 High snow depth and snow density in the fall, winter, and spring seasonal ranges and large proportion of surface area of total geographic range covered by snow in the fall
PCsnow1
 Low snow melt rate in spring and fall seasonal ranges, high snow depth and large proportion of surface area of total geographic range covered by snow in the spring.
Icing events PCice1 High number of days with freeze/thaw events and rain on snow in fall, winter, and spring seasonal ranges.
PCice2 High number of days with freeze/thaw events and rain during snow events in the fall seasonal range, but low in the winter and spring.

*Three herds were in Alaska (Western Arctic, Central Arctic, and Teshekpuk Lake) and 1 Alaska–Canada transboundary (Porcupine), Seasonal ranges: fall, September 1–November 30; winter, December 1–March 31; spring, April 1–May 31; calving, June 1–30; and summer, July 1–August 31. PC, principal component.

Main Article

Page created: June 02, 2022
Page updated: July 20, 2022
Page reviewed: July 20, 2022
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