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Unformatted text preview: e caribou cause NORTHERN
wolf migration? 5 25/02/2013 Wolf tracking of caribou herds Caribou – Wolf Spatial Dynamics
Wolves Caribou Summer
Wolves follow the
Caribou south in
winter 1. Northern, migratory wolves follow the caribou
south for winter, and back North the following
2. Resident, southern wolves live in the boreal
forest, prey upon deer, moose, elk, and non
• Southern wolves generally are territorial -Southern wolves work to keep other packs out
Modified from Musiani et al. (2007) 21 22 -Summer: Caribou are in the North, North wolves are in the North
-Winter: Caribou migrate South, North wolves migrate South Migration s Differential Effects on Markers Wolf Mating Season and Genetic Differentiation
1. Mating occurs in February/March, when
northern wolves are at the Southern end
of their range.
What effect does this have? Northern Fall
Migration 2. Dispersal, residency, migration in wolves
follows the natal pack.
Pups born to migratory packs migrate
Pups born in the boreal, resident
packs stay Spring
Migration Southern 3. Can this explain the discrepancy in Fst
estimates for mtDNA vs. autosomes? Summer
23 Winter Summer Mating Season 24 -Contact bet ween the N and S populations occurs in the Winter
w hen the N population follows the caribou population South 6 25/02/2013 Migration s Differential Effects on Markers Migration s Differential Effects on Markers
like mtDNA, follow the
mother and the pack.
Migration Y chromosome & autosomal
markers follow the individuals
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This document was uploaded on 01/27/2014.
- Winter '14
- Annotated Lecture S