A genetic discontinuity in moose (Alces alces) in Alaska corresponds with fenced transportation infrastructure

Conservation Genetics
By: , and 

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Abstract

The strength and arrangement of movement barriers can impact the connectivity among habitat patches. Anthropogenic barriers (e.g. roads) are a source of habitat fragmentation that can disrupt these resource networks and can have an influence on the spatial genetic structure of populations. Using microsatellite data, we evaluated whether observed genetic structure of moose (Alces alces) populations were associated with human activities (e.g. roads) in the urban habitat of Anchorage and rural habitat on the Kenai Peninsula, Alaska. We found evidence of a recent genetic subdivision among moose in Anchorage that corresponds to a major highway and associated infrastructure. This subdivision is most likely due to restrictions in gene flow due to alterations to the highway (e.g. moose-resistant fencing with one-way gates) and a significant increase in traffic volume over the past 30 years; genetic subdivision was not detected on the Kenai Peninsula in an area not bisected by a major highway. This study illustrates that anthropogenic barriers can substructure wildlife populations within a few generations and highlights the value of genetic assessments to determine the effects on connectivity among habitat patches in conjunction with behavioral and ecological data..

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title A genetic discontinuity in moose (Alces alces) in Alaska corresponds with fenced transportation infrastructure
Series title Conservation Genetics
DOI 10.1007/s10592-015-0700-x
Volume 16
Issue 4
Year Published 2015
Language English
Publisher Kluwer Academic Publishers
Contributing office(s) Alaska Science Center Biology WTEB
Description 10 p.
First page 791
Last page 800
Country United States
State Alaska
City Anchorage
Other Geospatial Chugach State Park, Joint Base Elmendorf-Richardson, Kenai Peninsula
Online Only (Y/N) N
Additional Online Files (Y/N) N