Comparison of Wolf Densities and Diets Across the GMU 2 Island Complex

Project ID: CT 180000933

Federal Agency: U.S. Fish and Wildlife Service

Partner Institution: Alaska Department of Fish and Game

Partner Institution: Oregon State University

Fiscal Year: 2024

Initial Funding: $643,076

Total Funding: $643,076

Principal Investigator: Fratt, Kayla

Principal Investigator: Roffler, Gretchen

Agreement Technical Representative: Eriksson, Charlotte

Agreement Technical Representative: Levi, Taal

Abstract:  For this project we propose to gain much-needed information about the dynamics of wolves in the island complex of GMU 2. We will apply methods recently developed and tested in our study system to obtain both wolf diet composition and individual genetic identification from the same scat sample, an effective “two-for-one” process. To increase sample collection efficiency, we will use scat detection dogs, a method proven reliable in other study systems and appropriate for application in Southeast Alaska, an area where traditional wolf mark-recapture methods (e.g., capture and radio collaring, aerial telemetry) are difficult to apply. We will develop and test an expanded single nucleotide polymorphism (SNP) panel with sufficient resolution to detect family relationships and which may be used with DNA obtained from noninvasive samples such as scat and hair, therefore applicable to other ongoing wolf monitoring projects in Region 1 and British Columbia. Individual genotypes will be used to obtain minimum counts on GMU 2 islands, and to determine pack occupancy and dispersal of wolves among islands. Our intent is to provide information that may improve annual wolf population estimates and our understanding of wolf dynamics for the management of wolf populations in island systems.