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First published in Endangered Species Research, v58 published by Inter-Research Science Publisher. DOI: https://doi.org/10.3354/esr01440

Document Type

Article

Publication Version

Published Version

Keywords

Expert elicitation, Glyptemys insculpta, Population growth rate, Threat analysis, Wood turtles

Journal/Book/Conference Title

Endangered Species Research

Volume

58

First Page

147

Last Page

158

Abstract

Long-term survival of a conservation-reliant species requires understanding the impact of threats on population growth rate and the management actions that can help mitigate these threats. We used a threat assessment with expert-elicited estimates to determine the relative effect of each stage-specific threat on the population growth rate of the wood turtle Glyptemys insculpta. In addition, we offered potential management actions that could mitigate these threats and examined the relative cost and benefit of each. The experts responded that predators had the largest effect on hatchling and juvenile survival and that road mortality had the largest effect on adult survival. The population growth rate of the simulated turtle population increased the most when predators were removed from the system, though the population trajectory remained negative. Finally, we found that predator control had the lowest cost:benefit ratio of the proposed management actions. The process used in this analysis of expert elicitation combined with modeling that accounts for uncertainty proved to be a useful technique that is less expensive and labor intensive than empirical studies and quicker to implement, although it relies on sufficient empirical studies to inform expert responses. This process could be replicated for other species to inform species status assessments.

Department

Department of Biology

Original Publication Date

9-25-2025

Object Description

1 PDF File

DOI of published version

10.3354/esr01440

Repository

UNI ScholarWorks, Rod Library, University of Northern Iowa

Copyright

© J. F. Moore, F. Johnson, T. S. Akre, Y. M. Lee, J. Drescher-Lehman, J. Kleopfer, J. Meck, K. Oxenrider, J. Tamplin and outside the USA, The U.S. Government 2025

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Language

en

File Format

application/pdf

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