The current status of genetic monitoring in conservation introductions

Abstract Conservation introductions, translocating species beyond their native range, are increasingly necessary. Because genetic diversity is essential for species to respond to novel environments, understanding whether establishing populations can maintain genetic diversity is crucial to the long‐...

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Main Authors: Elspeth A. McLennan, Catherine E. Grueber, Katherine Belov, Carolyn J. Hogg
Format: Article
Language:English
Published: Wiley 2025-04-01
Series:Conservation Science and Practice
Subjects:
Online Access:https://doi.org/10.1111/csp2.70036
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author Elspeth A. McLennan
Catherine E. Grueber
Katherine Belov
Carolyn J. Hogg
author_facet Elspeth A. McLennan
Catherine E. Grueber
Katherine Belov
Carolyn J. Hogg
author_sort Elspeth A. McLennan
collection DOAJ
description Abstract Conservation introductions, translocating species beyond their native range, are increasingly necessary. Because genetic diversity is essential for species to respond to novel environments, understanding whether establishing populations can maintain genetic diversity is crucial to the long‐term success of conservation introductions. Using a systematic review, we quantified conservation introductions globally and assessed whether genetic monitoring is occurring. We found that, despite extensive discussion, conservation introductions were rare. Of 167 examples, most were performed in North America, Australia, and China, with megadiverse developing nations underrepresented. Plants were disproportionately represented (74%), and climate change was the primary motivator of conservation introductions (40%). Survival and reproduction were the most frequently measured outcomes (71% and 37%, respectively). Ten works (5.9%) reported genetic monitoring, of which only two considered temporal genetic data and showed a worrying trend of rapid negative genetic change post‐establishment. With limited genetic evidence, it remains unclear whether conservation introductions can establish self‐sustaining populations. As these translocations may be the only option for some species, we recommend conservation practitioners trial conservation introductions with temporal genetic monitoring to assess the maintenance of founding genetic diversity and inbreeding. Only through scientifically derived applications of conservation introductions will we learn how to establish self‐sustaining populations in an uncertain future.
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spelling doaj-art-b413e6012329403f931da44081efade72025-08-20T02:16:29ZengWileyConservation Science and Practice2578-48542025-04-0174n/an/a10.1111/csp2.70036The current status of genetic monitoring in conservation introductionsElspeth A. McLennan0Catherine E. Grueber1Katherine Belov2Carolyn J. Hogg3School of Life and Environmental Sciences University of Sydney Sydney New South Wales AustraliaSchool of Life and Environmental Sciences University of Sydney Sydney New South Wales AustraliaSchool of Life and Environmental Sciences University of Sydney Sydney New South Wales AustraliaSchool of Life and Environmental Sciences University of Sydney Sydney New South Wales AustraliaAbstract Conservation introductions, translocating species beyond their native range, are increasingly necessary. Because genetic diversity is essential for species to respond to novel environments, understanding whether establishing populations can maintain genetic diversity is crucial to the long‐term success of conservation introductions. Using a systematic review, we quantified conservation introductions globally and assessed whether genetic monitoring is occurring. We found that, despite extensive discussion, conservation introductions were rare. Of 167 examples, most were performed in North America, Australia, and China, with megadiverse developing nations underrepresented. Plants were disproportionately represented (74%), and climate change was the primary motivator of conservation introductions (40%). Survival and reproduction were the most frequently measured outcomes (71% and 37%, respectively). Ten works (5.9%) reported genetic monitoring, of which only two considered temporal genetic data and showed a worrying trend of rapid negative genetic change post‐establishment. With limited genetic evidence, it remains unclear whether conservation introductions can establish self‐sustaining populations. As these translocations may be the only option for some species, we recommend conservation practitioners trial conservation introductions with temporal genetic monitoring to assess the maintenance of founding genetic diversity and inbreeding. Only through scientifically derived applications of conservation introductions will we learn how to establish self‐sustaining populations in an uncertain future.https://doi.org/10.1111/csp2.70036assisted colonizationdiversity lossecological replacementgenetic monitoringsystematic review
spellingShingle Elspeth A. McLennan
Catherine E. Grueber
Katherine Belov
Carolyn J. Hogg
The current status of genetic monitoring in conservation introductions
Conservation Science and Practice
assisted colonization
diversity loss
ecological replacement
genetic monitoring
systematic review
title The current status of genetic monitoring in conservation introductions
title_full The current status of genetic monitoring in conservation introductions
title_fullStr The current status of genetic monitoring in conservation introductions
title_full_unstemmed The current status of genetic monitoring in conservation introductions
title_short The current status of genetic monitoring in conservation introductions
title_sort current status of genetic monitoring in conservation introductions
topic assisted colonization
diversity loss
ecological replacement
genetic monitoring
systematic review
url https://doi.org/10.1111/csp2.70036
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