Preventing extinction in an age of species migration and planetary change.

Lundgren, EJ; Wallach, AD; Svenning, J-C; Schlaepfer, MA; Andersson, ALA; Ramp, D

Preventing extinction in an age of species migration and planetary change.

Lundgren, EJ Wallach, AD Svenning, J-C Schlaepfer, MA Andersson, ALA Ramp, D

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Publisher:: WILEY
Publication Type:: Journal Article
Citation:: Conserv Biol, 2024, 38, (6), pp. e14270
Issue Date:: 2024-12

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Field	Value	Language
dc.contributor.author	Lundgren, EJ
dc.contributor.author	Wallach, AD
dc.contributor.author	Svenning, J-C
dc.contributor.author	Schlaepfer, MA
dc.contributor.author	Andersson, ALA
dc.contributor.author	Ramp, D https://orcid.org/0000-0003-3202-9898
dc.date.accessioned	2024-12-02T00:37:00Z
dc.date.available	2024-02-05
dc.date.available	2024-12-02T00:37:00Z
dc.date.issued	2024-12
dc.identifier.citation	Conserv Biol, 2024, 38, (6), pp. e14270
dc.identifier.issn	0888-8892
dc.identifier.issn	1523-1739
dc.identifier.uri	http://hdl.handle.net/10453/182157
dc.description.abstract	International and national conservation policies almost exclusively focus on conserving species in their historic native ranges, thus excluding species that have been introduced by people and some of those that have extended their ranges on their own accord. Given that many of such migrants are threatened in their native ranges, conservation goals that explicitly exclude these populations may overlook opportunities to prevent extinctions and respond dynamically to rapidly changing environmental and climatic conditions. Focusing on terrestrial mammals, we quantified the number of threatened mammals that have established new populations through assisted migration (i.e., introduction). We devised 4 alternative scenarios for the inclusion of assisted-migrant populations in mainstream conservation policy with the aim of preventing global species extinctions. We then used spatial prioritization algorithms to simulate how these scenarios could change global spatial conservation priorities. We found that 22% (70 species out of 265) of all identified assisted-migrant mammals were threatened in their native ranges, mirroring the 25% of all mammals that are threatened. Reassessing global threat statuses by combining native and migrant ranges reduced the threat status of 23 species (∼33% of threatened assisted migrants). Thus, including migrant populations in threat assessments provides a more accurate assessment of actual global extinction risk among species. Spatial prioritization simulations showed that reimagining the role of assisted-migrant populations in preventing species extinction could increase the importance of overlooked landscapes, particularly in central Australia, Europe, and the southwestern United States. Our results indicated that these various and nonexhaustive ways to consider assisted-migrant populations, with due consideration of potential conservation conflicts with resident taxa, may provide unprecedented opportunities to prevent species extinctions.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	WILEY
dc.relation.ispartof	Conserv Biol
dc.relation.isbasedon	10.1111/cobi.14270
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	05 Environmental Sciences, 06 Biological Sciences, 07 Agricultural and Veterinary Sciences
dc.subject.classification	Ecology
dc.subject.classification	3103 Ecology
dc.subject.classification	3109 Zoology
dc.subject.classification	4104 Environmental management
dc.subject.mesh	Conservation of Natural Resources
dc.subject.mesh	Extinction, Biological
dc.subject.mesh	Animals
dc.subject.mesh	Mammals
dc.subject.mesh	Endangered Species
dc.subject.mesh	Animal Migration
dc.subject.mesh	Climate Change
dc.subject.mesh	Animals
dc.subject.mesh	Mammals
dc.subject.mesh	Animal Migration
dc.subject.mesh	Conservation of Natural Resources
dc.subject.mesh	Extinction, Biological
dc.subject.mesh	Endangered Species
dc.subject.mesh	Climate Change
dc.title	Preventing extinction in an age of species migration and planetary change.
dc.type	Journal Article
utslib.citation.volume	38
utslib.location.activity	United States
utslib.for	05 Environmental Sciences
utslib.for	06 Biological Sciences
utslib.for	07 Agricultural and Veterinary Sciences
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Provost
pubs.organisational-group	University of Technology Sydney/Provost/TD School
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by-nc/4.0/
dc.date.updated	2024-12-02T00:36:55Z
pubs.issue	6
pubs.publication-status	Published
pubs.volume	38
utslib.citation.issue	6

Abstract:

International and national conservation policies almost exclusively focus on conserving species in their historic native ranges, thus excluding species that have been introduced by people and some of those that have extended their ranges on their own accord. Given that many of such migrants are threatened in their native ranges, conservation goals that explicitly exclude these populations may overlook opportunities to prevent extinctions and respond dynamically to rapidly changing environmental and climatic conditions. Focusing on terrestrial mammals, we quantified the number of threatened mammals that have established new populations through assisted migration (i.e., introduction). We devised 4 alternative scenarios for the inclusion of assisted-migrant populations in mainstream conservation policy with the aim of preventing global species extinctions. We then used spatial prioritization algorithms to simulate how these scenarios could change global spatial conservation priorities. We found that 22% (70 species out of 265) of all identified assisted-migrant mammals were threatened in their native ranges, mirroring the 25% of all mammals that are threatened. Reassessing global threat statuses by combining native and migrant ranges reduced the threat status of 23 species (∼33% of threatened assisted migrants). Thus, including migrant populations in threat assessments provides a more accurate assessment of actual global extinction risk among species. Spatial prioritization simulations showed that reimagining the role of assisted-migrant populations in preventing species extinction could increase the importance of overlooked landscapes, particularly in central Australia, Europe, and the southwestern United States. Our results indicated that these various and nonexhaustive ways to consider assisted-migrant populations, with due consideration of potential conservation conflicts with resident taxa, may provide unprecedented opportunities to prevent species extinctions.

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http://hdl.handle.net/10453/182157