Threatened Mammals With Alien Populations: Distribution, Causes, and Conservation
ABSTRACT Many alien species are safe in their native ranges, but some are threatened. This creates a conundrum for conservation and invasion science. We analyzed the distributions, introduction pathways, threats, and conservation strategies of threatened mammals with alien populations globally. We r...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Conservation Letters |
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| Online Access: | https://doi.org/10.1111/conl.13069 |
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| _version_ | 1850078232121966592 |
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| author | Lisa Tedeschi Bernd Lenzner Anna Schertler Dino Biancolini Franz Essl Carlo Rondinini |
| author_facet | Lisa Tedeschi Bernd Lenzner Anna Schertler Dino Biancolini Franz Essl Carlo Rondinini |
| author_sort | Lisa Tedeschi |
| collection | DOAJ |
| description | ABSTRACT Many alien species are safe in their native ranges, but some are threatened. This creates a conundrum for conservation and invasion science. We analyzed the distributions, introduction pathways, threats, and conservation strategies of threatened mammals with alien populations globally. We reassessed their hypothetical IUCN Red List category including the alien part of the range. Among 230 alien mammals, 36 are threatened in their native range, either critically endangered (17%), endangered (25%), or vulnerable (58%). These species were mainly introduced for hunting and exchanged within Asia, with introduced ranges concentrated in south‐eastern Asia and eastern Australia. They face multiple threats, particularly from biological resource use. Conservation strategies are mainly related to species management. Including alien populations in the assessments reduces extinction risk of 22% of the species. Although some of these alien populations may have conservation value, conservation managers should carefully consider them on a case‐by‐case basis to avoid negative impacts on biodiversity. |
| format | Article |
| id | doaj-art-0950bf08e0604ce6bd62df110c7e5de7 |
| institution | DOAJ |
| issn | 1755-263X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Conservation Letters |
| spelling | doaj-art-0950bf08e0604ce6bd62df110c7e5de72025-08-20T02:45:37ZengWileyConservation Letters1755-263X2025-01-01181n/an/a10.1111/conl.13069Threatened Mammals With Alien Populations: Distribution, Causes, and ConservationLisa Tedeschi0Bernd Lenzner1Anna Schertler2Dino Biancolini3Franz Essl4Carlo Rondinini5Division of BioInvasions, Global Change & Macroecology, Department of Botany and Biodiversity Research University of Vienna Vienna AustriaDivision of BioInvasions, Global Change & Macroecology, Department of Botany and Biodiversity Research University of Vienna Vienna AustriaDivision of BioInvasions, Global Change & Macroecology, Department of Botany and Biodiversity Research University of Vienna Vienna AustriaGlobal Mammal Assessment Programme, Department of Biology and Biotechnologies “Charles Darwin” Sapienza University of Rome Rome ItalyDivision of BioInvasions, Global Change & Macroecology, Department of Botany and Biodiversity Research University of Vienna Vienna AustriaGlobal Mammal Assessment Programme, Department of Biology and Biotechnologies “Charles Darwin” Sapienza University of Rome Rome ItalyABSTRACT Many alien species are safe in their native ranges, but some are threatened. This creates a conundrum for conservation and invasion science. We analyzed the distributions, introduction pathways, threats, and conservation strategies of threatened mammals with alien populations globally. We reassessed their hypothetical IUCN Red List category including the alien part of the range. Among 230 alien mammals, 36 are threatened in their native range, either critically endangered (17%), endangered (25%), or vulnerable (58%). These species were mainly introduced for hunting and exchanged within Asia, with introduced ranges concentrated in south‐eastern Asia and eastern Australia. They face multiple threats, particularly from biological resource use. Conservation strategies are mainly related to species management. Including alien populations in the assessments reduces extinction risk of 22% of the species. Although some of these alien populations may have conservation value, conservation managers should carefully consider them on a case‐by‐case basis to avoid negative impacts on biodiversity.https://doi.org/10.1111/conl.13069alien rangebiological invasionsconservationinvasive alien speciesmammalsRed List |
| spellingShingle | Lisa Tedeschi Bernd Lenzner Anna Schertler Dino Biancolini Franz Essl Carlo Rondinini Threatened Mammals With Alien Populations: Distribution, Causes, and Conservation Conservation Letters alien range biological invasions conservation invasive alien species mammals Red List |
| title | Threatened Mammals With Alien Populations: Distribution, Causes, and Conservation |
| title_full | Threatened Mammals With Alien Populations: Distribution, Causes, and Conservation |
| title_fullStr | Threatened Mammals With Alien Populations: Distribution, Causes, and Conservation |
| title_full_unstemmed | Threatened Mammals With Alien Populations: Distribution, Causes, and Conservation |
| title_short | Threatened Mammals With Alien Populations: Distribution, Causes, and Conservation |
| title_sort | threatened mammals with alien populations distribution causes and conservation |
| topic | alien range biological invasions conservation invasive alien species mammals Red List |
| url | https://doi.org/10.1111/conl.13069 |
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