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11 - Assisted Colonisation and Ecological Replacement

from Part II - Conservation Translocations: The Key Issues

Published online by Cambridge University Press:  07 December 2022

Martin J. Gaywood
Affiliation:
University of the Highlands and Islands
John G. Ewen
Affiliation:
Zoological Society of London
Peter M. Hollingsworth
Affiliation:
Royal Botanic Garden Edinburgh
Axel Moehrenschlager
Affiliation:
IUCN SSC Conservation Translocation Specialist Group
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Summary

The main goal of conservation introductions is to maintain biological diversity. In assisted colonisation, individuals of a threatened focal species are translocated to suitable habitats outside the species’ indigenous range. Ecological replacement, on the other hand, is directed towards a focal ecosystem and aims to replace a functional role that has been lost. The most widely recognised concerns with conservation introductions are the risk of causing invasive species, the risk of disrupting natural processes, and moral justification. The expected beneficial outcome of any conservation translocation needs to be measurable and relate to whole populations or ecosystems. In the near future, conservation introductions will probably contribute lifelines for some species and ecosystems.

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Publisher: Cambridge University Press
Print publication year: 2022

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