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Clarifying climate change adaptation responses for scattered trees in modified landscapes
Australian Centre for Evolutionary Biology and Biodiversity (ACEBB), School of Earth and Environmental Science, University of Adelaide.
2011 (English)In: Journal of Applied Ecology, ISSN 0021-8901, E-ISSN 1365-2664, Vol. 48, no 3, 637-641 p.Article in journal (Refereed) Published
Abstract [en]

1. Many studies have investigated adaptation to climate change. However, the term ‘adaptation’ has been used ambiguously and sometimes included parts of both classic evolutionary processes and conservation planning measures (i.e. human-mediated adaptation).

2. To reduce ambiguity, we define three classes of evolutionary processes involved in adaptation – migrational, novel-variant and plasticity. Migrational adaptation describes the process of redistribution of standing genetic variation among populations. Novel-variant adaptation describes the increase in frequency of beneficial, new genetic variants. Plasticity adaptation refers to adaptive plastic responses of organisms to environmental stressors. Quite separately, human-mediated adaptation aims to maintain these evolutionary processes.

3.  Whilst the role of scattered trees in migrational adaptation of fauna may have been neglected in the past, their capacity to assist migrational adaptation of trees has been previously documented. However, their role in novel-variant and plasticity adaptation is generally unrecognised, and warrants further attention.

4.Synthesis and applications. By defining different aspects of adaptation carefully, we show that scattered trees should not be cleared since they may facilitate gene flow across fragmented landscapes. However, they should be avoided as dominant seed sources since their stock may be of poor quality.

Place, publisher, year, edition, pages
2011. Vol. 48, no 3, 637-641 p.
Keyword [en]
adaptation, climate change, gene flow, inbreeding, landscape management, revegetation, scattered trees, seed sourcing
National Category
Research subject
Conservation Biology; Genetics; Biology with specialization in Ecological Botany
URN: urn:nbn:se:uu:diva-181272DOI: 10.1111/j.1365-2664.2011.01969.xOAI: oai:DiVA.org:uu-181272DiVA: diva2:555594
Available from: 2012-09-24 Created: 2012-09-20 Last updated: 2012-09-25Bibliographically approved

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Breed, Martin F.
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