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A pre-adaptive approach for tropical forest restoration during climate change using naturally occurring genetic variation in response to water limitation

Axelsson, Petter and Grady, Kevin C. and Lardizabal, Maria L. T. and Nair, Ignatius B. S. and Rinus, Daideth and Ilstedt, Ulrik (2020). A pre-adaptive approach for tropical forest restoration during climate change using naturally occurring genetic variation in response to water limitation. Restoration Ecology. 28 :1 , 156-165
[Journal article] (In Press)

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Abstract

Effective reforestation of degraded tropical forests depends on selecting planting material suited to the stressful environments typical at restoration sites that can be exacerbated by increased duration and intensity of dry spells expected with climate change. While reforestation efforts in nontropical systems are incorporating drought-adapted genotypes into restoration programs to cope with drier conditions, such approaches have not been tested or implemented in tropical forests. As the first effort to examine genetic variation in plant response to drought in a tropical wet forest, we established a watering experiment using five replicated maternal lines (i.e. seedlings from different maternal trees) of five dipterocarp species native to Borneo. Apart from the expected species level variation in growth and herbivory (3-fold variation in both cases), we also found intraspecific variation so that growth in some cases varied 2-fold, and herbivory 3-fold, among genetically different maternal lines. In two species we found that among-maternal line variation in growth rate was negatively correlated with tolerance to water limitation, that is, the maternal lines that performed the best in the high water treatment lost proportionally more of their growth during water limitation. We argue that selection for tolerance to future drier conditions is not only likely to impact population genetics of entire forests, but likely extends from forest trees to the communities of canopy arthropods associated with these trees. In tropical reforestation efforts where increased drought is predicted from climate change, including plant material resilient to drier conditions may improve restoration effectiveness.

Authors/Creators:Axelsson, Petter and Grady, Kevin C. and Lardizabal, Maria L. T. and Nair, Ignatius B. S. and Rinus, Daideth and Ilstedt, Ulrik
Title:A pre-adaptive approach for tropical forest restoration during climate change using naturally occurring genetic variation in response to water limitation
Year of publishing :2020
Volume:28
Number:1
Page range:156-165
Number of Pages:0
Publisher:Wiley, Society for Ecological Restoration
ISSN:1061-2971
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Accepted version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:climate change, Dipterocarpaceae, drought tolerance, genetic variation, herbivory, reforestation, tropical forest restoration
URN:NBN:urn:nbn:se:slu:epsilon-p-102425
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-102425
Additional ID:
Type of IDID
DOI10.1111/rec.13030
Web of Science (WoS)000490788700001
ID Code:16644
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Ecology and Management
(S) > Dept. of Wildlife, Fish and Environmental Studies
Deposited By: SLUpub Connector
Deposited On:03 Sep 2020 10:16
Metadata Last Modified:18 Oct 2020 23:15

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