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Climate and host genotype jointly shape tree phenology, disease levels and insect attacks

Faticov, Maria and Ekholm, Adam and Roslin, Tomas and Tack, Ayco J. M. (2020). Climate and host genotype jointly shape tree phenology, disease levels and insect attacks. Oikos. 129 , 391-401
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Abstract

One of the best known ecological consequences of climate change is the advancement of spring phenology. Yet, we lack insights into how changes in climate interact with intraspecific genetic variation in shaping spring and autumn phenology, and how such changes in phenology will translate into seasonal dynamics of tree-associated organisms. To elucidate the impact of warming and tree genotype on spring and autumn phenology, as well as the consequences for the population dynamics of a fungal pathogen Erysiphe alphitoides and plant-feeding insect Tuberculatus annulatus, we conducted an active field heating experiment using grafts of five oak genotypes Quercus robur. We found that experimental warming generally advanced oak bud burst in spring and delayed leaf senescence in autumn, while additional variation was explained by tree genotype and warming-by-genotype interactions. Warming or tree genotype did not affect disease levels at the beginning of the season, but shaped both disease levels and aphid density during the latter part of the season. Overall, our findings demonstrate that elevated temperature and genetic variation affect spring and autumn phenology, as well as the seasonal dynamics of higher trophic levels. Such effects may be either direct (i.e. temperature affecting tree phenology and attack independently) or indirect (as due to climate-induced changes in plant traits or the synchrony between trees and their attackers). To achieve a predictive understanding of the ecological responses and potential evolutionary changes of natural food webs in response to climate warming, we should merge the frameworks of global warming and community genetics.

Authors/Creators:Faticov, Maria and Ekholm, Adam and Roslin, Tomas and Tack, Ayco J. M.
Title:Climate and host genotype jointly shape tree phenology, disease levels and insect attacks
Year of publishing :2020
Volume:129
Page range:391-401
Number of Pages:11
Publisher:John Wiley & Sons Ltd on behalf of Nordic Society Oikos
ISSN:0030-1299
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Climate Research
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:aphid-climate interactions, disease, experimental heating, herbivore, host genotype, pathogen-climate interactions, phenology, plant-climate interactions, powdery mildew, Quercus robur
URN:NBN:urn:nbn:se:slu:epsilon-p-103480
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-103480
Additional ID:
Type of IDID
DOI10.1111/oik.06707
Web of Science (WoS)000504045600001
ID Code:16969
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:03 Jun 2020 07:06
Metadata Last Modified:03 Jun 2020 07:06

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