The effect of host community functional traits on plant disease risk varies along an elevational gradient

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http://hdl.handle.net/10138/332476

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Halliday , F W , Jalo , M & Laine , A-L 2021 , ' The effect of host community functional traits on plant disease risk varies along an elevational gradient ' , eLife , vol. 10 , 67340 . https://doi.org/10.7554/eLife.67340

Title: The effect of host community functional traits on plant disease risk varies along an elevational gradient
Author: Halliday, Fletcher W.; Jalo, Mikko; Laine, Anna-Liisa
Contributor organization: Organismal and Evolutionary Biology Research Programme
Viikki Plant Science Centre (ViPS)
Date: 2021-05-13
Language: eng
Number of pages: 21
Belongs to series: eLife
ISSN: 2050-084X
DOI: https://doi.org/10.7554/eLife.67340
URI: http://hdl.handle.net/10138/332476
Abstract: Quantifying the relative impact of environmental conditions and host community structure on disease is one of the greatest challenges of the 21st century, as both climate and biodiversity are changing at unprecedented rates. Both increasing temperature and shifting host communities toward more fast paced life history strategies are predicted to increase disease, yet their independent and interactive effects on disease in natural communities remain unknown. Here, we address this challenge by surveying foliar disease symptoms in 220, 0.5 m-diameter herbaceous plant communities along a 1100-m elevational gradient. We find that increasing temperature associated with lower elevation can increase disease by (1) relaxing constraints on parasite growth and reproduction, (2) determining which host species are present in a given location, and (3) strengthening the positive effect of host community pace-of-life on disease. These results provide the first field evidence, under natural conditions, that environmental gradients can alter how host community structure affects disease.
Subject: CLIMATE-CHANGE IMPACTS
HISTORY TRADE-OFFS
SPECIES-DIVERSITY
INTRASPECIFIC VARIABILITY
ECONOMICS SPECTRUM
LIVING FAST
BIODIVERSITY
ECOLOGY
TEMPERATURE
PATHOGENS
1181 Ecology, evolutionary biology
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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