Journal
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
Volume 376, Issue 1837, Pages -Publisher
ROYAL SOC
DOI: 10.1098/rstb.2020.0359
Keywords
amplification; dilution effect; enemy release; host breadth; invasive species; pest emergence; phylogenetic conservatism
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Funding
- NSERC
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Plant-pathogens and insect pests play crucial roles in shaping ecological communities, and global changes in climate and land use, as well as transportation of plants and pests globally, are likely to exacerbate the range, frequency, and severity of pest outbreaks, highlighting the urgent need to expand ecological theory to address these challenges.
Plant-pathogens and insect pests, hereafter pests, play an important role in structuring ecological communities, yet both native and introduced pests impose significant pressure on wild and managed systems, and pose a threat to food security. Global changes in climate and land use, and transportation of plants and pests around the globe are likely to further increase the range, frequency and severity of pest outbreaks in the future. Thus, there is a critical need to expand on current ecological theory to address these challenges. Here, we outline a phylogenetic framework for the study of plant and pest interactions. In plants, a growing body of work has suggested that evolutionary relatedness, phylogeny, strongly structures plant-pest associations-from pest host breadths and impacts, to their establishment and spread in new regions. Understanding the phylogenetic dimensions of plant-pest associations will help to inform models of invasive species spread, disease and pest risk in crops, and emerging pest outbreaks in native plant communities-which will have important implications for protecting food security and biodiversity into the future. This article is part of the theme issue 'Infectious disease macroecology: parasite diversity and dynamics across the globe'.
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