NDLI: Australian family ties: does a lack of relatives help invasive plants escape natural enemies?

Content Provider	Springer Nature Link
Author	Harvey, Kerinne J. Nipperess, David A. Britton, David R. Hughes, Lesley
Copyright Year	2012
Abstract	Invasive plants may initially be released from natural enemies when introduced to new regions, but once established, natural enemies may accumulate. How closely related invasive species are to species in the native recipient community may drive patterns of herbivore and pathogen damage and therefore, may be important in understanding the success of some invasions. We compared herbivore and pathogen damage across a group of invasive species occurring in natural environments on the east coast of Australia. We examined whether the level of damage experienced by the invasive species was associated with the degree of phylogenetic relatedness between these plants and the native plants within the region. We found that phylogenetic distance to the nearest native relative was a good predictor of herbivore and pathogen damage on the invasive plants, explaining nearly 37 % of the variance in leaf damage. Total leaf damage and the variety of damage types declined with increasing phylogenetic distance to the nearest native relative. In addition, as the phylogenetic distance to the nearest native relative increased, invasive species were colonized by fewer functional guilds and the herbivore assemblage was increasingly dominated by generalist species. These results suggest that invasive species that are only distantly related to those in the native invaded community may be released from specialist natural enemies. Our results indicate that the phylogenetic relatedness of invasive plants to species in native communities is a significant predictor of the rate of colonization by the herbivore and pathogen community, and thus a useful tool to assess invasion potential.
Starting Page	2423
Ending Page	2434
Page Count	12
File Format	PDF
ISSN	13873547
Journal	Biological Invasions
Volume Number	14
Issue Number	11
e-ISSN	15731464
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-05-17
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Invasive plants Enemy release hypothesis Naturalization hypothesis Plant–insect interactions Herbivore and pathogen damage Phylogenetic relationships Plant Sciences Freshwater & Marine Ecology Ecology Developmental Biology
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics

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