NDLI: Testing genotypic variation of an invasive plant species in response to soil disturbance and herbivory

Content Provider	Springer Nature Link
Author	Bayliss, Shann L. J. terHorst, Casey P. Lau, Jennifer A.
Copyright Year	2017
Abstract	Herbivores, competitors, and predators can inhibit biological invasions (“biotic resistance” sensu Elton 1959), while disturbance typically promotes biological invasions. Although biotic resistance and disturbance are often considered separately in the invasion literature, these two forces may be linked. One mechanism by which disturbance may facilitate biological invasions is by decreasing the effectiveness of biotic resistance. The effects of both disturbance and biotic resistance may vary across invading genotypes, and genetic variation in the invasive propagule pool may increase the likelihood that some genotypes can overcome biotic resistance or take greater advantage of disturbance. We conducted an experimental field trial in which we manipulated soil disturbance (thatch removal and loosening soil) and the presence of insect herbivores and examined their effects on the invasion success of 44 Medicago polymorpha genotypes. As expected, insecticide reduced leaf damage and increased Medicago fecundity, suggesting that insect herbivores in this system provide some biotic resistance. Soil disturbance increased Medicago fecundity, but did not alter the effectiveness of biotic resistance by insect herbivores. We found significant genetic variation in Medicago in response to disturbance, but not in response to insect herbivores. These results suggest that the ability of Medicago to invade particular habitats depends on the amount of insect herbivory, the history of disturbance in the habitat, and how the specific genotypes in the invader pool respond to these factors.
Starting Page	1135
Ending Page	1141
Page Count	7
File Format	PDF
ISSN	00298549
Journal	Oecologia
Volume Number	183
Issue Number	4
e-ISSN	14321939
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2017-01-28
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biological invasion Genotype-by-environment interaction Genetic variation Herbivory Tolerance Ecology Plant Sciences Hydrology/Water Resources
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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Data from: Testing genotypic variation of an invasive plant species in response to soil disturbance and herbivory (Dataset)

Genotypic variation in the response of two perennial grass species to elevated carbon dioxide

An exotic invasive plant selects for increased competitive tolerance, but not competitive suppression, in a native grass

Genotypic diversity of an invasive plant species promotes litter decomposition and associated processes

Plant diversity, herbivory and resistance of a plant community to invasion in Mediterranean annual communities

Ecological effects of aphid abundance, genotypic variation, and contemporary evolution on plants

Genotypic variation in response of quaking aspen (Populus tremuloides) to atmospheric CO2 enrichment

Competition overwhelms the positive plant–soil feedback generated by an invasive plant

Herbivory and dominance shifts among exotic and congeneric native plant species during plant community establishment

Testing genotypic variation of an invasive plant species in response to soil disturbance and herbivory

Similar Documents

Data from: Testing genotypic variation of an invasive plant species in response to soil disturbance and herbivory (Dataset)

Genotypic variation in the response of two perennial grass species to elevated carbon dioxide

An exotic invasive plant selects for increased competitive tolerance, but not competitive suppression, in a native grass

Genotypic diversity of an invasive plant species promotes litter decomposition and associated processes

Plant diversity, herbivory and resistance of a plant community to invasion in Mediterranean annual communities

Ecological effects of aphid abundance, genotypic variation, and contemporary evolution on plants

Genotypic variation in response of quaking aspen (Populus tremuloides) to atmospheric CO2 enrichment

Competition overwhelms the positive plant–soil feedback generated by an invasive plant

Herbivory and dominance shifts among exotic and congeneric native plant species during plant community establishment

Testing genotypic variation of an invasive plant species in response to soil disturbance and herbivory