Document Detail

Escaping an evolutionary trap: preference and performance of a native insect on an exotic invasive host.
MedLine Citation:
PMID:  18327618     Owner:  NLM     Status:  MEDLINE    
Exotic plants may act as population sinks or evolutionary traps for native herbivores. The native butterfly Pieris oleracea lays eggs on garlic mustard, Alliaria petiolata, but larvae develop very poorly on this exotic invasive plant. We examined oviposition preference of individual females and larval performance of their offspring for individuals from one area where garlic mustard is well established and one where it is absent. These data were used to assess whether garlic mustard is being incorporated into or excluded from the diet. Females from the area without garlic mustard showed a wide range of preference, families had low larval survival on garlic mustard, and larval survivorship showed no correlation with mothers' preferences. Females from the area with garlic mustard preferred it to the native host, and larval survivorship on garlic mustard was positively correlated with the mother's preference. Individuals surviving on garlic mustard took longer to pupate and weighed >30% less compared to pupae reared on normal hosts. Our results suggest that where garlic mustard is well established P. oleracea may be adapting to this plant by both improved larval performance and increased adult female oviposition preference for it.
Margaret S Keeler; Frances S Chew
Related Documents :
11750118 - Biological interaction between soil fungi and toxocara canis eggs.
12822938 - Ovipositional responses of chilo partellus (swinhoe) (lepidoptera: pyralidae) to natura...
22964718 - Geochemistry and environmental assessment of major and trace elements in the surface se...
9782628 - Salmonella in raw shell eggs in northern ireland: 1996-7.
23896678 - Enhancing the biodegradation of oil in sandy sediments with choline: a naturally methyl...
22451108 - Regulation of denitrification at the cellular level: a clue to the understanding of n2o...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-03-08
Journal Detail:
Title:  Oecologia     Volume:  156     ISSN:  0029-8549     ISO Abbreviation:  Oecologia     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-05-07     Completed Date:  2008-08-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0150372     Medline TA:  Oecologia     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  559-68     Citation Subset:  IM    
Department of Biology, Tufts University, Medford, MA 02155, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Behavior, Animal / physiology
Brassicaceae / parasitology*
Butterflies / growth & development,  physiology*
Larva / growth & development
Oviposition / physiology
Survival Analysis
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Litter pool sizes, decomposition, and nitrogen dynamics in Spartina alterniflora-invaded and native ...
Next Document:  Variation in woody plant delta(13)C along a topoedaphic gradient in a subtropical savanna parkland.