ISSN:
1432-1939
Keywords:
Climate
;
Clonal variation
;
Community structure
;
Herbivory
;
Interspecific competition
;
Plant-insect interactions
;
Thrips
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary The effects of clonal variation, interspecific competition, and climate upon the population size of Apterothrips secticornis was assessed by a series of observations and experimental manipulations. Three clones of the host plant, Erigeron glaucus, consistently supported different numbers of thrips during monthly censuses. When rosettes of the three clones were transplanted to a common garden, relative numbers of thrips on the clones remained the same as those observed where the clones grew in situ. The presence or absence of other hervivores had no effect on thrips numbers in the common garden. Plume moth caterpillars and thrips were observed to co-occur less often than expected in the field but this was caused by differences in habitat selection by these two species rather than being the result of interspecific competition. Populations of thrips were affected by climate, but analyses suggest that the host clone was a more important factor.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00379373
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