Abstract:
:We examined patterns of density and species diversity for leaf-mining Lepidopterans and gall-forming Hymenopterans in two oak (Quercus spp.) hybrid zones: Quercus depressipes x Q. rugosa and Q. emoryi x Q. coccolobifolia. In both species complexes, hybrid hosts typically supported significantly lower densities and species diversity of parasites than did parental types. This contradicts the findings of Whitham (1989) that suggested that hybrid hosts may act as parasite sinks both in ecological and evolutionary time. We discuss features of hybrid zones that are likely to influence patterns of herbivory.
journal_name
Oecologiajournal_title
Oecologiaauthors
Boecklen WJ,Spellenberg Rdoi
10.1007/BF00317348subject
Has Abstractpub_date
1990-11-01 00:00:00pages
92-100issue
1eissn
0029-8549issn
1432-1939pii
10.1007/BF00317348journal_volume
85pub_type
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