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Attracting antagonists: does floral nectar increase leaf herbivory?

Adler, Lynn S. ; Bronstein, Judith L.

Ecology (Durham), 2004-06, Vol.85 (6), p.1519-1526 [Periódico revisado por pares]

Brooklyn: Ecology Society of America

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Título:
Attracting antagonists: does floral nectar increase leaf herbivory?
Autor: Adler, Lynn S. ; Bronstein, Judith L.
Assuntos: Animal behavior ; Datura stramonium ; Ecological genetics ; Ecology ; Evolution ; Flowers ; Flowers & plants ; Herbivores ; herbivory ; Insects ; Manduca sexta ; mutualism ; natural selection ; Nectar ; nectar composition ; nectar reward; oviposition ; Oviposition ; Plant ecology ; Plant reproduction ; Plants ; Pollen ; Pollinating insects ; Pollination ; Special Feature: Community and Evolutionary Ecology of Nectar ; Sphingidae
É parte de: Ecology (Durham), 2004-06, Vol.85 (6), p.1519-1526
Notas: lsadler@vt.edu
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Corresponding Editor: A. A. Agrawal. For reprints of this Special Feature, see footnote 1, p. 1477
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Descrição: Traits that are attractive to mutualists may also attract antagonists, resulting in conflicting selection pressures. Here we develop the idea that increased floral nectar production can, in some cases, increase herbivory. In these situations, selection for increased nectar production to attract pollinators may be constrained by a linked cost of herbivore attraction. In support of this hypothesis, we report that experimentally supplementing nectar rewards in Datura stramonium led to increased oviposition by Manduca sexta, a sphingid moth that pollinates flowers, but whose larvae feed on leaf tissue. We speculate that nectar composition may provide information about plant nutritional status or defense that floral visitors could use to make oviposition decisions. Thus, selection by floral visitors and leaf herbivores may be inextricably intertwined, and herbivores may represent a relatively unexplored agent of selection on nectar traits.
Editor: Brooklyn: Ecology Society of America
Idioma: Inglês

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Attracting antagonists: does floral nectar increase leaf herbivory?

Adler, Lynn S. ; Bronstein, Judith L.

Brooklyn: Ecology Society of America

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