Plant diversity has contrasting effects on herbivore and parasitoid abundance in Centaurea jacea flower heads
نویسندگان
چکیده
منابع مشابه
Plant diversity has contrasting effects on herbivore and parasitoid abundance in Centaurea jacea flower heads
High biodiversity is known to increase many ecosystem functions, but studies investigating biodiversity effects have more rarely looked at multi-trophic interactions. We studied a tri-trophic system composed of Centaurea jacea (brown knapweed), its flower head-infesting tephritid fruit flies and their hymenopteran parasitoids, in a grassland biodiversity experiment. We aimed to disentangle the ...
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Plant diversity is known to affect success of host location by pest insects, but its effect on olfactory orientation of non-pest insect species has hardly been addressed. First, we tested in laboratory experiments the hypothesis that non-host plants, which increase odour complexity in habitats, affect the host location ability of herbivores and parasitoids. Furthermore, we recorded field data o...
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BACKGROUND Agri-environment schemes play an increasingly important role for the conservation of rare plants in intensively managed agricultural landscapes. However, little is known about their effects on gene flow via pollen dispersal between populations of these species. METHODOLOGY/PRINCIPAL FINDINGS In a 2-year experiment, we observed effective pollen dispersal from source populations of C...
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BACKGROUND AND AIMS The genus Centaurea has traditionally been considered to be a complicated taxon. No attempt at phylogenetic reconstruction has been made since recent revisions in circumscription, and previous reconstructions did not include a good representation of species. A new molecular survey is thus needed. METHODS Phylogenetic analyses were conducted using sequences of the internal ...
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ژورنال
عنوان ژورنال: Ecology and Evolution
سال: 2017
ISSN: 2045-7758
DOI: 10.1002/ece3.3142