Parasite–grass–forb interactions and rock–paper– scissor dynamics: predicting the effects of the parasitic plant Rhinanthus minor on host plant communities
نویسندگان
چکیده
scissor dynamics: predicting the effects of the parasitic plant Rhinanthus minor on host plant communities Duncan D. Cameron*, Andy White and Janis Antonovics† Department of Animal and Plant Sciences, University of Sheffield, Alfred Denny Building, Western Bank, Sheffield S10 2TN, UK; and Department of Mathematics and Maxwell Institute for Mathematical Sciences, Heriot Watt University, Edinburgh EH14 4AS, UK
منابع مشابه
Suppression of host photosynthesis by the parasitic plant Rhinanthus minor.
BACKGROUND AND AIMS Parasitism is well understood to have wide-ranging deleterious effects on host performance in species thus far characterized. Photosynthetic performance reductions have been noted in the Striga-Zea mays association; however, no such information exists for facultative hemiparasitic plants and their hosts, nor are the effects of host species understood. METHODS Chlorophyll f...
متن کاملGenetic variation changes the interactions between the parasitic plant-ecosystem engineer Rhinanthus and its hosts.
Within-species genetic variation is a potent factor influencing between-species interactions and community-level structure. Species of the hemi-parasitic plant genus Rhinanthus act as ecosystem engineers, significantly altering above- and below-ground community structure in grasslands. Here, we show the importance of genotypic variation within a single host species (barley-Hordeum vulgare), and...
متن کاملParasitic plant litter input: a novel indirect mechanism influencing plant community structure.
Parasitic plants have major impacts on plant community structure through their direct negative influence on host productivity and competitive ability. However, the possibility that these parasites may also have indirect impacts on community structure (via the mechanism of nutrient-rich litter input) while long hypothesized, has remained unsupported until now. Using the hemiparasite Rhinanthus m...
متن کاملThe genetics of indirect ecological effects—plant parasites and aphid herbivores
When parasitic plants and aphid herbivores share a host, both direct and indirect ecological effects (IEEs) can influence evolutionary processes. We used a hemiparasitic plant (Rhinanthus minor), a grass host (Hordeum vulgare) and a cereal aphid (Sitobion avenae) to investigate the genetics of IEEs between the aphid and the parasitic plant, and looked to see how these might affect or be influen...
متن کاملDifferential resistance among host and non-host species underlies the variable success of the hemi-parasitic plant Rhinanthus minor.
BACKGROUND AND AIMS Rhinanthus minor is a root hemiparasitic plant that attacks a wide range of host species which are severely damaged by the parasite. Rhinanthus minor also attempts unsuccessfully to form connections to a range of non-hosts which in contrast are not damaged by the parasite; however, the underlying physiological basis of these differences is not fully understood. METHODS Bio...
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تاریخ انتشار 2009