Climate warming strengthens indirect interactions in an old-field food web
نویسندگان
چکیده
منابع مشابه
Climate warming strengthens indirect interactions in an old-field food web.
Climate change is expected to alter trophic interactions within food chains, but predicting the fate of particular species is difficult because the predictions hinge on knowing exactly how climate influences direct and indirect interactions. We used two complementary approaches to examine how climate change may alter trophic interactions within an old-field food web composed of herbaceous plant...
متن کاملTrait-mediated Indirect Interactions in a Simple Aquatic Food Web
This investigation examines the role of trait-mediated indirect interactions in a simple aquatic food web. We conducted the experiments in cattle watering tanks in order to establish whether competitive and predator–prey interactions between two species are affected by other species in the system; i.e., are pairwise interaction strengths affected by the background species assemblage? We examine...
متن کاملField evidence of trait-mediated indirect interactions in a rocky intertidal food web
Geoffrey C. Trussell,* Patrick J. Ewanchuk and Mark D. Bertness Department of Ecology and Evolutionary Biology, Brown University, Providence, RI 02912, U.S.A. *Correspondence and present address: Department of Biology, College of the Holy Cross, 1 College Street, Worcester, MA 01610-2395, U.S.A. E-mail: [email protected] Abstract Studies on the implications of food web interactions to comm...
متن کاملResource edibility and trophic exploitation in an old-field food web.
I tested a food web model that predicts how environmental productivity (nutrient supply) and top carnivores should mediate interactions among herbivores, edible plants, and plants that are resistant to herbivory because they possess anti-herbivore defenses. Feeding trials with the dominant grasshopper herbivore at the study site confirmed that certain plant species were resistant to herbivory b...
متن کاملEffects of Top Predator Species on Direct and Indirect Interactions in a Food Web
Current theory on trophic interactions in food webs assumes that ecologically similar species can be treated collectively as a single functional unit such as a guild or trophic level. This theory implies that all species within that unit transmit identical direct and indirect effects throughout the community. We evaluated this assumption by conducting experiments to compare the direct and indir...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ecology
سال: 2009
ISSN: 0012-9658
DOI: 10.1890/08-2254.1