Seed dispersal in the myrmecochorous herb, Trillium grandiflorum.

Show simple item record Van der Voort, Martha E. en_US
dc.coverage.spatial UMBS Campus en_US 2007-06-14T21:51:40Z 2007-06-14T21:51:40Z 1991 en_US
dc.description.abstract Myrmecochory (ant-dispersal) may have evolved in response to seed predation by small mammals. A myrmecochorous species, Trillium grandiflorum, was studied in northern Michigan, to test the prediction that the presence of ants reduces the rate of seed predation by rodents. Seed removal rates were recorded on four different treatments; (a) ant only access, (b) rodent only access, (c) ant/rodent combined access, (d) no ant/no rodent access in two separate trials. The proportion of T. grandiflorum lost to seed predators varied between trials, but differences in removal rates were not significantly different between the treatments. Trends emerged indicating that ants remove more seeds than rodents. When ants and rodents had access to seeds on the same treatment, there was a lower rate of removal than anticipated when removal rates for separate ant and rodent treatments were combined. Overall seed removal was much lower than expected but the data were suggestive of ant presence resulting in reduction of rodent seed predation. en_US
dc.format.extent 597835 bytes
dc.format.extent 3144 bytes
dc.format.mimetype application/pdf
dc.format.mimetype text/plain
dc.subject Plant Population Biology en_US
dc.subject.other TRILLIUM en_US
dc.subject.other MYRMECOCHORY en_US
dc.subject.other DISPERSAL en_US
dc.subject.other SEEDS en_US
dc.subject.other PREDATION en_US
dc.subject.other MUTUALISM en_US
dc.subject.other ANTS en_US
dc.subject.other INSECTS en_US
dc.subject.other INVERTEBRATES en_US
dc.subject.other ELAIOSOMES en_US
dc.subject.other RODENTS en_US
dc.title Seed dispersal in the myrmecochorous herb, Trillium grandiflorum. en_US
dc.type Working Paper en_US
dc.subject.hlbsecondlevel Natural Resource and Environment en_US
dc.subject.hlbtoplevel Science en_US
dc.contributor.affiliationum Biological Station, University of Michigan en_US
dc.contributor.affiliationumcampus Ann Arbor en_US
dc.description.bitstreamurl en_US
dc.description.filedescription Description of 2754.pdf : Access restricted to on-site users at the U-M Biological Station. en_US
dc.owningcollname Biological Station, University of Michigan (UMBS)
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