Ant-aphid relationship: commensalism or protocooperative?

Show simple item record Clover, Kimberly en_US Hiller, Allison en_US
dc.coverage.spatial UMBS Campus en_US 2007-06-14T21:42:24Z 2007-06-14T21:42:24Z 1991 en_US
dc.description.abstract Past documentation reveals that ant and aphid interaction is either commensalistic or protocooperative. Our purpose was to determine what type of symbiotic relationship Formicidae and aphids Homoptera share. The experiment included nine Populus grandidentata saplings with ant (Formicidae) and aphid (Homoptera) populations present on their axis of the stem. There were three additional saplings in the study with ant and aphid populations on the dorsal side of the leaves. The 12 saplings were divided into three treatment groups: 1.) aphids only, 2.) aphids plus ants, and 3.) aphids plus a predator (Coccinellidae). Saplings with aphids along their axis were measured per mm2 each day for five days. Saplings with aphids on the dorsal side of their leaves were individually counted. A Wilcoxon-Mann-Whitney test showed a significant (n1=4,n2=4, U'=16, p<=0.05) decrease in the population size on a sapling with aphids plus lady-bird beetles. The ants may provide the protection against intensive predation and natural predators. en_US
dc.format.extent 261549 bytes
dc.format.extent 3144 bytes
dc.format.mimetype application/pdf
dc.format.mimetype text/plain
dc.subject General Ecology en_US
dc.subject.other INSECTS en_US
dc.subject.other FORMICIDAE en_US
dc.subject.other HYMENOPTERA en_US
dc.subject.other HOMOPTERA en_US
dc.subject.other APHIDS en_US
dc.subject.other POPULUS en_US
dc.subject.other INVERTEBRATES en_US
dc.subject.other SYMBIOSIS en_US
dc.subject.other COMMENSALISM en_US
dc.title Ant-aphid relationship: commensalism or protocooperative? 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 2686.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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