Habitat and ant-attendance in Hemiptera : a phylogenetic test with emphasis on trophobiosis in Fulgoromorpha
Habitat and ant-attendance in Hemiptera : a phylogenetic test with emphasis on trophobiosis in Fulgoromorpha
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发表时间:
1997
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通讯作者:
T. Bourgoin
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作者:
T. Bourgoin
The biological attribute "ant-mutualism" is 50 widely distributed within the Hemiptera that ScHAEFER (1987) suggested thal the association of Hemiptera with ants represcnts the retention of an carly way of Iife which originated on the ground and always preceded a life up on plants. A phylogenetic test of SCl-IAEFER'S scenario indicales thal anl-mutualism cannot he retaillcd as anccstrnl for ail major hemipteran clades but arose independently several limes in groups for which habitat is above ground. Causation between a ground habitat and ant-attendance is nol corroborated. Special attention is paid to trophobiosis in Fulgoromorpha. A1though ail planthoppers could theoretically he associated with anIS only a few of them ure ant-attended, and mainly /lIe Tettigomctridae. Mcmbers of this family share morphological characteristics (no jumping apparatus, no wax plates, no sensory pits, a long anal tube, no anal combs, no anal apodemes in adults) and particular fulgoromorph behavior traits (subsooi.ality, sessile behavior) that could have c\'olved under selection for trophobiosis. This calls for a reanalysis of these morphological..a.nd ~havioral characters that have bcen generally considered as plesiomorphic. Durable fulgoromorphan-ant assoeiations are observcd when planthopper:; arc unable to escape or live with gregarious or subsocial behaviors.