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Genetic effects of boneset on gall midge reproductive success

Blair Qi and Emily Vincent

introduction

Boneset plants, Eupatorium altissimum, seem to grow in genet groups.  If genetics play a role in gall size, plants m the same genet may have similar gall size.  Larger galls produce more larvae and thus have higher reproductive success.  Genetically "weaker" plants may form larger galls.

hypothesis

Galls on plants in the same genet will be of similar size.  Taller plants may have larger galls.  Site location may also influence size of galls.

methods

We measured plant height and gall size at five sites in the Nature Park.

results

Plant height varied significantly among the five sites (p < 0.001).  Plants were taller at sites A, B, C, and D and were shorter at site E.