How does floral display size influence male and female fitness?
Analysis of total fertility through male and female function confirms that plants with larger displays mother and sire more seeds. However, siring success per flower declines sharply with increasing display size, while female success per flower does not vary with display. Total fitness per flower (accounting for greater expression of inbreeding depression with increased selfing rate) also declines strongly with floral display. 5) What is the extent of pollen carryover in Mimulus ringens? Dr. Karsten Holmquist demonstrated that pollen carryover is very limited in Mimulus ringens, and most genes are dispersed to the first three recipient flowers in the visitation sequence. Dr. Holmquist received his PhD in 2005 and is now a post-doctoral researcher at Univ. of Wisconsin-Madison. 6) How do competitors for pollination influence reproductive success and the mating system? Dr. John Bell demonstrated that the presence of Lobelia siphilitica, a competitor for pollination, leads to a 37% reduct
