Demographic effects on fruit set in the dioecious shrub Canada buffaloberry (Shepherdia canadensis).

ABSTRACT: The effects of pollen limitation on reproductive success in plants have been well-documented using pollen supplementation experiments. However, the role of local demographics in determining pollen limitation, particularly in terms of the additive and interactive effects of pollen availability and competition are not well known. We measured fruit set in the dioecious shrub Canada buffaloberry (Shepherdia canadensis) in Central Alberta, Canada to evaluate whether local demographics measured at three spatial scales (25, 50, and 100 m(2)) affect fruit set in buffaloberry. We test whether density-dependence (population density), pollen donor (measured as male density, distance to nearest male plant and size of nearest male plant), female competitor (measured as female density and distance to ne

SUBMITTER: Johnson KM 

PROVIDER: S-EPMC4137663 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature