twogener

Pollen-mediated gene dispersal within continuous and fragmented populations of a forest understorey species, Trillium cuneatum

Pollen movement plays a critical role in the distribution of genetic variation within and among plant populations. Direct measures of pollen movement in the large, continuous populations that characterize many herbaceous plant species are often …

Two-generation analysis of pollen flow across a landscape V: a stepwise approach for extracting factors contributing to pollen structure

Patterns of pollen dispersal are central to both the ecology and evolution of plant populations. However, the mechanisms controlling either the dispersal process itself or our estimation of that process may be influenced by site-specific factors such …

Pollen movement in declining populations of California Valley oak, Quercus lobata: where have all the fathers gone?

The fragmented populations and reduced population densities that result from human disturbance are issues of growing importance in evolutionary and conservation biology. A key issue is whether remnant individuals become reproductively isolated. …

Two-generation analysis of pollen flow across a landscape. I. Male gamete heterogeneity among females

Gene flow is a key factor in the spatial genetic structure in spatially distributed species. Evolutionary biologists interested in microevolutionary processes and conservation biologists interested in the impact of landscape change require a method …