Publications

pesticide concentrations in frog tissue and wetland habitats in a landscape dominated by agriculture.	habitat loss and exposure to pesticides are likely primary factors contributing to amphibian decline in agricultural landscapes. conservation efforts have attempted to restore wetlands lost through landscape modifications to reduce contaminant loads in surface waters and providing quality habitat to wildlife. the benefits of this increased wetland area, perhaps especially for amphibians, may be negated if habitat quality is insufficient to support persistent populations. we examined the presence ...	2015	25244036
cytonuclear discordance across a leopard frog contact zone.	we conducted a genetic analysis of the extent of hybridization within and outside a contact zone between two north american leopard frogs, rana blairi and rana pipiens by comparing distribution patterns of mitochondrial and nuclear haplotypes. the contact zone, located between south dakota, nebraska, and iowa, usa, was previously examined using morphological data in the 1970s, leading to the conclusion that hybridization was rare between r. pipiens and r. blairi. our genetic analysis of 51 popul ...	2007	17689987