United States legislation requires the US Environmental Protection Agency to ensure that
pesticide use does not cause unreasonable adverse effects on the environment, including …

Riverscour is an eclectic assemblage of highly biodiverse riparian natural communities that
share characteristics with grasslands, savannas, glades, wetlands, and floodplains. We …

Pityopsis ruthii (Ruth's golden aster) is a federally endangered herbaceous perennial
endemic to the Hiwassee and Ocoee Rivers in southeastern Tennessee, United States …

Environmental change, accelerated by anthropogenic activities, threatens many species and
can be especially challenging for rare species given their potentially limited capacity for …

Pityopsis ruthii (Small) Small, Ruth's golden aster, is an endangered Asteraceae species
that grows in the riparian zone along small sections of two rivers in the Southern …

Land managers primarily collect population counts to track rare plant population trends.
These count-based data sets are often used to develop population viability analysis (PVA) to …

Age composition data from a commercial walleye (Sander vitreus) fishery in the Peace–
Athabasca Delta were used to test the hypotheses that recruitment varied interannually and …

Pityopsis ruthii is a federally endangered plant, endemic to riparian areas of the Hiwassee
and Ocoee rivers in southeastern Tennessee. The population size and spatial distribution of …

The concept of population viability is a central tenet of landscape planning and
management. Maintaining biological diversity and therefore the viability of all species …

• Premise of the study: Microsatellite loci were developed for the endangered species
Pityopsis ruthii and will permit genetic and conservation studies of the species.• Methods …