A large number of species and taxa have been studied for genetic polymorphism.
Microsatellites have been known as hypervariable neutral molecular markers with the …

Lifetime reproductive success (LRS), the number of offspring produced over an organism's
lifetime, is a fundamental component of Darwinian fitness. For taxa such as salmonids with …

Rising river temperatures in western North America have increased the energetic costs of
migration and the risk of premature mortality in many Pacific salmon (Oncorhynchus spp.) …

Pacific salmon migration timing can drive population productivity, ecosystem dynamics, and
human harvest. Nevertheless, little is known about long‐term variation in salmon migration …

Millions of dollars are spent annually on revitalizing salmon spawning in riverbeds where
redd building by female salmon is inhibited by sediment that is too big for fish to move. Yet …

Local extirpations of Pacific salmon Oncorhynchus spp. and steelhead O. mykiss, often due
to dams and other stream barriers, are common throughout the western United States …

While the goal of supplementation programs is to provide positive, population‐level effects
for species of conservation concern, these programs can also present an inherent fitness …

For organisms in seasonal environments, individuals that breed earlier in the season
regularly attain higher fitness than their late‐breeding counterparts. Two primary hypotheses …

Hybridization between native and non-native species has serious biological consequences,
but our understanding of how dispersal and selection interact to influence invasive …

Seasonal changes in reproduction have been described for many taxa. As reproductive
seasons progress, females often shift from greater energetic investment in many small …