A5028128187- Fish Ecology and Management Studies
- Genetic diversity and population structure
- Environmental DNA in Biodiversity Studies
- Genetic and phenotypic traits in livestock
- Aquatic Invertebrate Ecology and Behavior
- Gene expression and cancer classification
- Wildlife Ecology and Conservation
Wild Salmon Center
2024-2025
Michigan State University
2021-2024
University of Montana
2021
University of California, Davis
2016-2020
Watershed Center
2018
Accounting for specific alleles can be necessary to prevent the loss of significant biodiversity and ecosystem services.
Phenotypic variation is critical for the long-term persistence of species and populations. Anthropogenic activities have caused substantial shifts reductions in phenotypic across diverse taxa, but underlying mechanism(s) (i.e., plasticity and/or genetic evolution) consequences (e.g., ability to recover variation) are unclear. Here we investigate widespread dramatic changes adult migration characteristics wild Chinook salmon by dam construction other anthropogenic activities. Strikingly, find...
Abstract Landscape permeability is often explored spatially, but may also vary temporally. permeability, including partial barriers, influences migratory animals that move across the landscape. Partial barriers are common in rivers where barrier passage varies with streamflow. We explore influence of on spatial and temporal distribution migration‐linked genotypes Oncorhynchus mykiss , a salmonid fish co‐occurring resident forms, tributaries to South Fork Eel River, California, USA, Elder Fox...
Partial migration is a common phenomenon wherein populations include migratory and resident individuals. Whether an individual migrates or not has important ecological management implications, particularly within protected populations. Within partially of Oncorhynchus mykiss, highly correlated with specific genomic region, but it unclear how well this region predicts at the level. Here, we relate sex life history genotype, determined using >400 single nucleotide polymorphisms (SNPs) on...
Abstract Intraspecific diversity plays a critical role in the resilience of Chinook salmon populations. California's Central Valley (CV) historically hosted one most diverse population complexes world. However, anthropogenic factors have dramatically decreased this diversity, with severe consequences for resilience. Here we use next generation sequencing and an archive thousands tissue samples collected across two decades during juvenile outmigration to evaluate phenotypic between within...
Abstract Phenotypic variation is critical for the long-term persistence of species and populations. Anthropogenic activities have caused substantial shifts reductions in phenotypic across diverse taxa, but underlying mechanism (i.e., plasticity and/or genetic evolution) potential to recover previous characteristics are unclear. Here we investigate changes adult migration wild salmon populations by dam construction other anthropogenic habitat modifications. Strikingly, find that dramatic...
Abstract The delineation of conservation units (CUs) is a challenging issue that has profound implications for minimizing the loss biodiversity and ecosystem services. CU typically seeks to prioritize evolutionary significance genetic methods play pivotal role in process by quantifying overall differentiation between populations. While CUs primarily reflect do protect adaptive differences distant populations, they not necessarily variation within highly connected Advances genomic methodology...
Abstract Chinook salmon ( Oncorhynchus tshawytscha ) display remarkable life history diversity, underpinning their ability to adapt environmental change. Maintaining diversity is vital the resilience and stability of metapopulations, particularly under changing climates. However, conditions that promote are rapidly disappearing, as anthropogenic forces homogenization habitats genetic lineages. In this study, we use highly modified Yuba River in California understand if distinct lineages...
Abstract Genomic diversity is the fundamental building block of biodiversity and necessary ingredient for adaptation. Our rapidly increasing ability to quantify functional, compositional, structural genomic populations forces question how balance conservation goals – should focus be on important functional key life history traits or maximizing as a whole? Specifically, intra-specific (biocomplexity) comprised phenotypic genetic variation can determine population respond changing...