Hall Cushman | Dept. of Natural Resources & Environmental Science (2024)

Summary Courses & Teaching Responsibilities Education Publications Journals Continent-wide synthesis of the long-term population dynamics of quaking aspen in the face of accelerating human impacts. Effects of human-altered landscapes on a reintroduced ungulate: Patterns of habitat selection at the rangeland-wildland interface. Context-dependent effects of a large mammalian herbivore on soil properties and processes due to soil texture and herbivore activity. Long-term and interactive effects of different mammalian consumers on growth, survival and recruitment of dominant tree species. Cascading effects of mammalian herbivores on ground-dwelling arthropods: variable responses across arthropod groups, habitats and seasons. Effects of native bryophytes on exotic grass invasion across an environmental gradient. Synthesizing the effects of large, wild herbivore exclusion on ecosystem function. Indirect effects of a large mammalian herbivore on small mammal populations: Context-dependent variation across habitat types, mammal species, and seasons Native herbivores and environmental heterogeneity as mediators of an exotic grass invasion. Effects of individual, community and landscape drivers on the dynamics of a wildland forest epidemic. Shrubs as ecosystem engineers across an environmental gradient: effects on species richness and exotic plant invasion. Community-level consequences of cattle grazing for an invaded grassland: variable responses of native and exotic vegetation. Responses to invasion and invader removal differ between native and exotic plant groups in a coastal dune. Population genetic diversity and structure of two rare vernal pool grasses in central California. Native herbivores and plant facilitation mediate the performance and distribution of an invasive exotic grass. Spatial estimation of the density and carbon content of host populations for Phytophthora ramorum in California and Oregon. Community-level consequences of invasion: impacts of exotic clonal plants on riparian vegetation. Shrubs as ecosystem engineers in a coastal dune: influences on plant populations, communities and ecosystems. Influence of land-cover change on the spread of an invasive forest pathogen. Multi-scale patterns of human activity and the incidence of an exotic forest pathogen. Negative effects of vertebrate herbivores on invertebrates in a coastal dune community. Effects of a directional abiotic gradient on plant community dynamics and invasion in a coastal dune system. Influence of a large herbivore reintroduction on plant invasions and community composition in a California grassland. Temporal changes in native and exotic vegetation and soil characteristics following disturbances by feral pigs in a California grassland. Indirect effects of deer herbivory on local nitrogen availability in a coastal dune ecosystem.