Doctor of Philosophy, University of Tennessee Knoxville (2017)
PhD, University of Tennessee, Ecology and Evolutionary Biology (2017)
Bachelor of Science, Seattle University (2011)
- Climate-driven reduction of genetic variation in plant phenology alters soil communities and nutrient pools GLOBAL CHANGE BIOLOGY 2019; 25 (4): 1514–28
- Bringing Plants & Soils to Life through a Simple Role-Playing Activity AMERICAN BIOLOGY TEACHER 2019; 81 (4): 287–90
Climate-driven reduction of genetic variation in plant phenology alters soil communities and nutrient pools.
Global change biology
We examined the hypothesis that climate-driven evolution of plant traits will influence associated soil microbiomes and ecosystem function across the landscape. Using a foundation tree species, Populus angustifolia, observational and common garden approaches, and a base population genetic collection that spans 17 river systems in the western United States, from AZ to MT, we show that (a) as mean annual temperature (MAT) increases, genetic and phenotypic variation for bud break phenology decline; (b) soil microbiomes, soil nitrogen (N), and soil carbon (C) vary in response to MAT and conditioning by trees; and (c) with losses of genetic variation due to warming, population-level regulation of community and ecosystem functions strengthen. These results demonstrate a relationship between the potential evolutionary response of populations and subsequent shifts in ecosystem function along a large temperature gradient.
View details for PubMedID 30659721
- Feedbacks link ecosystem ecology and evolution across spatial and temporal scales: Empirical evidence and future directions FUNCTIONAL ECOLOGY 2019; 33 (1): 31–42
- Ecosystem feedbacks contribute to geographic variation in plant-soil eco-evolutionary dynamics across a fertility gradient FUNCTIONAL ECOLOGY 2019; 33 (1): 95–106
- Soil fungi underlie a phylogenetic pattern in plant growth responses to nitrogen enrichment JOURNAL OF ECOLOGY 2018; 106 (6): 2161–75