A5064754392- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Species Distribution and Climate Change
- Land Use and Ecosystem Services
- Rangeland and Wildlife Management
- Soil Carbon and Nitrogen Dynamics
- Conservation, Biodiversity, and Resource Management
- Botany and Plant Ecology Studies
- Plant Parasitism and Resistance
- Animal Ecology and Behavior Studies
- Plant Water Relations and Carbon Dynamics
- Forest Management and Policy
- Wildlife Ecology and Conservation
- Evolution and Genetic Dynamics
- Traffic and Road Safety
- Injury Epidemiology and Prevention
- Leaf Properties and Growth Measurement
- Safety Warnings and Signage
- Ecosystem dynamics and resilience
- Genetic diversity and population structure
- Genetics and Plant Breeding
- Plant responses to elevated CO2
- Forest ecology and management
- Agriculture Sustainability and Environmental Impact
- Advanced Photonic Communication Systems
Volpe National Transportation Systems Center
2020-2023
United States Department of Transportation
2023
Harvard University
1999-2020
U.S. National Arboretum
2015-2020
University of Zurich
2011-2017
Chinese Academy of Sciences
2013-2015
Xinjiang Institute of Ecology and Geography
2013-2015
Columbia University
2006-2013
Commonwealth Medical College
2012
University of Scranton
2012
Plant diversity generally promotes biomass production, but how the shape of response curve changes with time remains unclear. This is a critical knowledge gap because this relationship indicates extent to which loss first few species will influence production. Using two long-term (≥13 years) biodiversity experiments, we show that effects on productivity increased and became less saturating over time. Our analyses suggest diversity-dependent ecosystem feedbacks interspecific complementarity...
How closely does variability in ecologically important traits reflect evolutionary divergence? The use of phylogenetic diversity (PD) to predict biodiversity effects on ecosystem functioning, and more generally the information community ecology, depends part answer this question. However, comparisons predictive power functional (FD) have not been conducted across a range experiments. To address how trait variation control biomass production, we summarized results 29 grassland plant...
Accurate predictions of spring plant phenology with climate change are critical for projections growing seasons, communities and a number ecosystem services, including carbon storage. Progress towards prediction, however, has been slow because the major cues known to drive - temperature (including winter chilling forcing) photoperiod generally covary in nature may interact, making accurate responses complex nonlinear. Alternatively, recent work suggests many species be dominated by one cue,...
Summary New analytical tools applied to long‐term data demonstrate that ecological communities are highly dynamic over time. We developed an r package, library(“codyn”) , help ecologists easily implement these metrics and gain broader insights into community dynamics. provides temporal diversity indices stability metrics. All functions designed be implemented multiple replicates. Temporal include species turnover, mean rank shifts rate of change Community calculate overall patterns...
The majority of species in ecosystems are rare, but the ecosystem consequences losing rare poorly known. To understand how may influence functioning, this study quantifies contribution based on their relative level rarity to community functional diversity using a trait-based approach. Given that can be defined several different ways, we use four definitions rarity: abundance (mean and maximum), geographic range, habitat specificity. We find rarer contribute when is by maximum abundance,...
Background In Sub-Saharan Africa, 40% of children under five years in age are chronically undernourished. As new investments and attention galvanize action on African agriculture to reduce hunger, there is an urgent need for metrics that monitor agricultural progress beyond calories produced per capita address nutritional diversity essential human health. this study we demonstrate how ecological tool, functional (FD), has potential provide insights cropping systems rural Africa. Methods...
Recent studies assessing the role of biological diversity for ecosystem functioning indicate that functional traits and evolutionary history species in a community, not number taxonomic units, ultimately drives biodiversity--ecosystem-function relationship. Here, we simultaneously assessed importance plant trait phylogenetic as predictors major trophic groups soil biota (abundance diversity), six years from onset grassland biodiversity experiment. Plant were generally better than...
Summary 1. The potential resorption of substantial amounts nutrients from all vegetative organs plants has large implications for the plant nutrient economy and biogeochemical cycles. So far, most studies have focused on leaf only. Besides, while evidence is growing that soil fertility changes impact at a spatial scale, hardly anything known such coupling small scale. 2. Here we show nitrogen (N) in culms four dominant grasses northern Chinese steppes contributed 17% to 36% total pool N...
Abstract Heterogeneity is increasingly recognized as a foundational characteristic of ecological systems. Under global change, understanding temporal community heterogeneity necessary for predicting the stability ecosystem functions and services. Indeed, spatial commonly used in alternative stable state theory predictor therefore an early indicator regime shifts. To evaluate whether species composition predictive communities, we analyzed 68 data sets spanning freshwater terrestrial systems...
Assessing the influence of climate, soil fertility, and species identity on leaf trait relationships is crucial for understanding adaptations plants to their environment interpreting across spatial scales. In a comparative field study 171 plant in 174 grassland sites China, we examined trade-offs, defined as negative covariance between two traits, persistence (leaf mass per area, LMA) productivity (mass-based photosynthetic rate, Amass, N P content, use efficiency, PNUE). We asked which...
The functional diversity of a community can influence ecosystem functioning and reflects assembly processes. large number disparate metrics used to quantify the range attributes underlying this concept, generally summarized as richness, evenness, divergence. However, in practice, we know very little about which drive functions, due lack field-based tests. Here test association between eight leading (Rao's Q, FD, FDis, FEve, FDiv, convex hull volume, species group richness) that emphasize...