James Clark, Ph.D.


Ecosystem interactions control spring green-up, published in Remote Sensing of Environment

A warming climate is changing the pace of spring green-up.  Using remote sensing and a new approach that quantifies the rate of green-up, Seyednasrollah et al show that green-up is fast in the mountains and relatively insensitive to temperature anomalies, while slow development in warm, coastal forests can respond to temperature […]


National drought assessment honored

On Thursday, December 8, Jim Vose, project leader of the U.S. Forest Service Integrated Forest Science accepted the Chief’s Award – one of the highest honors in the Forest Service — in the category of “Sustaining Forests and Grasslands.” Vose accepted as leader of a team that the award honored for “understanding the […]


GJAM in Ecological Monographs

Probabilistic forecasts of species’ distributions, abundances, and traits require models that accommodate the joint distribution of species and attributes based on combinations of continuous and discrete observations, mostly zeros…  early view here, pdf here clarkms, appendixs1


ISBA announces best poster award

The EnviBayes section of ISBA this year has granted two best posters awards at the ISBA World Conference in Forte Village (June 13th – 17th, Cagliari, Italy).  Joint Species distribution modeling: dimension reduction using Dirichlet processes by Daniel Taylor-Rodriguez, postdoc at the Department of Statistical Science Duke University, with Kimberly Kaufield […]


It works: predicting multiple traits from environment

early view in Ecology Trait analysis aims to understand relationships between traits, species diversity, and the environment. Current methods could benefit from a model-based probabilistic framework that accommodates covariance between traits and quantifies contributions from inherent trait syndromes, species interactions, and responses to the environment… read more


National Drought Assessment released

full report … provides input to the reauthorized National Integrated Drought Information System (NIDIS) and the National Climate Assessment (NCA). Produced every 4 years, the NCA evaluates the effects of global climate change on forests, agriculture, rangelands, land and water resources, human health and welfare, and biological diversity, and it projects major […]