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Toxicity of copper to larval Primephales promelas in the presence of photodegraded natural dissolved organic matter

Photochemical control of copper complexation by dissolved organic matter in Rocky Mountain streams, Colorado

Complexation and time-dependent accumulation of copper by larval fathead minnows (Pimephales promelas): Implications for modeling toxicity

Global analysis of nitrogen and phosphorus limitation of primary producers in freshwater, marine and terrestrial ecosystems

Niche Modeling: Predictions from Statistical Distributions

Cultural diversity, economic development and societal instability

Amboseli elephant database

The main database (in Access) comprises visual on-the-ground sightings by (over the years) sixteen observers of (now) 53 elephants families (ca. 2000 known individuals) of the Amboseli elephant population from September 1972 until the present.

Analysis of long-term litter decomposition experiments

Although numerous short-term experiments have been used to develop conceptual and simulation models of decomposition, very little is known about the later stages of this process. Exclusion of this later stage has led, at best, to incomplete understanding of ecosystem carbon and nitrogen dynamics. This working group examined the wealth of litter and decomposition data that has been produced by several recent long-term field experiments.

Ants, birds, and tree diversity: Coffee agroecosystem meta-analysis

Data on richness and abundance of three taxonomic groups (ants, birds, and trees) were collected in coffee agroecosystems (varying in management style) and nearby forest fragments in Mesoamerica and South America to assess the impact of coffee management intensification on biodiversity. Original data were collected in several regions/countries including Mexico (Veracruz, Chiapas, Soconusco), Guatemala, Peru, Colombia, and Nicaragua. Data were collected in several different projects by the co-owners of the data, but were generally collected between 1993-2006.

Bluefish life histories

I am interested in intra-specific variability in life histories and while at NCEAS will use bluefish, Pomatomus saltatrix, a globally-distributed and harvested species, to quantify the degree of local adaptation across populations. I will first review ecological and fisheries data from global bluefish populations and use genetic data to produce a DNA-based species phylogeny. I will then use a comparative analysis to separate life history traits across populations to account for phylogenetic effects and thus isolate environmental and fishing effects