Lowland tropical forests are of special concern for they are the most diverse and the most ecologically complex of all terrestrial ecosystems (Myers 1984), and their destruction would significantly reduce global biological diversity (Turner & Corlett 1996). Forests around the gl…
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Oxygen minimum zones (OMZs) are areas in which midwater oxygen concentration can be significantly lower than in non OMZ areas at comparable depths. OMZs are of great interest because of the limits oxygen availability places on life. The potential for OMZ expansion with warming o…
My dissertation investigates the sea-level changes, large perturbations in the oceanic carbon cycle, and enrichments and distribution of iridium (Ir) across the Cretaceous/Paleogene (K/Pg) boundary (∼66 Ma). Biostratigraphic, lithofacies, and sequence stratigraphic analyses of t…
The goal of my dissertation has been to test hypotheses for the origins of high-latitud eclimatic warmth and the subsequent global cooling in the middle Miocene, aimed primarily at understanding the oceanographic evolution of the Pacific realm. I attempted to constrain the exten…
Resource limitation drives fitness-related decisions and constrains the ability of organisms to invest in energetically demanding life history stages. Environmental factors (e.g., temperature) play an important role in affecting resource availability and quality which can downst…
Tectonic models of continental orogens seek to reconstruct the deformation processes associated with large-scale continental collision events. Geographically broad field surveys provide two spatial dimensions, and geochronology provides a third temporal dimension. The missing fo…