As my career developed, I became more engaged in straight-out ecological research because stable isotope biogeochemistry was becoming increasingly accepted by the ecological community. My goal as a stable isotope ecologist is to learn as much as I can about modern ecosystems on a global scale so that I can use that knowledge to interpret fossil ecosystems where direct observation of the plants, animals, and microbes is not possible. I have worked in most of the major biomes: deserts, temperate deciduous forests, grasslands, alpine, arctic, taiga, tundra, temperate rain forests, woodlands, freshwater wetlands, estuaries, coastal wetlands, lakes, marine ecosystems, and...

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