I am an ecosystem ecologist with wide-ranging interests including how animals control ecosystem functioning, terrestrial-aquatic linkages, global biogeochemical cycles, and fisheries conservation. My research focuses on: 1) Understanding how ecological diversity leads to productivity and stability in dynamic human-natural resource systems, using global inland fishery systems as a model. 2) Sources and transfer of carbon through aquatic food webs. 3) How animals interact with their physical environment and each other to control aquatic ecosystem functions such as primary productivity and nutrient cycling. 4) Stable isotope techniques to elucidate biogeochemical processes at local to global scales. 5) Applying hierarchical and Bayesian statistical modeling techniques to biogeochemical data. A large component of my work involves using geochemical tracers to gain insight into how nutrients and energy flow at local to global scales.

Developed in the 1950s, this model exemplifies the liberal development ideology, as opposed to structuralist theory, Under the model, all countries develop in a five-stage process. Determinism and possibilism in geography pdf notes for ipad. The development cycle is initiated by investment in a takeoff industry that allows the country to grow a comparative advantage, which sparks greater economic gain that eventually diffuses throughout the country's economy. Drawbacks to this model include its not identifying cultural and historic differences in development trajectories because it is based on North American and western European development histories.

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I take an interdisciplinary approach to science and borrow among seemingly disparate disciplines. Currently fieldwork in the lab is focused either in the or Puget Sound. The long-term goal of our Mekong research is to quantify the ecological links within the Mekong-Tonle Sap Lake food web to understand the combination of factors that maintain this highly productive ecosystem. In the Puget Sound we are studying sources and fate of anthropogenic nitrogen in rivers and how metabolism and biogenic gas fluxes in the Elwah change after dam removal. Interested in furthering your education in my lab? Please see my page. Courses • QSCI 381: Introduction to Probability and Statistics (Autumn) • FISH 447: Watershed Ecology (Spring) Areas of Expertise • Ecosystem ecology • Biogeochemistry • Freshwater fisheries • Food webs • Stable isotope ecology Community Engagement and Awards Advisory Boards • International advisor, Mekong River Commission Fisheries Programme Awards • 2012 G.E.

Likens Award for an outstanding paper by an early career scientist. Ecological Society of America Biogeosciences Section. Selected publications • In press. Holtgrieve, N. Cooperman, N. Food webs and the sustainability of indiscriminate fisheries.

Canadian Journal of Fisheries and Aquatic Sciences. Holtgrieve; C. Limnology & Oceanography 2014;59(5):1666-1678.

Holtgrieve; M. 2013;PLoS ONE, 8(8):e71395. Aqua air v100 pressure tank manuals pdf. Holtgrieve; D. Schindler; W. Gregory-Eaves; S. 2011; Science 334:1545–1548. Holtgrieve; D.

Schindler; T. Branch; and Z. Limnology and Oceanography 2010;55(3):1047–1063.