Global ETD Search
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Showing 1 to 5 of 5 for “"life zone"”.
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Calculating the global flux of carbon dioxide into groundwater
… and precipitations according to the Holdridge life-zone classification system, and regressions between PCO2, biotemperature, and precipitation were used to provide estimates for regions of the world that lacked PCO2 measurements. The fluxes were mapped on a generalized Holdridge life-zone map, …
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Flood Survival Strategies of Overwintering Snakes
… flood and frost-free, referred to as the “life zone,” where snakes survive winter. I analyzed 11- winters of hibernation habitat data and 18-yrs of population mark-recapture data to assess the effects of the first flood event on an endangered Massasauga population. Following the flood …
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Calorespirometric Evidence for Adaptation of Blackbrush and Shadscale to Growth Season Temperatures in Cold Deserts
… the Great Basin and the Colorado Plateau in the life zone between 800 and 2000 m elevation. Tissue and seeds from the two species were collected from several localities. Metabolic heat and carbon dioxide production rates were measured with calorespirometry on tissue from field-grown plants and on …
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Evaluation of forest site potential in the Northwest Department of the Republic of Haiti
… on several parameters. The Holdridge ecological life zone model was used to make the initial classification of sites within the study area. Soil and vegetation surveys were used to verify, subdivide, and provide additional description of the life zones. Trial plantations were established in the …
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A Multi-scale Analysis of the Potential Impacts of Rapid Climate Change on Forest Lands Managed by the Department of Defense in the US
… activities and military missions. The Holdridge Life Zone system was used to model the geographic extent of present and future climatic envelopes that influence the distribution of forest biomes and tree species in the coterminous U.S. The Holdridge system integrates mean annual temperature, mean …