

@mastersthesis {7031,
	title = {An ecohydrological approach for riparian biodiversity conservation in large tropical river ({BL})},
	year = {2000},
	note = {U131455},
	school = {University of Birmingham (United Kingdom)},
	type = {phdPh.{D}.},
	address = {Ann Arbor},
	abstract = {This thesis develops a conceptual ecohydrological model for explaining riparian forest biodiversity in the Orinoco River basin that can be applied to other large tropical river basins. It focuses on explaining three levels of riparian forest diversity: alpha (within - habitat), beta (between - habitats) and gamma (regional or landscape level). Following a spatial analysis integrating two approaches, fluvial hydrosystem and ecogeography, the thesis is based on studies at local and regional scales (within a basin and between basins). The within-basin analysis is conducted in the Caura River, a tributary of the Orinoco River draining the Guiana Shield in Venezuela. It concentrates on lateral and longitudinal gradients of woody species abundance and distributions. Relationships with riparian environment variables are demonstrated. The between - basins analysis compares (i) alpha diversity and upstream gradients of distribution of species indicators of white-water types at confluence zones in different tributaries of the Orinoco, and (ii) distributions of Ingeae (Leguminosae) in selected black-water and white-water rivers of the Orinoco and Amazon river basins. The model proposes functional units, functional sectors and functional riparian landscapes for the scaling up of potential and real values of species diversity within a basin. Confluence zones are found of primary importance for conserving riparian forest biodiversity. Also the redundancy of riparian sectors and landscapes is found important when evaluating areas for in situ riparian forest biodiversity conservation.},
	keywords = {(UMI)AAIU131455, 0388:Hydrologic sciences, Bibliographies, Earth sciences, Hydrologic sciences, Psychology{\textendash}Abstracting, Statistics},
	url = {http://search.proquest.com/docview/301556671?accountid=14270},
	author = {Rosales, J}
}
