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abstract: Indian water rights and Indian water settlements have emerged as a means for resolving long-standing despites and water rights claims. Working with and understanding water rights demands a genuine knowledge of water issues that are specific to each indigenous community as there are cultural aspects and perspectives towards water that are involved. The Gila River Indian Community is an indigenous community in south central Arizona, whose cultural and historic origins span over two millennia. Their foundation as a people was tied to the presence of the Gila and Salt Rivers, from which they freely diverted its waters through hundreds of miles of hand-dug canals, to transform the Sonoran desert into a desert oasis. There is a historical progression of this Community's water rights from when water was abundant to the time it was scarce, leading to an outright denial of a livelihood where water and farming was central to their way of life. A water rights settlement was an option that was pursued because it offered a chance for the Community to see the return of their water. The 2004 Gila River Indian Community Water Rights Settlement has been recognized as the largest Indian water rights settlement in United States history and serves as a model for future water settlements. The success of Indian water settlements in the United States has the potential, under the right political and legal conditions, to be replicated in other areas of the world where water resources are under dispute and water rights have come into conflict between indigenous and non-indigenous users. / Dissertation/Thesis / M.A. Social Justice and Human Rights 2012

Master of Science / Department of Biology / Keith B. Gido / Nonnative species represent a major threat to the continued persistence of native fishes globally, especially in the Colorado River Basin of western North America, where there are now more nonnative than native fishes. In the upper Gila River, a tributary of the Colorado, numerous nonnative fishes have established populations, and predation by these nonnatives has been linked to extirpation of native fishes under low-flow conditions at some locations. Historically, the upper Gila lacked a top piscivore, and it is unclear what mechanisms have allowed the establishment of nonnative piscivores and resultant extension in food chain length. To investigate the phenomenon of increased food chain length through nonnative introductions we explored the influence of autochthonous energy availability on nonnative predator abundance, food chain length, and abundance of other trophic levels. Predictions were that increased basal energy availability would lead to increased nonnative predator abundance and thus increased food chain length, based upon predictions from food web theory. Annual production and biomass of four trophic levels measured across six longitudinally-positioned sites were calculated between June 2008 and June 2009 to test these predictions. In addition, energy demand of trophic levels relative to energy supply was compared across sites using a quantitative food web approach, to evaluate energy limitation across trophic levels. Primary production was found to vary considerably across the upper Gila (1,677-16,276 kcal m-2 yr-1), but production and biomass of other trophic levels was not related to this gradient as predicted. In addition, food chain length demonstrated a marginally-significant negative relationship with primary production (R[superscript]2=0.42, d.f.=5, p=0.16), which was in contrast with predicted responses. These results suggest that energy availability does not appear to be a limiting factor to the production or biomass of consumers. The influence of other mechanisms on food chain length in the upper Gila River, in particular disturbance frequency and intensity, deserve further investigation.

From the Proceedings of the 1977 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 15-16, 1977, Las Vegas, Nevada / The Laboratory of Native Development, Systems Analysis and Applied Technology (NADSAT) was established to provide technical assistance to southwestern Indian Tribes as an aid in the development and use of their natural resources according to their goals and objectives. NADSAT 's role is assistance and technology transfer, with an emphasis on alternative formulation and performance analysis and communicating the technological approach to tribal decision makers. The cost-effectiveness methodology provides a coherent framework and affords a mechanism for technology transfer, which makes it a useful tool in achieving tribal goals. This method was applied to the formulation of possible alternatives for use of the land and water resources of the Gila River Basin within the San Carlos Apache Indian Reservation. Criteria for devising various alternative utilization schemes are discussed, and the advantages of the cost effectiveness methodology.