Because of declines in salmon populations in recent years, the health of salmon habitat, in particular, is the focus of many resource agencies. The objective of this study is to use GIS to predict the location of suitable habitat. With data from an extensive set of stream surveys, GIS was...
Instream flow protection in western prior appropriation states is a relatively new phenomenon.
Integrating instream flow protection measures with the older water law has been accomplished with varying
degrees of success. Idaho relies on appropriation of unappropriated water by the Idaho Water Resource Board
for protection of instream flows. Idaho's...
Ragay Gulf and Burias Pass are among the traditional fishing grounds of the
country being considered by the government for an integrated approach to fishery
management (Smith, et al., 1980; Samson, et al., 1977, World Bank, 1976). The
Department of Marine Fisheries, College of Fisheries, University of the Philippines in...
This project explores the impact of land use decisions on dune processes at the
Oregon National Guard's Camp Rilea. located on the north coast of Oregon. It
used a combined analysis of historical and modern data sources to assess the
impact of land use practices. Historical sources including the journals...
This research was designed to search for regularities in
the spatial pattern resulting from government designation of
protected areas for conservation purposes on the African continent.
Four countries were used to test for a relationship between
protected areas and vegetation types and also whether colonial
background had an impact on...
The process of land acquisition for the conservation of plants or wildlife habitat
can raise controversial issues, issues often perceived differently by the individuals and groups
involved. After the land acquisition process is completed, there is rarely an opportunity to
analyze the differing perceptions of the issues and their relative...
Energy crises have triggered increases in solar energy
use at various times in the past 2500 years. A surge of
interest in solar energy was experienced in the United
States in the late 1970's. This interest has since
declined. Still, concerns about dependency on imported
fuels, the environmental effects of...
Oyster production in the United States has declined from a leading
nineteenth century fishery to a minor, failing industry. Oystermen must now
depend on a diminished resource in an environment of competing and conflicting
coastal uses. One of the most important influences on the industry's welfare
is the sanitation of...
The old-growth forest conflict is part of the evolving debate over how to use the federal
public lands. This study documents the origins and development of the old-growth issue through
1989. The controversy began in the early 1970s when scientists initiated studies of old-growth
forests and northern spotted owls, and...
Oregon's beaches were designated public recreation areas by the 1967 Beach Law. These beaches and adjacent shorelands experience erosion and other hazards due to winter storm waves, weathering, and geologic instability. Sea cliff recession threatens older development and inadequate construction setbacks create hazards for new buildings. The typical hazard response...
This case study highlights the misappropriation of a
public natural resource. Public access to the backwaters of the
Willamette River near Peoria, Oregon has been obstructed by the
construction of berms along the river f or private benefits. Based
on field measurements, existing studies, state laws and
regulations; this paper...
Biodiversity has become an important focus of ecological and wildlife research.
However, the social aspects of biodiversity policy and regulations, specifically the public's
perspectives and values about biodiversity, have not been adequately considered. This study
examines the range of opinion about biodiversity of six groups that are potentially affected by...
The Great Salt Lake is typical of Great Basin
and other arid land saline lakes in morphological and
chemical characteristics. As with other terminal
lakes, the level of Great Salt Lake is determined by
the variable weather patterns that are typical of
arid and semi-arid regions. Because of it's flat,...
Legislated wilderness, first created in the United States with the Wilderness
Act of 1964, is being more widely established internationally. The Mavuradonha Wilderness
Area in Zimbabwe is the first wilderness set up to be managed by the local community.
Because of the importance of both conservation and rural development goals...
Native freshwater fish biodiversily is imperiled in Oregon with 36 species
or sub-species listed by the State of Oregon as sensitive, threatened, or endangered, and
9 species or sub-species listed as endangered or threatened under the federal
Endangered Species Act. Understanding and managing biodiversity is critical to its
conservation. Using...
This study examined the question of whether a big island can be divided into many smaller
islands with the same pattern of area-species curve as that of the complete island. To address
this question, this study used data on the number and distribution of amphibians and
reptiles on Puerto Rico...
The diffusion of livestock guarding dogs into American agriculture provides an example of a developed nation adopting a peasant husbandry practice. Guarding dogs, associated with transhumant husbandry, have been used to protect sheep and other livestock from predators in Eurasia for 2000 years. However, they were virtually unknown by Anglo-American...
Ecological regionalization is a form of spatial
classification, where boundaries are drawn around areas
relatively homogeneous in landscape characteristics. In the
delineation of ecological regions, or ecoregions, the process
includes the analysis of ecosystem structure and function.
Ecoregions have been developed at national and state scales
for research and resource...
present a unique modeling approach to investigate the
potential impacts of future land use alternatives on amphibian population
dynamics in two agricultural watersheds in central Iowa. An individual-based
spatially explicit population was used to predict the consequences of alternative
landscape design and management for populations of four amphibian species. The...
Management of national forests evokes controversy about the
allocation of limited resources among competing uses. A Land and Resource
Management Plan (Forest Plan) has been prepared for the Payette National
Forest. The Forest Plan describes resource management practices and the levels
of resource production at which the Forest would be...
Zimbabwe's Communal Areas Management Program For Indigenous
Resources (CAMPFIRE), is a grassroots natural resource management
initiative that promotes utilization of natural resources as an
economic and sustainable land use option in Zimbabwe's rural areas.
Currently the program focuses on wildlife utilization as a
development intervention to improve the economic livelihood...