Jeff S Jenness

Jeff S Jenness
Jenness Enterprises

About

24
Publications
14,317
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1,752
Citations
Citations since 2016
3 Research Items
1101 Citations
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2016201720182019202020212022050100150
2016201720182019202020212022050100150
2016201720182019202020212022050100150

Publications

Publications (24)
Article
Full-text available
Since the initial experiments nearly 50 years ago, techniques for detecting caves using airborne and spacecraft acquired thermal imagery have improved markedly. These advances are largely due to a combination of higher instrument sensitivity, modern computing systems, and processor intensive analytical techniques. Through applying these advancement...
Technical Report
Full-text available
This publication was produced in recognition that there is a growing need to increasingly transfer land-based/coastal aquaculture production systems further offshore as a result of the expected increases in human population, competition for access to land and clean water needed to increase the availability of fish and fishery products much needed f...
Article
Full-text available
The Mexican spotted owl (Strix occidentalis lucida) is widely but patchily distributed throughout the southwestern United States and the Republic of Mexico (Gutiérrez and others 1995, Ward and others 1995). This owl typically occurs in either rocky canyonlands or forested mountain and canyon systems containing mixed-conifer or pine-oak (Pinus spp....
Article
Full-text available
Landscape connectivity, the extent to which a landscape facilitates the movements of organisms and their genes, faces critical threats from both fragmentation and habitat loss. Many conservation efforts focus on protecting and enhancing connectivity to offset the impacts of habitat loss and fragmentation on biodiversity conservation, and to increas...
Conference Paper
Background/Question/Methods Movement patterns for some organisms are significantly constrained by topography, and in some situations topography can be the most important factor in determining least-cost paths across the landscape for organisms. Amphibians in desert regions are constrained in their surface movements because of thermal reaction nor...
Chapter
Spatial information systems (SIS) is a term that describes a wide diversity of concepts, techniques, and technologies related to the capture, management, display and analysis of spatial information. It encompasses technologies such as geographic information systems (GIS), global positioning systems (GPS), remote sensing, and relational database man...
Article
Full-text available
Models of individual movement can help conserve wide-ranging carnivores on increasingly human-altered landscapes, and cannot be constructed solely by analyzing the daytime resting locations typically collected in carnivore studies. We examined the movements of 10 female and 7 male cougars (Puma concolor) at 15-min intervals during 44 nocturnal or d...
Article
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There are many reasons to want to know the true surface area of the landscape, especially in landscape analysis and studies of wildlife habitat. Surface area provides a better estimate of the land area available to an animal than planimetric area, and the ratio of this surface area to planimetric area provides a useful measure of topographic roughn...
Article
Full-text available
The main objective of this study is to classify landforms within a watershed using advanced spatial statistics and image processing algorithms to identify and extract local geomorphometric properties of Digital Elevation Models (DEMs) with 20 m resolution. This study presents a customized GIS application for semi-automated landform classification b...
Technical Report
Full-text available
The African Water Resource Database (AWRD) is a set of data and custom-designed tools, combined in a geographic information system (GIS) analytical framework aimed at facilitating responsible inland aquatic resource management with a specific focus on inland fisheries and aquaculture. It thus provides a valuable instrument to promote food security....
Article
Full-text available
In 1993, the US Fish and Wildlife Service listed the Mexican spotted owl (Strix occidentalis lucida) as threatened, in part because of the rising threat to its habitat from stand-replacing wildfires. In 1997, we surveyed 33 owl sites that, in the previous four years, had burned at various levels ranging from light controlled burns to stand-replacin...
Article
Full-text available
The African Water Resource Database (AWRD) is a Geographical Information System (GIS) that is an expansion and enhancement of the work contained in ALCOM's Water Resource Database (WRD) for the SADC Region, which has been extended to cover the entire African continent. The core datasets which populate the AWRD include: various depictions of surface...
Article
Full-text available
The CorridorDesigner project is funded by a generous grant from the Environmental Research, Development and Education for the New Economy (ERDENE) initiative from Northern Arizona University. Our approach was initially developed during 2001-2006 for South Coast Missing Linkages, a set of 16 linkage designs in southern California (draft & We especia...
Article
Full-text available
"May 2000." Thesis (M.S.)--Northern Arizona University, 2000. Includes bibliographical references (leaves 66-75) and abstract.

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Projects (4)