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Titolo:
USING GIS TO PRIORITIZE LAND CONSERVATION ACTIONS - INTEGRATING FACTORS OF HABITAT DIVERSITY, LAND OWNERSHIP, AND DEVELOPMENT RISK
Autore:
WRIGHT RG; TANIMOTO PD;
Indirizzi:
UNIV IDAHO,BIOL RESOURCES DIV,IDAHO COOPERAT FISH & WILDLIFE RES UNIT,US GEOL SURVEY MOSCOW ID 83844
Titolo Testata:
Natural areas journal
fascicolo: 1, volume: 18, anno: 1998,
pagine: 38 - 44
SICI:
0885-8608(1998)18:1<38:UGTPLC>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
BIODIVERSITY; CRITERIA; RESERVES; IDAHO; PARKS;
Keywords:
ECOLOGICAL DIVERSITY; GIS; LAND ACQUISITION; LAND PLANNING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
R.G. Wright e P.D. Tanimoto, "USING GIS TO PRIORITIZE LAND CONSERVATION ACTIONS - INTEGRATING FACTORS OF HABITAT DIVERSITY, LAND OWNERSHIP, AND DEVELOPMENT RISK", Natural areas journal, 18(1), 1998, pp. 38-44

Abstract

Public land management agencies and conservation organizations often are interested in purchasing or acquiring conservation easements on small land parcels. Time and money limitations, however, often make it difficult to evaluate the ecological importance of such lands. This paper presents one method to objectively measure and rank the ecological importance of specific land parcels. Our method is based on a detailedhabitat diversity map derived from a similarly detailed vegetation map. The land parcels evaluated were located in the Stehekin River Valley of Washington, within the boundaries of Lake Chelan National Recreation Area, which is part of the North Cascades National Park Complex. We overlaid the vegetation map with a grid of cells 16 m(2). For each grid cell, a habitat diversity value was determined by summing the number of different habitat types located within a 1-ha(2) area of the cell. This analysis was repeated for each grid cell in the study area, and each cell was assigned a habitat diversity value. We assumed that because of the small sizes of the land areas involved, habitat that contained a mixture of different plant species was important to the vertebrate species of the study area. Thus, the 10 parcels with the highest habitat diversity values that were privately owned and yet undevelopedwere considered priority candidates for acquisition if they became available for purchase. In addition, the close proximity of nine land parcels to the road system in the valley or to the Stehekin River was used to increase the rank for acquisition priorities on land parcels that had high habitat diversity values. This method of determining habitat diversity value is a helpful quantitative tool for use by land managers in determining acquisition and exchange priorities. Further investigation is needed to compare high priority sites determined from habitat diversity values to sites selected from ground surveys.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 14:12:00