sceni¢ recreational and geological re. source~ However, the biological resources that would be protected by these proposals have received relatively little conslderattort We used the U.X Fish and Wildlife Service's Gap Analysis Project databases to evaluate the vegetation types contained in each proposal The scale of analysis was an ecoregion with the proposals falling within three of six ecoregtons that encompass Idah~ Databases included vegetation type, land ownership, and land protection statu~ which were analyzed using a geographic information systent Vegetation types were used as surrogates for information on the distribution of other biological resources (L¢, biodiversity). A conservation strategy was evaluated that would preseme at least 10% of each vegetation type in an ecoregiorL Only 15% of the vegetation types in the three ecoregions were protected under this crtUriorL The four pro-Paper submttted August 24, 1992; revised manuscript acceptedJu~ 12, 1993. Una evaluaci6n ecoldgica de nuevas ireas de conservaci6n propuestas en Idaho: Evaluando parques nacionales propuestos en Idaho Resumen: Cuatro nuevas dreas en el estado de ldal~ U.S.A, hart sido propuesta~ por distintos grupos intereresados en el tera~ para ser desiMum~ como Parqu~ Nacionale~ Las cuafro dreas promedian 220.000 ha y contienen recursos bio-16gico~ escdnicog recreacionales y geol6gicos importante.~ Sin embarg~ los recursos btol6g~cos que sedan protegldos por esas propuestas ban recibldo poca atenct6tt Nosotros usamos la base de datos del "Gap Analysis Project" del "U.£ Fish and Wildlife Services" para evaluar los tipos de vegeta-ci6n contenidos en cada propuestct La escala de andlisis fue la de eco-regi6n con las propuestas contenidas en tres de las seis eco-regiones que abarcan Idaho. La base de datos incluyd tipos de vegetact6~ tenencta de tterras y el estado de protecct6n de los tlerrag tales datos fueron analizados usando sistemas de informaci(m geogrdflco.~ Los tipos de vegetaci6n fueron usados como substttutos de informaci6n sobre la distribuci6n de otros recursos bioldgicos (ge, biodiversidad). Se evalu6 una estrategia de cons~6n que pres~ por lo menos el 10% de cada ttpo de vegetaci6n en cada ecoregi6rt S6lo el 15% de los tipos de vegetacidn en 207 208 Proposed Idaho National Parks Wrisht et al.posals added little to this figure because 67-78% of the veg. etation types found in the proposals were already protected elsewhere in each ecoregiorL Between 16--30% of the land areas in the proposals provided protection for vegetation types that were prevtously unprotected We increased the size of each proposal by including vegetation types in a 15 km zone around each proposal in an attempt to enhance pro. tectiorL None of the proposals could be feasibly modified to reach the 10% protection goal for all of the vegetation typeg Howev~, the protection provided by each proposal could be enhanced to varying degrees with the addition of relatively few hectares to their land are~z Although national parks throughout the world play an import...
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