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Full Issue, Vol. 58 No. 3 Great Basin Naturalist Volume 58 Number 3 Article 12 7-1-1998 Full Issue, Vol. 58 No. 3 Follow this and additional works at: https://scholarsarchive.byu.edu/gbn Recommended Citation (1998) "Full Issue, Vol. 58 No. 3," Great Basin Naturalist: Vol. 58 : No. 3 , Article 12. Available at: https://scholarsarchive.byu.edu/gbn/vol58/iss3/12 This Full Issue is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Great Basin Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. T H E GREAT BASIN naturalistnaturalist lremoe A VOLUME 58 n2naN 3 JULY 1998 ML BEAN LIFE SCIENCE MUSEUM BRIGHAM YOUNG university GREAT BASIN naturalist httpwwwlibbyuedunms FAX 8013783733801 378 3733 editor alsistaassistaassistantnt editor richardwbaumannRICHARD W BAUMANN NATHAN M SMITH 290 MLBM 190 MLBM PO box 20200 PO box 26879 brigham young university brigham young university provo UT 84602020084602 0200 provo UT 84602687984602 6879 8013785492801 378 5492 8013786688801 378 6688 emailE mail richardricharclbaumannbyuedubaumannbyuedu emailE mail nathan smithbyuedu associate editors JAMES C CALLISON JR PAUL C MARSH department of environmental technology center for environmental studies arizona utah valley state college state university tempe AZ 85287 orem UT 84058 JERRY H SCRIVNER BRUCEDBRUCE D ESHELMAN department of biology department of biological sciences university of ricks college wisconsin whitewater whitewater WI 53190 rexburgredburgRexburg ID 83460110083460 1100 JEFFREY J JOHANSEN STANLEY D SMITH department of biology john carroll university department of biology university heights OH 44118 university of nevada las vegas laslasvegaslosvegasvegas NV 89154400489154 4004 BORIS C kondratieff department of entomology colorado state ROBERT C WHITMORE university fort collins CO 80523 division of forestry box 6125 west virginia university Morganmorgantowntown WV 26506612526506 6125 editorial board richard A heckmann chair zoology berranjerran T flinders botany and range science duke S rogers zoology bruce A roundy botany and range science richard R tolman zoology larry L st clair botany and range science H duane smith monte L bean life science museum all are at brigham young university ex officio editorial board members include steven L taylor college of biology and agriculture and richard W baumann editor great basin naturalist the great basin naturalist founded in 1939 is published quarterly by brigham young university unpublished manuscripts that further our biological understanding of the great basin and surrounding areas in western north america are accepted for publication subscriptions annual subscriptions to the great basin naturalist for 1998 are 25 for individual sub- scriscribersbers 30 outside the united states and 50 for institutions the price of single issues is 12 all back issues are in print and available for sale all matters pertaining to subscriptions back issues or other busi- ness should be directed to the editor great basin naturalist 290 MLBM PO box 20200 brigham young university provo UT 84602020084602 0200 scholarly exchanges libraries orotorotberor otherherber organizations interested in obtaining the great basin naturalist through a continuing exchange of scholarly publications should contact the exchange librarian 6385 HBLL PO box 26889 brigham young university provo UT 84602688984602 6889 editorial production staff joanne abel technical editor emailE mail jyaemailbyuedu copyright 0 1998 by brigham young university ISSN 001736140017 3614 official publication date 1 july 1998 6986 98 750 26629 the great basin naturalist PUBLISHED AT PROVO UTAH BY MLM L BEAN LIFE SCIENCE MUSEUM BRIGHAM YOUNG university ISSN 001736140017 3614 VOLUME 58 31 JULY 1998 no 3 gleatgreat basin naturalist 583 0 1998 appp 199 216 GAP ANALYSIS OF THE vegetation OF THE intermountain semidesertSEMI DESERT ECOREGION david A stornslstoms1 frank W davisi kenneth L drieseldnese2driese2 kelly M Cassidy 3 and michael P murray4murraya ABSTRACT A conservation gap analysis was conducted for the intermountain semidesertsemi desert ecoregioneco region to assess the representation eflandoflandof land covelcover types within areas managed primarilypnmai ilyliy for diversitybiobiodiversity objectives mapped distributions of plant communities were summarized by land management status categories the total amount of land permanently pro- tected in the ecoregionecoiegionecoregion is 4 and most types that are characteristic of the regionlegion have 10 of 48 land cover types 20 weiewere found to be particularly vulnerable to potential loss 01or degradation because of low level ofofieofleofiepresentationpresentationrepresentation in bio diversity management areas and the impact of expected land use activities gap analysis data and findings will be useful in providing a regional perspective in project impact assessment and future conservation planning within this ecoregionecoiegioneco region key words gap analysis land cover land management conservation assessment national vegetation classification system alliance in recognition of the alarming but largely species noss 1987 franklin 1993 oriansorlans unmeasured conversion and degradation of 1993 while this approach sounds straightfor- native habitat many conservation biologists ward in principle a lack of comprehensive have recommended protecting representative and consistent data on the extent location samples of all natural ecological communities and management of ecological communities as a goal for preserving biological diversity makes it quite challenging to implement fun- eg shelford 1926 committee on the study damentalda questions have often been beyond of plant and animal communities 1950 51 our capacity to answer with any confidence austin and margules 1986 shafer 1990 scott for example how well are community types et al 1993 underlying this coarse filter represented in areas specially managed for the approach is the assumption that protecting preservation of diversitybiodiversitybio ecosystems or habitats will simultaneously scott et al 1993 outlined a gap analysis confer protection on most plant and animal methodology to identify the underrepresented institute foifolfor computational eaithearth system science university of california santa barbarabalbara CA 93106 2departmentepaitment of botany university of wyoming laramieLa ramieiamie WY 82071 swashmgton3washingtoncwashington cooperative fish and wildlife researchRe seaich unit university of washington box 357980 seattle WA 98195 idaho cooperative fish and wildlife research unit university of idaho moscow ID 83844 199 200 GREAT BASIN naturalist volume 58 plant communities or gaps in the representa- program reviewers zube 1994 dellasala et al tion of biological diversity in areas managed 1996 very little land in the ISD ecoregionecoregion has primarily foiforboibolhorbor longtermlong term maintenance of native been designated for maintenance of biodiver wildlife populations and natural ecosystems sity while potentially conflicting land uses such this approach uses medium scale mapping of as grazing and cultivation are extensive land cover and land management as the only enough undeveloped habitat remains how- practical solution for assessing the conserva- ever for preactiveproactiveproactive conservation action to be tion status of diversitybiodiversitybio across ecological effective thus the ISD ecoregionecoregion makes a regions covering hundreds of thousands of representative case study that could be applied squalsquaree kilometers originating as a pilot study to other regions throughout the western US in idaho scott et al 1993 caicco et al 1995 planning for conservation and ecosystem man- gap analysis has been expanded into a national agement within this ecoregionecoregion is underway by gap analysis program GAP coordinated by the nature conservancy sandy andelman the biological resources division of the USU S personal communication oregon biodiver geological survey formerly the national bio- sity project vickerman 1996 and interior logical serviceSeivice initial published results have columbia basin ecosystem management pro- focused on analyses at the state level for idaho ject a joint effort by the US forest service caicco etalet al 1995 utah edwards et al 1995 and bureau of land management quigley et and wyoming merrill et al 1996 since its al 1996 BLM is considering wilderness pro- inception however GAP has aimed to provide posals in wyoming merrill et al 1996 propos- a national conservation assessment based on als for new wilderness areas in idaho merrill ecological rather than political planning regions et al 1995 and wyoming merrill et al 1996 scott etetalal 1993 and for new national parks wright et al 1994 the objective of this paper is to report the wright and scott 1996 are being discussed A results of the nationnatiorsots s first multistatemultimultistagestate gap regional gap analysis can add valuable infor- analysis of plant communities of the intermoun mation for all of these planning programs taintam semidesertsemi desert ISD ecoregionecoregion fig 1 as currently delineated in the USU S forest service s intermountain semidesertSEMI DESERT ECOMAP program ECOMAP 1993 bailey ECOREGION 1995 ownership and management status of US forest service s national hierarchi- land cover types within the ISD ecoregionecoregion the cal framework of ecological and 2 subregions
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