Full Issue, Vol. 56 No. 3
Total Page:16
File Type:pdf, Size:1020Kb
Great Basin Naturalist Volume 56 Number 3 Article 17 7-26-1996 Full Issue, Vol. 56 No. 3 Follow this and additional works at: https://scholarsarchive.byu.edu/gbn Recommended Citation (1996) "Full Issue, Vol. 56 No. 3," Great Basin Naturalist: Vol. 56 : No. 3 , Article 17. Available at: https://scholarsarchive.byu.edu/gbn/vol56/iss3/17 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 GREATG EAT baslBASIBASIN naturalistnaturalist VOLUME 56 n2na 3 JULY 1996 BRIGHAM YOUNG university GREAT BASIN naturalist editor assistant editor RICHARD 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 8013785053801 378 5053 8013786688801 378 6688 FAX 8013783733801 378 3733 emailE mail nmshbll1byuedu associate editors MICHAEL A BOWERS PAUL C MARSH blandy experimental farm university of center for environmental studies arizona virginia box 175 boyce VA 22620 state university tempe AZ 85287 J R CALLAHAN STANLEY D SMITH museum of southwestern biology university of department of biology new mexico albuquerque NM university of nevada las vegas mailing address box 3140 hemet CA 92546 las vegas NV 89154400489154 4004 JEFFREY J JOHANSEN PAUL T TUELLER department of biology john carroll university department of environmental resource sciences university heights OH 44118 university of nevada reno 1000 valley road reno NV 89512 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 berranjerran T flinders chairman botany and range science duke S rogers zoology wilford M hess botany and range science richard R tolman zoology all are at brigham young university ex officio editorial board members include steven L taylor college of biology and agriculture H duane smith director monte L bean life science museum 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great basin naturalist the great basin naturalist founded in 1939 is published quarterly by brigham young university unpublished manuscripts that further our biological understanding of the great basinundbasin andund surrounding areas in western north america are accepted for publication subscriptions annual subscriptions to the great basin naturalist for 1996 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 or other 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 jan spencer assistant to the editor copyright 0 1996 by brigham young university ISSN 001736140017 3614 official publication date 26 july 1996 7967 96 totso750 19016 the great basin naturalist PUBLISHED AT PROVO UTAH BY BRIGHAM YOUNG university ISSN 001736140017 3614 VOLUME 56 31 JULY 1996 no 3 great basin naturalist 563 0 1996 appp 191 196 biogeographic significance OF LOW ELEVATION RECORDS FORporforneotomaNEOTOMA CINEREA FROM THE NORTHERN bonneville BASIN UTAH donald K GraysoGraysongrassonnl1 stephanie D Livingston 2 eric Rickartrickartsrickart33 and monson W shaver 1114 ABSTRACT the existence of low elevation populations of neotoma cinerea in the northern bonneville basin shows either that these mammals can survive many thousands of years in xericxene habitats or that they can move across bencxericxenc low- lands far more readily than has been appreciated or both current models of great basin small mammal biogeography are far too static to encompass properly the interaction of the wide range of geographical and biological variability that has produced the modern distribution of those mammals that have for several decades been treated as montane within the great basin key words great basin biogeography island biogeography neotoma cinerea mammals ever since J H brown s insightful analyses coherence that has been assigned to it here of great basin small mammal biogeography we add to that growing body and call for a brown 1971 1978 see also lomolino et al more dynamic view of great basin small mam- 1989 geographersbiogeographersbio have treated the bushy mal historic biogeography tailed woodratwoodral neotoma cincinereaoincineredmineredered as a member of an assemblage of small mammals that is cur- NEOTOMA CINEREA ON rently isolated on great basin mountains the HOMESTEAD KNOLL UTAH composition of this assemblage is of particular importance because it has been used to gener- located a few km west and south of great ate and test hypotheses about the past and salt lake in north central utah the lakeside future of great basin montane mammals eg mountains are formed from a complex of north grayson 1987 1993 patterson 1990 cutler trending hills ridges knolls and small moun- 1991 mcdonald and brown 1992 murphy and tains fig 1 the northwestern most spur of weiss 1992 grayson and livingston 1993 this complex is homestead knoll a low maxi- however there is a growing body of data that mum elevation 1615 m rocky promontory suggests that this group of mammals lacks the that is devoid of active springs and permanent iburkeaburkeurke memorial museum box 353010 university of washington seattle WA 98195 quaternary sciences center desert research institute box 60220 reno NV 89506 sutah museum of natural history university of utah salt lake city UT 84112 4uauutahh geological survey 2363 south fooothill drive salt lake city UT 84109 191 192 GREAT BASIN naturalist volume 56 M s F t 0 0 0 greatgreot homestead CD cavecove saltsolt lakeloke z 0 N A 35 cl KM IF fig 1 location of homestead cave within the northern bonneville basin streams and that is separated from other parts homestead knoll is dotted by a number of of the lakeside group by valleys whose maxi- caseseavescaves one of which homestead cave sits on mum elevations do not exceed 1465 m the northwestern edge of the knoll at an eleva- the barren playa of pleistocene lake bon- tion of 1406 ra fig 2 approximately 11 m neville is located to the immediate west and wide and 6 m high at its mouth this 25 m northwest of homestead knoll vegetation of deep eavecavepavegave has since 1992 been the focus of the knoll is dominated by shrubs and grasses interdisciplinary paleopaleoecologicalecological work funded although there are a few scattered utah junipersjunijuniperuspers by the department of defense with D B juniperus osteosperma on its highest reaches madsen of the utah geological survey 3 most prominent among the shrubs are authors of this paper DKG SDL and MWS atriplex confertifoliaconfertifolia tetradymia spinosa and have been involved with the excavation and tetradymia glabrataglabrateglabrata artemisia dentatatritridentatatridentate is analysis of a deep sequence of vertebrate present along seasonally moist drainages while remains from this site to provide background artemisia spinescensspinescentspinescens chrysothamnus sp and data for the analysis of the mammalian compo- sarcobatus vermiculatus are present but un- nent of the excavated faunahaunafaunal we conducted a common above the flanks of the knoll artemisia brief 270 trap night small mammal survey in nova occurs on those flanks as does Ceratceratoidesoides the vicinity of homestead cave in june 1995 lanata while S venniculatusvermiculatus becomes increas- with 1 exception the results of this survey ingly abundant as the valley bottoms are were quite predictable trapping success was approached we made no attempt to identify low with 3 species dipodomys ordiiordia 3 indi- the grasses that form the understory beneath vidualsvi peromyscus maniculatus 11 individu- the shrubs but cheatcheatgrassgrass bromus tectoriumtectorumtectorum als and neotoma lepidacepida 6 individuals com- and perhaps B rubens is extremely abundant prising nearly the entire trapped assemblage on the flats beneath the knoll the 1 exception however was remarkable we 19961 low ELEVATION neotoma CINEREA 193 1 1 111n41 22 1 1 14 rl51 1 L 7 C 0 aw7w N 3 v d W 4 17 Q 4 ob fig 2 location of homestead cave white arrow on homestead knoll the prominent terraces represent provo post provo regressive and stansbury beaches left by the waters of pleistocene lake bonneville took a single neotoma cinerea from the back of lection at the utah museum of natural his- homestead cave itself tory university of utah for additional records because this individual was live trapped of this species from other low elevation set- and released we cannot report its age or sex or tings in the northern bonneville basin we provide standard measurements even though were quite successful in this search we do not have a voucher specimen we do a locomotive springs the only previously have an excellent videotape of the animal taken published low elevation record for