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Steve J William L. Halvo At?» 5 O I997 Cathy Steve J Wil liam L . Halvo 97 5 o i9 C ath Schw at"" y Thom as Ke Technical Rep ort United States G eological Survey Cooperative Park Studies Unit ni versit of Arizona 0 Tucson Ari The U y , zona Sen sitive Plan ts of San Nicol s Isl n a a d , California (Phase 2) Steve Junak W il liam L . Hal v ors on Cathy Schwemm Thomas Keeney Techni R 7 cal ep ort No . 5 December 1 996 United States Geological S urvey Cooperative Park Studies Unit School of Renewable Natural Resources 1 25 Biological Sciences East The University of Ari zona Tu Ari a 857 2 1 cson , zon 1 2 1 2 Mission C anyon Ro ad 1 901 Spinnaker Dri ve a ta arb ara CA 93 105 ura CA 93001 S n B , Vent , Hal r T ma William L . vo son ho s Keeney USGS Coope rative Park S tudies Unit Environmental Division The Uni versity of Ari zona Naval Air Weapons Station 1 25 i l i al i Ea t i t u u CA 93042 B o og c Sc ences s Po n M g , Tu AZ 857 2 1 cson , Unit Pe rs onne l Hal r it L a r illi am L . W vo son , Un e de l ar E l i t il . a b Cec R Schw e , Rese ch co og s E l i t t r . n tt Pe e S Be ne , co og s mann E l i t i a l . Kunz M ch e R , co og s Hi tt i l i al i T i ian at rin L . K he e e , B o og c Sc ence echn c t A ta t a . r ar ni i Jo n M Fo d , Rese ch U ss s n i al i ta t l ria . Maender E it r A G o J , d o ss s n ar N . r r tar M y G eene , Sec e y l Tod A . r ir r r e i c ia i G ego e , Wo d P oc ss ng Spe st (520) 67 0— 6885; ( 520) 62 1 - 1 1 7 4 ; FTS ( 520) 67 0- 6 8 85 The Coope rative Park S tudies Uni t at The University of Ari zon a (CPSU/UA) was established 1 6 Au u t 1 7 a a r t g s 9 3 as unit in the National Park Se rvice ( NPS) . By ction of Sec e ary of the Interi or ru a bi the r ar u i NPS and ral t r I ri r a i was ran rr B ce B b tt , ese ch f nct on of seve o he nte o genc es t sfe ed to a l r a t d a the Nati al i l i al r ic NBS on 1 2 N mb r 1993 . At a new y c e e gency , on B o og c Se v e ( ) , ove e th t im the CPS / t On 1 O r 1 6 U US and u it r n l r tra rr o the a . be 99 t e , n pe son e we e nsfe ed new gency cto , NBS m th a e l i al ur . bec e B iologic al Resources Division (B RD) of the U S . Geo og c S vey The CPS U/UA provides a multidisciplinary approach to studies in natural and c ultural sciences . The u i u a n t cond cts an d coo rdin ates research that is funded by various agencies . Pri ncipal Ariz on cooperators include the School of Renew able Natural Resources and the Department of Ecology and E lu i ar The t r Ar l i al and vo t on y Biology of The University of Arizon a. Wes e n cheo og c Conservation Center (NPS) and the School of Renew able Natural Resources (UA) provide a mini tra i a i t t t l ac ul or r ar as ia a i m at d s t ve ss s ance . Uni scien ists ho d f ty ese ch soc te ppo nt ents the u i r n ve sity . The Technical Report series allows dissemin ation of information about high priority resource man a m t u i r tai i i rabl i rm a i ge en q est ons . The series allows the flexibili ty of e n ng cons de e nfo t on on u i m r ul and a li ati a f r in rma i i ubli a i . st dy des gn , ethods , es ts , pp c ons not f o ded fo l sc ent fic p c t ons T i al r r are i um s in i ri u uall ain echn c epo ts g ven peer review an d editing . Doc ent th s se es s y cont i nformation of a prelimin ary n ature and are prepared primarily for use by NB S and NPS r n l and rat r mm r ial r u i u pe so ne coope ors . Mention of trade names o co e c p od cts does not const t te r m or use b endo se ent y USGS . r in i ri are r As l as u l las i ma Repo ts th s se es p oduced in limi ted quantities . ong the s pp y ts , cop es y tai — r m S CPSU/U A 1 25 i l i al i E a The i r it Ari a, be ob ned f o USG , B o og c Sc ences st , Un ve s y of zon Tu AZ 857 2 1 . Th cson , is rep ort was p rin ted on recy c led p ap er . Co ntents List of Figures List of Tables Acknowledgements 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O S pecies Accounts ’ Ap han is ma blito zd es ' Arte mis ia ne s io nca ' Al n p lex p acifica Ho rde um in te rcedens v i ula re Lep id ium oblong um ar . ns Nas s e lla ce m ua Nas s e lla Iep ida Nas s e lla p ul chra rach loba Oroban che p a ris hii sub Sp . b y 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Trifo lium p a lme ri : iti E a r Thr a and ar Taxa Appendi x Defin on of nd nge ed , e tened , R e iii Fig ures The 8 ali r ia a n l la an d A a ai la Figure 1 . C fo n Ch n e Is nds dj cent M n nd San Ni la la ali r ia ur 2 . Fig e co s Is nd , C fo n h n is ma blitoid es i ra li Habi i ur 3 . A a an a arb ara la a i r ia 22 F g e p , Show ng Sp w ng t , S t B Is nd , C l fo n han isma blitoid es an a arbara la ali r ia i ur 4 . A F g e p , S t B Is nd , C fo n i A han isma blitoides San Ni a la — i ur 5 . Di rib u ali r ia 1 992 1 995 F g e st t on of p , col s Is nd , C fo n , Artemis ia nes iotica i la in Lea and I i u u a i ur 6 .
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