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A COMPIEATION OF PAPERS PRESENTED AT THE 21ST ANNUAL MEETING, APRIL 6 - 8, P977 AT LAS CRUCES, NEW MEXICO Edited by Charles Douglas (Chairman), Raul Valder, David Leslie, Jr., and Theda O'Farrell Copies available for $5.00 by writing the Desert Bighorn Council, Death Valley National Monument, Death Valley, CA 92328 TABLE 0 CONTEN PAGE "SPOTS" ............................................................................................. NEW MEXICO'S BIGHORN SHEEP REINTRODUCTION PROGRAM Walter A. Snyder ................................................................................. STATUS OF THE TEXAS DESERT BIGHORN PROGRAM Charles K. Winkler.. , BIGHORN SHEEP STATUS REPORT FROM NEVADA Robert P. McQuivey ....................................................................................... BIGHORN MANAGEMENT IN CALIFORNIA - UPDATED Richard A. Weaver.. THE STATUS OF THE BIGHORN/BURRO SITUATION AT GRAND CANYON NATIONAL PARK Jim Walters ............................................................................................... 1976 - GOOD YEAR AT LAVA BEDS James A. Blaisdell ......................................................................................... THE ZION BIGHORN RESTORATION PROJECT, 1976 Henry E. McCutchen ..................................................................................... SUMMER LAMB MORTALITY OF ROCKY MOUNTAIN BIGHORN SHEEP Terry R. Spraker and Charles P. Hibler . TREATMENT OF BIGHORN SHEEP FOR LUNGWORM Charles P. Hibler, Terry R. Spraker and Robert L. Schmidt.. .,.. .. .. .. .. CAPTURE MYOPATHY OF ROCKY MOUNTAIN BIGHORN SHEEP Terry R. Spraker ........................................................................................... FIBRINOUS PNEUMONIA OF BIGHORN SHEEP Terry R. Spraker ........................................................................................... CAPTURE AND TRANSPLANT OF DESERT BIGHORN SHEEP WITH M-99 Samuel C. Winegardner, Larry B. Dalton and James W. Bates.. .. .. .. .. .. .. .. OVERGRAZING ON DESERT BIGHORN RANGES Steve Gallizioli ............................................................................................ HABITAT DAMAGE BY FERAL BURROS IN DEATH VALLEY Charles L. Douglas and Christopher Norment . .i. HOME RANGE. GROUP SIZE. AND GROUP INTE~~ITYOF T HE DESERT BIGHORN SHEEP IN THE RIVER MOUNTAINS. NEVADA 7 David M. Leslie, Jr. .................................................................................. POPULATION STATUS OF THE DESERT BIGHORN, BIG HATCHET MOUNTAINS, NEW MEXICO Mark S. Lenarz ............................................................................................ BIGHORN SHEEP MANAGEMENT IN THE SIERRA NEVADA John D. Wehausen, Lorin L. Hicks, David P. Garber and James Elder.. FOOD HABITS OF DESERT BIGHORN SHEEP IN NEVADA, 1956-1976 K.W. Brown, D.D. Smith and R.P. McQuivey.. "Spots" Spots was born in captivity sixteen years ago at the Desert Game Range. Upon reaching adulthood, he sired many lambs to perpetuate the species, and by seven years of age, he had become a legend. This reputation resulted from his magnificent set of horns. Unlike most bighorns, his horns were not "broomed" and therefore retained their massive symmetry. Within a decade, illustrations of this one bighorn dominated all publications depicting our native bighorn sheep. He was photographed and sketched by countless numbers of people, from many countries. His existence at the Desert Game Range provided important research data on aging techniques and behavior. But most importantly, he provided an unforgettable impression on thousands of individuals, many of whom never had seen desert bighorn sheep prior to visiting the Desert Game Range. Spots died from old age on July 12, 1977, but his legend will liveon for many years. He made a lasting contribution to public awareness of desert bighorn.sheep and the urgent need for conservation and enlightened management. Photos 01 Spots by Jim Yoahurn, NEW MEXHCO'S BPGHOPW Walter A. Snyder New Mexico Dept. of Game and Fish Santa Fe. New Mexico 87503 Tne New Mexico Department of Game and Fish has an active program for relntrod~ctionof blghorn sheep Into historic and suitable ranges throughout the state. Botn the Bureau of Land Management and tne Forest Service are currently participating with us in the program. All three agencies are involved in a planning effort under the Sikes Act. Underthisplanningeffort. 32 sites have been identified as either historic or potentiil bighorn habitat, and a detailed evaluation of the sites is being initiated. There are four populations of Rocky Mountain blghorn sheep in the state at this time which have resulted from reintroduction efforts started in the 1940s. The Rocky Mountain bighorn was extirpated from the state in the early 1900s. There are two captive population of desert bignorn sneep at our Red Rock oig game research area nortn of Lordsburg, New Mexico.Oureffor1 in surviving desert bighorn sheep populations in the state. Ceptive propagallon of desert bighornsheep isdoing much better Of the four populations of Rocky Mountain bighorn in the state, than our effort with Rocky MoJntaln sheep. only one is currently being hunted. This is the population in the Pecos Wilderness area, which we estimate at approximately 300 We began our effort on propagation of captive desert bighorn sheep. A research study is baing conducted onthe iungworm sheep in January. 1972. when we trapped five ewes in Sonora, pneumonia problem of this population. TheU.S. Forest Service is Mexico, under an agreement with the Mexican Government. This also conducting a research project on the habitat of this population was supplemented by five ewes and three rams irom population. theSan Andres herd in 1972 and anadditionaleightewesin 1975. We had some losses at the outset oithe program - in late 1972we Last summer, we trapped and transplanted 11 ewes from this lost threeof theiiveewes from Mexico,andin 1973, welosttwoof population to adjacent habitat areas that are not populated bythe the five ewes from San Andres. Production was good in 1974; six eweand iambsegment of the population. Within ashortperiodof ewes in the population producedsix lams. in 1975, six lambswere time, the majority of the animals returned to the trap site. Weare produced, but three of them were lost to coyote predation. In planning an additional trapping effort in thearea this summer and 1976.14 lambs were produced by 14 matureewes. Currently. we will move 28-30 sheep from the population for reintroduction into have four lambs this year, with a possible total production of 18 another suitable area. lambs. Our current population contains seven mature and eight Both our Department and the US. Forest Service are yearling rams. 18 mature and six yearling ewes and, to date, four programming evaluations of potential Rocky Mountain bighorn unclassified lambs for a total of 43 animals. release sites to begin next fiscal year. Our tentative plans are to This captive population is currently being held in a 512-acre use the Pecos sheep population as a source of stock for Desture. We have twoadditional~ ~~ ~ - ~ oasturesadiacsnt7~--~..-.,-.. to this onethat reintroduction into all suitable areas. are availaole for use, or w..l be, in the near future. One of them Wecrrrrently havea i~mitedcapt~vepop~lat~onofRocky Mounta~n contoins 202 acres an0 the ofher contains 101 acres. We are bighorn sheep at the Fort Wlngate Army Depot Activity near planning to move some of the sneep to the larger of these Gallup in a 6.000-acre munitions storage area This population pastdes this summer. We 00 not want to crowd thesheep to the was eslaoltshed In 1973 and has been supplemented with sheep polnt where distLrbance or disease co~idbecome a proDlem. several tames A total of 24 sneep have been planteo at Fort Assuming that no losses occur, we will have a maximum of 105 Wingate but, due to escapes and losses, the population contains sheep in our facility by the winter of 1979. At this time our only eight animals at this time. We are considering the posgibility evaluation of release sites will beadvanced to the point wherewe of addiilonel fence modification in thearea to bettercontain these can program our first release. Our first release will be made in a sheep. paddock constructed from nylon mesh net around a water We recently completed an evaluation of bighorn sheep habitat in source. The paddock will be of sufficient size to allow us to :he San Andres mountains. This is the only desert sheep contain the planted sheep through thespring iambingseasonsto population being hunted in New Mexico. The population is allow the animals to become accustomed to the release site. We estimated at about 300 animals. A report on this study will be will do an intensive monitoring of the release using radio presented later in the program. It is our intention to use telemetry for at least one year. Material used in the paddock will iniormation gathered from this study to evaluate potential be picked up and used for subsequent releases. transplant areas for desert bighorn sheep. A research study is We will probably begin to remove excess rams from the captive also being conducted on the remnantsheep population in theBig population this summer to reduce the disturbance to the females Hatchet mountains. The study is being funded by the Bureau of during the breeding season. Excess males will probably be Land Management and is contracted to the Department of Game released into the existing wild popuiations.lt is also possible that and Fish. We have subcontracted the study to New Mexico
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