The Mammals of the Huachua Mountains, Southeastern Arizona
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L I E) R.ARY OF THE UNIVLR5ITY or ILLINOIS 570-5 ILL V.24 cop-2 I The person charging this material is re- sponsible for its return to the library from which it was withdrawn on or before the Latest Date stamped below. Theft, mutilation, and underlining of books are reasons for disciplinary action and may result in dismissal from the University. To renew call Telephone Center, 333-8400 UNIVERSITY OF ILLINOIS LIBRARY AT URBANA-CHAMPAIGN NOV 1 m L161—O-1096 Digitized by the Internet Archive in 2011 with funding from University of Illinois Urbana-Champaign http://www.archive.org/details/mammalsofhuachua24hoff J^) Illinois Biological Monographs VOLUME XXIV University of Illinois Press URBANA BOARD OF EDITORS Leland Shanor Harvey I. Fisher H. Orin Halvorson William R. Horsfall Aubrey B. Taylor CONTENTS No. 1 The Mammals of the Huachuca Mountains, Southeastern Arizona DONALD F. HOFFMEISTER AND WOODROW W. GOODPASTER No. 2 The Myology of the Whooping Crane, Griis omericana HARVEY I. FISHER AND DONALD C. GOODMAN Nos. 3-4 The Genus Lysimachia in the New World JAMES DAVIS RAY, JR. :4.' The Mammals of the Huachuca Mountains, Southeastern Arizona DONALD F. HOFFMEISTER and WOODROW W. GOODPASTER ILLINOIS BIOLOGICAL MONOGRAPHS: VolUTTie XXIV, No. 1 THE UNIVERSITY OF ILLINOIS PRESS URBANA, 1954 ILLINOIS BIOLOGICAL MONOGRAPHS is the general title for a series of mono- graphs in botany, entomology, zoology, and alUed fields. Each issue is an independent pubUcation. For the convenience of bibUographers and librarians, each year's output is called a volume. Each volimie consists of approximately 450 pages, priced at four dollars. A volume may consist of two, three, or four individual monographs. Prices of individual numbers are indicated in the list of titles given below. Requests for ex- changes should be addressed to the Exchange Department, University of IlHnois Library, Urbana, Illinois. 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Contents ACKNOWLEDGMENTS 1 INTRODUCTION 3 METHODS 5 HISTORY 6 PHYSIOGRAPHY 8 CLIMATE AS IT AFFECTS THE MAMMALS 9 LIFE-ZONES, PLANT BELTS, AND ASSOCIATED MAMMALS 12 INTERRELATIONSHIPS OF SPECIES 22 GEOGRAPHICAL AFFINITIES OF THE MAMMALIAN FAUNA 26 GEOLOGICAL AFFINITIES OF THE MAMMALIAN FAUNA 29 GAZETTEER OF LOCALITIES 38 CHECK LIST OF MAMMALS OF THE HUACHUCAS 41 ACCOUNT OF SPECIES 44 HYPOTHETICAL LIST 138 MAMMALS ADJACENT TO BUT NOT IN HUACHUCA MOUNTAINS 139 LITERATURE CITED 140 INDEX 145 A cknoxvledgrnents Many persons have contributed to the success of this undertaking. First we would extend our sincerest thanks to those persons in the Huachucas, all of whom made our tasks easier and provided us with much biological information. We should especially like to thank Charles Wallmo, Lawrence and Dorothy Plunkett, Nick Gregovich, Earl Long, Vinita Bledsoe, Alex D'Albini, Carl Joerger, Henry Van Horn, Louis and Hazel Seeman, John and Ila Healy, Ralph Morrow, John and Donald Newman, Weldon Heald, and many others. Richard G. Van Gelder of the University of Illinois has been a most active participant in our field work in southeastern Arizona, and his en- deavors and cooperation have gone far in making specimens and informa- tion available and in bringing this report to completion. Lois Goodpaster has aided in the preparation of the many specimens. Charles McLaugh- lin has prepared Figs. 13, 14, 15, 17, and 19. Mrs. Julius Swayne pre- pared Fig. 16. The Arizona Game and Fish Commission, through A. N. Yoder, acting director, and Thomas Kimball, former director, kindly granted us per- mission to collect in the Huachucas. O. N. Arrington, chief, Arizona di- vision of game management, has been most helpful. Stanley P. Young and Everett M. Mercer of the U. S. Fish and Wildlife Service furnished us with information about mammals in the Huachucas. C. C. Sanborn made specimens from the Huachucas in collections of the Chicago Natural History Museum available to us. Seth B. Benson, California Mu- seum of Vertebrate Zoology, checked the identity of some of the Perog- nothus and Sigmodon. Emmet T. Hooper, University of Michigan, checked the identity of some of the specimens of Reitlirodontomys. Thanks are extended to Philip Blossom for providing detailed informa- tion about his experiences with Baiomys in the Huachucas. Especial thanks go to the University of Illinois, which purchased some collections from the Huachuca Mountains and made possible our field activities there. I Introduction The presence in southeastern Arizona of high, cool mountain ranges rising above low, hot deserts has resulted in a great diversity of ecological niches, extreme altitudinal and zonal variation in a short distance, and in complete or nearly complete isolation. Such conditions in nature should be conducive to variation, differentiation, and speciation in animals or plants. One of the highest and most isolated of these ranges is that which straddles the Mexican Boundary near the 110th parallel—the Huachuca Mountains. Studies of various groups of animals have shown that the Huachuca Mountains, although they comprise only about 100 square miles, are a haven for diversity of life. For example, of the species of birds breeding in North America, about one-quarter nest in the Huachucas, and at least 11 kinds of hummingbirds are found there. There are, in this limited area, some 536 kinds of plants, including 114 grasses. There are, in ad- dition, more than 50 kinds of ferns. Insect life is just as diversified, and the Huachucas have been a collector's paradise for entomologists for many years. There is little wonder that investigators were eager to learn if the mammalian fauna was as varied and interesting as the rest of the ani- mals and plants in the Huachucas. Mammals had been studied there, in a somewhat cursory manner, during parts of 1892 and 1893 by E. A. Mearns and F. X. Holzner (Mearns, 1907), and in 1894 by W. W. Price, Loye Miller, and B. C. Condit (Allen, 1895). To our knowledge, no studies of the mammals of the Huachucas, other than incidental observ- ing or collecting, have been made since then. Our own field activities have been spread over the following times: W. W. Goodpaster and L. W. Goodpaster, August 2 through August 27, 1949; August 1 through August 29, 1950; July 31 through August 3, 1951; and D. F. Hoffmeister and R. G. Van Gelder, August 9 through Septem- ber 1, 1950; July 31 through August 3, 1951.