CONTENTS 



PAGE 



List of plates, colored xv 



List of plates, half-tone xvi 



List of text figures xvii 



Introduction 1 



Distribution of animal life in the Yosemite section 4 



Table of occurrence, according to life zone, of the mammals, breeding birds, reptiles, 



and amphibians of the Yosemite section 14 



Censuses of birds in the Yosemite section 22 



The interrelations of living things 36 



Scope of the species accounts 40 



The Mammals 43 



Moles, Scapanus latimanus 43 



Yosemite Mole, Scapanus latimanus sericatus 



San Joaquin Mole, Scapanus latimanus campi 



Mono Mole, Scapanus latimanus monoensis 



Shrews, Genus Sorex 47 



Dusky Shrew, Sorex obscurus obscurus 



Adorned Shrew, Sorex ornatus 



Yosemite Shrew, Sorex montereyensis mariposae 



Sierra Nevada Shrew, Sorex vagrans amoenus 



Lyell Shrew, Sorex lyelli 



Navigator Shrew, Neosorex palustris navigator '. 50 



Little California Bat, Myotis californicus californicus 51 



High Sierra Bat, Myotis lucifugus altipetens 55 



Long-legged Bat, Myotis longicrus longicrus 56 



Fringed Bat, Myotis thysanodes 57 



Merriam Bat, Pipistrellus hesperus merriami 57 



Large Brown Bat, Eptesicus fuscus 58 



Hoary Bat, Nycteris cinerea 59 



Pacific Pallid Bat, Antrozous pacificus 60 



Mexican Free-tailed Bat, Nyctinomus mexicanus 61 



American Black Bear, Ursus americanus 63 



Grizzly Bear, Ursus henshawi 68 



Mountain Coyote, Canis latrans lestes 71 



Cascade Red Fox, Vulpes cascadensis 77 



San Joaquin Kit Fox, Vulpes macrotis mutica 77 



California Gray Fox, Urocyon cinereoargenteus californicus 78 



California Ring-tailed Cat, Bassariscus astutus raptor 81 



California Coon, Procyon lotor psora ^ 81 



Sierra Pine Marten, Martes caurina sierrae 82 



Pacific Fisher, Martes pennanti pacifica 83 



Sierra Nevada Wolverine, Gulo luscus luteus 85 



Mountain Weasel, Mustela arizonensis 86 



Sierra Least Weasel, Mustela muricus 89 



Pacific Mink, Mustela vison energumenos 89 



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