Volume 34(1)

Journal
of the
Arizona-Nevada Academy of Science


CONTENTS

Effects of Harvesting Headwater Forest Watersheds on Woody Debris and Stream Channel Characteristics
    Aregai Tecle, Hilaire A. Bojonell, and John G. King
1
Flora of the Papago Park Military Reservation: A Desert Remnant in Phoenix, Arizona
    Gretchen M. Walters
16
Beyond Taphonomy: Pedogenic Transformations of the Archaeological Record in Monumental Earthworks
    Douglas S. Frink and Ronald I. Dorn
24
Nomenclatural Changes in Cylindropuntia, Grusonia, and Nopalea (Cactaceae)
    Jon P. Rebman
45
Bonytail (Gila elegans) May Enhance Survival of Razorback Suckers (Xyrauchen texanus) in Rearing Ponds by Preying on Exotic Crayfish
    Nathan Lenon, Krystyna Stave, Tom Burke, and James E. Deacon
46
Urban-Rural Humidity Variations in Phoenix, Arizona
    Erinanne M. Saffell and Andrew W. Ellis
53
Human Disturbance in Bighorn Sheep Habitat, Pusch Ridge Wilderness, Arizona
    Kathryn A. Schoenecker and Paul R. Krausman
65
Book Review 69

2002
Published by the
Arizona-Nevada Academy of Science