Volume 26(2)

Journal
of the
Arizona-Nevada Academy of Science

CONTENTS

Limnology and Aquatic Biology of the Southwest
Milton R. Sommerfeld and Dennis M. Kubly, Editors
Preceedings of a Special Symposiuim held during the Thirty-Fourth Annual Meeting
of the Arizona-Nevada Academy of Science
Arizona State University, Tempe, Arizona, U.S.A.
21 April, 1990
Preface
    Milton R. Sommerfeld and Dennis M. Kubly 		52
In recognition of Gerald Cole, Ph.D. (1917-) Professor emeritus of zoology.
    Shelby Gerking 		53
Aquatic invertebrates in desert mountain rock pools: The White Tank Mountains,
    Maricopa County, Arizona.
    Dennis M. Kubly 		55
Quitobaquito Springs revisited.
    Stuart G. Fisher 		70
Three decades near Cuatro Cienegas, Mexico: Photographic documentation and
    a plea for area conservation.
    W. L. Minckley 		89
The foraging ecology of Ranatra montezuma (Heteroptera): An optimal forager
    in Montezuma Well, Arizona.
    Clay Runck and Dean W. Blinn 		119
Observations on the clam shrimps of Arizona.
    Denton Belk 		132
Biogeochemistry of nitrogen in Sonoran Desert streams.
    Nancy B. Grimm 		139
Ionic composition of high conductance waters of the arid Southwest.
    Stephen B. Ellingson and Milton R. Sommerfeld 		156
Pools in desert streams: Limnology and response to disturbance.
    Dalaine J. Wood, Stuart G. Fisher, Nancy B. Grimm 		171
Concluding remarks.
    W. D. Williams 		180
Book Reviewes
    Evolutionary Trends
    Scientific Literacy and the Myth of the Scientific Method
 88
131

1993
Published by the
Arizona-Nevada Academy of Science