Volume 60, Number 4 (2000)
Front Matter
Articles
Microtopography of microbiotic crusts on the Colorado Plateau, and distribution of component organisms
D. B. George, D. W. Davidson, K. C. Schliep, and L. J. Patrell-Kim
Geographic distribution, morphological and molecular characterization, and relationships of Lathrocasis tenerrima (Polemoniaceae)
Leigh A. Johnson and Terri L. Weese
Facilitation of Yucca brevifolia recruitment by Mojave Desert shrubs
Steve Brittingham and Lawrence R. Walker
Variability among five riparian cottonwood (Populus fremontii Wats.) populations: an examination of size, density, and spatial distribution
Diane L. Rowland, Beth Biagini, and Ann S. Evans
Breeding behavior of the Plumbeous Vireo in New Mexico
Timothy E. DeMarco, Christopher B. Goguen, David R. Curson, and Nancy E. Mathews
Breeding ecology of White-faced Ibis (Pleagadis chihi) in the Upper Klamath Basin, California
Michael R. Taft, David M. Mauser, and Todd W. Arnold
Algae of Devils Hole, Nevada, Death Valley National Park
William D. Shepard, Dean W. Blinn, Ray J. Hoffman, and Paul T. Kantz
Response of wintering buteos to plague epizootics in prairie dogs
David B. Seery and Daniel J. Matiatos
Status of Descurainia torulosa (Brassicaceae)
Jerald S. Bricker, Gregory K. Brown, and Tricia L. Patts Lewis
Interspecific differences in grass seed imbibition
Eric E. Jorgensen and Kelly L. Chesser
Ecological impacts of seed harvester ants on soil attributes in a Larrea-dominated shrubland
Simon A. Lei
C3 and C4 Species Changes Identified by δ13C values of soil organic matter in a Colorado prairie
Penelope Sinton, Tim Seastedt, Barry Bennett, Carl Bock, and Jane Bock
Oreohelices of Utah, I. Rediscovery of the Uinta mountainsnail, Oreohelix eurekensis uinta Brooks, 1939 (Stylommatophora: Oreohelicidae)
George V. Oliver and William R. Bosworth III
Notes
Egg mass deposition by Arizona toads, Bufo microscaphus, along a narrow canyon stream
Andrew Dahl, Michael P. Donovan, and Terry D. Schwaner
A confirmed record of the Ephemeroptera genus Baetisca from west of the Continental Divide and an annotated list of the mayflies of the Humboldt River, Nevada
Richard W. Baumann and Boris C. Kondratieff
Book Review
End Matter
Full Issue
