The Southwestern Naturalist
Contents
44(3) September 1999
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Feature Articles |
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Genetic diversity in two rare milkweeds from the southwestern United States. |
James P. Therrien |
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Decomposition and nitrogen release from foliage of cottonwood (Populus deltoides) and Russian olive (Elaeagnus angustifolia) in a riparian ecosystem. |
Stacey B. Simons and T. R. Seastedt |
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Vegetative change on South Padre Island, Texas, over twenty years and evaluation of multispectral videography in determining vegetative cover and species identity. |
Robert I. Lonard, Frank W. Judd, James H. Everitt, David E. Escobar, Mario A. Alaniz, Isabel Cavazos III, and M. R. Davis |
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Dormancy-breaking and germination requirements in seeds of the summer annual Palafoxia callosa (Asteraceae) from central Texas. |
Carol C. Baskin, Jerry M. Baskin, and O. W. Van Auken |
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Ant communities in flooded and unflooded riparian forest of the middle Rio Grande. |
Elizabeth R. Milford |
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Effects of red shiner (Cyprinella lutrensis) on Red River pupfish (Cyprinodon rubrofluviatilis). |
Keith B. Gido, Jacob F. Schaefer, Kirstin Work, Philip W. Liensch, Edie Marsh-Matthews, and William J. Matthews |
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Movements and reproduction of hardhead and Sacramento squawfish in a small California stream. |
Gerold C. Grant and Paul E. Maslin |
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Abundance and habitat associations of elf owls and western screech-owls in the Sonoran Desert. |
Paul C. Hardy, Michael L. Morrison, and Robert X. Barry |
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Contributions to the knowledge of the mammals of Jujuy Province, Argentina. |
M. Monica Diaz and Rubén M. Barquez |
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Occurrence of Sorex arizonae and other shrews (Insectivora) in southern Arizona. |
Lee H. Simons and William E. Van Pelt |
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First record of Lasiurus xanthinus (Chiroptera: Vespertilionidae) in Texas. |
Jana Higginbotham, Loren K. Ammerman, and Michael T. Dixon |
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Movements and home range of salt marsh harvest mice. |
Michael A. Bias and Michael L. Morrison |
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Frequency of birth and lambing sites of a small population of mountain sheep. |
Richard C. Etchberger and Paul R. Krausman |
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Bison performance and productivity on tallgrass prairie. |
E. Gene Towne |
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Demographic responses of kit foxes to supplemental feeding. |
Gregory D. Warrick, Jerry H. Scrivner, and Thomas P. O'Farrell |
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Notes |
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Dynamics of species richness and abundance in a montane community of butterflies in southern New Mexico. |
Stephen B. Hager and Angela D. Stafford |
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Use of Pogonomyrmex occidentalis (Hymenoptera: Formicidae) nest-sites by tenebrionid beetles (Coleoptera: Tenebrionidae) for oviposition and thermoregulation in a temperate grassland. |
Nancy E. McIntyre |
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Western harvester ants prefer nest sites near roads and trails. |
Anthony C. Terranella, Lisa Ganz, and James J. Ebersole |
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Evidence of reproduction by humpback chub in a warm spring of the Colorado River in Grand Canyon, Arizona. |
Richard A. Valdez and William J. Masslich |
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Captures of striped bass in the Colorado River in Grand Canyon, Arizona. |
Richard A. Valdez and William C. Liebfried |
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Predation by nonnative fish on native fishes in the San Juan River, New Mexico and Utah. |
W. Howard Brandenburg and Keith B. Gido |
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Distribution of Morelet's crocodile (Crocodylus moreletii) in southern Belize. |
Steven G. Platt, J. B. Thorbjarnarson, and Thomas R. Rainwater |
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Additional records of bats from the middle Rio Grande Valley, New Mexico. |
Ernest W. Valdez, James N. Stuart, and Michael A. Bogan |
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Status of the North American porcupine (Erethizon dorsatum) in Mexico. |
Rurik List, Gerardo Ceballos, and Jesús Pacheco |
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The fringed myotis, Myotis thysanodes (Chiroptera: Vespertilionidae) in Tamaulipas, Mexico. |
Arnulfo Moreno-Valdez |
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Trail marking by coyotes, Canis latrans. |
Bayard H. Brattstrom |
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Range extensions of the woodland vole (Microtus pinetorum) and two other species in northwestern Oklahoma. |
Thomas W. Haner, Ronald W. Farrar, and Gary D. Schnell |
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Tree sloths (Mammalia: Xenarthra) in Nicaragua and Honduras, Central America. |
Timothy J. McCarthy, David L. Anderson, and Gustavo A. Cruz D |
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Utilization of cliff swallow (Petrochelidon pyrrhonata) nests in west Texas by cave myotis (Myotis velifer). |
Christopher M. Ritzi |
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Announcements |
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