Grazing

Protecting El Pitayal

This presentation is meant to stimulate action by informing others of the nature of our goals and the urgency of the need for persons with the expertise in real estate law and land acquisition to engage our problem.


For the last 12 years, the Alamos Wildlands Alliance, a non-profit conservation group, has been operating a biological field station in the southwest corner of Sonora, a long day’s drive from Tucson. From mid-November through March, we teach and study the flora and fauna of this diverse landscape on the shores of the Agiabampo Estuary.

Tilling the Sonoran Desert for cattle

Some ranchers get convinced tilling of the desert soils will result in more forage for their cows. Needless to say in a desert environment this does not work. It may promote some extra grass for 1 or or 2 years max, but after that forage is reduced. The natural soil ecosystem is disrupted harming all vegetation including those plants cattle feed on. Roots of plants are torn up and worst of all the soil is exposed leading to desication and quicker drying, the best way to kill desert plants.

Tilling the Sonoran Desert for cattle

Petition To List The Cactus Ferruginous Pygmy Owl As A Threatened Or Endangered Species Under The Endangered Species Act

The Center for Biological Diversity and Defenders of Wildlife hereby formally petition the U.S. Fish and Wildlife Service (also “Service”) to list one of the following entities of cactus ferruginous pygmy-owl: 1) the Arizona distinct population segment (“DPS”) of the cactus ferruginous pygmy-owl; 2) the Sonoran Desert DPS of the cactus ferruginous pygmy-owl; or 3) the western subspecies of cactus ferruginous pygmy-owl (G.

Fishes Of The Rio Yaqui Basin, Mexico And United States

The Rio Yaqui drainage basin of northwestern Mexico comprises about 73,000 km of the most inaccessible and rugged terrain in western North America (Blásquez 1959). An average annual discharge of almost 2,800 ha2 makes the Rio Yaqui one of the major watersheds of that region (Tamayo and West 1964). The small percentage of this system that lies within southwestern United States contributes a substantial proportion of the native ichthyofauna of that area - 6 to 8 species of fishes were originally present, of which 5 did not occur elsewhere in the United States.

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