There is general interest among fire ecologists to integrate observed fire regimes into long term fire management. The United States-Mexico borderlands provide unique research opportunities to study effects of contrasting forest management… See more
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The goal in traveling to the Sierra El Tigre - one of the most extensive of the sky islands - was to complete a basic bio-geographical assessment of the area, listing species of flora and fauna present in the Sierra El Tigre and especially “… See more
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Based on collections and published reports, the herpetofauna of mainland Sonora, México, includes 37 amphibian and 139 reptile species. An additional two amphibian and five reptile species have been taken very near the Sonoran border in contiguous… See more
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Canotia holacantha Torrey is reported from the Gulf of California, Mexico on Isla Tiburón. This population is isolated from its closest conspecifics in northern Sonora by 230 km and is best explained as a Pleistocene relict. Previous reports of… See more
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Spanish travelers or settlers in Santa Cruz County until 1691 when a Jesuit missionary, Father Eusebio Francisco Kino carne to the valley to establish missions and convert indigenous populations to Christianity. The impact Father Kino had on Santa… See more
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Devil’s Canyon is located in Pinal County Arizona a few miles east of Superior in the Globe Ranger District of the Tonto National Forest. The area is extremely rugged with deep canyons, rocky ridges, and uplands dominated by large boulders and… See more
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Development proposals sneak up on remote and unsuspecting towns in the Gulf of California region, such as Bahia Kino, Santa Rosalillita, Bahia de Los Angeles, El Golfo de Santa Clara, Puerto Libertad, and Punta Colonet. Many of the residents have no… See more
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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… See more
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An ecologically based classification system, when accompanied by digitized maps of biotic communities, has been shown to be useful for plotting and assessing affinities of plants and animals in the southwestern United States and northwestern Mexico… See more
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Mexico is the fourth richest area in the world in terms of biodiversity (Challenger 1998; Flores & Gerez 1988; Mittermeier & Goettsch Mittermeier 1992). Efforts to set up nature reserves in Mexico have had three major periods: the beginning… See more
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Trip report on 2005 biological inventory of the Rio Aros and Yaqui from Natora, Sonora to Sahuaripa. Rafts and inflatable kayaks were used to gain access to this remote and rugged area. Trip participants included Aaron Flesch, Lane Larsen, Samia… See more
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