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A New Upper Oligocene Oil Play in Southern Burgos Basin, México*
Discovery of oil in a new play has increased the petroleum potential of the Tertiary coastal plain in the southern part of the Burgos Basin. In this Upper Oligocene shorefacesandstone play, the
Foraging behavior of free-ranging cattle and community interactions in a tropical deciduous forest
The foraging behavior and movements of free-ranging cattle in TDF, and differences in statistically paired TDF with and without cattle, are described, on ranches with low stocking rates and an adjacent conservation preserve in the foothills of the Sierra Madre Occidental, Sonora, Mexico.