Kachergis, E. (corresponding author, emily. [email protected]): Rangeland Resources Research Unit, USDA-Agricultural Research Service, 8408 Hildreth Road, Cheyenne, WY, 82009, USA Rocca,M.E. ([email protected]): Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO, 80523, USA Fernandez-Gimenez,M.E. ([email protected]): De...

Herbivory and fire are natural interacting forces contributing to the maintenance of rangeland ecosystems. Wildfires in the sagebrush dominated ecosystems of the Great Basin are becoming larger and more frequent, and may dramatically alter plant communities and habitat. This synthesis describes what is currently known about the cumulative impacts of historic livestock grazing patterns and short...

The objective of the current study was to determine seasonal changes in glucose, cholesterol, non-esterified fatty acids (NEFA), serum inorganic phosphorous (SIP), calcium, magnesium and iron concentrations in Nguni and crossbred cattle on the sweet and sour rangelands of the Eastern Cape Province of South Africa. Body weights, body condition scores (BCS) and serum concentrations of energy-rela...

The objective of this paper is to examine the sustainability of rangeland agriculture (i.e., managed grazing) on a world-wide basis, with a focus on North America. Sustainability is addressed on three fronts: 1) ecological, 2) economic, and 3) social acceptance. Based on previous and on-going research, we suggest that employment of science-based rangeland grazing management strategies and tacti...

Little of the rangeland resources of Balochistan, Pakistan have been assessed and there is little to no information on how abiotic factors such as soil type and topography infl uence the nutritive value of native species. Leaf nitrogen concentrations in all species showed broadly similar patterns of change with season. In all species, non-protein nitrogen (NPN) accounted for more than 35-50% of...

Cbeatgrass (Bromus tectorum L.) has become the dominant species over large areas of rangeland in the Great Basin region of the western United States. Rapid germination at low temperature may contribute to the competitive success of cheatgrass in areas formerly dominated by native sagebrush and bunchgrass species. The objectives of this study were to determine whether seed priming could be used ...

Dana M. Blumenthal* Rangeland Resources Research Unit, USDA Agricultural Research Service, 1701 Center Avenue, Fort Collins, CO 80526, USA *Correspondence: E-mail: [email protected] Abstract Understanding why some exotic species become invasive is essential to controlling their populations. This review discusses the possibility that two mechanisms of invasion, release from natural en...

spp.) showed that forage DM intake was positively correlated with N fertilization rate. Fertilization may also Because native, shortgrass prairies are not typically fertilized and increase forage preference by livestock. Cook and Jeffotherwise extensively managed, little information is available on their response to nitrogen (N) fertilization. An experiment was conducted eries (1963) showed tha...

Native plants of the Sahara are remarkably resistant to prolonged droughts and important sources forage, food, medicine. Their regeneration from seeds after strong anthropogenic disturbances is a challenging step toward their conservation mitigate desertification. We studied germination responses 43 dominant native species desert that could be propagated for future ecological restoration projec...