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Native And Domestic Browsers And Grazers Reduce Fuels, Fire Temperatures, And Acacia-Ant Mortality In An African Savanna, Kari E. Veblen
Native And Domestic Browsers And Grazers Reduce Fuels, Fire Temperatures, And Acacia-Ant Mortality In An African Savanna, Kari E. Veblen
Kari E. Veblen
Despite the importance of fire and herbivory in structuring savanna systems, few replicated experiments have examined the interactive effects of herbivory and fire on plant dynamics. In addition, the effects of fire on associated ant-tree mutualisms have been largely unexplored. We carried out small controlled burns in each of 18 herbivore treatment plots of the Kenya Long-term Exclosure Experiment (KLEE), where experimentally excluding elephants has resulted in 42% greater tree densities. The KLEE design includes six different herbivore treatments that allowed us to examine how different combinations of megaherbivore wildlife, mesoherbivore wildlife, and cattle affect fire temperatures and subsequent loss …
Monitoring Of Livestock Grazing Effects On Bureau Of Land Management Land, Kari E. Veblen
Monitoring Of Livestock Grazing Effects On Bureau Of Land Management Land, Kari E. Veblen
Kari E. Veblen
Public land management agencies, such as the Bureau of Land Management (BLM), are charged with managing rangelands throughout the Western United States for multiple uses such as livestock grazing and conservation of sensitive species and their habitats. Monitoring of condition and trends of these rangelands, particularly with respect to effects of livestock grazing, provide critical information for effective management of these multi-use landscapes. We therefore investigated the availability of livestock grazing-related quantitative monitoring data and qualitative region-specific Land Health Standards (LHS) data across BLM grazing allotments in the Western United States. We then queried university and federal rangeland science experts …