UNDERSTANDING CAUSE-EFFECT RELATIONSHIPS IN STOCKING RATE CHANGE OVER TIME
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abstract
Decisions made by Texas ranchers over a 10 yr period 1980-1990) concerning stocking rate levels were dominated by perceptions about weather. As ranchers' perception of a positive rainfall effect increased, so did stocking rates, and vice versa. Proactive stocking decisions should include a strategy for adjusting stocking levels in response to changing environmental conditions. Other factors with significant albeit trivial, path coefficients on stocking rate change were age, grazing rights, traditional stocking rate factors, traditional grazing program factors, and weed/brush information factors. Older ranchers (>65 yr) and ranchers who leased all of their rangeland tended to decrease stocking rates over time. Rangeland operators indicated they considered "improved livestock performance' as the most important benefit from initiating a grazing program. Evidence also suggested that ranchers who rely on their neighbors for advice about weed/brush decisions are not benefitting from the latest technology information. Adoption of economic factors (cost/benefits) for selection of weed/brush technology did not have a significant impact on stocking rates over the 10 yr period. -from Authors