Building a Tradition of Adaptive Rangeland Management: Jack Southworth

This case study profiles Jack Southworth, who manages a cow-calf-yearling operation in the high-desert rangelands and dry forests near Seneca, Oregon. Southworth applies holistic management principles that integrate ecological, economic, and social goals to support long-term ranch viability. His approach emphasizes adaptive grazing, including high-density, short-duration grazing with long recovery periods, delayed spring grazing based on plant phenology, and annual monitoring of vegetation and soil conditions. He has also improved degraded rangelands by seeding non-native perennial species and diversifying forage resources to increase productivity and extend the grazing season. These practices support soil health, water retention, and nutrient cycling while maintaining forage production. Southworth’s operation remains flexible through strategies such as adjusting herd size in response to forage availability and experimenting with grazing, seeding, and herd genetics. Overall, the case highlights how adaptive management, monitoring, and diversification can improve resilience to climate variability while sustaining profitability and rangeland health.