Grassland Vegetation Monitoring: A Minnesota Wildlife Action Plan ...

What Quantities to Estimate?3 Levels of Inference• Abundance – single species– State variable: abundance– Vital rates: Pr(survival, reproduction, movement)• Occupancy – single species– State variable: Proportion patches occupied– Vital rates: Pr(local extinction/colonization)• Community – multiple species– State variable: Species richness– Vital rates: rates of extinction and colonization