REN R464 Lecture Notes - Lecture 17: Adaptive Management, Shifting Baseline, Moose
Document Summary
!1: they used to think that the lack of sh in our lakes was due to habitat, then they used adaptive management and gured out it was the angler pressure. Key ce drivers of alberta stream sh states. Fish habitat (do): low oxygen resulting in summerkill/winterkill (phosphate > anoxic stream over winter, cow poop) Heavy exploitation > more access to the creeks. Agriculture > runoff will cause low oxygen levels in the creeks. Oil and gas > into the creeks. Forestry > land disturbance and sediments going into the creeks. Mining > gravel pits, the trout hide in the gravel, gravel pits are always beside creeks that have gravel where the sh are found. Roads and crossing > quads, cars, etc. Thursday, november 24, 2016 step 2: build a dose-response curve. Increasing the number of big dams increases the probability of sturgeon = cumulative effect. An eia of each dam, individually, would conclude each has an ok effect on sturgeon.