ES293 Lecture Notes - Landscape Ecology, Panarchy, Status Quo
Document Summary
Week 1, lecture 2: social-ecological systems (lecture 1, just review of syllabus) Diagram displaying things in shaded area depicting activity all connected and interact. Processes all vary-response to disturbance might be immediate or take a while. Nested systems relate to human relationship with personal environment. Helps to understand development behaviour and personality. Output: human body (input can be stored for different lengths of time, heat, ideas & actions, waste and pollution. Homeostasis: keep internal conditions steady as external conditions change, maintaining dynamic equilibrium. The more things change, more stay the same . Arctic massive positive feedback loop, because ice is melting, reducing habitat the change in temperature makes it a positive feedback loop. Recap: negative feedback= good (keeps system the same/equal. **sometime new factors introduced can alter the loop for a time before it returns to before. Thresholds: level of tolerance to stress/change, pushed back to a new equilibrium, need to establish environmental levels.
