FRST 200 Lecture Notes - Radiant Energy, Chemosynthesis, Detritivore
Document Summary
Subtle like one species aquiring dominance or catastrophic like the death of a whole population. Succession: change in species composition of communities over time and is a result of abiotic and biotic agents of change. Disturbances: physically injures and creates opportunities for others. Stress: reduces growth or reproduction and creates opportunities for others. Agents of change vary in their intensity, frequency and extent. Chapter 5: coping with environmental variation: energy (107-127) Kinetic energy: motion of molecules- cold or warm objects. Autotrophs: use energy from sunlight (photosynthetic, organic) or use energy from chemical. Energy is stored in the c-c bonds of the organic compounds that these 2 processes produce. Calvin cycle occurs in photosynthetic and chemosynthetic organisms and is the biochemical pathway used to fix carbon. Photosynthesis is the powerhouse for life on earth. Light response curve: relationship between the light level and a plant"s photosynthetic rate. Light compensation point: when co2 uptake = co2 loss by respiration.
