BIOB50H3 Study Guide - Midterm Guide: Logistic Function, Survivorship Curve, Endosperm
Document Summary
Long temporal scale: how species chance over geologic time. Ecology: is the scienti c study of interactions between organisms and their environment. Ecologists evaluate competing hypotheses about natural systems with experiments, observations, and models. Climate: long-term description of weather, based on averages and variation measured over decades. Evapotranspiration: is the sum of water loss through transpiration by plants and evaporation from the soil. Evapotranspiration transfers energy (as latent heat) and water into the atmosphere, thereby affecting air temperature and moisture. Removing trees increase the albedo of land surface, lowering its absorption of solar radiation. The change in surface roughness increases sensible heat loss by convection (wind) These cooling effects are more than offset by the warming effects of decreased latent heat loss by evapotranspiration. Reduced evapotranspiration also reduces the return of moisture to the atmosphere and reduces precipitation rates. It lies between the lithosphere- earth s surface crust and upper mantle, and the troposphere- the lowest layer of atmosphere.
