BIOSC 0370 Lecture Notes - Lecture 18: Insecticide, Intermediate Disturbance Hypothesis, Detritivore
24 Apr 2018
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Document Summary
Forced into less than ideal territory due to competition between species and adapt to the new environment. Species within communities may be interdependent or independent: tree species appeared and disappeared throughout the study area according to the moisture gradient but without reference to each other, hence, they are independent, they can subsist without each other. If one dies out, it won"t affect the community. Illustrates an inverse relationship between nutrient availability and species richness. Species form food webs within communities: trophic levels (green food web, primary producer, plants, seeds, algae, only 10% of the energy is taken from the sun to the plant, primary consumer, produce primary producer, chipmunks, squirrels, rats. Small or medium sized carnivores: tertiary consumer. Indirect effects caused by changes in density of an intermediate species: fish eat larvae dragonflies and adult dragonflies eat pollinators (i. e. bees, ponds without fish have been.
