SCI 101 Lecture Notes - Lecture 9: Biological Interaction, Parasitism
15 Nov 2018
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Document Summary
*the 10% rule the mass decreases by 10% as you go up the chain : (mass in kg/g) Is transferred to the next trophic level. Ex: a 100 kg shark eats 1000 kg worth of fish. If each fish weighs 400 g, how many fish does the shark eat? (hint: 1 kg = 1000 g)? (1kg/1000g) x 400g = 0. 4 kg 1000kg/0. 4 kg =2,500 fish. Predation is the biological interaction between predator, the organism consuming, and prey, the organism being consumed. Numerical response the change in predator density as a function of change in prey density (decrease predator population = increase prey population) Lag correlation exists between predator and prey populations, the population of predators lags behind the population of prey organisms. Interdependence between species, where each species depends on the other. Adaptation arises as result of these interactions. Prey organisms adapt defense mechanisms to avoid being caught by a predator.
