BIOL208 Lecture Notes - Commensalism, Ecosystem Engineer, Biological Pest Control
9 Apr 2014
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Biol 208: introduction to species interactions (february 26, 2014: types of species interactions, *functional categories of interactions. *eating of other organisms; doesn"t have to be a lethal interaction: bees eating nectar is beneficial for the plant with the flower pollination, rabbit being eaten by predatory animal, herbivore, carnivore (predation), omnivore, detritivore. *mostly relating to plants who typically cannot reproduce sexually on their own- need vectors, a way of transporting gametes. *accidental or deliberate: accidental hummingbirds, deliberate yucca plant and yucca moth. Need each other in order to reproduce: moth fertilizes the plant but then parasitizes it when offspring hatch since the eggs are laid in the ovules of the plant. Coral reefs and coral fish: corals provide multidimensional habitat for fish. Called ecosystem engineering : figure 13. 2 outcome based classification of species interactions. How does either one affect the other if at all: positive, neutral, negative effects.
