BIOL 180 Chapter Notes - Chapter 55: Treehopper, Null Hypothesis, Community Structure
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BIOL 180 Full Course Notes
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Document Summary
Bees and pollination: bees get nectar and pollen as food source, flowers get pollinated. Rewards from mutualistic interactions range from transporting gametes to acquiring food, housing, medical help, and protection. Despite benefits for both species, interactions that involve those individuals from different species doesn"t mean they"re being nice together (not altruistic) Some species may cheat on mutualistic systems: deceit pollination. Some species of plants have a showy flower w/o nectar. Mutualism is like parasitism, competition, and other types of species interactions in an important respect: outcome of the interaction depends on current conditions. Because the costs and benefits of species interactions are fluid, an interaction between the same two species may range from parasitism to mutualism to competition. Research experiment: question: is the relationship between ants and treehoppers mutualistic, hypothesis: ants harvest food from treehoppers.
