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BIOL 1108 Unit 2 NotesIn The NewsWhy had officials decided to kill every fish in Teller Lake near Boulder, Colorado?oWhat makes an "alien" species invasive?
ooR-selected species tend to overshoot the carrying capacity whereas k-selected species increase in numbers more slowly until the carrying capacity is reachedType (I, II, or III) graphsoMost human (type I) young survive, reach adulthood and then die in the last few yearsoMost plant (type III) young perish before reaching adulthood and then gradually die as adults oBirds (type II) tend to die at a steady logarithmic rate from birth through adulthood
oWhat ecological problems do invasive species cause?oDisplace native species oReduce productivity of the bioregionoAlter processes in the ecosystem oIntroduce new diseases to the regionHemlock Woolly Adelgid (HWA, Adelas tsugae) oAn aphid-like, invasive insect that poses a serious threat to forest and ornamental hemlock trees in eastern North AmericaWhy might there be an expanded range of the mountain pine beetle?