BIOL 1108 Unit 2 Notes - BIOL 1108 Unit 2 Notes In The News Why had officials decided to kill every fish in Teller Lake near Boulder Colorado o Goldfish

BIOL 1108 Unit 2 Notes - BIOL 1108 Unit 2 Notes In The News...

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BIOL 1108 Unit 2 Notes In The News Why had officials decided to kill every fish in Teller Lake near Boulder, Colorado? oWhat makes an "alien" species invasive?
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o o R-selected species tend to overshoot the carrying capacity whereas k-selected species increase in numbers more slowly until the carrying capacity is reached Type (I, II, or III) graphs o Most human (type I) young survive, reach adulthood and then die in the last few years o Most plant (type III) young perish before reaching adulthood and then gradually die as adults o Birds (type II) tend to die at a steady logarithmic rate from birth through adulthood
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o What ecological problems do invasive species cause? o Displace native species o Reduce productivity of the bioregion o Alter processes in the ecosystem o Introduce new diseases to the region Hemlock Woolly Adelgid (HWA, Adelas tsugae) o An aphid-like, invasive insect that poses a serious threat to forest and ornamental hemlock trees in eastern North America Why might there be an expanded range of the mountain pine beetle?
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