ISB 201 1st Edition Lecture 10 Outline of Last Lecture I. Batesian MimicryII. EvolutionIII. Scientific Evidence Outline of Current Lecture IV. Invasive SpeciesV. Native vs. Non-nativeVI. Live and Co-Evolution Current LectureIV. Invasive SpeciesA. Costly to control now and in the future1. Education important2. Stop it before it happensB. Asian Carp DNA found in the Great Lakes1. Aggressive, high biotic potential 2. $7 billion dollar commercial fishing industry threatenedC. Gauses Principal- no two species can occupy an identical niche for any period of time1. One drives the other out2. One goes extinct 3. Has to adapt genetic mutations V. Native vs. Non-nativeA. Native= a species belonging to a region as a result of natural processes with no humanintervention B. Non-native= a species living outside its native range, which has arrived by human activity, deliberate or accidental (alien, exotic) C. Invasive species= has an adverse impact to the region they invade1. plants, animals, fungus, bacteria, virusThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.2. affectsa. economical: financial gain/ lossb. environmental: biodiversity and ecosystem servicesc. social: public health, happiness or cultural valuesD. How are non-native species introduced?1. Natural invaders (rare)a. hurricane, windsb. Cattle Egret: native to Africa, crossed South America and then to U.S> in 1940s with assistance from tropical stormsi. spread quicklyii. out competing native birdsiii. follow livestock and farmers and feed on beneficial insects and seeds ecosystem services by insects affected 2.International Introductions a. Shakespeare’s Birds- brought all the birds referenced in Shakespeare’s plays (over 100) to New York Cityb. Starling: Successful because suitable for city habitat and ecological niche, but ate grains from livestock and spread diseases ( economic and public health issues)3. Inadvertent (accidental) Introa. Dandelions are native to Europe and brought to N. America intentionally, but spread unintentionallyi. camping equipmentii. lawn mowersVII. Lice A. 3 species of lice on humans: head, body, and pubic1. Crab louse came from gorilla louse2. Hair louse came from Chimpanzee louse and broke off into another species of body louse B. Head lice1. Females produce 10 eggs laid in hair2. Lives entirely on the human3. Die after 24hrsC. Body lice1. Eggs laid in clothing and bedding2. Lives off human, but returns to feed on blood3. Can survive 1 month off of humanD. Humans and Lice co- evolve1. Humans lose body hair- clothing lice wouldn’t have a niche until humans began wearing clothing genetic mutations (170,000 years ago)2. Pubic louse shows how long ago we lost body hair geographical distance separating the head from the pubic area…two different species of
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