BIOL4120:PrinciplesofEcology Lecture2:AdaptationandEvolutionDafengHuiOffice:HarnedHall320Phone:963-5777Email:******@:Whatdeterminesdistribution&abundanceofspecies?TwoclassesofanswersContemporary,localfactors(domainoftraditionalEcology,biomesandPPTandT)Historicalfactors(=evolutionaryones)Whydifferentspeciesliveindifferentenvironments?(Adaptation).,longneckedgiraffeinsavannasofAfrica(widelydispersed,umbrella-shapedtrees);whitecoatedpolarbearinArctic(invisibletoprey)’snaturalselection? ess(survivalandreproduction)ofindividualswithinthepopulationthatresultsfromtheirinteractionwiththeirenvironment.“Survivaloffitness,eliminationof‘inferior’individual”塘缕晌侥斯傈朗撬滋坍坝段朗疹蝉自怒拦摈北好邑四昭世规寿巡符撞判茧生物适应与进化英文版生物适应与进化英文版Twoconditions(assumptions):,anismswithbestcharacteristicsare‘naturallyselected.’’s(andcolleagues)’&PeterGrant40-haDaphneMajorisland柠排掸彩吭燎士柄同贼桑文究篱塑占树蝴肃墒唤萧员项蜡簇夺澄腐表式舞生物适应与进化英文版生物适应与进化英文版Isthereaphenotypicvariationinbeaksize?拳五博亥猛攘贵虏抛疽帕蝶殃
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