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286TQ1322.pdf - Biology 286: Introduction to Ecology and...

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Biology 286: Introduction to Ecology and EvolutionThought/Review Questions: Spring 2022WEEK 13:1.How was the DeWit replacement series experimental design used to look at the effects ofinterspecific vs. intraspecific competition in the twoAvenaoat species?2.What data demonstrate thatA. barbatais a superior competitor toA. fatua?Compare thestrength of intraspecific competition for each species.3.As different species compete over a limiting resource, they may carry it out in slightly differentways.Explain the differences between exploitation, interference and pre-emptive competitionand be able to provide an example of each.4.What is allelopathy?Be able to provide an example.5.We will continue to think about competition among members of a community.How would youdescribe the difference between a linear competitive hierarchy and a network of competitiveinteractions?6.What is the Law of Limiting Similarity?7.Consider the niche data Robert McArthur collected on five species of warblers.Can it be used toargue for or against the law of limiting similarity?Explain.8.What is character displacement and how does competition contribute to its occurrence?Beable to provide an example.9.As different species compete over a limiting resource, they may carry it out in slightly differentways.Explain the differences between exploitation, interference and pre-emptive competitionand be able to provide an example of each.10.What are spring ephemerals and how is their life history shaped by competition?11.What is a biennial?12.What is garlic mustard and why has it been such a successful invasive?Who is it competingwith?13.What is an invasive species and what characteristics make certain species successful invaders?14.Why can invasive species be an ecological threat in the habitat to which they were introducedbut not in their native habitat?15.What is the Asian needle ant and why does it pose a threat to native ant populations as well asto humans?16.Why can phenotypic plasticity be adaptive or maladaptive?17.Why is the harlequin ladybird beetle (Harmonia axyridis) found in the US, if it is native to Asia?18.What are the color morphs of the harlequin ladybird beetle (Harmonia axyridis) and what arethe costs and benefits associated with each morph?How does selection on these affect theirregional and temporal distribution?19.What evidence suggests that phenotypic variation in the beetle may be both geneticallydetermined and phenotypically plastic?20.We talked about competition between native and invasive ladybird beetles.How can apredator/parasite/pathogen lead to apparent competition between two prey species?Howdoes the harlequin ladybird beetle benefit from it?21.Where is the Chinese wattle-necked softshell turtle native to?Where is it currently potentiallystill found in the wild?Why?What conservation dilemma does it pose in that habitat?22.What is the current status of the American flamingo? What is the argument for changing itsprotective status?
23.What is coevolution and why does it require reciprocal selection pressure by each interacting
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Term
Spring
Professor
Dr. Yost
Tags
Evolution, Interspecific competition, Coccinellidae

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