UGA BIOL 1108 - Communityecology (5 pages)

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Communityecology



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Communityecology

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Pages:
5
School:
University of Georgia
Course:
Biol 1108 - Principles Bio Ii

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BIOL 1108 Edition 1nd Lecture 23 Outline of Last Lecture I Learning Objectives II Defining Populations III Bide IV Population Monitoring V Demography VI Life history VII Population Models VIII Population Regulation Outline of Current Lecture I Learning Objectives II Community III Competition IV Symbiosis V Succession VI Species Diversity VII Trophic Interactions and Structure Current Lecture I Learning Objectives These 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 II Describe how organisms interact with one another help harm or no effect using community ecologists terminology Describe the components that make up diversity Describe food chains and food webs Relate diversity to food webs Community Organisms inhabiting the same area within which they could interact Typically referring to populations of different species Interactions o Help o Harm o No effect 0 III Competition for limited resources The species that has an advantage of getting or using a resource will outcompete the other species o This can lead to a competitive exclusion of one species Resource partitioning o Space o Character displacement slightly different morphological features to eat certain foods o Time Predation o Cryptic coloration camouflage o Aposematic coloration bright colors to warn others o Batesian mimicry a harmless species mimics a harmful one o Mullerian mimicry two unpalatable species mimic each other Herbivory o IV Grazers eat plant partially Symbiosis Two or more species that live in direct contact with one another Parasitism o Parasite gaining energy and resources from the host o Ex Tapeworm consumes host s resources and host is limited Mutualism o Both organisms benefit from each other Commensalism 0 o Only one organism is benefiting while the other doesn t gain or loss anything Facilitation or 0 o Not intimate contact o Plants decompose to fertilize the soil which benefits other



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