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by: Heer Patel

Ecology 110

Heer Patel
GPA 4.0
Introductory Biology for non-Science Majors
Christiane Healey

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About this Document

This includes a brief overview of ecology for intro bio for non-majors. It includes Ecology, Bioaccumulation, Biomagnification, Communities, Energy Flow and Food Webs, Species Diversity and communi...
Introductory Biology for non-Science Majors
Christiane Healey
Class Notes
#Bio #Biology #EneryFlow #Ecology #Bioaccumulation #Species #Relationships
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This 2 page Class Notes was uploaded by Heer Patel on Friday October 9, 2015. The Class Notes belongs to 110 at University of Massachusetts taught by Christiane Healey in Spring2015. Since its upload, it has received 40 views. For similar materials see Introductory Biology for non-Science Majors in Biology at University of Massachusetts.

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Date Created: 10/09/15
ECOLOGY Ecology Ecology Study of interactions between organisms and their environment If the sun stopped shining life on Earth would go extinct Abiotic and biotic factors in uence where organisms can live Distribution of a species geographic range Abiotic factors of the biosphere Primarily aquatic Primarily terrestrial Interaction s with other individuals of other species competition predationherbivory parasitism mutualism commensalism Energy ow and food webs Energy and nutrients move through organisms with ecosystems All organisms are either consumed of end up as detritus Bioaccumulation and biomagni cation Bioaccumulation chemical compounds toxins that are not excretedmetabolized can accumulate in an individual39s body Biomagni cation the progressive increase in the concentration of toxins in organisms with increasing trophic levels Ex PhytoplanktonltZoopanktonlt primary carnivoreltsecondary carnivore Species Interaction and Communities Bioaccumulation and Biomagni cation Energy ow in marine systems Phytoplankton producer Zooplankton primary consumer Secondary consumer Tertiary consumer Quaternary consumer What are communities A community Is a group of interacting species Is an assemblage of populations of different species in the same area Can39t describe a community completely Ecologists focus on a relevant part of a whole community How can we characterize community structure Species diversity Species richness Species evenness relative abundance Species composition Why should we care about species richness Ecosystem services don39t work well if few species present Positive relationship species richness and community function Species diversity and community function Positive relationship species richness and community function


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