SNC1D Communities
What is a community? All the populations of the different species that interact in a specific area or ecosystem
Community
Main Idea Certain species will have more impact in their community than other species. Different types of species will impact the ecosystem in different ways. We will be looking that the types of species.
Dominant Species Species that are so abundant that they have the biggest biomass of any community member
Biomass Total mass of living organisms in an area
Dominant Species
Keystone Species A species that can greatly affect population numbers and that health of an ecosystem
Keystone Species example
Ecosystem Engineer A species that causes such dramatic changes to landscapes that it creates a new ecosystem
Ecosystem Engineer
Ecosystem Engineer
Works cited http://www.google.ca/imgres?imgurl=http://overland.heybrian.com/images/expeditions/amsterdam_to_alaska/beaver_dam.jpg&imgrefurl=http://overland.heybrian.com/expeditions/amsterdam_to_alaska/expedition_log/lake.shtml&usg=__VTd7tO7IUkPkQI_29Z2OCUGKkCY=&h=300&w=400&sz=68&hl=en&start=0&zoom=1&tbnid=0UAPkoGbtiLoaM:&tbnh=138&tbnw=184&prev=/images%3Fq%3Dbeaver%2Bdam%2Bin%2Ba%2Briver%26um%3D1%26hl%3Den%26sa%3DX%26biw%3D1440%26bih%3D742%26tbs%3Disch:1&um=1&itbs=1&iact=hc&vpx=328&vpy=240&dur=738&hovh=194&hovw=259&tx=113&ty=93&ei=zrifTKrdEYSisQPs8NjVAQ&oei=zrifTKrdEYSisQPs8NjVAQ&esq=1&page=1&ndsp=26&ved=1t:429,r:8,s:0 http://www.google.ca/imgres?imgurl=http://www.bartlettinn.com/assets/images/beaver.jpg&imgrefurl=http://www.bartlettinn.com/wildlife.html&usg=__ajQsqE9clViPBNvtxmCCTvimcCE=&h=750&w=1000&sz=369&hl=en&start=0&zoom=1&tbnid=R5pQYfCMKdfPoM:&tbnh=146&tbnw=207&prev=/images%3Fq%3Dbeaver%2Bin%2Ba%2Briver%26um%3D1%26hl%3Den%26biw%3D1440%26bih%3D742%26tbs%3Disch:1&um=1&itbs=1&iact=rc&dur=234&ei=UbmfTPXCC5KksQOBrbjVAQ&oei=UbmfTPXCC5KksQOBrbjVAQ&esq=1&page=1&ndsp=28&ved=1t:429,r:11,s:0&tx=88&ty=47 http://www.google.ca/imgres?imgurl=http://clminternship.org/blog/wp-content/uploads/2010/08/Greenline.jpg&imgrefurl=http://clminternship.org/blog/%3Fpaged%3D2&usg=__RWW09NDPZIFttZnO3oHjsADcR1c=&h=1712&w=2288&sz=852&hl=en&start=52&zoom=1&tbnid=IABDtclVT37knM:&tbnh=158&tbnw=234&prev=/images%3Fq%3Ddominant%2Bspecies%2Bin%2Ba%2Briver%26um%3D1%26hl%3Den%26sa%3DN%26biw%3D1440%26bih%3D785%26tbs%3Disch:10,1300&um=1&itbs=1&ei=abmfTPfPIcTcnAfOyrzDDQ&iact=hc&vpx=748&vpy=160&dur=526&hovh=194&hovw=260&tx=113&ty=63&oei=L7afTK-fB4z4swPJseDVAQ&esq=3&page=3&ndsp=27&ved=1t:429,r:3,s:52&biw=1440&bih=785 ON Science 9- McGraw-Hill Ryerson