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COOPERATIVE INTERRELATOINSHIPS IN MISSOURI FORESTS.

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Presentation on theme: "COOPERATIVE INTERRELATOINSHIPS IN MISSOURI FORESTS."— Presentation transcript:

1 COOPERATIVE INTERRELATOINSHIPS IN MISSOURI FORESTS

2 ECOSYSTEM All the organisms and the non-living environment within a defined area

3 DESERT

4 LAKE

5 COMMUNITY Consists of all the interacting animal populations within an ecosystem.

6 FOOD WEB

7 MANY DIFFERENT COMMUNITIES EXIST IN A SINGLE FOREST

8 SYMBIOSIS Two species living together in close association over an extended time. Also called “symbiotic relationships”

9 3 TYPES OF SYMBIOSIS 1. PARISITISM 2. COMMENSALISM 3. MUTUALISM

10 PARISITISM A symbiotic relationship where the organism lives in or on their host and does harm to their general well being, sometimes parasites are fatal. The parasite benefits, the host does not.

11 ONE EXAMPLE OF PARISITISM Ticks on a deer.

12 LEECHES

13 COMMENSALISM A symbiotic relationship where one species benefits, the other is not affected positively or negatively.

14 ONE EXAMPLE OF COMMENSALISM Birds nesting in a tree

15 Certain species of millipede and silverfish inhabit the nests of army ants and live by scavenging on the refuse of their hosts, but without affecting the ants.

16 MUTUALISM A symbiotic relationship where both organisms benefit from the relationship.

17 ONE EXAMPLE OF MUTUALISM Bees and flowers

18 This powerpoint was kindly donated to is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.


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