BSC 2011 Lecture Notes - Lecture 34: Species Evenness, Species Richness, Evapotranspiration
21 Apr 2015
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Bsc2011 - integrated principles of biology 2 - lecture 34: communities. The relationship between the python and the alligator is an example of interspecific competition. Grows over, smothers and kills other vegetation. Thousandths of spiders living in large groups. Build webs 1-4 m wide, sometimes 100 m wide. Webs composed of multiple species interacting with each. Two or more different species interacting together in a specific area. Plants, animals, and microbes are linked by feeding relationships and other interactions. Often defined spatially, and by the dominant lifeform. Pine woods tree frog oak toad box turtle pine woods snake eastern diamondback rattlesnake black racer brown headed nuthatch bachman"s sparrow pine warbler great horned owl least shrew cotton mouse cotton rat. Closed community -- close association between species regulates distribution of whole community. Open community -- species are distributed independently to one another, regulated by environmental conditions. Species depend on each other to exist.
