ENVI 101 Lecture Notes - Lecture 5: Pinnation, Shade Tolerance, Decomposer
13 Sep 2016
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Document Summary
Temperate deciduous forests lose their leaves in the winter- dominate ny. 3 main in nature preserve: beaches, maples, hemlocks. Major characteristics of the temperate deciduous forest biome: Stratification: in temperate deciduous forests, there are 3 stratifications- moss/lichens, understory (small trees), canopy (tallest trees) Are pretty to attract pollinators to come to them. Detritivores: organisms that only feed on organic matter to absorb nutrients for themselves. Detritus: organic particles produced by decomposition of plant and animal parts. Pits and mounds: occur after some disturbance- roots are ripped up & create mound where tree was. Coarse woody debris: put carbon and nitrogen back into ecosystem. Dead wood-snags: dead tree still standing provides habitat. Lichens: fungus & algae, or blue/green bacteria that absorb pollutants. Fungus and algae have a mutualistic relationship and work together- fungus supplies the home and algae supplies the nutrients. Mosses: natures sponge- absorbs a lot of water. Not vascular, reproduce using spores, need shade and h2o.
