BIOLOGY 2F03 Lecture Notes - Reed Bed, Photosynthesis, Habitat
Document Summary
Directly by affecting metabolism indirectly by changing the habitat can you think of ways how temperature affect organisms via habitat. Examples: causing currents, stratifying a lake, freezing water (cold drought), drying the soil. Question can plants regulate their temperature: some plants can. Temperature as a resource flower and insect = 25c. Dryas flowers keep tracking sun for several hours each day sunlight reflects parabolic-shaped flowers to heat an insect. Warming the flowers to attract insects (dryas) Question if plants can regulate their own temperature, can they affect their environment too: shading, cooling and warming depending on external temperature. Winter increases temperature and makes the house warmer, evapotranspiration summer shades and cools soil surface in full sun heats to high temperature shading of soil surface by low shrubs lowers maximum temperatures. A layer of leaf litter lowers maximum temperatures even more. Plants modify their microhabitat t by: shading, accumulating litter, accumulating o horizon.
