BIOA02H3 Lecture 12: Lec12 - Plant Life on the Edge.doc
hans15149 and 39222 others unlocked
43
BIOA02H3 Full Course Notes
Verified Note
43 documents
Document Summary
Slide one plant life on the edge. Slide two adaptations huge rage of habitats. Slide three conditions of life on the edge. Frost: heat / drought, perpetual inundation, overabundance of freshwater, salty habitats, toxic soils (heavy metals, extreme nutrient limitation. Slide four habitats common in southern ontario: aquatic plants, plants are submerged in the water, some are on the water"s surface. Slide five the freshwater environment: water is never limiting, however, the overabundance of water means that other things in turn become limiting. Example: co2 / o2 is much more abundant in the air than it is in the water. Light attenuates very quickly or decreases in the photosynthetically active spectrum as you go deeper under a water column. If you compare the nutrient content in water and soil, soil contains much more: plants have to adapt to running water currents to prevent damage of the wear and tear of leaf and stem.