plant competition
DESCRIPTION
Plant Competition. Today we will…. Understand differences between intra specific and inter specific competition Measure plant competition in Sanford Woodlot Apply our knowledge of correlations to understanding competition dynamics. Competition. Intraspecific (within species). - PowerPoint PPT PresentationTRANSCRIPT
Today we will…
• Understand differences between intraspecific and interspecific competition
• Measure plant competition in Sanford Woodlot
• Apply our knowledge of correlations to understanding competition dynamics
Competition
Direct Indirect• Effects of one species
impact another species indirectly
• Apparent Competition• Exploitative Competition
Animals: physical combatPlants: release of toxins
Apparent Competition (Indirect)
Abundance of one species increases likelihood of consumption of other species
Exploitative Competition (Indirect)
Individuals use same limiting resource (most common type of competition)
What are the trade-offs between conducting
controlled, manipulative experiments and observational studies?
Today’s Activity: Measuring Competition
• We will measure:
– Intraspecific competition in beech trees
– Interspecific competition between beech trees and other trees (collectively)
Today’s Activity: Measuring Competition
• Methods: What will you do?
–Along transect, find focal beech tree, measure DBH
– From that tree measure DBH of nearest beech and nearest “other” tree
–Continue at every 6 meters (6 focal trees total)
Today’s Activity: Measuring Competition
• Each team needs
– One 30-meter tape
– Coursepack
– Writing utensils