1. Chipola College Marianna, Florida Dr. David Hilton Dr. Santine Cuccio Kari Kind-Adams Carole Chandler Lori Holland Debbie Yglesias

2. Latin name: Pinus palustris  Can live 500 years  Have a deep taproot (2-3 meters)  Require sandy soil  Found in Southeastern US  Uses: turpentine, timber, resin  97% of native longleaf pine forests have disappeared  Home to red-cockaded woodpecker

3.  5-12 years  Resistant to fire  May take years to reach ankle height

4.  Can grow 1.5 meters in one season  Early part of this stage pines are vulnerable to fire  Later in stage (2.5 meters) they are resistant

5.  150 years until maturity is reached  Can grow to 30-35 meters tall  Can measure 0.7 meters in diameter  Highly resistant to fire

6. Is there a correlation between longleaf pine height and diameter? Can tree height be accurately predicted by measuring stem diameter? Hypothesis There is a strong correlation between longleaf pine height and diameter, at least for a period of time.

8.  Random sample of 20%  Only living trees were counted  Failure rate: 58%

9.  Measured height to the top of the needles

10.  Measured diameter 5 centimeters from the base of plant

12. Diameter (cm)Height (m)2.60.453.11.254.01.004.71.95 1.30.402.60.303.10.604.10.454.81.50 2.00.402.71.003.10.554.11.604.81.60 2.00.402.70.403.20.504.11.054.91.95 2.10.302.70.503.21.104.21.504.92.00 2.10.452.81.703.20.604.22.004.91.75 2.10.502.80.553.30.904.21.654.91.35 2.20.402.80.703.40.504.31.405.02.30 2.20.502.80.653.40.704.31.605.01.40 2.20.452.80.503.41.804.31.455.22.05 2.22.502.90.503.40.854.31.205.31.30 2.20.402.90.853.61.404.41.905.42.05 2.30.352.90.553.61.054.41.005.51.70 2.40.553.00.453.71.454.41.305.61.80 2.50.503.00.753.81.354.51.855.72.15 2.50.453.00.603.91.004.51.655.92.10 2.50.603.01.053.91.154.61.405.91.55 2.50.553.00.453.90.804.61.506.02.70 2.60.803.11.104.01.354.61.156.32.65 2.60.653.10.604.00.904.71.906.72.80 6.72.55

13. Height (m) Diameter (cm)

14. Height (m) Number of Trees

16.  There appears to be a strong positive correlation between longleaf pine diameter and height at four years old.  How long this trend continues will be assessed again in 2 years as part of the longitudinal study.

17.  Barry Stafford, Jackson County Forester  Aaron Kinkaid, Forest Area Supervisor