Modern Pollen Assemblages Along Transects Across Two Lowland Tropical Lakes

361 views

Published on

Joe N. Burgess non-thesis presentation, Spring 2009

Published in: Education, Travel, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
361
On SlideShare
0
From Embeds
0
Number of Embeds
4
Actions
Shares
0
Downloads
6
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Modern Pollen Assemblages Along Transects Across Two Lowland Tropical Lakes

  1. 1. Modern Pollen Assemblages Along Transects Across Two Lowland Tropical Lakes Joe N. Burgess M.S. Degree, Spring 2009 Department of Geography The University of Tennessee, Knoxville
  2. 2. <ul><li>Study Sites </li></ul><ul><ul><li>Laguna Hule </li></ul></ul><ul><ul><li>Laguna Maria Aguilar </li></ul></ul><ul><li>Transects </li></ul><ul><ul><li>1 from Laguna Hule </li></ul></ul><ul><ul><li>2 from Laguna Maria Aguilar </li></ul></ul><ul><ul><li>Collected by Edward Gray and Glen Hyman in July and August of 1993 </li></ul></ul>
  3. 3. Location of study region in Costa Rica. Source: Horn (2001)
  4. 4. Location of Laguna Maria Aguilar and Laguna Hule on the Caribbean slope of Costa Rica. Source: Horn (2001)
  5. 5. Location of transect across Laguna Hule along which Teddy Gray and Glen Hyman collected 11 dredge samples. Source: Gray (1995)
  6. 6. Aerial photo of study area. Source: Instituto Geográfico Nacional. Laguna Hule is the large lake in the lower center of the photograph. Laguna Mariá Aguilar is the small lake in the upper right corner of the photograph.
  7. 7. Laguna Hule
  8. 8. Laguna Hule
  9. 9. Laguna Hule
  10. 10. Laguna Hule
  11. 11. Laguna Hule
  12. 12. Laguna Maria Aguilar
  13. 13. Laguna Maria Aguilar
  14. 14. Laguna Maria Aguilar
  15. 15. Pollen concentration in surface samples of Laguna Maria Aguilar Transect A
  16. 16. Pollen concentration in surface samples of Laguna Maria Aguilar Transect B
  17. 17. Pollen percentages in surface samples of Laguna Maria Aguilar Transect A
  18. 18. Pollen percentages in surface samples of Laguna Maria Aguilar Transect B
  19. 19. Pollen concentration in surface samples of Laguna Hule
  20. 20. Pollen percentages in surface samples of the Laguna Hule transect.
  21. 21. Percentage of fern spores in the surface samples of the Laguna Hule transect.
  22. 22. Significance of Study <ul><li>Rare study of within basin pollen sedimentation in the neotropics </li></ul><ul><li>Aids in selection of core sites </li></ul><ul><ul><li>Near shore taxa in abundance closer to shore </li></ul></ul><ul><ul><li>Highest concentration of pollen in the center </li></ul></ul>

×