Davs Mtns. Overview

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Presentation was used as an introduction to The Nature Conservancy\'s Davis Mountains Project in far west Texas. The presentation covers the history and development of the project as well as current research and management.

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Davs Mtns. Overview

  1. 1. The Davis Mountains Project
  2. 2. The Davis Mountains Project • Davis Mountains Preserve ~ 33,000 acres • Eleven conservation easements ~67,000 acres •100,000 acre project centered around the highland mass of Mount Livermore
  3. 3. CON SERVATION PLAN SU MMARY FEE EASEMEN T N AME D ATE ACREAGE ACREAGE U U p U D own Ranch 1984 (T LSS) TOT AL
  4. 4. CON SERVATION PLAN SU MMARY FEE EASEMEN T N AME D ATE ACREAGE ACREAGE U U p U D own Ranch 1984 (T LSS) 1. LJB Tract August 26, 1993 645 2. H arris T racts I&II May 17, 1995 324 TOT AL 969
  5. 5. CON SERVATION PLAN SU MMARY FEE EASEMEN T N AME D ATE ACREAGE ACREAGE U U p U D own Ranch 1984 (TLSS) 1. LJB Tract August 26, 1993 645 2. Harris Tracts I&II May 17, 1995 324 3. Balsinger Tract August 21, 1997 700 4. Ryan Tract August 21, 1997 1,274 TOTAL 969 1,974
  6. 6. CON SERVAT ION PLAN SU MMARY FEE EASEMEN T N AME D AT E ACREAGE ACREAGE U U p U D own Ranch 1984 (T LSS) 1. LJB Tract August 26, 1993 645 2. H arris T racts I&II May 17, 1995 324 3. Balsinger T ract August 21, 1997 700 4. Ryan Tract August 21, 1997 1,274 5. McIvor D ecember 19, 1997 11,809 20,603 Purchase /Resale TOT AL 12,778 22,577
  7. 7. CON SERVATION PLAN SU MMARY FEE EASEMEN T N AME D ATE ACREAGE ACREAGE U U p U D own Ranch 1984 (T LSS) 1. LJB T ract August 26, 1993 645 2. H arris Tracts I&II May 17, 1995 324 3. Balsinger Tract August 21, 1997 700 4. Ryan Tract August 21, 1997 1,274 5. McIvor D ecember 19, 1997 11,809 20,603 Purchase /Resale 6. McIvor D ecember 19, 1997 6,453 Easement D onation TOT AL 12,778 29,030
  8. 8. CON SERVATION PLAN SU MMARY FEE EASEMEN T N AME D ATE ACREAGE ACREAGE U U p U D own Ranch 1984 (TLSS) 1. LJB T ract August 26, 1993 645 2. Harris T racts I&II May 17, 1995 324 3. Balsinger T ract August 21, 1997 700 4. Ryan Tract August 21, 1997 1,274 5. McIvor D ecember 19, 1997 11,809 20,603 Purchase /Resale 6. McIvor D ecember 19, 1997 6,453 Easement D onation 7. McD onnold I February 27, 1998 1,069 8. D raughon T ract October 15, 1998 1,240 9. Crowley II N ovember 20, 1998 462 10. Sheriff’s T ract N ovember 23, 1998 18 11. McD onnald II D ecember 16, 1998 1,926 12. Burkitt Tract I D ecember 21, 1998 5,127 TOTAL 15,567 36,083
  9. 9. CON SERVATION PLAN SU MMARY FEE EASEMEN T N AME D ATE ACREAGE ACREAGE U U p U D own Ranch 1984 (TLSS ) 1. LJB T ract August 26, 1993 645 2. Harris Tracts I&II May 17, 1995 324 3. Balsinger T ract August 21, 1997 700 4. Ryan Tract August 21, 1997 1,274 5. McIvor D ecember 19, 1997 11,809 20,603 Purchase /Resale 6. McIvor D ecember 19, 1997 6,453 Easement D onation 7. McD onnold I February 27, 1998 1,069 8. D raughon T ract October 15, 1998 1,240 9. Crowley II N ovember 20, 1998 462 10. Sheriff’s Tract N ovember 23, 1998 18 11. McD onnald II D ecember 16, 1998 1,926 12. Burkitt Tract I D ecember 21, 1998 5,127 13. Burkitt II D ecember 21, 1998 960 TOTAL 16,527 36,083
  10. 10. CON SERVATION PLAN SU MMARY FEE EASEMEN T N AME D ATE ACREAGE ACREAGE U U p U D own Ranch 1984 (TLSS) 1. LJB T ract August 26, 1993 645 2. Harris T racts I&II May 17, 1995 324 3. Balsinger T ract August 21, 1997 700 4. Ryan Tract August 21, 1997 1,274 5. McIvor D ecember 19, 1997 11,809 20,603 Purchase /Resale 6. McIvor D ecember 19, 1997 6,453 Easement D onation 7. McD onnold I February 27, 1998 1,069 8. D raughon T ract October 15, 1998 1,240 9. Crowley II N ovember 20, 1998 462 10. Sheriff’s T ract N ovember 23, 1998 18 11. McD onnald II D ecember 16, 1998 1,926 12. Burkitt Tract I D ecember 21, 1998 5,127 13. Burkitt II D ecember 21, 1998 960 14. Valentine Ranch D ecember 28, 1998 2,300 TOTAL 16,527 38,383
  11. 11. CON SERVATION PLAN SU MMARY FEE EASEMEN T N AME D AT E ACREAGE ACREAGE U U p U D own Ranch 1984 (TLSS ) 1. LJB T ract August 26, 1993 645 2. Harris Tracts I&II May 17, 1995 324 3. Balsinger T ract August 21, 1997 700 4. Ryan Tract August 21, 1997 1,274 5. McIvor D ecember 19, 1997 11,809 20,603 Purchase /Resale 6. McIvor D ecember 19, 1997 6,453 Easement D onation 7. McD onnold I February 27, 1998 1,069 8. D raughon T ract October 15, 1998 1,240 9. Crowley II N ovember 20, 1998 462 10. Sheriff’s Tract N ovember 23, 1998 18 11. McD onnald II D ecember 16, 1998 1,926 12. Burkitt Tract I D ecember 21, 1998 5,127 13. Burkitt II D ecember 21, 1998 960 14. Valentine Ranch D ecember 28, 1998 2,300 15. Caldwell March 1, 1999 27,378 TOTAL 16,527 65,761
  12. 12. Not always welcome with all stakeholders…
  13. 13. DMP Vegetation & Landforms Vegetation Types oak-pinyon pine W alligator juniper pinyon pine mesic woodland
  14. 14. Mount Livermore
  15. 15. Upper Madera Canyon
  16. 16. Little Aguja Canyon
  17. 17. Dead Man Canyon
  18. 18. Ecological Significance • Center of endemism – 6 plant species – 8 animal species • Multiple globally rare species – 23 plant species Longspur Columbine – 9 animal species Shinners Tickle Tongue Mountain Short-Horned Lizard
  19. 19. Rio Grande Chub Population Multiple Remnant Aspen Stands
  20. 20. • Functioning “Sky Island” Ecosystem – Relatively natural fire regime – Intact ecosystem – Exemplary plant communities – Significant migratory corridor & stop-over
  21. 21. Archeological Resources Wolf Den Shelter Tall Rock Shelter
  22. 22. The Preserve as a Laboratory • Research Projects – Montz Quail, Sul Ross, A&M Kingsville – Mex Spotted Owl, Sul Ross – Pinyon Juniper Stand Development, SFA – Community Delineation of Ponderosa Forests, SFA – Regional Fire & Climate, Yale University – Eco-hydrology, UT Bureau Eco Geology – Spring Biodiversity & Function, Texas State – Feral Hog Diet & Demographics, Sul Ross – Aspen Genetics & Demography, Sul Ross & UTSA – Turkey genetics, Sul Ross – Dendrochronology of DM Pinus Species, Sul Ross – Dung Beetle Diversity, private study – Mammal Inventory, Texas Tech – Proposed Elk Demographics Project, Sul Ross – And more……
  23. 23. Montezuma Quail Habitat Modeling
  24. 24. Mexican Spotted Owl Habitat Modeling
  25. 25. Taking cores for eco-hydrology research
  26. 26. Fire History
  27. 27. Fire Suppression Juniper, Pinyon, Oak Size Class Distribution
  28. 28. Fire Suppression 300 275 250 Trees per hectare 200 150 100 50 18 16 15 8 3 1 0 0 5 10 15 20 25 30 35 > 40 Diameter (dbh; cm) classes midpoints Ponderosa Size Class Distribution
  29. 29. Davis Mtns Fuels • Low – grass • Med - woodland • 100-hr fuels • 1000-hr fuels Fuel Loads W low medium 100-hr 1000-hr
  30. 30. Thinning treatments on the Davis Mountains Preserve
  31. 31. Canopy opening in a mature ponderosa stand
  32. 32. Fire on the DMP • Partnership Approach – Texas Forest Service -National Park Service – US Fish & Wildlife -Region Wide TNC – Local Resources -TPWD
  33. 33. Private Lands Burning
  34. 34. Prescribed Fire on the Davis Mtns Preserve Prior to Prescribed Fire 25 Days Post Prescribed Fire
  35. 35. 7590 Acres
  36. 36. Exotic Species Management • Active trapping program – 15 traps with over 220 hogs taken in 1.5 years • Hog demographic and diet study in cooperation with Sul Ross State University • Landowner hog cooperative in partnership with USDA Wildlife Services
  37. 37. Landowner Field Days
  38. 38. Volunteer Program Trail Work ~1700 hours Volunteer Work Weeks
  39. 39. Public Activities Public Open Weekends Public Hiking Trail
  40. 40. Thanks

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