1 / 46

TRENDS OF DEER AND DEER HUNTERS ON PRINCE OF WALES ISLAND

TRENDS OF DEER AND DEER HUNTERS ON PRINCE OF WALES ISLAND. Todd J. Brinkman, University of Alaska Fairbanks. OUTLINE. Titus and Beier. Background Deer Hunters Deer Populations Future Opportunities. Hunters experiencing difficulty harvesting enough deer to meet their needs

alaric
Download Presentation

TRENDS OF DEER AND DEER HUNTERS ON PRINCE OF WALES ISLAND

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. TRENDS OF DEER AND DEER HUNTERS ON PRINCE OF WALES ISLAND Todd J. Brinkman, University of Alaska Fairbanks

  2. OUTLINE Titus and Beier Background Deer Hunters Deer Populations Future Opportunities

  3. Hunters experiencing difficulty harvesting enough deer to meet their needs #1 Game management issue amongst State and Federal Agencies in southeast Alaska. Unit 2 Deer Planning Subcommittee of the SE AK Regional Advisory Council

  4. 1950-1995 Clearcut logging Roads

  5. 600 500 400 Logged mmb 300 200 100 0 1900 1920 1940 1960 1980 2000 Year Logging Boom & Bust

  6. Brinkman et al. 2007. J. Ecological Anthropology; Brinkman et al. 2009. Ecology and Society • Hunter interviews • Deer hunter patterns • Deer population trends • Deer habitat and access • Used geographic information systems to quantify changes in: • Logging activity • Forest habitat composition • Road access through time

  7. Brinkman 2006. Community Report • 88 hunters • 31 Native, 57 non-Native • Average age = 47 (18 to 94) • Average hunting experience = 20 years • Average harvest = 6 deer/yr

  8. Hunter/Deer/Land 1950-1995 (Ellanna and Sherrod 1987, Brinkman et al. 2007)

  9. Brinkman et al. 2009. Ecology and Society Best hunting = 2 year old clearcut Good hunting = 0-8 year old clearcut Unhuntable (86%) = clearcut >12 years

  10. Clearcut logging Roads Second-growth forest

  11. Brinkman et al. 2009. Ecology and Society

  12. ~3000 km of road

  13. ~1,650 km of road

  14. How are the deer responding to these changes?

  15. Wallmo and Schoen 1980 Hanley 1984, 1993 Schoen et al. 1988

  16. Klein 1965 Wallmo 1981 Parker et al. 1999 White et al. 2009

  17. Energy costs dramatically (5 times normal) elevated when snow depth above knee height (Parker et al. 1984) • Particularly in wet and heavy snow Wallmo and Schoen 1981

  18. Photo Courtesy LaVern Beier and Kim Titus

  19. How have these changes affected deer population size on POW? Photo Courtesy LaVern Beier and Kim Titus

  20. DNA-filled coating DEER PELLET

  21. Brinkman et al. 2009a. Conservation Genetics • Identify individual deer • Allowing estimates of population size. • Identify the sex of the deer • Determine the relationship between deer on POW

  22. 3 years (2006-2008) 3 month/yr (March-May)

  23. Extract DNA

  24. Microsatellite Markers Isolate pieces of DNA that are unique among individual deer

  25. 634 unique individuals • Probability of Identity = 0.0003 • 1 of 3,333 • Success rate • 2006 – 41% • 2007 – 50% • 2008 – 87%

  26. 30% decline overall

  27. Young Harvest (<30 year old) 10.5 deer/km2 Nonharvest 12.3 deer/km2

  28. Nonharvest 12.3 deer/km2 Old harvest (>30 years old) 7.6 deer/km2

  29. A WHOLE BUNCH! Or NOT ENOUGH!

  30. Pellet counts vs. DNA-based estimates? • Increase the value of 30 years of hard work? • Sex ratios • 2008 – 25% males (1 out of 4) • Habitat use

  31. 8 2 3 12 6 8 2 12 2 9 8 16 7 9 11 5

  32. Identification of Gene Flow (mixing of deer subpopulations)

  33. Staney 36 km Steelhead Maybeso 1 Effective Migrant every 5 years

  34. Thank You Very Much! The End

  35. Funding was primarily provided by the USDA Forest Service. Funding and in-kind support was also provided by the Alaska Trappers Association, the Resilience and Adaptation Program (IGERT, National Science Foundation 0114423), the Bonanza Creek LTER (National Science Foundation grant 0423442) and the University of Alaska Fairbanks Biology and Wildlife Department and Institute of Arctic Biology. I thank all the hunters who participated in this study for kindly sharing their time, knowledge, and hunting experiences. Craig Community Association, Hydaburg Cooperative Association (especially Tony Christianson), and Klawock Cooperative Association assisted with interview participation and scheduling. Alva Perotrovich, Joey Adams, Nicole Phillips, and Rett Janzen. Dr. Terry Chapin, Dr. Kris Hundertmark, Dr. Gary Kofinas, Dr. Dave Person, and Dr. Winston Smith

More Related