Shawn P. Haskell
(Ph.D. candidate, Wildlife Science)
Texas Tech University
Dept. of Natural Resources Management
102 Goddard Building
Lubbock, TX 79409-2125
phone: 806-742-1983
email: shawn.haskell@ttu.edu
[moving soon to Vermont as State Deer Biologist, effective 10/15/2007]
Research Interests:
- Impacts of petroleum development on fauna of Alaska's North Slope & Prince William Sound
- Wildlife population ecology and predator-prey dynamics
- Wildlife research and inventory techniques
- Ungulate behavior
B.S. Wildlife Management: University of Maine at Orono; 5/97
M.S. Wildlife Science: Calving caribou in the northern oilfields of Alaska; 5/03, TTU
published manuscripts on this topic:
Haskell&Ballard2004_Rangifer_CAHProductivity.pdf
Haskelletal2006_Arctic_DynamicCalvingCaribou.pdf
The following ms is still in review.
Haskelletal_AnnualRehabituationCAH_Implications.pdf
Below: 2006 TWS poster summarizing caribou responses to oilfields (with additional information on calving-caribou area use related to road densities contrary to previously published suggestions)
CaribouPoster_TWS 2006_2Slides.pdf
The following ms is not directly related to oilfields, but is pertinent to the issue if you choose to consider ecology of arctic Alaskan caribou and potential for radiocollar effects on cows and calves in your studies.
Haskell&Ballard2007_JWM_ModelingWAH.pdf
Ph.D. project: Ecology of sympatric deer species in west-central Texas: methodology, reproductive biology, and mortality and antipredator behavior of adult females and fawns; 1/04-present, TTU
Committee chairs: Drs. Warren B. Ballard & Mark C. Wallace
1st draft Dissertation (subject to revisions)
Defense slides: Crockett Deer Defense
2007 Crockett Deer Study Final Progress Report.pdf (basically just my dissertation and David Butler's thesis)
Deer Posters:
2006 TWS regarding postpartum antipredator strategies - part of the working ms (i.e., last chapter of dissertation) DeerGroupCohesion_TWS2006_Poster_2slides.pdf
2007 TWS regarding capturing & aging deer fawns - Capture&Aging_TWS_2007Poster.pdf
Some referenced MATLAB files:
MATLAB m.files useful for wildlife radiotelemetry beacon study and point location estimation
by maximum likelihood and/or weighted-incenter methods
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MATLAB m.files for population modeling of the Western Arctic Caribou Herd as well as Messier's 1995 paper useful for reference
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MATLAB m.files for Negative Binomial (GLM) AICc Monte Carlo Power Analysis of some caribou count data from the Spine and Oliktok Roads of North Slope oilfields, Alaska, during calving periods 1982-90 and 2000-02. NBAICMCPA.m is the executable script-file.
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MATLAB m.files for minimum convex polygon home-range estimation (i.e., homerange.m). These are from Dr. Rich Strauss' class taught in Biology at TTU - either worked thru in class or as homework.
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Publications
Haskell, S. P., W. B. Ballard, D. A. Butler, M. C. Wallace, T. R. Stephenson, O. Alcumbrac, and M. H. Humphrey. Accepted. Factors affecting birth dates of sympatric deer in west-central Texas. Journal of Mammalogy 89:000-000
Haskell, S. P. Accepted. First record of a river otter, Lontra canadensis, captured on the northern coast of Alaska. Canadian Field-Naturalist
Haskell, S. P., W. B. Ballard, D. A. Butler, N. M. Tatman, M. C. Wallace, C. O. Kochanny, and O. Alcumbrac. 2007. Observations on capturing and aging deer fawns. Journal of Mammalogy 88: in press.
Haskell, S. P., and W. B. Ballard. 2007. Accounting for radiotelemetry signal flux in triangulation point estimation. European Journal of Wildlife Research 53:204-211
Haskell, S. P., and W. B. Ballard. 2007. Modeling the Western Arctic caribou herd during a positive growth phase: potential effects of wolves and radiocollars. Journal of Wildlife Management 71:619–627.
Butler, D. A., W. B. Ballard, S. P. Haskell, and M. C. Wallace. 2006. Limitations of thermal infrared imaging for locating deer fawns in semi-arid shrub communities. Wildlife Society Bulletin 34:1458–1462.
Haskell, S. P., R. M. Nielson, W. B. Ballard, M. A. Cronin, and T. L. McDonald. 2006. Dynamic responses of calving caribou to oilfields in northern Alaska. Arctic 59(2):179–190.
Haskell, S. P., and W. B. Ballard. 2004. Factors limiting productivity of the Central Arctic Caribou Herd of Alaska. Rangifer 24(2):71–78.
Lawrence, R. K., S. Demarais, R. A. Relyea, S. P. Haskell, W. B. Ballard, and T. L. Clark. 2004. Desert mule deer survival in southwest Texas. Journal of Wildlife Management 68(3):561–569.
Cronin, M. A., S. P. Haskell, and W. B. Ballard. 2003. The frequency of antlerless female caribou and reindeer in Alaska. Rangifer 23(2):67–70.
In Review:
Haskell, S. P., W. B. Ballard, and M. A. Cronin. In review. Annual re-habituation of calving caribou to oilfields in northern Alaska: implications for expanding development.
Haskell, S. P., D. A. Butler, W. B. Ballard, M. J. Butler , M. C. Wallace, and M. H. Humphrey. In review. Deer density estimation in west-central Texas: old versus new ground techniques with mark-resight as a comparative baseline.
Butler, D. A., S. P. Haskell, W. B. Ballard, M. C. Wallace, C. M. Britton, and M. H. Humphrey. In review. Differences in parturition timing, birth sites, and fawn bed sites for sympatric deer populations.
In Prep:
Haskell, S. P., et al.. Productivity, mortality, and antipredator strategies of female and fawn deer in west-central Texas: a tale of two species.
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PHOTO GALLERIES
Moose Hunt 2006 Moose Hunt 2003 Kodiak Hunt 2002 Man's Best Friend