Drought and Grazing Effects on Oklahoma Phlox (Polemoniaceae, Phlox oklahomensis)

DOI: 10.4236/ajps.2013.46A002   PDF   HTML   XML   3,251 Downloads   4,570 Views   Citations

Abstract

Oklahoma phlox (Phlox oklahomensis Wherry) is endemic to Butler, Chautauqua, Comanche, Cowley, and Elk Counties of Kansas and Woods and Woodward Counties of Oklahoma. The species comprises populations of a few scattered individuals to several hundred in mixed-grass prairie sites in Oklahoma where cow-calf production is the common agricultural enterprise. It has successfully withstood periods of short-term drought (1 to 4 years) under light to moderate continuous stocking rates (41 to 52 animal unit days per hectare). Under heavy continuous stocking rates and/or prolonged drought, populations of P. oklahomensis tend to decrease in size and number and may disappear in some localities. Prolonged heavy stocking rates and drought will disrupt the reproductive cycle, severely limiting seed production and recruitment of new individuals to populations. During drought periods, livestock managers should use lighter stocking rates or deferred grazing to ensure rapid recovery of all prairie plants, including P. oklahomensis, once the drought ends. This recommendation would likely sustain prairie sites during long-term (longer than 10 years) droughts as well.

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T. Springer, S. Gunter, R. Tyrl and P. Nighswonger, "Drought and Grazing Effects on Oklahoma Phlox (Polemoniaceae, Phlox oklahomensis)," American Journal of Plant Sciences, Vol. 4 No. 6A, 2013, pp. 9-13. doi: 10.4236/ajps.2013.46A002.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] E. T. Wherry, “The Genus Phlox,” Morris Arboretum Monograph, 111, Philadelphia, 1955, p. 21.
[2] V. Grant, “Natural History of the Phlox Family,” Systematic Botany, MartinusNijhoff, The Hague, 1959.
[3] W. H. Horr and R. L. McGregor, “Kansas Plants New to Kansas Herbaria IV,” Transactions of the Kansas Academy of Science, Vol. 52, No. 3, 1949, pp. 346-349. doi:10.2307/3625800
[4] W. H. Horr and R. L. McGregor, “Kansas Plants New to Kansas Herbaria VI: Including a New form of Liatris punctata,” Transactions of the Kansas Academy of Science, Vol. 54, No. 2, 1951, pp. 212-217. doi:10.2307/3625786
[5] T. L. Springer, “Distribution, Habitat, and Reproductive Biology of Phlox oklahomensis (Polmoniaceae),” M.S. Thesis, Oklahoma State University, Stillwater, 1983.
[6] T. L. Springer and R. J. Tyrl, “Distribution, Habitat, and Reproductive Biology of Phlox oklahomensis (Polemoniaceae),” Proceeding of the Oklahoma Academy of Science, Vol. 69, 1989, pp. 15-21. http://digital.library.okstate.edu/OAS/oas_htm_files/v69/p15_21nf.html
[7] E. S. Ayensu and R. H. DeFilipps, “Endangered and Threatened Plants of the United States,” Smithsonian Institution and World, Wildlife Fund, Inc., 1978, Washington DC, 403 Pages.
[8] US Fish and Wildlife Service, “Endangered and Threatened Wildlife and Plants: Review of Plant Taxa for Listing as Endangered or Threatened Species,” Federal Register, Vol. 45, 1980, p. 82557.
[9] Oklahoma Natural Heritage Inventory, “Oklahoma Natural Heritage Inventory Plant Tracking List,” 2012. http://www.biosurvey.ou.edu/download/publications/onhi_plants_tracking_52012.pdf
[10] Oklahoma Natural Heritage Inventory, “A Guide to Rare Species Status and Rarity Ranking Codes,” 2010. http://www.oknaturalheritage.ou.edu/ranking_guide.html
[11] M. C. Stambaugh, R. P. Guyette, E. R. McMurry, E. R. Cook, D. M. Meko and A. R. Lupo, “Drought Duration and Frequency in the US Corn Belt during the Last Millennium (AD 992-2004),” Agricultural and Forest Meteorology, Vol. 151, No. 2, 2011, pp. 154-162. doi:10.1016/j.agrformet.2010.09.010
[12] Federal Emergency Management Agency, National Mitigation Strategy, “Partnerships for Building Safer Communities. FEMA (Federal Emergency Management Agency),” Washington DC, 1995, p. 2.
[13] R. L. Gillen and P. L. Sims, “Stocking Rate and Weather Impacts on Sand Sagebrush and Grasses: A 20-Year Record,” Rangeland Ecology and Management, Vol. 59, No. 2, 2006, pp. 145-152. doi:10.2111/05-016R1.1
[14] E. D. Rhoades, L. F. Locke, H. M. Taylor and E. H. McIlvain, “Water Intake on a Sandy Range as Affected by 20 Years of Differential Cattle Stocking Rates,” Journal of Range Management, Vol. 17, No. 4, 1964, pp. 185-190. doi:10.2307/3895762
[15] M. C. Shoop and E. H. McIlvain, “Why Some Cattlemen Overgraze—And Some Don’t,” Journal of Range Management, Vol. 24, No. 4, 1971, pp. 252-257. doi:10.2307/3896938
[16] P. L. Sims and R. L. Gillen, “Rangeland and Steer Responses to Grazing in the Southern Plains,” Journal of Range Management, Vol. 52, No. 6, 1999, pp. 651-660. doi:10.2307/4003637
[17] R. L. Gillen and P. L. Sims, “Stocking Rate and Cow-Calf Production on Sand Sagebrush Rangeland,” Journal of Range Management, Vol. 55, No. 6, 2002, pp. 542-550. doi:10.2307/4003997
[18] R. L. Gillen and P. L. Sims, “Stocking Rate, Precipitation, and Herbage Production on Sand Sagebrush-Grassland,” Journal of Range Management, Vol. 57, No. 2, 2004, pp. 148-152. doi:10.2307/4003912
[19] T. L. Springer and R. J. Tyrl, “Status of Phlox oklahomensis (Polemoniaceae) in Northwestern Oklahoma and Adjacent Kansas: Assessment 20 Years Later,” Proceeding of the Oklahoma Academy of Science, Vol. 83, 2003, pp. 89-92. http://digital.library.okstate.edu/OAS/oas_pdf/v83/p89_92.pdf
[20] D. A. Savage and L. A. Jacobson, “The Killing Effects of Heat and Drought on Buffalo Grass and Blue Grama Grass at Hays, Kansas,” Journal of the American Society of Agronomy, Vol. 27, No. 7, 1935, pp. 566-582. doi:10.2134/agronj1935.00021962002700070010x
[21] R. P. Guyette, M. C. Stambaugh, D. C. Day and R. M. Muzika, “Predicting Fire Frequency with Chemistry and Climate,” Ecosystems, Vol. 15, No. 2, 2012, pp. 322-335. doi:10.1007/s10021-011-9512-0
[22] L. T. Vermeire, D. B. Wester, R. B. Mitchell and S. D. Fuhlendorf, “Fire and Grazing Effects on Erosion, Soil Water Content, and Soil Temperature,” Journal of Environmental Quality, Vol. 34, No. 5, 2005, pp. 1559-1565. doi:10.2134/jeq2005.0006
[23] M. Wine, C. B. Zou, J. A. Bradford and S. A. Gunter, “Runoff and Sediment Responses to Grazing Native and Introduced Species on Highly Erodible Southern Great Plains Soil,” Journal of Hydrology, Vol. 450-451, 2012, pp. 336-341. doi:10.1016/j.jhydrol.2012.05.012

  
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