Roosting birds kill pine trees but no toxic effect to soil under roost

References

• Bray , R. H. and Kurtz , L. T. 1945 . Determination of total, organic, and available forms of phosphorus in soils . Soil Sci. , 59 : 39 – 45 .
   Web of Science ®Google Scholar
• Bremner , J. M. 1960 . Determination of nitrogen in soil by the Kjeldahl method . J. Agr. Sci. , 55 : 11 – 33 .
   Google Scholar
• Gilmore , A. R. and Boggess , W. R. 1963 . Effects of past agricltural practices on the survival and growth of planted trees . Soil Sci. Soc. Am. Proc. , 27 : 98 – 102 .
   Google Scholar
• Gilmore , A. R. 1972 . Liming retards height growth of young shortleaf pine . Soil Sci. , 113 : 448 – 452 .
   Web of Science ®Google Scholar
• Gilmore , A. R. 1976 . Relationship between soil, foliage, stemwood, and growth of planted cottonwoods in southern Illinois . Soil Sci. , 121 : 301 – 306 .
   Web of Science ®Google Scholar
• Gilmore , A. R. 1983 . The probable cause of death of shortleaf and loblolly pines at the Enfield Experimental Field , Urbana , IL : Department of Forestry, University of Illinois . File report,
   Google Scholar
• Murphy , J. and Riley , J. P. 1962 . A modified single solution method for the determination of phosphate in natural waters . Anal Chem. Acta. , 27 : 31 – 36 .
   Web of Science ®Google Scholar
• Stewart , G. R. 1933 . Forest plantations injured by roosting birds . J. For. , 31 : 421 – 23 .
   Google Scholar
• Young , V. A. 1936 . Edaphic and vegetational changes associated with injury of a white pine plantation by roosting birds . J. For. , 34 : 512 – 523 .
   Google Scholar
• Young , R. A. and Gilmore , A. R. 1976 . Effects of various camping intensities on soil properties in Illinois campgrounds . Soil Sci. Soc. Am. Jour. , 40 : 908 – 911 .
   Web of Science ®Google Scholar