02242nas a2200157   4500008004100000245010800041210006900149300001200218490000800230520164700238653002201885100001901907700001701926700002001943856012101963       2002                        eng d00aAnnual fire, mowing and fertilization effects on two cicadas (Homoptera:Cicadidae) in tallgrass prairie0 aAnnual fire mowing and fertilization effects on two cicadas Homo  a90 -1010 v1483 aIn tallgrass prairie, cicadas emerge annually, are abundant and their emergence can be an important flux of energy and nutrients. However, factors influencing the distribution and abundance of these cicadas are virtually unknown. We examined cicada emergence in plots from a long-term (13 y) experimental manipulation involving common tallgrass prairie management practices. The plots were arranged in a factorial experimental design, incorporating annual burning, mowing and fertilization (10 g N m−2 and 1 g P m−2). One cicada species, Cicadetta calliope, responded positively to fire, but negatively to mowing, and was most abundant in plots that were burned, unmowed and fertilized. Increased density of C. calliope in this treatment combination is related, in part, to increased availability of oviposition sites aboveground. Furthermore, C. calliope females from fertilized plots were significantly larger in body size relative to females from unfertilized prairie. Another cicada species, Tibicen aurifera, emerged only from unburned plots. The mechanism underlying this negative response to fire is unclear, but may be related to the presence of standing dead vegetation or improved quality (i.e., N content) of belowground plant tissue in unburned plots. In contrast to C. calliope, the density of T. aurifera was not affected by mowing or fertilization. However, like C. calliope, the body size of T. aurifera females was significantly greater in fertilized plots. Cicada emergence resulted in N flux ranging from 0.05–0.16 g N m−2 in unburned plots, but N flux (as cicada biomass) from annually burned plots was negligible.10atallgrass prairie1 aCallaham, M.A.1 aWhiles, M.R.1 aBlair, John, M.  uhttp://knz.lternet.edu/content/annual-fire-mowing-and-fertilization-effects-two-cicadas-homopteracicadidae-tallgrass