Gentry J B, Whitford Walter G
Savannah River Ecology Laboratory, Drawer E, 29801, Aiken, SC.
Oecologia. 1982 Jan;54(1):63-67. doi: 10.1007/BF00541109.
We estimated the densities of termites in dead wood using a point-quarter technique in four habitats: pine plantations subject to control burning and unburned, lowland hardwood forest, and turkey oak woodland. The burned pine plantation had the highest estimated termite density, 13×10·ha unburned pine plantation and lowland hardwood had estimated densities of 2.6×10·ha and 2.2×10·ha, respectively, and the turkey oak woodland had an estimated densities of 61.9×10·ha. There were varying percentages of Reticulitermes flavipes and R. virginicus in the various habitats. There was nearly linear increase in percentage of pine blocks attacked by termites in the pine and hardwood forests and by the end of the growing season, nearly all had been channelized by termites. In the turkey oak habitat 70% of the pine blocks were channelized. Termites removed between 3% and 12% of the original mass of over one-fourth of the pine blocks during the growing season.Wood litter in fall was highest in the lowland hardwood forest: 2869 kg·ha·yr. Wood litter input in the long leaf pine plantation, 792 kg·ha·yr was nearly equivalent to the three year average wood litter in fall in a Danish oak forest.
我们采用点四分法，在四种栖息地中估算了枯木中白蚁的密度，这四种栖息地分别是：进行过控制性焚烧的松树种植园、未焚烧的松树种植园、低地硬木森林和火鸡栎林地。经估算，被焚烧过的松树种植园白蚁密度最高，为13×10⁴/公顷；未焚烧的松树种植园和低地硬木森林的估算密度分别为2.6×10⁴/公顷和2.2×10⁴/公顷；火鸡栎林地的估算密度为61.9×10⁴/公顷。不同栖息地中黄胸散白蚁和弗吉尼亚散白蚁的比例各不相同。在松树和硬木森林中，遭受白蚁侵害的松树块百分比几乎呈线性增长，到生长季节结束时，几乎所有松树块都被白蚁蛀空。在火鸡栎栖息地，70%的松树块被蛀空。在生长季节，超过四分之一的松树块中，白蚁消耗了其原有质量的3%至12%。秋季的枯落物量在低地硬木森林中最高，为2869千克/公顷·年。长叶松种植园的枯落物输入量为792千克/公顷·年，几乎相当于丹麦橡树林秋季三年平均枯落物量。
