Department of Entomology, Oregon State University, 97331-2907, Corvallis, Oregon.
J Chem Ecol. 1991 Sep;17(9):1783-99. doi: 10.1007/BF00993728.
Individual families of gypsy moth collected from a single population exhibited different degrees of fitness when fed diets of white alder, a suitable broadleaf host, and Douglas-fir, an unsuitable conifer host. Members of families on diets of Douglas-fir had significantly lower survival, longer larval periods, lower pupal weights, and shorter pupal periods than members of the same families fed alder. Foliar nutritional quality, including nitrogen level and allelochemical composition (terpenes and phenols), was considered the key factor responsible for these differences. Growth parameters differed significantly for families within diet treatments, indicating that the genetic resources of a family did affect performance somewhat. The influence of a family's genetic resources on larval survival was most notable when larvae were under the greatest nutritional stress.
从单一种群中收集的不同家系的舞毒蛾在以白桤木（一种合适的阔叶树种）和花旗松（一种不合适的针叶树种）为食时，其适应性表现出不同程度的差异。以花旗松为食的家系成员的存活率显著降低，幼虫期延长，蛹重和蛹期缩短，而以白桤木为食的家系成员则没有。叶片营养质量，包括氮水平和化感物质组成（萜类和酚类），被认为是造成这些差异的关键因素。不同家系在不同饮食处理下的生长参数存在显著差异，这表明家系的遗传资源确实对表现有一定影响。当幼虫受到最大的营养压力时，家系遗传资源对幼虫存活率的影响最为显著。
