Effects of Density on the Survival and Development of Nymphs in the Pine Spittlebug, Aphrophora flavipes (Homoptera : Cercopidae) Experiments in an Outdoor Cage

スポンサーリンク

概要

• 論文の詳細を見る

• Effects of density on the survival and development of the pine spittlebug, Aphrophora flavipes were tested by rearing individuals on 2- or 3-year-old potted Japanese red pine seedlings in an outdoor cage from 1st or 2nd instar to adult emergence and varying the initial number of individuals. The rate of survivorship was highest at the medium density (9 or 12 individuals/tree) and decreased with increasing density. Also when the density was very low (3 individuals/tree), the survival rate was relatively low, indicating that some degree of aggregation has a beneficial effect. The developmental rate and body size of emerged adults were inversely correlated with the nymphal density. Branching of the 3-year-old host tree complicated the density effect by allowing the movements of nymphs from one terminal to another.

• 日本応用動物昆虫学会の論文
• 1990-08-25

著者

• Matsumoto Kazuma

  Forest Zoology Faculty Of Agriculture University Of Tokyo:(present Address)tama Forest Science Garde

関連論文

• Seasonal Patterns in the Adult Population of Pine Spittlebug, Aphrophora flavipes(Homoptera : Cercopidae), with Special Attention to the Dispersal during the Reproductive Period
• Effects of Density on the Survival and Development of Nymphs in the Pine Spittlebug, Aphrophora flavipes (Homoptera : Cercopidae) Experiments in an Outdoor Cage
• Monitoring of tube-nesting bees and wasps with bamboo tube nest traps of different types in two types of forests in temperate Japan

スポンサーリンク