Fitness consequences of body-size-dependent parasitism in a gregarious parasitoid attacking the 7-spot ladybird, Coccinella septempunctata (Coleoptera: Coccinellidae)
作者: Haitian SongLing MengBaoping Li
作者单位: 1School of Plant Protection, Nanjing Agricultural University, No. 1 Weigang Rd, Nanjing, Jiangsu 210095, PR China
刊名: Biological Control, 2017, Vol.113 , pp.73-79
来源数据库: Elsevier Journal
DOI: 10.1016/j.biocontrol.2017.07.006
关键词: Predatory ladybirdsOomyzus scaposusParasitism successDevelopment timeSex ratioBrood sizeOffspring adult sizeHost age
英文摘要: Abstract(#br)Variation in body size of hosts and their parasitoids poses a significant challenge for gregarious parasitoid females to make their decisions to optimally utilize a range of hosts. In the present study, we investigated the combined effect of host size across successive host larval stages and maternal wasp size on fitness-correlated performances of offspring parasitoids, using the larval-pupal gregarious parasitoid Oomyzus scaposus attacking the 7-spot ladybird Coccinella septempunctata . The probability of parasitism success decreased with ladybird body weight at the time of parasitism when small sized wasps made the attack, but maintained a high level across the full range of host weights when large sized wasps made it. Offspring development time to adulthood decreased,...
全文获取路径: Elsevier  (合作)
影响因子:1.917 (2012)

  • 成功 
  • parasitoid 寄生样的
  • parasitism 寄生
  • Coleoptera 鞘翅目
  • gregarious 聚生的
  • adult 成体
  • ratio 
  • success 
  • dependent 从属的