The ecological role of caudal lamellae loss in the larval damselfly, Ischnura posita (Hagen) (Odonata: Zygoptera)

@article{Robinson1991TheER,
  title={The ecological role of caudal lamellae loss in the larval damselfly, Ischnura posita (Hagen) (Odonata: Zygoptera)},
  author={James V. Robinson and Lawrence R. Shaffer and Douglas D. Hagemier and Neal J. Smatresk},
  journal={Oecologia},
  year={1991},
  volume={87},
  pages={1-7}
}
Damselfly larvae may autotomize and regenerate any of their 3 caudal lamellae. At least one missing or regenerating lamella was evident in 50.1% of field collected Ischnura posita larvae. Lamellae loss during molting is very infrequent (1 out of 117 recorded molts). Laboratory trials indicate that conspecifics remove lamellae and that this process is density dependent. The percentage of larvae losing lamellae during 24 h trials ranged from 73.5 at the highest density tested to 17.3 at the… CONTINUE READING
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