A quantitative biology of three New Zealand alpine grasshopper species

摘要

Quantitative biological data obtained in the course of a capture-recapture study are presented for three New Zealand alpine grasshopper species,Paprides nitidus, Sigaus australis, andBrachaspis nivalis. The data pertain to a mixed-species community under natural grassland conditions and include details of phenologies, longevities, ecdysis, sexual behaviour, oviposition, activity thresholds, and dispersal. Many of the details have necessarily been obtained by the use of a unique coding for each marked individual, and many of the conclusions are drawn from data that were selectively grouped to afford the clearest possible definitions of population biologies within the continually changing community. Nearly all data and conclusions relate to the adult and final two nymphal instars of each species.