A mark-recapture study of coexisting Zygopteran populations
An analysis is presented of the coexistence of 8 springs spp. in an area in Eastern Flanders, Belgium. By counting exuviae an by the mark recapture method, the behavior of different spp. in space and time was followed the data include estimates of the translocation within the area and estimates of population size and servival rate using the method of jolly and seber and new regression method. -Between spp, (of different genera), differences in spatial and temporal performance were noted which resulted in a reduction of interaction, whether or not truly competitive. However, between the coexisting sibling spp,. Coenogrion puella and C. pulchellum, no major differences in utilization of the environment could be found. There are indications that qq of C. puella we were driven out of their favored areas, but in spite of this they continued to oviposit at the peak density of C.pulchellum. This observation lead to reconsideration of the competitive exclusion principle.
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Publication year
2022
