Population dynamics ofLuehdorfia japonica Leech (Lepidoptera: Papilionidae)
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An adult population of a papilionid butterfly,Luehdorfia japonica Leech, was studied by marking, release and recapture procedures in a hilly region in the suburbs of Kanazawa City, Japan.
Age of butterflies was estimated from the wing wear conditions, rated as winage categories 0 to 6.
Jolly (1965) andSeber's (1973) method was applied to the marking-recapture results for estimating the population parameters (sampling ratio, population size and survival rate).
Sampling ratio of males was consistently higher (around 50%) than that of females.
Newly emerged females were especially inactive, so that few of them were captured. From day 6.5 to day 10.0 they began to oviposit and became more active and more catchable.
An approximate sex ratio of 1∶1 was confirmed from the specimens collected in the field and by rearing experiments.
Daily survival rate was about 0.75–0.80 and mean longevity was about 4 days for both sexes. The maximum longevity observed was 17 days, for males and 21 days for females.
Dispersal by both sexes of the butterfly was more than 1 km.
KeywordsSampling Ratio Daily Survival Rate Maximum Longevity Capture Point Larval Food Plant
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