Oviposition habitat selection of the endemic butterfly Luehdorfia japonica in central Japan
2007
Ozeki, M.(Nagano-ken. Nature Conservation Research Inst. (Japan)) | Suka, T. | Hamada, T. | Kishimoto, R.
Luehdorfia japonica (Papilionidae), an endemic butterfly to Honshu, Japan, oviposits on leaves of Asarum (Aristolochiaceae) mainly in deciduous forest floor, and is threatened due to habitat change through vegetation succession currently. We investigated oviposition habitat selection of Luehdorfia japonica in a deciduous forest of Nagano prefecture, proceeding with weeding and brushing experiment, to assess the effect of woods floor management on the species habitat conservation. We developed logistic regression model to estimate the egg-1aying probability based on data from survey in 2005 and 2006. Asarum fauriei density, distance from forest edge, and sky openness or shrub density were selected as explanatory variables to predict whether oviposition occurs or not. This model suggests that traditional forest use and the woods floor management had contributed to the maintenance of a suitable environment for the egg laying of Luehdorfia japonica.
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