Details of this species in Japan
Source: Hoddle 2004
Species Notes for this Location:
Management Notes for this Location:
In 1958 the predatory rosy wolfsnail (Euglandina rosea) was introduced into Japan to control A. fulica. Non-target impacts included the consumption of native snails (Hoddle 2004).
Reduction in native biodiversity: More than 100 species of land molluscs have been recorded on the islands, of which 94% are endemic (Tomiyama & Kurozumi, 1992, Tomiyama 1994, in Ohbayashi et al. 2007). However, about 40% of the endemic species are already extinct (Kurozumi 1988, Tomiyama & Kurozumi 1992, in Ohbayashi et al. 2007). The following may be possible reasons for this decline:
- Introduction of exotic snails such as A. fulica (Kurozumi 1988, Tomiyama 2002a, in Ohbayashi et al. 2007);
- Introduction of the predatory snail E. rosea for the control of A. fulica in 1965 in Chichijima Island (Takeuchi et al. 1991, in Ohbayashi et al. 2007);
- Predation by predatory flatworms distributed before P. manokwari invasion (Kawakatsu et al. 1999; Okochi et al. 2004, in Ohbayashi et al. 2007);
- Invasion of the alien predatory flatworm P. manokwari in Chichijima Island in the 1990’s (Kawakatsu et al. 1999, Tomiyama 2002a, Ohbayashi et al.
2005, in Ohbayashi et al. 2007);
- Predation by alien rats (Tomiyama 2002a, in Ohbayashi et al. 2007); and
- Forest destruction (Tomiyama 2002a, in Ohbayashi et al. 2007).
Last Modified: 9/03/2010 4:28:22 p.m.