1. Akai K (2012) Field guide to weeds in Ikeda Town. The Association of Water and Soil Protection in Ikeda Town, Fukui
2. Alford RA (1999) Ecology: resource use, competition, and predation. In: McDiarmid RW, Altig R (eds) Tadpoles: the biology of anuran larvae. The University of Chicago Press, Chicago, pp 240–278
3. Amilhat E, Lorenzen K (2005) Habitat use, migration pattern and population dynamics of chevron snakehead Channa striata in a rainfed rice farming landscape. J Fish Biol 67:23–34
4. Anastacio PM, Correia AM, Menino JP, da Silva LM (2005) Are rice seedlings affected by changes in water quality caused by crayfish? Ann Limnol Int J Limnol 41:1–6
5. Asakawa S (2005) Material cycling in paddy fields. In: Saigusa M, Kimura M (eds) Introduction to soil science. Buneido-shuppan, Tokyo, pp 74–84