Does multi-storied forest management promote the diversity of bird and bat communities?
2006
Sano, A.(Mie-ken. Science and Technology Promotion Center, Hakusan (Japan). Forestry Research Division)
The diversity of the bird community and the relationship between the frequency that the bats used the forest, and the biomass of nocturnal flying insects in the forest were analyzed in a multi-storied hinoki cypress (Chamaecyparis obtusa) stand and a natural laurel stand. A field survey was carried out in the Ise Shrine forest, Mie Prefecture, central Japan in 2003-2005. There was little difference in the Shannon-Wiener diversity index between the bird communities in the two forest stands throughout the year. The number of secondary hollow-nesting birds was smaller, but birds preferred the bush story abounded in the hinoki stand. The hinoki stand was scarcely used by bats in spite of the abundance of food. Heavy thinning is damaging to hollow-dependent species in the multi-storied hinoki stand. Hollow-bearing trees should be preserved as the nest or roosting site for hollow users to promote the-bird and bat species diversity in coniferous plantations.
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