Subalpine koura, Paranephrops planifrons (Decapoda), in Tongariro National Park: zoogeographic implications

R A; Fordham; SD Kelton; H Leersnyder; PL Lo


Koura, Paranephrops^ planifrons, were found up to 1260 m a.s.l. in a subalpine area of Tonga-riro National Park in May and July 1978. Their habitat is described briefly, and possible factors limiting the distribution and abundance of high altitude populations of freshwater crayfish are listed. It is suggested that all mountains may not necessarily form absolute zoogeographic barriers to koura; the kind of mountain and the ecological milieu may be more important.

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