Key points are not available for this paper at this time.
S. L. Pimm, R. L. Kitching, The Determinants of Food Chain Lengths, Oikos, Vol. 50, No. 3, Trophic Exploitation, Community Structure and Dynamics of Cyclic and Non-Cyclic Populations. Proceedings of a Symposium Held 25-27 May, 1985, at Hällnäs, Sweden (Nov., 1987), pp. 302-307
Pimm et al. (Sun,) studied this question.