Oecologia

, Volume 125, Issue 1, pp 82–84

A decade since ”diversification of ruminants”: has our knowledge improved?

Authors

  • S. S. Ditchkoff
    • Department of Zoology, Oklahoma State University, Stillwater, OK 74078, USA e-mail: steved@okstate.edu Fax: +1-405-7447824

DOI: 10.1007/PL00008894

Cite this article as:
Ditchkoff, S. Oecologia (2000) 125: 82. doi:10.1007/PL00008894

Abstract 

In his landmark 1989 paper, R.R. Hofmann classified ruminants into three categories based upon digestive anatomy and preferred forages, and proposed that divergence of feeding strategies among ruminants is a result of morphological evolution of the digestive tract. Because of the hypothetical nature of these views and the ingrained beliefs that they challenged, several papers were published that reported tests of Hofmann’s predictions. The consensus among these papers was that Hofmann’s predictions were inadequate. I describe the experimental evidence that has been put forth in opposition to the ruminant diversification hypothesis and contend that we have failed to adequately test Hofmann’s predictions.

Key words Concentrate selectorsIntermediate feedersRoughage eatersRumen bypassRuminant diversification

Copyright information

© Springer-Verlag Berlin Heidelberg 2000