Article 4
How to measure ecological host specificity
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K. Rohde1*, P. P. Rohde2
1Zoology, University of New England, Armidale, NSW 2351, Australia
2$Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH, U.K.
*Corresponding author:
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Abstract. – Rohde’s original host specificity index and the modified index correcting for number of host species are discussed, using some arbitrary examples. The indices can be applied to address ecological questions involving parasites, herbivores, symbionts and commensals, where phylogenetic relationships of hosts are irrelevant.