<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Charleston, Michael A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Jungles: a new solution to the host/parasite phylogeny reconciliation problem</style></title><secondary-title><style face="normal" font="default" size="100%">Mathematical biosciences</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Animals; host parasite; Lice Infestations/parasitology/veterinary; Likelihood Functions; Mallophaga; Models</style></keyword><keyword><style  face="normal" font="default" size="100%">Biological; Phylogeny; Rodent Diseases/parasitology; Rodentia/parasitology</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1998</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">149</style></volume><pages><style face="normal" font="default" size="100%">191-223</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The problem of finding least-cost reconstructions of past host/parasite associations, given the phylogenetic histories of a set of host taxa and of their associated parasites, is known to be complex. I provide in this article a new method of implicitly listing all the potentially optimal solutions to the problem, by considering each hypothesised past association individually, in a structure I have termed a Jungle. These structures are demonstrated to enable fast acquisition of globally optimal solutions under general weighting schemes, including minimisation of total number of postulated events and maximization of postulated cospeciation events. A simple example is given, and the pocket gopher/chewing louse system investigated by Hafner and Nadler [Hafner and Nadler, Nature 332 (1988) 258] is re-examined.</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><accession-num><style face="normal" font="default" size="100%">45108</style></accession-num><notes><style face="normal" font="default" size="100%">LR: 20031114; JID: 0103146; ppublish0025-5564Journal</style></notes></record></records></xml>