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Coevolution of Life on HostsIntegrating Ecology and History$
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Dale H. Clayton, Sarah E. Bush, and Kevin P. Johnson

Print publication date: 2015

Print ISBN-13: 9780226302133

Published to Chicago Scholarship Online: May 2016

DOI: 10.7208/chicago/9780226302300.001.0001

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Cophylogenetic dynamics

Cophylogenetic dynamics

(p.155) 9 Cophylogenetic dynamics
Coevolution of Life on Hosts

Dale H. Clayton

Sarah E. Bush

Kevin P. Johnson

University of Chicago Press

Interacting groups with patterns of codiversification are powerful arenas for testing the influence of selection, dispersal, and other processes on lineage diversification. When reproduction in one group is linked to reproduction in another group, codiversification may occur. For example, parasite dispersal is often linked to host dispersal, with barriers to host movement also influencing the movement of their parasites. This linkage of host and parasite dispersal is particularly common in permanent parasites, such as lice, which complete all stages of their life cycle on the body of the host. If barriers to movement contribute to lineage diversification in both host and parasite, then they will codiversify. If codiversification is simultaneous, then the host and parasite may undergo cospeciation. In this chapter we review the five main macroevolutionary events that govern patterns of cophylogenetic history. These processes are cospeciation, host switching, duplication, sorting events, and parasite cohesion. Each of these processes can influence copylogenetic patterns in different ways.

Keywords:   cophylogenetics, cospeciation, host switching, congruence, duplication, cohesion, sorting events, macroevolution

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