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Animal Movement Across Scales$
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Lars-Anders Hansson and Susanne Åkesson

Print publication date: 2014

Print ISBN-13: 9780199677184

Published to Oxford Scholarship Online: November 2014

DOI: 10.1093/acprof:oso/9780199677184.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 16 October 2021

Pathogens and hosts on the move

Pathogens and hosts on the move

(p.126) Chapter 8 Pathogens and hosts on the move
Animal Movement Across Scales

Helena Westerdahl

Staffan Bensch

Jan-Åke Nilsson

Emily O´Connor

Ravinder Sehgal

Sylvie Tesson

Dennis Hasselquist

Oxford University Press

This chapter explores the causes and consequences of host/pathogen movements/migration in relation to transmission of infections. All organisms are host to one or more pathogen species. With the movements of hosts come the inevitable co-movements of their pathogens. Although it is well established that pathogens move with migratory butterflies, fish, birds, and mammals, the extent to which moving hosts contribute to the spread of infections is still largely unknown. Host movements also affect the relative risk of contracting infections. An increased pathogen exposure could select for specific adaptations in host immunity which enables them to handle infections at both their breeding and wintering sites. Yet, movement strategies have potentially evolved as a means of avoiding infections, such as in migrants who chose to breed and over-winter at ‘pathogen-free’ sites. Furthermore, both pathogenic and non-pathogenic micro-organisms have developed strategies to take advantage of moving hosts, e.g., for dispersal.

Keywords:   host, parasite, immunity, pathogenic and non-pathogenic microorganisms, transmission of infection

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