Resource asynchrony and landscape homogenization as drivers of virulence evolution: The case of a directly transmitted disease in a social host

dc.contributor.authorKürschner, Tobias
dc.contributor.authorScherer, Cédric
dc.contributor.authorRadchuk, Viktoriia
dc.contributor.authorBlaum, Niels
dc.contributor.authorKramer‐Schadt, Stephanie
dc.date.accessioned2024-04-26T16:07:37Z
dc.date.available2024-04-26T16:07:37Z
dc.date.issued2024-02-20
dc.date.updated2024-04-15T22:39:29Z
dc.description.abstractThroughout the last decades, the emergence of zoonotic diseases and the frequency of disease outbreaks have increased substantially, fuelled by habitat encroachment and vectors overlapping with more hosts due to global change. The virulence of pathogens is one key trait for successful invasion. In order to understand how global change drivers such as habitat homogenization and climate change drive pathogen virulence evolution, we adapted an established individual-based model of host–pathogen dynamics. Our model simulates a population of social hosts affected by a directly transmitted evolving pathogen in a dynamic landscape. Pathogen virulence evolution results in multiple strains in the model that differ in their transmission capability and lethality. We represent the effects of global change by simulating environmental changes both in time (resource asynchrony) and space (homogenization). We found an increase in pathogenic virulence and a shift in strain dominance with increasing landscape homogenization. Our model further indicated that lower virulence is dominant in fragmented landscapes, although pulses of highly virulent strains emerged under resource asynchrony. While all landscape scenarios favoured co-occurrence of low- and high-virulent strains, the high-virulence strains capitalized on the possibility for transmission when host density increased and were likely to become dominant. With asynchrony likely to occur more often due to global change, our model showed that a subsequent evolution towards lower virulence could lead to some diseases becoming endemic in their host populations.en
dc.description.sponsorshipDFG, 263283606, GRK 2118: Integrating Biodiversity Research with Movement Ecology in Dynamic Agricultural Landscapes (BioMove)
dc.identifier.eissn2045-7758
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/21541
dc.identifier.urihttps://doi.org/10.14279/depositonce-20341
dc.language.isoen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.ddc500 Naturwissenschaften und Mathematik::590 Tiere (Zoologie)::590 Tiere (Zoologie)
dc.subject.ddc500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::577 Ökologie
dc.subject.otherdynamic landscapes
dc.subject.otherevolution
dc.subject.otherglobal change
dc.subject.otherhost–pathogen dynamics
dc.subject.othervirulence
dc.titleResource asynchrony and landscape homogenization as drivers of virulence evolution: The case of a directly transmitted disease in a social hosten
dc.typeArticle
dc.type.versionpublishedVersion
dcterms.bibliographicCitation.articlenumbere11065
dcterms.bibliographicCitation.doi10.1002/ece3.11065
dcterms.bibliographicCitation.issue2
dcterms.bibliographicCitation.journaltitleEcology and Evolutionen
dcterms.bibliographicCitation.originalpublishernameWiley
dcterms.bibliographicCitation.originalpublisherplaceNew York, NY
dcterms.bibliographicCitation.pageend
dcterms.bibliographicCitation.pagestart
dcterms.bibliographicCitation.volume14
dcterms.rightsHolder.referenceCreative-Commons-Lizenz
tub.accessrights.dnbfree
tub.affiliationFak. 6 Planen Bauen Umwelt::Inst. Ökologie::FG Planungsbezogene Tierökologie
tub.publisher.universityorinstitutionTechnische Universität Berlin

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