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Migration Patterns of Epiphyllous Bryophyte Metapopulations in Amazonian Fragmented Landscape Inferred From Census and Genomic Data

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dc.contributor.authorAdriel M. Sierra
dc.contributor.authorCharles E. Zartman
dc.contributor.authorJuan Carlos Villarreal A.
dc.contributor.authorAlonso García, Marta
dc.contributor.departmentBiología Vegetal
dc.date.accessioned2025-12-26T08:34:45Z
dc.date.available2025-12-26T08:34:45Z
dc.date.copyright© 2025 The Authors
dc.date.issued2025-08-25
dc.description.abstractHabitat fragmentation affects metapopulation dynamics by reducing patch (discrete area occupied by a local population) size and connectivity, but its long-term genetic consequences are confounded by species-specific traits and limitations of sequencing techniques. Studies of terrestrial plants with relatively short generation times, combined with high-throughput sequencing, provide valuable insights into the demographic and genetic effects of land-use change. We integrate long-term censuses and genotyping data from epiphyllous bryophyte metapopulations in experimentally fragmented Amazonian forests. We focused on two bryophyte species with contrasting mating systems across 11 populations in small (1-and 10-ha) and large (100-ha and continuous) habitats. We aim to assess how long-term reductions in colony numbers in small fragments affect population genetic diversity and differentiation compared to larger habitats. We also explore how species' mating systems influence migration patterns across forest sites, with bisexual species expected to exhibit a higher likelihood of sexual reproduction and spore output than their unisexual counterparts. Our results reveal contrasting patterns of genetic structure between the two species, with no consistent effects of forest fragmentation detected across the landscape. The bisexual species showed notably lower genetic diversity and slightly higher differentiation in small fragments, suggesting a non-equilibrium metapopulation driven by limited migration. In contrast, the unisexual species exhibited minimal genetic impact from fragmentation, maintaining symmetrical migration among fragments regardless of size, indicative of patchy metapopulation dynamics. This study highlights how contrasting mating systems in epiphyllous bryophytes influence migration patterns and underscores the species-specific responses to habitat fragmentation.
dc.formatapplication/pdf
dc.format.extent15
dc.identifier.citationBiotropica, 2025; 57:e70088
dc.identifier.doihttps://doi.org/10.1111/btp.70088
dc.identifier.eissn1744-7429
dc.identifier.issn0006-3606
dc.identifier.urihttp://hdl.handle.net/10201/182570
dc.languageeng
dc.publisherWiley
dc.relationThis work was supported by CRNSG-RGPIN (05967-2016), Bequest grant (2018) from the British Bryological Society, Scholarship Emerging Leaders of the America Program (ELAP), Canadian Foundation for Innovation (36781, 39135), Fundación Séneca (20369/PD/17), Sentinelle Nord, Université Laval, Canada Research Chairs (950-232698), Program Thomas-Lovejoy Research Fellowship, NSERC CREATE program in Biodiversity, Ecosystem Services and Sustainability (BESS).
dc.relation.publisherversionhttps://onlinelibrary.wiley.com/doi/10.1111/btp.70088
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectAsexual reproduction
dc.subjectConservation genetics
dc.subjectGenetic drift
dc.subjectHabitat degradation
dc.subjectMating system
dc.subjectAmazon Forest
dc.subject.odsObjetivo 15: Bosques, desertificación y diversidad biológica
dc.titleMigration Patterns of Epiphyllous Bryophyte Metapopulations in Amazonian Fragmented Landscape Inferred From Census and Genomic Data
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublicationes
relation.isAuthorOfPublicationb87695f3-6eea-41fa-9863-958f9b63e2b2
relation.isAuthorOfPublication.latestForDiscoveryb87695f3-6eea-41fa-9863-958f9b63e2b2
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