Fine-scale patterns and drivers of ploidy state in lentic and lotic macrophyte assemblages across the world
Abstract
To investigate whether patterns of ploidy state variation known to occur in macrophytes at broad global scales can be detected at finer site scale, we examined macrophyte assemblages present in 1239 individual inland lentic and lotic waterbodies sampled from 2000 onwards. The sites include lakes and reservoirs, rivers and streams, slow-flowing or static water bodies associated with rivers (such as oxbows), man-made channels, and temporary or ephemeral lentic waterbodies in 22 countries worldwide. The latitude range for these sites was 10.58–68.40° N and from 0.01 to 54.88° S, covering climatic conditions ranging from tropical to temperate/Arctic. We examined the influence of geospatial variables, current or historic climate variables, and additional local water physical and chemical variables measured for each site, as potential predictors of the incidence of ploidy state (diploidy, polyploidy, and mixed-cytotype) in the macrophyte species assemblage. At fine scales (individual sites), we observed the same latitudinal and climatic patterns influencing all macrophyte ploidy states, especially diploid species, compared to findings at a broad spatial resolution of 10° × 10° latitude-longitude. Ploidy state of macrophyte assemblages slightly, but significantly, differs between lentic and lotic environments. Along with geospatial and climate variables, local physical and chemical variables also helped predict the occurrence of polyploid and mixed-ploidy species. Our results support previous findings on ploidy state distribution and drivers at broader scales but also unravel new information on key drivers for the distribution of polyploid and mixed-ploidy species, relevant to understanding macrophyte adaptation mechanisms and evolutionary processes worldwide.
Details
- Organisationseinheit(en)
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Abteilung Geobotanik
- Externe Organisation(en)
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Universidad Autonoma Queretaro
University of Glasgow
Aarhus University
Universidad de Leon
University of Oulu
Universidad de Alcala
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
Universidade Estadual de Maringa
Hunan Agricultural University
University of Parma
Università di Bologna
Centro de Investigación Esquel de Montaña y Estepa Patagónica (CIEMEP)
Chundu Armed Forces Public Scool
Colorado State University
University of Basrah
National Institute of Water and Atmospheric Research, New Zealand
University of Novi Sad
Parque Estadual do Rio Doce (PERD)
Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB)
Universidade Federal do Rio de Janeiro
Samford University
Minnesota Department of Natural Resources (DNR)
Minnesota State University
Coventry University
University of Stirling
Universidade Federal do Ceara
Instituto de Desenvolvimento Sustentável Mamirauá
University of Ljubljana
Universidade Federal do Rio Grande do Sul
Finnish Environment Institute (SYKE)
- Typ
- Artikel
- Journal
- Aquatic botany
- Band
- 202
- ISSN
- 0304-3770
- Publikationsdatum
- 01.2026
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Aquatische Wissenschaften, Pflanzenkunde
- Ziele für nachhaltige Entwicklung
- SDG 15 - Lebensraum Land
- Elektronische Version(en)
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https://doi.org/10.1016/j.aquabot.2025.103943 (Zugang:
Geschlossen
)
