Functional trait responses of invasive Ludwigia species to contrasting hydrological conditions DOI
Rebecca E. Drenovsky,

Rebecca Reicholf,

Caryn J. Futrell

et al.

American Journal of Botany, Journal Year: 2025, Volume and Issue: unknown

Published: May 14, 2025

Abstract Premise Hydrological regime influences wetland plant species distribution and performance. Global warming extreme weather events are magnifying flooding patterns, understanding how invasive taxa respond across life stages (establishment vs. established phase) is important for predicting managing their colonization spread. Our objective was to measure flood trait responses at contrasting in closely related congeners ( Ludwigia peploides , diploid; L. hexapetala decaploid; Onagraceae) differing invasiveness the field. Methods In field, we assessed phenological seasonal hydrological changes, mesocosms, stress of establishing shoot fragments under deep‐flooded, shallow‐flooded, gradual drawdown treatments. Results Counter expectations, expressed more tolerance traits mesocosms than . For example, had greater total leaf area aerenchyma production supporting its growth flooding, whereas escape (higher elongation rates, trend longer internode length). Although some associated with drought tolerance, these trends were not significant. longer‐established plants a reversed pattern versus traits. rapidly shifted sexual reproduction as soils began dry, hexaetala flowered regardless soil moisture availability. Conclusions These patterns demonstrate that have strategies counter physiological induced by emphasize importance stage response environmental variation.

Language: Английский

Nuevas aportaciones florísticas para Extremadura (España) DOI Creative Commons
Francisco J. Valtueña, Josefa López, Tomás Rodríguez‐Riaño

et al.

Acta Botanica Malacitana, Journal Year: 2025, Volume and Issue: 50, P. 20890 - 20890

Published: Feb. 13, 2025

La revisión de material angiospermas conservado en el herbario UNEX y recolecciones recientes Extremadura han revelado 13 novedades florísticas. Concretamente, respecto taxones autóctonos, tres son nuevos para la región (Gagea bohemica, Rumex spinosus, Thrincia maroccana), uno provincia Cáceres (Anthyllis vulneraria subsp. gandogeri) Badajoz (Rorippa sylvestris, Oenanthe pimpinelloides, Torilis arvensis recta). También se resaltan seis especies alóctonas, las cuales nuevas (Chasmanthe floribunda, Oxalis bowiei, Ludwigia grandiflora), una (Cercis siliquastrum) dos (Physalis isocarpa, Solanum bonariense).

Citations

0
Functional trait responses of invasive Ludwigia species to contrasting hydrological conditions DOI
Rebecca E. Drenovsky,

Rebecca Reicholf,

Caryn J. Futrell

et al.

American Journal of Botany, Journal Year: 2025, Volume and Issue: unknown

Published: May 14, 2025

Abstract Premise Hydrological regime influences wetland plant species distribution and performance. Global warming extreme weather events are magnifying flooding patterns, understanding how invasive taxa respond across life stages (establishment vs. established phase) is important for predicting managing their colonization spread. Our objective was to measure flood trait responses at contrasting in closely related congeners ( Ludwigia peploides , diploid; L. hexapetala decaploid; Onagraceae) differing invasiveness the field. Methods In field, we assessed phenological seasonal hydrological changes, mesocosms, stress of establishing shoot fragments under deep‐flooded, shallow‐flooded, gradual drawdown treatments. Results Counter expectations, expressed more tolerance traits mesocosms than . For example, had greater total leaf area aerenchyma production supporting its growth flooding, whereas escape (higher elongation rates, trend longer internode length). Although some associated with drought tolerance, these trends were not significant. longer‐established plants a reversed pattern versus traits. rapidly shifted sexual reproduction as soils began dry, hexaetala flowered regardless soil moisture availability. Conclusions These patterns demonstrate that have strategies counter physiological induced by emphasize importance stage response environmental variation.

Language: Английский

Citations

0