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4. Leading trait dimensions in flood-tolerant plants

Author

Pan, Yingji, primary, Cieraad, Ellen, additional, Armstrong, Jean, additional, Armstrong, William, additional, Clarkson, Beverley R, additional, Pedersen, Ole, additional, Visser, Eric J W, additional, Voesenek, Laurentius A C J, additional, and van Bodegom, Peter M, additional

Published
2022
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6. Drivers of plant traits that allow survival in wetlands

Author

Pan, Yingji, Cieraad, Ellen, Clarkson, Beverley R., Colmer, Timothy D., Pedersen, Ole, Visser, Eric J. W., Voesenek, Laurentius A. C. J., Bodegom, Peter M., Alahuhta, Janne, Plant Ecophysiology, Sub Plant Ecophysiology, Plant Ecophysiology, and Sub Plant Ecophysiology

Subjects
0106 biological sciences, Adaptive strategies, Biome, Wetland, Context (language use), Biology, 010603 evolutionary biology, 01 natural sciences, bioclimatic variables, Precipitation, adaptive strategy, Ecology, Evolution, Behavior and Systematics, Driving factors, geography, root porosity, underwater photosynthesic rate, geography.geographical_feature_category, Ecology, wetland plant ecophysiological adaptive trate, Plant Ecology, wetland plant functional traits, food and beverages, Aquatic Ecology, Anoxic waters, root/shoot ratio, Habitat, driving factors, 010606 plant biology & botany
Abstract

Plants have developed a suite of traits to survive the anaerobic and anoxic soil conditions in wetlands. Previous studies on wetland plant adaptive traits have focused mainly on physiological aspects under experimental conditions, or compared the trait expression of the local species pool. Thus, a comprehensive analysis of potential factors driving wetland plant adaptive traits under natural environmental conditions is still missing. In this study, we analysed three important wetland adaptive traits, that is root porosity, root/shoot ratio and underwater photosynthetic rate, to explore driving factors using a newly compiled dataset of wetland plants. Based on 21 studies at 38 sites across different biomes, we found that root porosity was affected by an interaction of temperature and hydrological regime; root:shoot ratio was affected by temperature, precipitation and habitat type; and underwater photosynthetic rate was affected by precipitation and life‐form. This suggests that a variety of driving mechanisms affect the expression of different adaptive traits. The quantitative relationships we observed between the adaptive traits and their driving factors will be a useful reference for future global methane and denitrification modelling studies. Our results also stress that besides the traditionally emphasized hydrological driving factors, other factors at several spatial scales should also be taken into consideration in the context of future functional wetland ecology. A free Plain Language Summary can be found within the Supporting Information of this article.

Published
2020

9. Drivers of a global spectrum of wetland traits: climate, habitats and plant adaptation strategy.

Author

Pan, Yingji, Cieraad, Ellen, and van Bodegom, Peter

Subjects
*PLANT habitats, *PLANT adaptation, *WETLAND ecology, *WETLANDS, *WETLAND plants, *NITROGEN cycle, *CARBON cycle, *CLIMATOLOGY
Abstract

Wetland plants live in habitats which are distinguished from terrestrial ecosystems by their unique characteristics including anoxic conditions, frequent flooding and submergence. To understand how/why they deviate from terrestrial plants, a comprehensive quantitative knowledge of trait selection in wetlands is needed. We built a global database of wetland plant functional traits which includes >8000 observations of >1200 species from >200 references (containing both published and unpublished sources), encompassing leaf economics traits, eco-physiological adaptation traits and also associated environmental data from a variety of wetland habitats around the world. Our database is unique in aiming only at plants living in wetland habitats, and it has not been included in the TRY database yet.Based on our database, we analysed the principal driving factors for wetland adaptation traits. We showed that different drivers affect adaptation traits differently. This suggests that seemingly similar wetland stresses (anoxia, flooding) across a variety of wetland habitats still select for a distinct set of wetland adaptation traits. We also noticed that some of the wetland adaptation traits were statistically decoupled from leaf economics spectrum (LES) traits, which suggests that wetland adaptation traits may not be constrained by the habitat resources/nutrient limitation. This allows wetland plants to survive in complex wetland ecosystems under varied hydrological regimes and fertility status. We also found trade-offs between some of the adaptation traits and LES traits, which suggests that plants need to optimize the allocation of resources between survival and growth for certain environmental stresses. The fact that no clear leading dimension was detected for wetland adaption traits emphasizes the complex character of wetland ecosystems.Our database will provide the backbone for quantitatively understanding the wetland plant species' adaptation strategy, distribution and their link to ecosystem functioning such as the carbon and nitrogen cycles for future studies at a global scale. [ABSTRACT FROM AUTHOR]

Published
2019

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