Optimum water depth ranges of dominant submersed macrophytes in a natural freshwater lake

Ye, Bibi; Chu, Zhaosheng; Wu, Aiping; Hou, Zhuang; Wang, Shengrui

doi:10.1371/journal.pone.0193176

Cited by 28 publications

(18 citation statements)

References 32 publications

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“…The annual precipitation, sunshine duration and frost free period are 1024 mm, 2345 hours and 228 days, respectively. Eight common native submerged species in Lake Erhai were selected in this experiment (Ye et al 2018). They are Ceratophyllum demersum, Myriophyllum spicatum, Potamogeton maackianus, Stuckenia pectinata, Hydrilla verticillata, Vallisneria natans, Potamogeton nodosus and Potamogeton lucens.…”

Section: Dpr Experimentsmentioning

confidence: 99%

The effects of biodiversity gradient on plant mass and metabolism of individual submerged macrophytes

Zeng

Bai

et al. 2021

Ecol Process

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Background The effects of biodiversity on community function and services are frequently studied in the history of ecology, while the response of individual species to biodiversity remains great elusive. In this study, we determined the biodiversity effects on community productivity as well as species level plant mass and carbon (C) and nitrogen (N) metabolism of eight submerged plants. These macrophytes in Lake Erhai were selected and planted in a water depth of one meter along a diversity gradient of 1, 2, 4 or 8 species. Then, the community productivity or species level plant mass, soluble protein, free amino acid and soluble carbohydrate were correlated to species richness to determine the biodiversity effects on community and single species. Results The results showed that the community level biomass was positively correlated to plant species richness although the species level plant mass of individual species responded differently to the overall plant species richness. Namely, only one plant mass positively correlated to species richness and the others decreased or showed no significant correlation with the increase of species richness. The soluble proteins of most macrophytes were positively correlated to species richness; however, both the free amino acid and soluble carbohydrate of the plants were negatively or not significantly correlated to species richness. Conclusions These results indicated that the selection effects might dominate in our aquatic communities and the negative impacts of biodiversity on C and N metabolism of the macrophytes increased with the increase of species richness, which might result from the strong competition among the studied species. The biodiversity effects on the plant mass, and C and N metabolism of individual submerged species were first reported in this study, while more such field and control experiments deserve further research.

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Section: Dpr Experimentsmentioning

confidence: 99%

The effects of biodiversity gradient on plant mass and metabolism of individual submerged macrophytes

Zeng

Bai

et al. 2021

Ecol Process

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“…Aquatic plants often occupy habitats characterized by strong environmental gradients, providing an excellent opportunity for examining plasticity in sexual dimorphism. Water depth is a major environmental factor influencing the distribution, growth and reproduction of submerged macrophytes, which are greatly sensitive to water level fluctuation (Chambers and Kaiff, 1985; Fu et al, 2014; Ye et al, 2018). An increase in water depth reduces the light penetration to the lake bottom, especially in eutrophic water (Zhang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Plasticity in Sexual Dimorphism Enhances Adaptation of Dioecious Vallisneria natans Plants to Water Depth Change

Zhou

Song

2019

Front. Plant Sci.

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Sexual dimorphism in vegetative and reproductive traits is associated with contrasting strategies of males and females for response to varied environmental conditions, causing sex-specific reproduction success and consequently long-distance dispersal and colonization. Aquatic plants usually exhibit rich phenotypic plasticity and great diversity in reproductive systems, but the influence of aquatic conditions on the plasticity of sexual dimorphism has received less attention. Using a common garden experiment with dioecious submerged plant Vallisneria natans grown at various water depths simulating different light availability, we measured variations in 20 traits for females and 19 traits for males (total = 540 plants from 30 seed families) including morphology, reproductive traits and photosynthesis. We investigated sex-specific plastic responses and variation of sexual dimorphism in response to water depth change. Females displayed much greater leaf length, vegetative biomass and resource allocation to reproduction than males at all depths, whereas spathe number and gamete production per spathe displayed reverse pattern. Besides most traits in each sex (16 in female and 12 in male) showing striking phenotypic plasticity, the degree of sexual dimorphism increased significantly for total biomass and reproductive investment, but decreased for leaf length, spathe number and flowering ramet percentage in low light and deep water. Females varied more than males in leaf length, total biomass, reproductive investment, length and biomass of reproductive organs and rate of photosynthesis in response to decreased underwater light availability, suggesting that female has greater plasticity than male. These findings illustrated considerable plasticity in the degree of sexual dimorphism in a variety of vegetative and reproductive traits across different environments driven by the contrasting reproductive functions of the sexes in relation to pollen and seed dispersal. Females of V. natans responded more plastically than males to low light conditions resulted from water depth variation in either aboveground vegetative growth or reproduction. This study provides novel insight into adaptive strategies of submerged dioecious macrophytes to survive and increase fitness in freshwater habitats.

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“…The average depth, which was also related to the areal extent of steeper-slope, showed a negative relationship with the spatial extent of macrophyte cover in FWBs [13]. Other studies also have demonstrated that depth was the main factor that controlled macrophyte distribution in lakes [29,61,62]. Drainage index, associated with urban land use had positive effects, implying that OM accumulation was also accelerated by external catchment activities.…”

Section: Discussionmentioning

confidence: 84%

Morphometry-Driven Divergence in Decadal Changes of Sediment Property in Floodplain Water Bodies

Pongsivapai

Negishi

Izumi

et al. 2021

Water

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Sediments are potentially the internal source that supply nutrients to water in lentic to semi-lentic ecosystems. The understanding of factors that cause temporal changes in sediment properties is critical for the internal source management. This study investigated the spatial variations and temporal changes in sediment properties in relation to their controlling factors in water bodies of the Ishikari River, Northern Japan. Sediment data in 29 water bodies were measured twice (around 2005 and 2019) to study the temporal changes in sediment properties, and were compared using Generalized Linear Mixed Models (GLMMs). The controlling factors of sediment properties including catchment and morphometry were examined by partial least square (PLS) regression. Our results showed that the temporal change in sediment properties over decades was largely driven by morphometry, while land use in the catchment played a relatively minor role in those changes. The rate of change in organic matter (OM) differed among water bodies depending on their morphometry. The small and shallow water bodies provided suitable habitat for macrophytes that led to OM deposits, resulting to an increase in OM and OM to total nitrogen (TN) ratio over time. The consequences of these changes are important for internal source management and biodiversity conservation.

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Optimum water depth ranges of dominant submersed macrophytes in a natural freshwater lake

Cited by 28 publications

References 32 publications

The effects of biodiversity gradient on plant mass and metabolism of individual submerged macrophytes

The effects of biodiversity gradient on plant mass and metabolism of individual submerged macrophytes

Plasticity in Sexual Dimorphism Enhances Adaptation of Dioecious Vallisneria natans Plants to Water Depth Change

Morphometry-Driven Divergence in Decadal Changes of Sediment Property in Floodplain Water Bodies

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