Role of sediment structuring by detritus on colonization and interspecific competition of one native and one invasive submerged macrophyte

Dainez-Filho, Mário Sérgio; Michelan, Thaísa Sala; Louback-Franco, Nayara; Souza, Douglas Costa; Cafofo, Emanuel G.; Thomaz, Sidinei Magela

doi:10.1007/s10750-019-3909-8

Cited by 9 publications

(3 citation statements)

References 44 publications

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“…In the case of submerged plants, roots play a key role in nutrient uptake from sediment. The structure, density and nutrient content of sediment directly impact root development and, consequently, overall plant growth [31]. The allocation of aboveground and under-ground biomass in M. spicatum is influenced by water quality and light conditions.…”

Section: Discussionmentioning

confidence: 99%

Effects of Sediment Types and Planting Density on the Plant Trait of <i>Myriophyllum spicatum</i>

Qin,

Tian,

2023

Pol. J. Environ. Stud.

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The study aimed to investigate the effects of sediment types and planting density on the functional traits, growth and community stability of submerged plants, particularly Myriophyllum spicatum. An indoor cultivation experiment was conducted, where different planting densities (1 plant/pot, 10 plants/pot) and sediment types (mud, upper sand + lower mud, sand, upper mud + lower sand) were evaluated for their impact on the species. The findings are as follows: (1) Both sediment types and planting density had significant effects on the morphological characteristics and biomass of M. spicatum; (2) Morphological characteristics: the growth of M. spicatum displayed superior results in all low-density planting conditions compared to high-density; (3) Biomass: planting density had limited impact on biomass allocation patterns within the same sediment type; however, there was a significantly higher in areas with sediment heterogeneity compared to homogeneity. The high morphological plasticity of M. spicatum enables it to adapt to heterogeneous habitats, which likely contribute to its importance as a pioneer species in water restoration projects. These results provide valuable insights for the technical research and development of screening, expansion, colonization and construction, as well as the regulation and management of submerged plant. Moreover, they offer technical support for aquatic ecosystem restoration engineering.

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Section: Discussionmentioning

confidence: 99%

Effects of Sediment Types and Planting Density on the Plant Trait of <i>Myriophyllum spicatum</i>

Qin,

Tian,

2023

Pol. J. Environ. Stud.

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“…The presence of free-floating species on beds where U. arrecta is dominant corroborates this rationale. Yet, the decomposition of U. arrecta biomass and the diminished circulation of water between its stems, could favour an accumulation of nutrients in the adjacent water, allowing the free-floating plants to prosper after ending up trapped by the extensive U. arrecta macrophyte beds (e.g., Dainez-Filho et al 2019 ). Furthermore, the dominance of the established U. arrecta can hamper the recolonization of other species (Michelan et al 2018 ), promoting a positive feedback.…”

Section: Discussionmentioning

confidence: 99%

Community stability and seasonal biotic homogenisation emphasize the effect of the invasive tropical tanner grass on macrophytes from a highly dynamic neotropical tidal river

et al. 2022

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“…The genera Egeria and Hydrilla (Hydrocharitaceae) have been a focus of concern in reservoirs worldwide because of changes in water flow, displacement of native vegetation, and negative impacts on non-plant species (True-Meadows et al 2016). Their large biomass (Bianchini Jr. et al 2010;Silveira & Thomaz 2019) increases the amount of litter and modifies habitat conditions (Dainez-Filho et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Enzymatic efficiency of the decomposing microbiota: what does really matter for aquatic macrophytes invasions?

Castro¹,

Bonugli-Santos²,

Sibim³

et al. 2021

Acta Bot. Bras.

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Biological invasions have negative impacts on different ecosystem-level functions, such as nutrient cycling. In aquatic environments, exotic litter can change the activity of the decomposer microbiota. We tested whether litter quality, litter decay, and enzyme activity differed between native Egeria densa and exotic Hydrilla verticillata. The invasive plant presented higher lignin and lower cellulose content than the native plant. Both species showed rapid fibre decay in the first five days. E. densa had higher cellulose and hemicellulose decay than H. verticillatta. Although the species did not exhibit differences in enzyme activity over time, E. densa had a higher enzymatic efficiency than H. verticillata. This differential enzymatic performance can cause changes in the mineralisation processes of the invaded environments. The lower decomposition rates for invasive litter, associated with differences in litter quality, could increase the amount of particulate organic material in invaded environments.

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Role of sediment structuring by detritus on colonization and interspecific competition of one native and one invasive submerged macrophyte

Cited by 9 publications

References 44 publications

Effects of Sediment Types and Planting Density on the Plant Trait of <i>Myriophyllum spicatum</i>

Effects of Sediment Types and Planting Density on the Plant Trait of <i>Myriophyllum spicatum</i>

Community stability and seasonal biotic homogenisation emphasize the effect of the invasive tropical tanner grass on macrophytes from a highly dynamic neotropical tidal river

Enzymatic efficiency of the decomposing microbiota: what does really matter for aquatic macrophytes invasions?

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