Ecosystem Shift from Submerged to Floating Plants Simplifying the Food Web in a Tropical Shallow Lake

Moi, Dieison André; Alves, Diego Corrêa; Antiqueira, Pablo A. P.; Thomaz, Sidinei Magela; Mello, Franco Teixeira de; Bonecker, Cláudia Cósta; Rodrigues, Luzia Cleide; García-Ríos, Raúl; Mormul, Roger Paulo

doi:10.1007/s10021-020-00539-y

Cited by 16 publications

(23 citation statements)

References 44 publications

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“…(2017), and Moi, Alves, et al. (2020). The relationships between trophic groups were specified with base on what commonly occurs in natural systems (Figure S1).…”

Section: Methodsmentioning

confidence: 98%

“…Macroinvertebrate larvae were sampled using Petersen sampler (0.0345 m 2 ), and samples were collected three times at both sides and in the centre of each lake (Moi, Alves, et al., 2020). Rotifers, nauplii, microcrustaceans and Amoeba Testacea were sampled at the subsurface in the pelagic zone using a motorized pump and a plankton net (68 µm) that filtered 1,000 L water per sample.…”

Section: Methodsmentioning

confidence: 99%

“…Importantly, our study is conducted in a floodplain system, where during floods the environments, such as lakes and rivers are connected. The connection of the lakes with rivers causes the exchange of species, especially in the lakes (Agostinho et al., 2004; Moi, Alves, et al., 2020; Thomaz et al., 2004). Thus, the temporal samples realized in our study may be considered independent, since species and water of lakes changes between sample periods.…”

Section: Methodsmentioning

confidence: 99%

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Multitrophic richness enhances ecosystem multifunctionality of tropical shallow lakes

et al. 2021

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The role of multitrophic diversity in sustaining multiple functions simultaneously (multifunctionality) is still poorly understood in natural communities, especially in highly diverse aquatic ecosystems. Existing studies have focused on the effect of single trophic group on ecosystem function and on individual ecosystem functions, neglecting the fact that multiple trophic groups are needed to maintain ecosystem multifunctionality. Here, using a 16‐year database from tropical shallow lakes, we combined species richness of nine single trophic group into a unique measurement of multitrophic richness. We then investigated the influence of the richness within separate single trophic group and in a multitrophic context on ecosystem multifunctionality. We also investigated how removal of any single trophic group influence the effect of the multitrophic richness on multifunctionality; and how the interactions among multiple single trophic group affect multifunctionality. We showed that the multitrophic richness had a stronger positive effect on multifunctionality than the richness of single trophic group. The removal of each single trophic group decreased the effect of the multitrophic richness on multifunctionality. The larger predatory vertebrates and primary producers had stronger positive effects on multifunctionality, but the richness of basal trophic groups fuelled the large‐sized predators, thus indirectly contributing to increase multifunctionality. Our study highlights the need for preserving multiple trophic groups to sustain multifunctionality in highly diverse aquatic ecosystems; thus, trophic degradation of the ecosystems should strongly impair their functioning. A free Plain Language Summary can be found within the Supporting Information of this article.

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“…(2017), and Moi, Alves, et al. (2020). The relationships between trophic groups were specified with base on what commonly occurs in natural systems (Figure S1).…”

Section: Methodsmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Multitrophic richness enhances ecosystem multifunctionality of tropical shallow lakes

et al. 2021

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“…Plants stabilize aquatic ecosystems by removing nutrients from the water column and controlling sediment resuspension (Levi et al 2015). This increases water clarity, thus making aquatic ecosystems healthier (Moi et al 2020;Silva et al 2021), consequently increasing the richness of multiple trophic groups of shes, especially of the apex predators (Moi et al 2020).…”

Section: Discussionmentioning

confidence: 99%

“…For instance, for the vegetation facet, we used the percentage of plant presence. Plant presence increases habitat heterogeneity by providing habitats that allow species coexistence and increase sh biodiversity (Moi et al 2020). For the soil facet, we measured the diversity of the substrate (sediment) types.…”

Section: Quantifying Habitat Heterogeneitymentioning

confidence: 99%

Urbanization decreased the multitrophic fish richness and ecosystem functioning in neotropical streams

Moi

Mello

2021

Preprint

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Urbanization is regarded a major global threat to biodiversity and ecosystem functioning. Streams are among the most severely affected ecosystems due to worldwide urbanization. An increase in urbanization causes water quality deterioration and loss of habitat heterogeneity in streams. However, it is unclear how water quality deterioration and loss of habitat heterogeneity due to urbanization affect multitrophic diversity and performance of ecosystem functioning. We conducted 2,400 samplings in six streams across Uruguay to investigate how increases in urbanization (area and percentage of urbanization) affect the richness of three trophic groups of fishes and the standing stock biomass of the streams. We investigated the direct and indirect effects, mediated by water quality deterioration and habitat heterogeneity of the urbanization on carnivore, omnivore, and detritivore fish richness and standing stock biomass of streams. The increase in urbanization (area and percentagem) in the streams significantly decreased the richness of carnivores, omnivores, and detritivores fishes. The increase in urbanization also strongly decreased habitat heterogeneity and increased water quality deterioration, which indirectly decreased the carnivore, omnivore, and detritivore fish richness. Urbanization also had strong negative effects on the standing stock biomass of the streams. Our study illustrates that urbanization promotes water quality deterioration and loss of habitat heterogeneity in streams, which indirectly causes loss of multitrophic fish richness and biomass production of streams.

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Anthropogenic activities and habitat complexity influence fish functional diversity in a Neotropical reservoir

Nascimento

Alves

Latini³

et al. 2022

Aquat Sci

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Ecosystem Shift from Submerged to Floating Plants Simplifying the Food Web in a Tropical Shallow Lake

Cited by 16 publications

References 44 publications

Multitrophic richness enhances ecosystem multifunctionality of tropical shallow lakes

Multitrophic richness enhances ecosystem multifunctionality of tropical shallow lakes

Urbanization decreased the multitrophic fish richness and ecosystem functioning in neotropical streams

Anthropogenic activities and habitat complexity influence fish functional diversity in a Neotropical reservoir

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