Environmental factors affect macrophyte diversity on Amazonian aquatic ecosystems inserted in an anthropogenic landscape

Fares, Ana Luisa Biondi; Calvão, Lenize Batista; Torres, Naiara Raiol; Gurgel, Ely Simone Cajueiro; Michelan, Thaísa Sala

doi:10.1016/j.ecolind.2020.106231

Cited by 47 publications

(18 citation statements)

References 63 publications

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“…Moreover, aquatic vegetation and abiotic factors are also related to Odonata structure of these habitats (Juen et al 2007, Borges et al 2021. For example, palm swamp and open habitats, such as degraded areas (Fares et al 2020), are diverse in macrophytes, which are used as oviposition site or substrate during larvae development of some dependent libellulids and coenagrionids species , Brito et al 2020. Notably, degradation level, biased sample methods and time effort between phytophysiognomies must also be considered in our results, since some species found in a specific habitat in our study were present or absent in other palm swamp and forest studies (Rodrigues et al 2018, Vilela et al 2020a).…”

Section: Discussionmentioning

confidence: 77%

Dragonflies and Damselflies in a region of the Triângulo Mineiro, Minas Gerais: checklist and taxonomic additions

et al. 2021

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Remaining freshwater systems are historically under threat mainly due to human activities such as agriculture and urbanization. The consequences of such activities are innumerous, and among them there is a decrease of suitable habitats for threatened fauna. In the Brazilian Cerrado, the odonatofauna of palm swamps and riparian forests are still poorly explored, a fact that difficult conservation efforts of the group. Thus, we performed an inventory in several urban and rural sites containing these phytophysiognomies in Uberlândia, Triângulo Mineiro region, western Minas Gerais state. In total, we found 101 Odonata species, seven families and 46 genera in the municipality, with 76 and 66 species, respectively, belonging to palm swamp and forest sites. From this diversity, eight species were first records in the state of Minas Gerais: Neuraeschna claviforcipata Martin, 1909, Phyllocycla cf. medusaBelle, 1988, Diastatops intensa Montgomery, 1940, Oligoclada pachystigma Karsch, 1890, O. xanthopleura Borror, 1931, Angelagrion nathaliaeLencioni, 2008, Telebasis sanguinalis Calvert, 1909 and Telebasis simulacrum (Calvert, 1909). We also sampled Erythrodiplax anaGuillermo-Ferreira & Vilela 2016, a species listed as endangered (EN) by the IUCN red list. Additionally, we include some taxonomic notes of Forcepsioneura machadorum females, a newly discovered species in the region. Our results contribute to the Odonata database in Brazil and highlights the importance inventories in poorly explored aquatic ecosystems.

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Section: Discussionmentioning

confidence: 77%

Dragonflies and Damselflies in a region of the Triângulo Mineiro, Minas Gerais: checklist and taxonomic additions

et al. 2021

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“…As time goes on, almost all of them show an obvious upward trend. However, dominance of Eucapsis sp., Microcystis wesenbergii, and Anabaena osaquae might result in a decrease in numbers of others (Fares et al, 2020). Because these species in Cyanophyta assemblage has an effect on ltration, they are hard to be digested and also for the reason of that they release toxins, leading to changes in biodiversity (Yang et al, 2017;Li et al, 2020).…”

Section: Temporal Variation Of Abundance and Biomass Of Dominant Phytmentioning

confidence: 99%

Temporal variation revealed the composition change of phytoplankton assemblage responds to varied environmental indicators within an artificial freshwater engineered ecosystem

Xu¹,

Wang²,

Chen³

et al. 2021

Preprint

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Artificial freshwater engineering ecosystems (AFwEEs) have attracted more and more attention. Phytoplankton is critical to the fluctuation of water quality in the AFwEEs. However, there is still a major knowledge gap regarding the ecology, composition, and temporal dynamics of phytoplankton assemblage composition in AFwEEs. Hence, an AFwEEs designed base on the submerged macrophytes (i.e., Vallisneria natans, Najas marina, and Potamogeton crispus) and fishes (i.e., Hypophthalmichthys molitrix, Hypophthalmichthys nobilis, and Ctenopharyngodon idellus) was established. The initial purpose for this survey was to conduct almost entire year (April/2019 – December/2019) sampling investigation to explain the interactions and relationship between multifarious environmental indicators and phytoplankton, also for the different phenomenon explanation of composition change in phytoplankton assemblage between AFwEEs and natural water environments. Consequences exhibited the assemblage dynamics of the phytoplankton were significant varied with seasonal succession, in which Cyanophyta dominated the phytoplankton assemblage while the mean relative abundance accounted for 66.4%, and then was Chlorophyta, for 18.8%. Principal component analysis (PCA) demonstrated temporal variation was significant impacted on phytoplankton assemblages. The dominant species, different assemblages, and distribution of phytoplankton were closely related to the dynamic changes of seasonal succession, which might change the composition of phytoplankton assemblage in the FwAEEs. Results of redundancy analysis (RDA) revealed the water temperature, nutrient concentration, DO concentration, and pH value were the main abiotic environmental indicators affecting phytoplankton assemblage. The trend of the four diversity indices indicated the phytoplankton assemblage became more stable in winter while the change extent of that was more significant in summer.

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“…Lower heterogeneity of canopy covers due to reduced riparian vegetation strata has also been reported elsewhere (Simião‐Ferreira et al, 2018). The increase in solar incidence in streams in catchments where land use change is intense can increase the amount of macrophytes, which in turn may increase the heterogeneity of perches (Elo et al, 2018; Fares et al, 2020). Perch heterogeneity may favour higher species diversity, including endophytic species tolerant to habitat alteration and exophytic species that select altered areas (Pereira et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Correlates of Odonata species composition in Amazonian streams depend on dissimilarity coefficient and oviposition strategy

Calvão

Siqueira

Faria

et al. 2022

Ecological Entomology

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Environmental and spatial heterogeneity affects the distribution of aquatic insects, determining or influencing the variation in local species composition. Dragonflies and damselflies (Odonata) have different strategies for oviposition site selection that depend on environmental conditions. However, Land Use and Land Cover (LULC) can reduce the availability of suitable sites for Odonata oviposition through environmental homogenization. We investigated the relationship between environmental and spatial heterogeneity and variation in species composition of Odonata with different oviposition strategies (endophytic, epiphytic and exophytic) in Amazonian streams in a gradient of LULC. We used the Jaccard and Bray‐Curtis coefficients and the Manhattan distance to estimate a continuum of variation in species composition. Variation in the composition of endophytic and epiphytic species was explained by spatial heterogeneity. Using abundance data and the Manhattan distance, we found a relationship between variation in species composition and environmental heterogeneity. Endophytic species composition was related to perch heterogeneity, while exophytic species composition was related to perch and canopy cover heterogeneity. Exophytic and endophytic species could be used in biomonitoring as they respond to specific environmental predictors and because exophytic species do not have spatial patterns across the landscape. Different dissimilarity coefficients provide complementary information about the responses of multispecies communities to land use, as some will represent strong effects (presence‐absence indexes) while others will represent more subtle effects (abundance‐based indexes). Land use can increase the environmental heterogeneity of some predictors (perches and canopy cover). Physical changes in streams such as hydromorphological alterations can modify specific habitats, affecting oviposition strategies and supporting tolerant species.

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Environmental factors affect macrophyte diversity on Amazonian aquatic ecosystems inserted in an anthropogenic landscape

Cited by 47 publications

References 63 publications

Dragonflies and Damselflies in a region of the Triângulo Mineiro, Minas Gerais: checklist and taxonomic additions

Dragonflies and Damselflies in a region of the Triângulo Mineiro, Minas Gerais: checklist and taxonomic additions

Temporal variation revealed the composition change of phytoplankton assemblage responds to varied environmental indicators within an artificial freshwater engineered ecosystem

Correlates of Odonata species composition in Amazonian streams depend on dissimilarity coefficient and oviposition strategy

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