An example of relationships between macrophytes, macroinvertebrates and their food resources in a shallow euthrophic lake

Dvořák, Jan

doi:10.1007/bf00008910

Cited by 42 publications

(9 citation statements)

References 19 publications

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“…The accelerated senescence and eutrophication in this lake seems to have been able to originate an analogous situation investigated by Dvorák (1996), in the shallow eutrophic Lake Loosdrecht, where the process results in selecting and supporting detritivore and filtering forms.…”

Section: Coenotic Likenessmentioning

confidence: 59%

Phytophilous Chironomidae (Diptera) and other macroinvertebrates in the ox-bow Infernão Lake (Jataí Ecological Station, Luiz Antônio, SP, Brazil)

Trivinho‐Strixino

Correia

Sonoda³

2000

Rev. Bras. Biol.

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Infernão Lake, located within the Jataí Ecological Station in Luiz Ant nio Municipal district (São Paulo State, Brazil), is one of the most typical ox-bow lake of the Mogi-Guaçu River, and it presents, as the main feature, its great quantity of aquatic macrophytes, whose intensive development, in the last years practically covered the whole mirror of water. With the purpose to point out the composition and to establish the relative participation of the phytophilic zoocoenosis that inhabits the different macrophytes of that lake, a collection program of the main vegetation stands was established. The collections, were carried out randomly, during dry season (1994), in stands of Salvinia auriculata, Utricularia sp., Cabomba piauhyensis, Eichhornia azurea and Scirpus cubensis being used specific methodology for each vegetable type. The analysis of the different macrophytes showed the presence of 4,130 macroinvertebrates of 28 families, in which Chironomidae (Diptera) and Naididae (Oligochaeta) were the most representative, contributing on the average with 51% and 25% of the total fauna. Asheum, Beardius, Chironomus, Goeldichironomus, Parachironomus and Polypedilum were the most abundant Chironomidae genera. Species of the genus Dero (Dero) and D. (Aulophorus) represented the most typical Naididac of the phytofauna. With clear faunistic gradient from the shore to the center of the lake, the taxocoenosis indicated low similarity (PSc < 50%), evidencing its own characteristics of each biotope. On the contrary, there was a high similarity (PSc > 60%) among the associated communities on different vegetables, when grouped into feeding guilds, with expressive participation, in most of the macrophytes, of the collector-gatherers category, except on S. auriculata, whose predators (> 50%) and collector-filterers (> 20%) dominance turned that zoocoenosis distinct from the others.

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Section: Coenotic Likenessmentioning

confidence: 59%

Phytophilous Chironomidae (Diptera) and other macroinvertebrates in the ox-bow Infernão Lake (Jataí Ecological Station, Luiz Antônio, SP, Brazil)

Trivinho‐Strixino

Correia

Sonoda³

2000

Rev. Bras. Biol.

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“…Smiths & Young (1973), studying small ponds in England, also observed that this genus was common living in the vegetation of the margins. Dvorák (1996) found strong positive correlation between the abundance of Cricotopus and the biomass of diatoms on the surface of aquatic macrophytes. Thus, the distribution of this genus is more likely dependent on the presence of food supplies than the physical and chemical traits of the water column.…”

Section: Discussionmentioning

confidence: 83%

Distribution and abundance of Chironomidae (Diptera, Insecta) in an impacted watershed in South-east Brazil

1999

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Patterns of abundance and distribution of chironomid midges (Diptera, Chironomidae) in the middle Rio Doce basin were analysed. Human activities (mining, steel processing, and Eucalyptus spp. forestry) contribute to environmental degradation and low water quality in this watershed. Physical and chemical water traits (dissolved oxygen, pH, total alkalinity, electric conductivity, phosphorus and nitrogen concentrations) of 20 sampling points were used in a Principal Component Analysis (PCA) to establish the best and worst water quality. Sampling points recorded as the most polluted showed low genus richness of Chironomidae, less than five genera from the total 23, and dominance of the genus Chironomus, a bioindicator of environmental stress. Following Chironomus, the second most frequent and abundant genus was Cricotopus, whose distribution could not be related to pollution levels. The Tanypodinae sub-family showed certain sensitivity to low dissolved oxygen concentrations and high nutrients levels, and was not found at points of high pollution levels.

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“…They often support complex vegetation mosaics, which provide habitat for diverse communities of organisms, both invertebrates and vertebrates (Dvořák andBest 1982, González Sagrario andBalseiro 2010). Changes in vegetation caused by increases in nutrient supply (often from anthropogenic activities) result in changes in habitat suitability.…”

Section: Habitat Providermentioning

confidence: 99%

The role of macrophytes in wetland ecosystems

Rejmánková¹

2011

J. Ecol. Environ.

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Aquatic macrophytes, often also called hydrophytes, are key components of aquatic and wetland ecosystems. This review is to briefly summarizes various macrophyte classifications, and covers numerous aspects of macrophytes' role in wetland ecosystems, namely in nutrient cycling. The most widely accepted macrophyte classification differentiates between freely floating macrophytes and those attached to the substrate, with the attached, or rooted macrophytes further divided into three categories: floating-leaved, submerged and emergent. Biogeochemical processes in the water column and sediments are to a large extent influenced by the type of macrophytes. Macrophytes vary in their biomass production, capability to recycle nutrients, and impacts on the rhizosphere by release of oxygen and organic carbon, as well as their capability to serve as a conduit for methane. With increasing eutrophication, the species diversity of wetland macrophytes generally declines, and the speciose communities are being replaced by monoculture-forming strong competitors. A similar situation often happens with invasive species. The roles of macrophytes and sediment microorganisms in wetland ecosystems are closely connected and should be studied simultaneously rather than in isolation.

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An example of relationships between macrophytes, macroinvertebrates and their food resources in a shallow euthrophic lake

Cited by 42 publications

References 19 publications

Phytophilous Chironomidae (Diptera) and other macroinvertebrates in the ox-bow Infernão Lake (Jataí Ecological Station, Luiz Antônio, SP, Brazil)

Phytophilous Chironomidae (Diptera) and other macroinvertebrates in the ox-bow Infernão Lake (Jataí Ecological Station, Luiz Antônio, SP, Brazil)

Distribution and abundance of Chironomidae (Diptera, Insecta) in an impacted watershed in South-east Brazil

The role of macrophytes in wetland ecosystems

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