Influence of taxonomic determination level on several community indices

Guérold, François

doi:10.1016/s0043-1354(99)00165-7

Cited by 68 publications

(48 citation statements)

References 11 publications

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“…Although high taxonomic resolution is desirable for biodiversity estimates, the ability to identify macroinvertebrate organisms from the Uberabinha river catchment to a lower taxonomic level than family would be very time consuming due to the required sampling effort. Furthermore, some studies have shown a strong correlation between species richness and richness based on both genus and family levels among macroinvertebrates (FURSE et al, 1984;HEWLETT, 2000;GUEROLD, 2000;MARSHALL et al, 2006). In a study about taxonomic resolution of freshwater macroinvertebrate samples from an Australian dryland catchment, Marshall et al (2006) showed that identification to family level is highly correlated to species level identification (>0.90%), suggesting that estimates of richness based on family resolution may adequately reflect species richness.…”

Section: Discussionmentioning

confidence: 99%

Assessment of ecological water quality along a rural to urban land use gradient using benthic macroinvertebrate-based indexes

Nascimento¹,

Alves‐Martins²,

Jacobucci³

2018

Biosci. J.

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Agricultural practices such as livestock grazing and tilling can result in soil erosion and runoff of fine sediments, nutrients (e.g. nitrogen, phosphorus, potassium) and pesticides, leading to degradation of aquatic environments. Urbanization is also responsible for a variety of impacts on fluvial ecosystems, including pollution by heavy metals, oil, domestic sewage and garbage. In this study, we evaluate the impact of land use on stream health of the Uberabinha river catchment. Overall, rural streams presented better ecological conditions than urban streams. Both species composition and abundance of benthic communities showed significant differences between rural and urban streams. Urban streams presented a higher dominance of Oligochaeta, Hirudinea and Gastropoda, bioindicators of poor water quality. Rural streams presented significantly greater richness and diversity. Compared to urban streams, rural streams presented a significantly higher number of Ephemeroptera, Plecoptera, Trichoptera, Odonata and Hemiptera taxa. Our analyses also showed congruence (high correlation) among the classical biodiversity metrics (Shannon-Wiener index -H', Pielou's measure of eveness -J) and monitoring parameters (% Ephemeroptera, Plecoptera and Trichoptera -EPT, Biological Monitoring Work Party -BMWP, bioindicator approach and Rapid Assessment Protocol -RAP, a habitatbased approach). Five from seven rural streams presented good water quality according to both BMWP and RAP and none of the urban streams presented good water quality. Our results show that the urban streams of Uberlândia municipality are poor ecosystems, and require improved management actions by environmental authorities. We also encourage that the riparian forest restoration and management carried out in the upper portion of Uberabinha River catchment to be extended to the urban area of the municipality.

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Section: Discussionmentioning

confidence: 99%

Assessment of ecological water quality along a rural to urban land use gradient using benthic macroinvertebrate-based indexes

Nascimento¹,

Alves‐Martins²,

Jacobucci³

2018

Biosci. J.

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“…[57] used seven diversity indices to assess the effect of no-till farming on carabid communities and concluded that these diversity indices and models are not useful for the detection of the possible effects on carabids. [58] concluded that for differences in the values of diversity indices to be observed, the taxonomic level of identification must be deeper. However, identification to lower levels would hinder the use of diversity indices as quality indicators because sampling and identification would be more complex and costly, requiring the aid of specialists knowledgeable about the different taxonomic groups; such high-precision identification contrasts with the indicator characteristics proposed by [59].…”

Section: Indices Of Ecological Diversitymentioning

confidence: 99%

Agro-Industrial Waste Management: A Case Study of Soil Fauna Responses to the Use of Biowaste as Meadow Fertiliser in Galiza, Northwestern Spain

Matos-Moreira¹,

Cunha²,

López-Mosquera³

et al. 2012

Waste Management - An Integrated Vision

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“…Nesse contexto, Wright et al (1995) analisaram a utilização dos níveis de família e espécie em estudos ecoló-gicos e observaram o mesmo padrão de resposta utilizando ambos os níveis taxonômicos para avaliar o impacto de efluente de esgoto na comunidade macrobentônica, o que justificaria a identificação em nível de família, diminuindo tempo e custo das análises. Já Guerold (2000) observou que o uso do nível de família para o cálculo de algumas métricas é perigoso, especialmente ao medir a qualidade da água e as mudanças nas comunidades de macroinvertebrados. Para o autor, o uso de níveis taxonômicos maiores subestima o efeito das alterações ambientais.…”

Section: Introductionunclassified

Relação entre uso do solo e composição de insetos aquáticos de quatro bacias hidrográficas do Estado de São Paulo

Sonoda

Vettorazzi

Ortega

2012

Neotropical Biology and Conservation

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ResumoAs comunidades de insetos aquáticos de quatro bacias hidrográficas sob diferentes graus de ocupação humana foram analisadas em relação aos usos do solo, à declividade do terreno e às variáveis físicas e químicas da água. As bacias hidrográficas estudadas foram Alto Paranapanema, Peixe, Aguapeí e São José dos Dourados. Amostras de insetos aquáticos foram coletadas utilizando-se cestos com substrato artificial, entre agosto e outubro de 2002. Foram colocadas 18 repetições em cada rio, e os insetos amostrados foram identificados em nível de família e contados. Os dados foram analisados em números absolutos e percentuais de indivíduos e de táxons, e também índices comunitários. Informações sobre as bacias hidrográficas foram geradas a partir de mapas digitais. Foram identificadas 32 famílias, Elmidae, Leptohyphidae, Leptophlebiidae, Chironomidae, Simuliidae e Hydropsychidae apresentaram dominância. Dez variáveis físicas e químicas da água apresentaram relação direta sobre os rios; porcentagens dos usos do solo e das declividades foram calculadas. Utilizou-se a correlação de Pearson, Análise de Variância (ANOVA) e análise de correspondência para integrar os dados abióticos e biológicos. O estudo mostrou a importância do uso do solo imediatamente adjacente ao local de coleta como o fator de maior influência sobre a entomofauna.Palavras-chave: ambientes lóticos, macroinvertebrados aquáticos, rios, sudeste do Brasil, vegetação ripária. AbstractFour watersheds with different degrees of human occupation had their communities of aquatic insects analyzed in relation to the landuses, terrain slope as well as chemical and physical variables of water. The watersheds studied were Alto Paranapanema, Peixe, Aguapei and São José dos Dourados. Samples of aquatic insects were taken with baskets filled with artificial substrates, during August and October/2002. Eighteen samples were taken from each river and the aquatic insects were identified until family level and counted. To analyze the results, total and percentage numbers of individuals and taxons were used, as well as community indeces. Information about the watersheds were generated from digital maps. Thirty-two families were identified, Elmidae, Leptohyphidae, Leptophlebiidae, Chironomidae, Simuliidae and Hydropsychidae showed numeric dominance. Ten chemical and physical variables tested were able to characterize the rivers; percentages of the main landuses and terrain slope were calculated. Pearson's correlation index, analysis of variance and analysis of correspondence were used in order to establish the relationship between abiotic components and the entomofauna. The study showed that the land use condition immediately adjacent to the sampling site is the most important factor influencing that fauna.

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Influence of taxonomic determination level on several community indices

Cited by 68 publications

References 11 publications

Assessment of ecological water quality along a rural to urban land use gradient using benthic macroinvertebrate-based indexes

Assessment of ecological water quality along a rural to urban land use gradient using benthic macroinvertebrate-based indexes

Agro-Industrial Waste Management: A Case Study of Soil Fauna Responses to the Use of Biowaste as Meadow Fertiliser in Galiza, Northwestern Spain

Relação entre uso do solo e composição de insetos aquáticos de quatro bacias hidrográficas do Estado de São Paulo

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