Optimization of field and laboratory methods for benthic invertebrate biomonitoring

Taylor, B E

doi:10.4095/306928

Cited by 7 publications

(9 citation statements)

References 121 publications

(272 reference statements)

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“…The results obtained in the present study also agree with the results obtained by stream macro‐invertebrate analysis, where identification at the family level was as effective as the genus and species level in multivariate analysis across a region, although the species‐level approach allowed a more sensitive and responsive assessment at smaller scales or detection of finer levels of impairments (Marchant, 1990; Taylor, 1997; Davies & Cook, 2003).…”

Section: Discussionsupporting

confidence: 89%

“…The effect of taxonomic level on the sensitivity of biomonitoring programmes has been widely discussed for aquatic ecosystems; however, there is no broad consensus among researchers. Some researchers emphasize species‐level identifications, others recommend using higher taxa under some circumstances, whereas yet others suggest using both, depending on the objectives of the study (Taylor, 1997).…”

Section: Introductionmentioning

confidence: 99%

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Sensitivity of different taxonomic levels of soil Gamasina to land use and anthropogenic disturbances

Bedano

Ruf

2010

Agri and Forest Entomology

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1 The effect of taxonomic level on the sensitivity of bioindicators has been widely investigated in aquatic ecosystems and, to a lesser extent, in terrestrial ecosystems. However, no studies have been conducted on the sensitivity of the different taxonomic levels of soil mites, especially Gamasina, to human activities. 2 The present study aimed to assess the sensitivity of different taxonomic levels of soil Gamasina mites to anthropogenic disturbances in Europe and Argentina. We arranged the data from previous projects in a hierarchical system and conducted a study to identify the critical taxonomical levels that had the highest discriminative potential between sites (Europe and Argentina) or management types (forests, grasslands, fallows, succession, recultivation and agricultural sites). 3 For the Gamasina community, geographical location was by far more important than the influence of any land use type. The analysis including only the European sites demonstrated that communities belonging to sites subjected to different land uses were also significantly different. 4 The species data set provided a clearer separation of sites according to both the geographical and the land-use gradients than the genus and family data sets. The genus and, to a lesser extent, the family approach may be sufficient to elucidate the influence of great geographical differences and also of certain land uses (e.g. grasslands from the forests and arable sites). 5 Species presence/absence data provided valuable information in our analyses, although the use of quantitative data yielded a clearer separation of sites.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Sensitivity of different taxonomic levels of soil Gamasina to land use and anthropogenic disturbances

Bedano

Ruf

2010

Agri and Forest Entomology

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“…organisms that are not completely identified because of small size, incomplete development, damage, or poor preservation) were resolved by distributing the abundance of the ambiguous parents among their children in accordance with the relative abundance of each child using the Invertebrate Data Analysis System (IDAS; Cuffney, 2003). This approach represents a compromise between removing redundant taxonomic information and conserving quantitative information on taxa richness and abundance (Taylor, 1997) and is one of the methods suggested by Cuffney et al (2007). Patterns in macroinvertebrate-assemblage structure among sampling sites were examined using non-metric multidimensional scaling (NMDS).…”

Section: Discussionmentioning

confidence: 99%

Determining hydrologic factors that influence stream macroinvertebrate assemblages in the northeastern US

2009

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The effects of changes in the landscape and alteration of natural flow process on aquatic macroinvertebrate assemblages were investigated in 67 small-to-medium sized (15-526 km 2 ) upland streams in the northeastern United States. Environmental characteristics that were found to be important in determining macroinvertebrate-assemblage composition include urbanization and concomitant changes in natural streamflow patterns. In particular, hydrologic attributes accounted for a significant proportion of the variability and were important in driving modifications to assemblage structure after natural environmental variability was extracted. For example, mean April flow accounted for the greatest amount of assemblage variability in any single multiple linear regression (MLR) model (65%) and duration of high flows accounted for a significant portion of the assemblage variability in the five, four and one-variable models (25, 26, and 23%, respectively). Seasonal predictability of low flow consistently accounted for a significant proportion of the assemblage variability in all but the two-variable (MLR) model. Significant (p < 0Ð05) bivariate flow-ecology response relations were established, especially for hydrologic measures that account for the frequency, duration, and magnitude of flow events, and these relations generally followed increasing or decreasing trends that would be expected given changes in stream hydrology. This study demonstrates that there are likely specific negative consequences to stream biotic integrity in northeastern streams as the result of hydrologic alteration associated with basin urbanization. Understanding the relations between hydrologic modification and aquatic assemblages will help efforts to set sustainable flow standards for protection of aquatic assemblages while providing water for human needs. Published in

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“…organisms that are not completely identified because of small size, incomplete development, damage, or poor preservation) were typically resolved by distributing the abundance of the ambiguous parents among their children in accordance with the relative abundance of each child (Cuffney 2003). This approach, which represents a compromise between removing redundant taxonomic information and conserving quantitative information on taxa richness and abundance (Taylor 1997), is one of the methods suggested by Cuffney et al (2007). After taxonomic data processing, the IDAS program was used to calculate a suite of macroinvertebrate-assemblage metrics and diversity measures, many of which are commonly used in stream bioassessment (Barbour et al 1999).…”

Section: Methodsmentioning

confidence: 99%

Effects of streamflow reductions on aquatic macroinvertebrates: linking groundwater withdrawals and assemblage response in southern New Jersey streams, USA

Kennen

Riskin

Charles

2014

Hydrological Sciences Journal

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A comprehensive hydro-ecological investigation was conducted to determine the ecological response of increased groundwater withdrawals from the Kirkwood-Cohansey aquifer system, an important source of water supply in southern New Jersey, USA. Collocated observations were made of aquatic-macroinvertebrate assemblages and stream hydrologic attributes to develop flow-ecology response relations. A sub-regional transient groundwater flow model (MODFLOW) was used to simulate three plausible high-stress groundwater-withdrawal scenarios which resulted in stream baseflow reductions of approximately 0.12, 0.20, and 0.26 m 3 s -1 . These reduction scenarios were used to construct flow-alteration ecological response models to evaluate aquaticmacroinvertebrate response to streamflow reduction. For example, flow-alteration ecological response models indicate that if groundwater withdrawals diminish mean annual streamflow from 1.1 to 0.6 m 3 s -1 , the abundance of intolerant taxa could be reduced by as much as 20%. These flow-alteration ecological response modelling results could be used by resource professionals to evaluate alternative water management strategies to determine maximum basin withdrawal rates that meet ongoing human water demand while protecting biological integrity.Key words hydro-ecology; streamflow alteration; aquatic macroinvertebrates; flow-ecology relations; groundwater model; MODFLOW; withdrawal scenarios Effets de la réduction des débits sur les macro-invertébrés aquatiques: relier les prélèvements d'eaux souterraines et la réponse des communautés dans les cours d'eaux du Sud du New Jersey, Etats-Unis Résumé Une enquête hydro-écologique globale a été menée pour déterminer la réponse écologique de l'augmentation des prélèvements d'eau souterraine de l'aquifère Kirkwood-Cohansey, une importante source d'approvisionnement en eau du Sud du New Jersey, Etats-Unis. Des observations co-localisées de communautés de macro-invertébrés aquatiques et d'attributs hydrologiques des cours d'eau ont été réalisées pour établir les relations de la réponse débit-écologie. Un modèle sous-régional transitoire de l'écoulement des eaux souterraines (MODFLOW) a été utilisé pour simuler trois scénarios plausibles de prélèvements importants des eaux souterraines qui ont abouti à une réduction du débit de base des cours d'eau de l'ordre de 0,12, 0,20 et 0,26 m3/s. Ces scénarios de réduction ont été utilisés pour élaborer des modèles de réponse écologique à l'altération du débit, pour évaluer la réponse des macro-invertébrés aquatiques à la réduction des débits. Par exemple, les modèles de réponse écologique à l'altération du débit indiquent que si les prélèvements d'eaux souterraines provoquent la diminution de l'écoulement annuel moyen de 1,1 m3/s à 0,6 m3/s, l'abondance des taxons intolérants pourrait être réduite de près de 20%. Ces résultats de la modélisation de la réponse écologique pourraient être utilisés par les professionnels des ressources pour évaluer des stratégies alternatives de gestion de l'eau afin de dé...

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Optimization of field and laboratory methods for benthic invertebrate biomonitoring

Cited by 7 publications

References 121 publications

Sensitivity of different taxonomic levels of soil Gamasina to land use and anthropogenic disturbances

Sensitivity of different taxonomic levels of soil Gamasina to land use and anthropogenic disturbances

Determining hydrologic factors that influence stream macroinvertebrate assemblages in the northeastern US

Effects of streamflow reductions on aquatic macroinvertebrates: linking groundwater withdrawals and assemblage response in southern New Jersey streams, USA

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