Biomass estimation using a length-weight relationship in beetle larvae (Coleoptera: Aphodiidae, Histeridae, Hydrophilidae, Staphylinidae) obtained from cow dung

Mroczynski, R. P.; Daliga, Karol

doi:10.1515/pjen-2016-0024

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…Sabo et al (2002) observed that the accuracy of size-weight models for insects improves with increasing taxonomic specificity, while Gruner (2003) found that the inclusion of an additional width-parameter can enhance (dry) weight predictions for carabids. Mroczyński and Daliga (2016) used the differentiation of morphological types to improve size-weight models for beetle larvae. Consequently, different taxonomic groups in carabids (here subfamilies) could also have certain shape characteristics, which result in modifications to the general size-weight relationship.…”

Section: Resultsmentioning

confidence: 99%

How to estimate carabid biomass?—an evaluation of size-weight models for ground beetles (Coleoptera: Carabidae) and perspectives for further improvement

Weiss

Linde

2022

J Insect Conserv

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Biomass is an important metric for monitoring carabid populations and serves as an ecological indicator. Models that predict carabid weight based on body size represent a simple and straightforward method to estimate biomass and are therefore commonly used. However, such models are rarely evaluated against independent validation data. In this study, we evaluated the two widely used size-weight models by Szyszko (1983) and Booij et al. (1994) drawing on previously published independent data. Additionally, we developed and tested four new models to also evaluate the potential effect of taxonomic parameters; and compared model predictions with actual measurements of biomass using relative deviation graphs and observed versus predicted from regression. We show that the two models by Szyszko (1983) and Booij et al. (1994) contain systematic bias towards larger and smaller carabids, respectively, suggesting restricted applicability of such models. Additional taxonomic parameters improved weight predictions, indicating one possible solution to the issue of restricted applicability. We discuss further relevant limitations of size-weight models and their application and recommend a combined use of the models of Szyszko (1983) and Booij et al. (1994) for carabids ≥ 11.8 mm and < 11.8 mm, respectively.Implications for insect conservation: Size-weight models are a suitable and simple method to estimate the biomass of carabids and have great potential to be used in monitoring schemes, the investigation of long-term trends and ecological studies. It is, however, essential that researchers pay special attention to potential restrictions in their applicability and methodological limitations.

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Section: Resultsmentioning

confidence: 99%

How to estimate carabid biomass?—an evaluation of size-weight models for ground beetles (Coleoptera: Carabidae) and perspectives for further improvement

Weiss

Linde

2022

J Insect Conserv

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“…Although the use of linear body measurements of staphylinids as predictors of wing traits has not been explored to date, some studies have evaluated linear body measurements to predict biomass in rove beetle adults (Hódar 1996) and larvae (Mroczyński and Daliga 2016). Our goal was to evaluate the use of linear morphological traits of necrophilous rove beetle species to predict wing width, length, and area, through the fitting of regression models.…”

Section: Introductionmentioning

confidence: 99%

Predicting Wing Trait Gaps: The Case of Andean Rove Beetles (Coleoptera: Staphylinidae)

Méndez-Rojas

Cultid‐Medina

Escobar

2023

The Coleopterists Bulletin

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Comparative studies require understanding the dispersal and movement capacity of species. However, it is not often possible to obtain information on this key life-history attribute in insects. Rove beetles (Staphylinidae) are the second most abundant group of epigeal invertebrates, and little is known about their dispersal abilities in tropical regions. We explored the relationship between six linear morphological body-size traits and three wing measures from 48 necrophilous rove beetle species for fitting univariate linear regression models. Pronotal width was the more accurate morphological variable to predict the wing traits of necrophilous rove beetle species. Models of wing area were a better fit when data had been sorted according to subfamily. The models obtained can be used to estimate length, width, and area of the necrophilous staphylinid species' wings. Morphological traits are useful as a proxy for dispersal in comparative ecological and evolutionary studies.

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Biomass estimation using a length-weight relationship in beetle larvae (Coleoptera: Aphodiidae, Histeridae, Hydrophilidae, Staphylinidae) obtained from cow dung

Cited by 2 publications

References 5 publications

How to estimate carabid biomass?—an evaluation of size-weight models for ground beetles (Coleoptera: Carabidae) and perspectives for further improvement

How to estimate carabid biomass?—an evaluation of size-weight models for ground beetles (Coleoptera: Carabidae) and perspectives for further improvement

Predicting Wing Trait Gaps: The Case of Andean Rove Beetles (Coleoptera: Staphylinidae)

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