A Review of Sampling and Monitoring Methods for Beneficial Arthropods in Agroecosystems

McCravy, Kenneth W.

doi:10.3390/insects9040170

Cited by 109 publications

(100 citation statements)

References 162 publications

(206 reference statements)

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“…The employment of these techniques is still relatively new however, therefore our information and understanding regarding their mechanics is lacking (Elek et al 2018, Keram et al 2019. In order to assess the effects of artificial gap openings on forest ecosystems and on forest floor arthropods, ground-dwelling spiders are suitable study objects (Wise 1993, Horváth et al 2009, Elek et al 2016, 2018. Two of the most commonly used methods for studying this taxon are pitfall trapping and suction sampling (Samu & Sárospataki 1995, Mommertz et al 1996, Samu et al 1997, Woodcock 2005, Kádár & Samu 2006.…”

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confidence: 99%

“…Because of their relatively cheap maintenance and low labour requirements, pitfall traps have been used to collect epigeic arthropods since the early 1900s in many habitat types (e.g., Lang 2000, Zhao et al 2013, McCravy 2018, including forests and forest gaps. Pitfall trapping is a passive sampling technique, as is suction sampling, in that they do not use any attractant (e.g., Zou et al 2012, McCravy 2018. This method is considered to provide data on the degree of activity rather than actual population densities of the captured species, and tend to over-represent large-bodied species and slightly under-represent diurnal species.…”

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confidence: 99%

“…This method is considered to provide data on the degree of activity rather than actual population densities of the captured species, and tend to over-represent large-bodied species and slightly under-represent diurnal species. Furthermore, this trapping technique is sensitive to several external disturbance effects (e.g., Merrett & Snazell 1983, Topping & Sunderland 1992, Sunderland et al 1995, Hancock & Lang 2011, Zou et al 2011, McCravy 2018. Nevertheless, pitfall trapping tends to represent the highest percentage of the surveyed taxa, including rare species when compared to other sampling methods, making it almost essential for inventory studies (e.g., Churchill & Arthur 1999, Cardoso et al 2008, Sabu & Shiju 2010.…”

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confidence: 99%

“…In contrast to pitfall trapping, D-Vac suction sampling is considered to have relatively high cost and labour requirements, but it is far less sensitive to species activity and can provide a measure of arthropod density (McCravy 2018). On the other hand, it often under-represents large and heavy species, and species that frequently occur under the soil surface, vegetation or debris (Lang 2000, Elliott et al 2006, McCravy 2018. This sampling process causes more disturbances (Sunderland et al 1995).…”

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confidence: 99%

“…This sampling process causes more disturbances (Sunderland et al 1995). Finally, both methods are sensitive to undergrowth cover (Sunderland et al 1995, Zou et al 2012, McCravy 2018. Because of the reasons listed above, D-Vac suction is not as popular as pitfall trapping, but it is still widely used in entomological researches (Samu et al 1997, Elliott et al 2006.…”

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confidence: 99%

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Comparing pitfall trapping and suction sampling data collection for ground-dwelling spiders in artificial forest gaps

Bali¹,

Dániel²,

Tuba³

et al. 2019

Arachnologische Mitteilungen: Arachnology Letters

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mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Comparing pitfall trapping and suction sampling data collection for ground-dwelling spiders in artificial forest gaps

Bali¹,

Dániel²,

Tuba³

et al. 2019

Arachnologische Mitteilungen: Arachnology Letters

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Ecology of Eriogonum tiehmii, a rare soil specialist: Arthropod diversity, soil preferences, and demography

2022

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Soil specialists can have restricted distributions, and effective management in the face of land use change depends on a thorough understanding of the ecology of these unique plants. We investigated the ecology of Eriogonum tiehmii Reveal, a rare soil specialist, using pitfall traps, flower observations, and pollinator exclusion to assess arthropod communities in E. tiehmii habitat, the most common visitors to E. tiehmii flowers, and the importance of pollination for seed set. We collected soil from 21 occupied and unoccupied sites for analysis of physical and chemical characteristics, and conducted a greenhouse soil preference experiment to test how seeds and seedlings respond to soil variation. We also monitored tagged plants in extant populations, measuring survival, size, and reproductive output. Arthropod communities within and around E. tiehmii sites were abundant and diverse; each sample site contained numerous unique species, and there was high turnover in arthropod community composition over time. Open pollination significantly increased seed production, with beetles, wasps, and flies the most likely important pollinators.Reproductive output and size class distributions varied among wild populations, and soil properties differed between occupied and unoccupied sites. Occupied sites were, on average, lower in sulfur, zinc, potassium, and magnesium and, on average higher in boron, pH, and silt, among other differences, though there was high variation in these characteristics among sites.Seedlings demonstrated sensitivity to individual soil properties, and seedlings grown in soils from occupied sites had, on average, higher total biomass and higher root allocation than seedlings grown in soils from unoccupied sites. These preference tests suggest a "specialist" model of soil specialization rather than a "refuge" model, indicating that plants are not simply highly stress-tolerant, but are specifically adapted to their native soil types. While some unoccupied sites we tested were favorable for some life history stages, we did not identify unoccupied sites that could support both establishment and growth of E. tiehmii seedlings. Future work could consider the effects of biotic interactions such as plant competition and herbivores on plant growth, and employ

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Assessing flower‐visiting arthropod diversity in apple orchards through metabarcoding of environmental DNA from flowers and visual census

et al. 2022

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Arthropods are essential in maintaining healthy and productive agricultural ecosystems. Agricultural crops such as apples are typically pollinated by domesticated honey bees, but wild bees and other arthropod flower visitors also contribute to pollination. Flower visitors can also be natural enemies of crop‐pests or herbivores. Biodiversity is under pressure and knowledge of wildflower visitors is an important tool in designing orchards that can support high functional biodiversity. In our study, we assessed the diversity of arthropod flower visitors in four Danish apple orchards using both molecular and nonmolecular techniques to study arthropod communities in agricultural ecosystems. Arthropod DNA collected from apple flowers was analyzed using a DNA metabarcoding approach using the mitochondrial COI marker, while arthropod pollinators were recorded through visual assessment surveys. These complementary techniques resulted in a total of 19 arthropod taxa detected. Nonbee arthropods constituted a large proportion of arthropods detected by both methods (84%, 16 taxa). Metabarcoding detected 12 taxa and had 83% species resolution. Visual census recovered flower visiting groups to the order level (Coleoptera, Diptera, Hymenoptera and Lepidoptera) but not species level and also provided relative abundance data, which is not possible with molecular methods. We demonstrated that by utilizing both molecular and nonmolecular techniques to assess arthropod communities, we are able to obtain a broader overview of the arthropod fauna present. The methodology used and the outcome of this study can be used to inform and tailor suitable arthropod‐pest management practices in orchards to increase crop yield and maintain healthy agricultural systems.

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A Review of Sampling and Monitoring Methods for Beneficial Arthropods in Agroecosystems

Cited by 109 publications

References 162 publications

Comparing pitfall trapping and suction sampling data collection for ground-dwelling spiders in artificial forest gaps

Comparing pitfall trapping and suction sampling data collection for ground-dwelling spiders in artificial forest gaps

Ecology of Eriogonum tiehmii, a rare soil specialist: Arthropod diversity, soil preferences, and demography

Assessing flower‐visiting arthropod diversity in apple orchards through metabarcoding of environmental DNA from flowers and visual census

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