Sampling of flower-visiting insects: Poor correspondence between the catches of colour pan-trap and sweep netting

Berglund, Hilda‐Linn; Milberg, Per

doi:10.14411/eje.2019.043

Cited by 8 publications

(9 citation statements)

References 29 publications

(35 reference statements)

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“…However, in the glade, the largest number of P. marmorata was obtained at heights from 2 to 6 m, with a maximum number at a height of 4 m. The larvae of this species develop in the hollows of dead deciduous trees [71,72]. Imagos are anthophiles and are often found on flowering plants and shrubs [73,74]. Apparently, the anthophilicity of this species is due to the high-height preference in open habitats.…”

Section: Discussionmentioning

confidence: 99%

Vertical Stratification and Seasonal Dynamics of Coleoptera in Open Biotopes of Forest Ecosystems (Centre of European Russia)

Ruchin

Egorov

2022

Forests

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There are few studies on the vertical distribution and seasonal activity of arthropods in open habitats (in glades) in temperate forests due to methodological problems associated with the arrangement of certain structures for trapping. However, glades in forests are places of significant biodiversity of native animals, which are attracted to such areas by the possibilities of nutrition, reproduction, and wintering. The research was carried out on the territory of the Republic of Mordovia (the center of the European part of Russia). Fermental traps (bait—fermenting beer with sugar) were used to collect Coleoptera. They were installed on a special structure at heights of 2, 4, 6, 8, and 10 m. The collections were carried out from May to October 2020 in a glade with an area of 0.93 hectares in a deciduous forest. At the end of the research, 745 specimens of 80 species were registered from 30 Coleoptera families. The greatest species diversity was recorded in Nitidulidae (11 species), Cerambycidae (10 species), Scarabaeidae (7 species), Elateridae, Coccinellidae, and Curculionidae (5 species each). The greatest species diversity (53 species) and numerical abundance were obtained at a height of 2 m, and the smallest one (16 species) at a height of 10 m. The largest differences in the Jaccard similarity index were obtained between samples from a height of 2 and 10 m. The maximum values of the Shannon index and the minimum values of the Simpson index were recorded at the height of 2 m. The most significant relative number of saproxylic species was obtained at a height of 4 m. The relative number of anthophilic species was minimal at a height of 10 m. The seasonal dynamics of Coleoptera abundance were the same at different heights and the highest abundance was observed in late May and early June. However, the seasonal dynamics were different for some Coleoptera species in the glade located and inside the forest. Our data confirm the relevance of sampling in open biotopes at different heights in the study of arthropod biodiversity.

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Section: Discussionmentioning

confidence: 99%

Vertical Stratification and Seasonal Dynamics of Coleoptera in Open Biotopes of Forest Ecosystems (Centre of European Russia)

Ruchin

Egorov

2022

Forests

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“…The copyright holder for this preprint this version posted October 4, 2022. ; https://doi.org/10.1101/2022.10.01.510429 doi: bioRxiv preprint captured at all three southern sites, on sandstone cliff bluffs. Overall, we captured relatively few large-bodied bees, and notably no bumble bees, during the study, but that is most likely a result of the bias of bee bowls to collect smaller bodied genera (Wilson et al 2008, Berglund and Milberg 2019, Portman et al 2020.…”

Section: Discussionmentioning

confidence: 99%

Characterizing insect communities within thin-soil environments

Manning

Perry

Bahlai

2022

Preprint

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Natural thin-soil environments are those which have little to no soil accumulation atop hard substrates. Many of these natural thin-soil environments, such as alvars, rocky lakeshores or glades, cliffs and cliff bluffs, and barrens, are found in the Great Lakes Region of North America. Due to their ubiquity and ecosystem services they provide, characterizing insects in sensitive environments such as these is important. This study monitored insects in nine thin-soil sites, within three regions, on a 630 km latitudinal gradient in the Southeastern Great Lakes Region of North America from June - August 2019. Over 22,000 insect specimens collected were identified to order or family, and bee specimens were identified to genus or species. Plants within meter-squared quadrats were identified to genus or species. We found that overall insect community composition and biodiversity characteristics were similar between the three regions examined. However, the southern region differed from the northern and central regions for abundance and evenness, and from the central region for richness. Bee identity was similar across all regions, finding no differences in biodiversity metrics and similar community composition, but with certain taxa unique to each region. Although all regions contained unique plant taxa, insect community characteristics were similar among them. This study provides taxonomic information about the insect, particularly bees, and plant communities in thin-soil environments in this region, which could support conservation and management efforts.

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“…Many previous authors have noted that the biodiversity trends observed in a monitoring scheme are highly sensitive to sampling methodology [26,40,[79][80][81][82][83][84]. For example, in a European bumble bee survey the three methods used all produced different estimates of the population [79].…”

Section: Discussionmentioning

confidence: 99%

“…Ultimately, biodiversity trends observed in any study are highly sensitive to sampling methodology (Berglund & Milberg, 2019; Brice et al, 2021; Gardiner et al, 2012; Joshi et al, 2015; O’Connor et al, 2019; Prendergast et al, 2020; Whitworth et al, 2017). For example, in a European bumble bee survey the three methods used all produced different estimates of the population (Wood et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

A novel method for monitoring ground-dwelling arthropods on hard substrates: characterizing arthropod biodiversity among survey methods

Manning

Bahlai

2021

Preprint

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All approaches to biodiversity monitoring have inherent biases in the taxa captured, yet, as environments, sampling goals, and conventions vary, it is not uncommon for sampling approaches to be customized to reflect the study objectives, optimizing findings to be locally relevant but at the cost of transferability. Here, we developed a calibration study to directly examine how researcher trap choice affects observations made in insect biodiversity sampling. Sampling efficiency of four types of traps: pitfalls, yellow ramp traps, a novel jar ramp trap, and yellow sticky cards, were compared with respect to an array of biodiversity metrics associated with the arthropods they captured. We found that trapping efficiency and functional groups of arthropods (flying versus ground-crawling) varied by trap type. Pitfalls and jar ramp traps performed similarly for all biodiversity metrics measured, suggesting that jar ramp traps provide a more comparable measurement of ground-crawling arthropod communities to pitfall sampling than the yellow ramp traps and should be considered when pitfall sampling cannot be used. This study illustrates the implications for biodiversity sampling of arthropods in environments with physical constraints on trapping, and the importance of directly comparing adapted methods to established sampling protocol. Future biodiversity monitoring schemes should conduct calibration experiments to provide important information on performance and potential limitations of sampling methodology.

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Sampling of flower-visiting insects: Poor correspondence between the catches of colour pan-trap and sweep netting

Cited by 8 publications

References 29 publications

Vertical Stratification and Seasonal Dynamics of Coleoptera in Open Biotopes of Forest Ecosystems (Centre of European Russia)

Vertical Stratification and Seasonal Dynamics of Coleoptera in Open Biotopes of Forest Ecosystems (Centre of European Russia)

Characterizing insect communities within thin-soil environments

A novel method for monitoring ground-dwelling arthropods on hard substrates: characterizing arthropod biodiversity among survey methods

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