Pitfall trap design affects the capture efficiency of harvestmen (Opiliones) and millipedes (Diplopoda)

Stašiov, Slavomír; Čiliak, Marek; Wiezik, Michal; Svitok, Marek; Wieziková, Adela; Diviaková, Andrea

doi:10.1002/ece3.7820

Cited by 7 publications

(9 citation statements)

References 48 publications

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“…The results show that larger traps (15 cm) captured more individuals than smaller traps (10 cm), which is consistent with the results of Ward et al 2001, Lange et al 2011and Stašiov et al 2021. Despite the positive effect of a larger trap diameter on the total catch, it may have the disadvantage of increasing the probability of catching small vertebrates (Stašiov et al, 2021). To overcome this disadvantage, we recommend using large funnel traps, each equipped with a cover, as the use of funnel and roof may reduce the likelihood of unwanted capture of small vertebrates.…”

Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 89%

“…Pitfall traps are inexpensive, easy to use and efficient, and they collect large samples suitable for statistical analyses (Spence & Niemelä, 1994). Pitfall traps operate continuously from installation to collection (Stašiov, et al 2021), which can be particularly useful when studying the numbers and activity of surface-dwelling invertebrates. Nevertheless, the efficiency of this sampling method for collecting scorpions and also effects of different pitfall trap designs on the number and species composition of the captured scorpions have received little attention hitherto.…”

Section: Introductionmentioning

confidence: 99%

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Effects of different pitfall trap designs on capture efficiency of scorpions (Arachnida, Scorpiones), towards an optimized trap

Bakhshi

Sadeghi

Daneshnia

et al. 2022

Preprint

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Pitfall trapping is one of the widely used methods in ecological studies to assess epigean arthropods’ diversity and density. Our work is the first study to evaluate the capture efficiency of different pitfall traps for collecting scorpions. We examined the impact of trap diameter, trap cover, and use of funnels, and designed eight different trap types by combining these factors. A total of 64 traps were tested in an arid plain in Khuzestan Province, southwest Iran, during winter and spring over a 24-day period, and a total of 772 scorpions were trapped. The results indicate that pitfall traps are most productive for capturing burrowing scorpions. In addition, most scorpions were captured with covered traps, which can be explained by the cryptic lifestyle of scorpions, which tend to use spaces under rocks and other objects for shelter or to search for their prey. It is also noted that larger traps catch more scorpions, and the use of funnels does not significantly affect the number of scorpions caught. However, using funnels is recommended because it can reduce the number of unwanted bycatch samples. Based on our results, an optimized trap design for collecting scorpions is proposed, namely a funnel trap with an opening diameter of ca. 15 cm equipped with a plastic cover.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of different pitfall trap designs on capture efficiency of scorpions (Arachnida, Scorpiones), towards an optimized trap

Bakhshi

Sadeghi

Daneshnia

et al. 2022

Preprint

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“… This study only addressed spring months, and arthropod dynamics most probably show seasonal variations. Arthropods were captured using pitfall traps and sweeping nets but different sample methods may capture different arthropods, e.g., [ 39 ]. We focused on the effects of local factors (i.e., habitats and plants within the habitats), but it is known that the effects of the surrounding landscape structure (i.e., the degree of simplification or heterogeneity/complexity) can dominate the functional community composition and even buffer local effects [ 40 ].…”

Section: Discussionmentioning

confidence: 99%

“…Arthropods were captured using pitfall traps and sweeping nets but different sample methods may capture different arthropods, e.g., [ 39 ].…”

Section: Discussionmentioning

confidence: 99%

Plant Functional Dispersion, Vulnerability and Originality Increase Arthropod Functions from a Protected Mountain Mediterranean Area in Spring

Calheiros-Nogueira

Aguiar

Villa

2023

Plants

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Plant diversity often contributes to the shape of arthropod communities, which in turn supply important ecosystem services. However, the current biodiversity loss scenario, particularly worrying for arthropods, constitutes a threat for sustainability. From a trait-based ecology approach, our goal was to evaluate the bottom-up relationships to obtain a better understanding of the conservation of the arthropod function within the ecosystem. Specifically, we aim: (i) to describe the plant taxonomic and functional diversity in spring within relevant habitats of a natural protected area from the Mediterranean basin; and (ii) to evaluate the response of the arthropod functional community to plants. Plants and arthropods were sampled and identified, taxonomic and functional indices calculated, and the plant–arthropod relationships analyzed. Generally, oak forests and scrublands showed a higher plant functional diversity while the plant taxonomic richness was higher in grasslands and chestnut orchards. The abundance of arthropod functional groups increased with the plant taxonomic diversity, functional dispersion, vulnerability and originality, suggesting that single traits (e.g., flower shape or color) may be more relevant for the arthropod function. Results indicate the functional vulnerability of seminatural habitats, the relevance of grasslands and chestnut orchards for arthropod functions and pave the way for further studies about plant–arthropod interactions from a trait-based ecology approach.

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Shooting area of infrared camera traps affects recorded taxonomic richness and abundance of ground‐dwelling invertebrates

Gao,

Sun,

Jiang

et al. 2024

Ecology and Evolution

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Ground‐dwelling invertebrates are vital for soil biodiversity and function maintenance. Contemporary biodiversity assessment necessitates novel and automatic monitoring methods because of the threat of sharp reductions in soil biodiversity in farmlands worldwide. Using infrared camera traps (ICTs) is an effective method for assessing richness and abundance of ground‐dwelling invertebrates. However, the influence that the shooting area of ICTs has on the diversity of ground‐dwelling invertebrates has not been strongly considered during survey design. In this study, data from six ICTs with two shooting areas (A1, 38.48 cm2; A2, 400 cm2) were used to investigate ground‐dwelling invertebrates in a farm in a city on the Eastern Coast of China from 20: 00 on July 31 to 00:00 on September 29, 2022. Over the course of 59 days and 1420 h, invertebrates within 9 taxa, 2447 individuals, and 112,909 ind./m2 were observed from 222,912 images. Our results show that ICTs with relatively large shooting areas recorded relatively high taxonomic richness and abundance of total ground‐dwelling invertebrates, relatively high abundance of the dominant taxon, and relatively high daily and hourly abundance of most taxa. The shooting areas of ICTs significantly affected the recorded taxonomic richness and abundance of ground‐dwelling invertebrates throughout the experimental period and at fine temporal resolutions. Overall, these results suggest that the shooting areas of ICTs should be considered when designing experiments, and ICTs with relatively large shooting areas are more favorable for monitoring the diversity of ground‐dwelling invertebrates. This study further provides an automatic tool and high‐quality data for biodiversity monitoring and protection in farmlands.

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Pitfall trap design affects the capture efficiency of harvestmen (Opiliones) and millipedes (Diplopoda)

Cited by 7 publications

References 48 publications

Effects of different pitfall trap designs on capture efficiency of scorpions (Arachnida, Scorpiones), towards an optimized trap

Effects of different pitfall trap designs on capture efficiency of scorpions (Arachnida, Scorpiones), towards an optimized trap

Plant Functional Dispersion, Vulnerability and Originality Increase Arthropod Functions from a Protected Mountain Mediterranean Area in Spring

Shooting area of infrared camera traps affects recorded taxonomic richness and abundance of ground‐dwelling invertebrates

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