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Insects caught in pitfall traps: Trophic Structure: Insect Species Diversity, Abundance and Body Size
The goal of this study was to examine the populations of insects in prairies and savannas. Most of the prairies had developed after being abandoned from agriculture, but none of the savannas had been cultivated. The history of burning varied between sites. The main sampling for this study was conducted in 1992 by the lead investigators: John Haarstad, Evan Siemann, and David Tilman. Insects were sampled via sweep-net sampling, pitfalls and ant scent plates throughout the growing season in each of 49 grassland fields and savannas. In total, 89,596 individuals of 1,167 species were captured and enumerated. Body size was measured for a subset of grasshoppers collected. In 2004, John Haarstad conducted two similar studies by identifying and enumerating all insects collected in sweepnet samples taken in old fields (prairies) as part of E014 grasshopper studies and from sweepnet samples taken in savannas.
FIGURE 4 in Review of the Ulopella leafhopper genus group (Auchenorrhyncha, Cicadellidae, Ulopinae) with description of a new genus and species collected from pitfall traps in Zambia
FIGURE 4. Ulopella group species: a–c, Aethiopulopa myron (holotype), a, dorsal habitus, b, lateral habitus, c, face; d–f, A. bambiensis (non-types), d, dorsal habitus, e, lateral habitus, f, face; g–i, Ulopella steeli (holotype), g, dorsal habitus, h, lateral habitus, i, face. All lateral images flipped from right side to left. Scale bar: 1mm. See Material and methods for details of imaged specimens.
FIGURE 3 in Review of the Ulopella leafhopper genus group (Auchenorrhyncha, Cicadellidae, Ulopinae) with description of a new genus and species collected from pitfall traps in Zambia
FIGURE 3. Ulopella group species: a–c, Delopa cornuta (a, holotype, b–c, allotype), a, dorsal habitus, b, lateral habitus (image flipped from right to left), c, face; d–f, Conlopa bredoni (paratype), d, dorsal habitus, e, lateral habitus, f, face; g–i, Aethiopulopa globula, (paratype), a, dorsal habitus, b, lateral habitus, c, face. Scale bar: 1mm. See Material and methods for details of imaged specimens.
FIGURE 3 in Two new planthopper species (Hemiptera, Fulgoroidea, Caliscelidae) collected in pitfall traps in Zambia
FIGURE 3. Calampocus zambiaensis sp. n. (male): A, head and thorax, lateral view, B, antenna; C, front leg, lateral view (AV = anterior-ventral margin, AD = anterior-dorsal margin); D, cross-section of front tibia (AV = anterior-ventral margin, AD = anterior-dorsal margin, PV = posterior-ventral margin, PD = posterior-dorsal margin); E, apex of first tarsomere pad, ventral view; F, first tarsomere pad, lateral view; G, hind tibia and tarsomeres, ventral view; H, style; I, genital capsule, lateral view; J, penis, connective and anal tube, lateral view, left side; K, pygofer and anal tube, dorsal view; L, penis, ventral view.
FIGURE 2 in Two new planthopper species (Hemiptera, Fulgoroidea, Caliscelidae) collected in pitfall traps in Zambia
FIGURE 2. Afronaso spinosa sp. n. (male): A, head and thorax, lateral view; B, antenna; C, front leg, lateral view (AV = anterior-ventral margin, AD = anterior-dorsal margin); D, cross-section of front tibia (AV = anterior-ventral margin, AD = anterior-dorsal margin, PV = posterior-ventral margin, PD = posterior-dorsal margin); E, anal tube, dorsal view; F, hind tibia and tarsomeres, ventral view; G, style, lateral view; H, genital capsule, lateral view; I, penis, connective and anal tube, lateral view, left side; J, penis, ventral view.
FIGURE 1 in Two new planthopper species (Hemiptera, Fulgoroidea, Caliscelidae) collected in pitfall traps in Zambia
FIGURE 1. Habitus of new Caliscelidae. A–C, Afronaso spinosa sp. n. (male): A, dorsal view; B, lateral view; C, frontal view. D-F, Calampocus zambiaensis sp. n. (male): D, dorsal view; E, frontal view; F, lateral view.
FIGURE 5 in Review of the Ulopella leafhopper genus group (Auchenorrhyncha, Cicadellidae, Ulopinae) with description of a new genus and species collected from pitfall traps in Zambia
FIGURE 5. Kivulopa hovana (holotype), external features and genitalia; a, dorsal habitus, Scale bar: 1mm., b, lateral habitus, c, face, d, distal segment of right subgenital plate and fused basal segments of right and left subgenital plates together with dorsal plate of same (arrowed), ventral view, e, right subgenital plate (arrow indicates dorsal plate of basal segment), lateral view, f, style, g, aedeagus lateral view, h, aedeagus ventral view, i, connective ventral view, j, connective left lateral view. See Material and methods for details of imaged specimen.
FIGURE 2 in Review of the Ulopella leafhopper genus group (Auchenorrhyncha, Cicadellidae, Ulopinae) with description of a new genus and species collected from pitfall traps in Zambia
FIGURE 2. Kafulopa bicolor, external features and genitalia: a, face; b, right fore leg, lateral view; c, right fore tibia, in cross section near apex; d, right hind femur (apex to top); e, right hind leg, dorsal view; f, right hind leg, ventral view; g, right hind tibia, in cross section at midlength; h–j, male genital capsule, h, lateral view, i, dorsal view, j, ventral view (arrow indicates fused basal lobes of subgenital plates); k, aedeagus, lateral view; l, apex of aedeagus, ventral view; m, second valvulae lateral view; n, first valvulae, lateral view (Abbreviations: AD: anterior dorsal, AV: anterior ventral, PD: posterior dorsal, PV: posterior ventral).
FIGURE 1 in Review of the Ulopella leafhopper genus group (Auchenorrhyncha, Cicadellidae, Ulopinae) with description of a new genus and species collected from pitfall traps in Zambia
FIGURE 1. Kafulopa bicolor: a, dorsal habitus (holotype) scale bar 1mm; b, lateral habitus (holotype); c, face (paratype), d, apex of female abdomen in ventral view (paratype).
Fig. 5 in A Modified Pitfall Trap for Capturing Ground Beetles (Coleoptera: Carabidae)
Fig. 5. Shannon-Wiener and Pielou indices for Carabidae captured in traditional and modified pitfall traps.
Fig. 3 in A Modified Pitfall Trap for Capturing Ground Beetles (Coleoptera: Carabidae)
Fig. 3. Domination structure of Carabidae captured in two pitfall trap types. A) Traditional pitfall traps, B) Modified pitfall traps.
Fig. 4 in A Modified Pitfall Trap for Capturing Ground Beetles (Coleoptera: Carabidae)
Fig. 4. Ecological and trophic structure of the carabid fauna as measured by traditional and modified pitfall traps.
Analyses of "Ramp traps versus pitfall traps for collecting epigeal arthropods: a case study in a coniferous forest in Southwest Finland"
<p>Analyses for <a href="https://doi.org/10.1080/14888386.2023.2294795" target="_blank" rel="noopener">our article</a> on the relative performance of pitfall traps and ramp traps in catching arthropods.</p> <p>Contains:</p> <ul> <li>The R code used to draw figures and test for differences between trap types.</li> <li>The data.</li> <li>The figures drawn by the code: <ul> <li>Barplots of every taxa that showed significant differences between trap types, sampling periods or sampling sites. Barplots show the number of individuals per trap day caught in each group of samples (bars) and in each sample (dots). A group of samples contains the three samples (from three traps) that came from the same trap type, sampling period and sampling site. Bars are sorted by trap type, period, or site (whichever was significant).</li> </ul> </li> </ul> <p>To run the code, you need <a href="https://www.r-project.org/">R</a>, the package mvabund (installation instructions in <em>analysis.r</em>), and also need to set the working directory to wherever the script is on your computer (see first line of code in <em>analysis.r</em>).</p>
Fig. 5. Violin plots for height experiment 2 in A Baited Time Sorting Pitfall Trap Allowing More Temporal Fidelity of Dung Beetle (Coleoptera: Scarabaeidae) Activity
Fig. 5. Violin plots for height experiment 2 comparing: A) Abundance per trap type, B) Species richness per trap type, C) Shannon index for each trap type, D) Pielou evenness per trap type.
Fig. 2 in A Baited Time Sorting Pitfall Trap Allowing More Temporal Fidelity of Dung Beetle (Coleoptera: Scarabaeidae) Activity
Fig. 2. The three trapping types in the field with muslin-wrapped cow dung baits. A) Ground pan trap, B) Raised pan trap, and C) Time sorting pitfall trap.
Fig. 1 in A Baited Time Sorting Pitfall Trap Allowing More Temporal Fidelity of Dung Beetle (Coleoptera: Scarabaeidae) Activity
Fig. 1. Components of the TSPT. A) Internal view of the electronics, B) Carousel with vials in the 20 slots (note that lids are normally off when trap operational), C) Marine plywood, funnel, fake turf, and wire mesh, which make up the top of the TSPT, and D) TSPT set up with fake turf covering marine plywood with funnel and metal mesh in place. For field deployment it is recommended to raise to mesh slightly, as seen here with the 3 pieces of scrap pallet wood (1.5 cm in height).
Figure 4 in Terrestrial macroinvertebrates captured with a baited ramp-pitfall trap from five limestone caves in North Alabama and Georgia (USA) and their association with soil organic matter
Figure 4. Regression analyses of species richness from the various distance intervals in Howard's Waterfall Cave, Georgia.
Figure 6 in Terrestrial macroinvertebrates captured with a baited ramp-pitfall trap from five limestone caves in North Alabama and Georgia (USA) and their association with soil organic matter
Figure 6. Regression analyses of total Collembola abundance from the various distance intervals in Howard's Waterfall Cave, Georgia.
Figure 3 in Terrestrial macroinvertebrates captured with a baited ramp-pitfall trap from five limestone caves in North Alabama and Georgia (USA) and their association with soil organic matter
Figure 3. Regression of total invertebrate abundance and % total organic matter (% TOM) from the various distance interval in Cave Springs Cave, Alabama.
Figure 1 in Terrestrial macroinvertebrates captured with a baited ramp-pitfall trap from five limestone caves in North Alabama and Georgia (USA) and their association with soil organic matter
Figure 1. Our ramp-pitfall trap without styrofoam plate and bait. Plastic container dimensions (width and height 18 cm), openings to container (width 8 cm, height 7 cm), ramps (8 cm, 19 cm, and slanted side 18 cm).
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OpenNeuro
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