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95 results for “pitfall traps”
Figure 5 from: Matalin A, Makarov M (2011) Using demographic data to better interpret pitfall trap catches. ZooKeys 100: 223-254. https://doi.org/10.3897/zookeys.100.1530
Figure 5 - Seasonal variation in abundance curves and reproduction aspects in four resident carabid species coupled with abundance of a migrant-species Harpalus rufipes from reedbeds, combined data for 2006/07 (R and L right and left Y axis, respectively; N (ex.) – number of specimens).
Figure 1 from: Szinwelski N, Fialho V, Yotoko K, Seleme L, Sperber C (2012) Ethanol fuel improves arthropod capture in pitfall traps and preserves DNA. ZooKeys 196: 11-22. https://doi.org/10.3897/zookeys.196.3130
Figure 1 - Boxplot showing sampling efficiency of different kinds of pitfall traps' killing solution. Traps with Solution 1 (100% ethanol fuel) captured more species and individuals than Solution 2 (80% commercial alcohol (80°GL) + 10% glycerin (P.A) + 10% formaldehyde (P.A)) and Solution 3 (90% commercial alcohol (80°GL) + 10% glycerin (P.A)). A Total number of species per pitfalls' set. B Total number of individuals per pitfalls' set. Different lower case letters correspond to significant differences between killing solution levels, evaluated through contrast analyses.
Figure 2 from: Szinwelski N, Fialho V, Yotoko K, Seleme L, Sperber C (2012) Ethanol fuel improves arthropod capture in pitfall traps and preserves DNA. ZooKeys 196: 11-22. https://doi.org/10.3897/zookeys.196.3130
Figure 2 - Electrophoresis of all 24 analyzed individuals. M represents the lambda DNA marker (100 ng/ul) and F represents the control extraction made using fresh tissue. A) Lanes 01 – 06, individuals killed in C.A. (undiluted commercial alcohol), maintained in the killing solution for 48 hours and then transferred to closed vials containing C.A. (01 – 03) and E.F. (03 – 06) and maintained in these storage solutions for 30 days. Lanes 07 – 12, individuals killed in Solution 1 (= E.F.), maintained in the killing solution for 48 hours and transferred to C.A. (07 – 09) and E.F. (10 – 12) and maintained in these storage solutions for 30 days. B) Lanes 13 – 18, individuals killed in the Solution 2 and maintained in this solution for 24 hours. Lanes 19 – 24, individuals killed in Solution 3, maintained in this solution for 48 hours, than transferred to C.A. (19 – 21) and E.F. (22 – 24) and maintained in these solutions for 30 days. All DNA extractions where successful, but those of crickets killed in solution 2 (lanes 13 – 18).
Figure 4 from: Czechowski W, Rutkowski T, Stephan W, Vepsäläinen K (2016) Living beyond the limits of survival: wood ants trapped in a gigantic pitfall. Journal of Hymenoptera Research 51: 227-239. https://doi.org/10.3897/jhr.51.9096
Figure 4 - The mound of the free-living Formica polyctena colony built on the outlet of the ventilation pipe; the source of the bunker 'colony'. Photo taken on 24.07.2015 (Wojciech Stephan).
Figure 8 from: Czechowski W, Rutkowski T, Stephan W, Vepsäläinen K (2016) Living beyond the limits of survival: wood ants trapped in a gigantic pitfall. Journal of Hymenoptera Research 51: 227-239. https://doi.org/10.3897/jhr.51.9096
Figure 8 - View from the bunker corridor over the space with the Formica polyctena 'colony'; in the foreground, a vast ant 'cemetery'. Photo taken on 19.01.2016 after reopening the repaired mound for a second search of offspring (Wojciech Stephan).
Figure 7 from: Czechowski W, Rutkowski T, Stephan W, Vepsäläinen K (2016) Living beyond the limits of survival: wood ants trapped in a gigantic pitfall. Journal of Hymenoptera Research 51: 227-239. https://doi.org/10.3897/jhr.51.9096
Figure 7 - Formica polyctena workers active on their mound surface in winter, keeping nest entrances open. Photo taken on 11.01.2015 (Wojciech Stephan).
Figure 1 from: Czechowski W, Rutkowski T, Stephan W, Vepsäläinen K (2016) Living beyond the limits of survival: wood ants trapped in a gigantic pitfall. Journal of Hymenoptera Research 51: 227-239. https://doi.org/10.3897/jhr.51.9096
Figure 1 - Partly blocked entrance to the bunker system. In the background, pine-spruce forest overgrowing the hillock built to camouflage the structure. Photo taken on 17.07.2014 (Wojciech Stephan).
Figure 6 from: Czechowski W, Rutkowski T, Stephan W, Vepsäläinen K (2016) Living beyond the limits of survival: wood ants trapped in a gigantic pitfall. Journal of Hymenoptera Research 51: 227-239. https://doi.org/10.3897/jhr.51.9096
Figure 6 - The mound of Formica polyctena's bunker 'colony' in close-up. In the background, against the wall, an ant 'cemetery' is visible. Photo taken on 24.07.2015 (Wojciech Stephan).
Figure 5 from: Czechowski W, Rutkowski T, Stephan W, Vepsäläinen K (2016) Living beyond the limits of survival: wood ants trapped in a gigantic pitfall. Journal of Hymenoptera Research 51: 227-239. https://doi.org/10.3897/jhr.51.9096
Figure 5 - Bottom sight of the ventilation pipe outlet. Photo taken on 21.02.2016 (Wojciech Stephan).
Figure 2 from: Czechowski W, Rutkowski T, Stephan W, Vepsäläinen K (2016) Living beyond the limits of survival: wood ants trapped in a gigantic pitfall. Journal of Hymenoptera Research 51: 227-239. https://doi.org/10.3897/jhr.51.9096
Figure 2 - The earthen mound inhabited by the Formica polyctena 'colony' in the bunker. Photo taken on 11.01.2015 (Wojciech Stephan).
Figure 3 from: Czechowski W, Rutkowski T, Stephan W, Vepsäläinen K (2016) Living beyond the limits of survival: wood ants trapped in a gigantic pitfall. Journal of Hymenoptera Research 51: 227-239. https://doi.org/10.3897/jhr.51.9096
Figure 3 - The upper part of the bunker space with the Formica polyctena 'nest'. In the middle of the ceiling, the input of the ventilation pipe. Ants climbing walls (and hardly reaching the ceiling) en masse within and outside the room are visible (especially well on the door frame). Photo taken on 24.07.2015 (Wojciech Stephan).
Which pitfall traps and sampling effort to choose to evaluate cropping system effects on spider and carabid assemblages?
<p>Dataset and example of the script (R) used in the simulation approach.</p>
Fig. 3 in A Baited Time Sorting Pitfall Trap Allowing More Temporal Fidelity of Dung Beetle (Coleoptera: Scarabaeidae) Activity
Fig. 3. Diel activity of Onthophagus binodis (dashed line) and Labarrus lividus (solid line) individuals caught across multiple sites and multiple sampling opportunities.
Fig. 4. Violin plots for height experiment 1 in A Baited Time Sorting Pitfall Trap Allowing More Temporal Fidelity of Dung Beetle (Coleoptera: Scarabaeidae) Activity
Fig. 4. Violin plots for height experiment 1 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. 1. Pitfall traps. A in A Modified Pitfall Trap for Capturing Ground Beetles (Coleoptera: Carabidae)
Fig. 1. Pitfall traps. A) Traditional, B) Modified with a plastic funnel.
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