It’s a matter of design—how pitfall trap design affects trap samples and possible predictions

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641 days ago
@DanesMoss 100 but across 20 grasslands in 4 sites! (roughly 3-5 per grassland) They are made of rigid PVC foam - inspired by this paper which found they had huge effects in increasing the species richness of ground beetles! https://t.co/0ZotimqQcb
Comparison between pitfall trap types https://t.co/nkUWxeIfUT via @PeerJLife
1359 days ago
... in my thesis, I assessed if and how different pitfall trap types affect trap catches and resulting predictions … 2/6 #phdlife #phdchat #agroecology https://t.co/B10tb55lNj
RT @thePeerJ: It’s a matter of design—how pitfall trap design affects trap samples and possible predictions https://t.co/A8UQAv93uL https:/…
2428 days ago
RT @thePeerJ: It’s a matter of design—how pitfall trap design affects trap samples and possible predictions https://t.co/A8UQAv93uL https:/…
It’s a matter of design—how pitfall trap design affects trap samples and possible predictions https://t.co/A8UQAv93uL https://t.co/D7xDd2Pyif
2428 days ago
New comparison of four different pitfall trap designs in @thePeerJ https://t.co/0vuPKc7Cyq
2429 days ago
RT @fboetzl: My latest article has been published today in @thePeerJ https://t.co/gKlnV9LVKU #AgriculturalScience #ConservationBiology #Eco…
RT @fboetzl: My latest article has been published today in @thePeerJ https://t.co/gKlnV9LVKU #AgriculturalScience #ConservationBiology #Eco…
RT @fboetzl: My latest article has been published today in @thePeerJ https://t.co/gKlnV9LVKU #AgriculturalScience #ConservationBiology #Eco…
2430 days ago
RT @fboetzl: My latest article has been published today in @thePeerJ https://t.co/gKlnV9LVKU #AgriculturalScience #ConservationBiology #Eco…
2430 days ago
My latest article has been published today in @thePeerJ https://t.co/gKlnV9LVKU #AgriculturalScience #ConservationBiology #Ecology #Entomology #Carabids #TeamBeetle #Agroecology
Biodiversity and Conservation

Main article text

 

Introduction

Materials and Methods

Study design

  1. Conventional simple pitfall traps (Fig. 1A);

  2. Pitfall traps with a squared extended PVC rim plate screwed on top of the glass jar used as pitfall trap for avoidance of digging in effects and easier exchange (10 × 10 cm2; diameter 7 cm; Fig. 1B);

  3. V-shaped guidance barrier pitfall traps using two 75 cm long metal barriers (height: 7 cm, angle: 90°, proposed by Smith (1976); Fig. 1C);

  4. X-shaped guidance barrier pitfall traps using four 75 cm long metal barriers (height: 7 cm angle: 90°, proposed by Morrill, Lester & Wrona (1990); Fig. 1D).

Data collection

Statistical analyses

Results

Discussion

Conclusions

Supplemental Information

Activity densities of staphylinid beetles and spiders.

site = study sites.

type: A = customary, B = plastic rim, C = V shaped guidance barrier, D = X shaped guidance barrier.

DOI: 10.7717/peerj.5078/supp-1

Carabid species richness and activity densities.

site = study sites.

type: A = customary, B = plastic rim, C = V shaped guidance barrier, D = X shaped guidance barrier.

DOI: 10.7717/peerj.5078/supp-2

Additional Information and Declarations

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Fabian A. Boetzl analyzed the data, contributed reagents/materials/analysis tools, prepared figures and/or tables, authored or reviewed drafts of the paper, approved the final draft.

Elena Ries conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, authored or reviewed drafts of the paper, approved the final draft.

Gudrun Schneider conceived and designed the experiments, contributed reagents/materials/analysis tools, authored or reviewed drafts of the paper, approved the final draft.

Jochen Krauss conceived and designed the experiments, contributed reagents/materials/analysis tools, authored or reviewed drafts of the paper, approved the final draft.

Data Availability

The following information was supplied regarding data availability:

The raw data are provided in the Supplemental Files.

Funding

Fabian A. Boetzl was supported by a grant of the German Excellence Initiative to the Graduate School of Life Sciences, University of Würzburg. This publication was funded by the German Research Foundation (DFG) and the University of Wuerzburg in the funding programme Open Access Publishing. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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