Funnel trap as a method for capture migrating bats in Pape, Latvia

Abstract Seed dispersal has key implications for community dynamics and restoration ecology. However, estimating seed rain (the number and diversity of seeds arriving in a given area) is challenging, and the lack of standardization in measurement prevents cross-site comparisons. Seed trap effectiveness and accuracy of seed sorting methods are key components of seed rain estimates in need of standardization. We propose and describe a standardized protocol for evaluating the effectiveness of two seed trap types (sticky and funnel traps) and the accuracy of a seed sorting method. We used widely available seeds (arugula, quinoa, sesame and sunflower) to produce a gradient of seed size, weight and colour. Proof-of-concept was tested in a tropical grassland, where traps were set for 30 days. Our results suggest that we underestimate dispersal of seeds with less than 2 mm width that can be easily mistaken for debris and soil particles or that fail to adhere to sticky traps. Seeds on sticky traps may be more vulnerable to removal by wind and rain, whereas seeds in funnel traps are more susceptible to decay. We found no evidence of observer bias on seed sorting for funnel trap samples. However, accuracy on seed sorting for funnel trap samples tended to decline for seeds with less than 2 mm width, suggesting a size-dependence in seed retrieval success. Our standardized protocol addressing trap effectiveness and seed sorting methods will increase the reliability of data obtained in seed rain studies and allow more reliable comparisons between datasets.

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Light Bait Improves Capture Success of Aquatic Funnel-Trap Sampling for Larval Amphibians

Southeastern Naturalist ◽

10.1656/058.011.0105 ◽

2012 ◽

Vol 11 (1) ◽

pp. 49-58 ◽

Cited By ~ 5

Author(s):

Stephen H. Bennett ◽

Jayme L. Waldron ◽

Shane M. Welch

Keyword(s):

Capture Success ◽

Larval Amphibians ◽

Funnel Trap

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Improving Ion Mobility Measurement Sensitivity by Utilizing Helium in an Ion Funnel Trap

Analytical Chemistry ◽

10.1021/ac404250z ◽

2014 ◽

Vol 86 (11) ◽

pp. 5295-5299 ◽

Cited By ~ 16

Author(s):

Yehia M. Ibrahim ◽

Sandilya V. B. Garimella ◽

Aleksey V. Tolmachev ◽

Erin S. Baker ◽

Richard D. Smith

Keyword(s):

Ion Mobility ◽

Measurement Sensitivity ◽

Funnel Trap ◽

Mobility Measurement ◽

Ion Funnel

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Regional and Temporal Characteristics of Aquatic Organism Communities in Rice Paddy Fields, using Submerged Funnel Trap

Environmental Biology Research ◽

10.11626/kjeb.2018.36.2.099 ◽

2018 ◽

Vol 36 (2) ◽

pp. 99-106

Author(s):

Sung-Soo Yoon ◽

Myung-Hyun Kim ◽

Jinu Eo ◽

Soon-Ik Kwon ◽

Hyung-Kyu Nam ◽

...

Keyword(s):

Aquatic Organism ◽

Rice Paddy ◽

Paddy Fields ◽

Temporal Characteristics ◽

Funnel Trap ◽

Rice Paddy Fields

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A funnel trap for capture of small arboreal reptiles

Amphibia-Reptilia ◽

10.1163/156853808785112039 ◽

2008 ◽

Vol 29 (3) ◽

pp. 413-423 ◽

Cited By ~ 3

Author(s):

Giles Hardy ◽

Patricia Fleming ◽

Michael Craig ◽

Christine Davis ◽

Andrew Grigg

Keyword(s):

Acoustic Cues ◽

Critical Factors ◽

Transparent Material ◽

Trap Design ◽

Drift Fence ◽

Funnel Trap

Abstract Small arboreal reptiles can be difficult to capture, except in traps, and the physical trap characteristics, drift-fence and bait are critical factors that can influence the efficacy of any trap. We conducted experiments on marbled geckoes (Christinus marmoratus, Gekkonidae) and wall skinks (Cryptoblepharus plagiocephalus, Scincidae) that examined bait preferences, attractiveness of different visual and acoustic cues and efficacy of different drift-fence materials to develop a trap for small arboreal reptiles. The experiments showed that both marbled geckos and wall skinks preferred crickets as bait, that wall skinks avoided darkness/cover and that both species had difficulty climbing flashing material covered in oil. This led us to develop an arboreal trap that was made from transparent material, used crickets as bait and had drift-fences constructed from flashing material. When used in the field, the final trap design was effective in capturing arboreal reptiles.

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Non-destructive tree-trunk funnel trap for capturing Hylobius warreni (Coleoptera: Curculionidae) ascending stems of trees

The Canadian Entomologist ◽

10.4039/n09-030 ◽

2009 ◽

Vol 141 (4) ◽

pp. 422-424 ◽

Cited By ~ 5

Author(s):

Niklas Björklund

Keyword(s):

Tree Trunk ◽

Mark Recapture ◽

Funnel Trap ◽

Non Destructive ◽

Root Collar

AbstractA simple and inexpensive non-destructive trap to catch insects as they ascend tree boles is described. The trap was tested in a capture–mark–recapture experiment on the Warren root collar weevil, Hylobius warreni Wood. A high percentage (77%) of marked H. warreni were recaptured at least once during a 12-day period and 54% were recaptured more than once, with one weevil recaptured eight times.

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Evaluation of Multiple-Funnel and Slot Traps for Collection of Southern Pine Bark Beetles and Predators

Journal of Entomological Science ◽

10.18474/0749-8004-35.1.77 ◽

2000 ◽

Vol 35 (1) ◽

pp. 77-82 ◽

Cited By ~ 7

Author(s):

Kenneth W. McCravy ◽

John T. Nowak ◽

G. Keith Douce ◽

C. Wayne Berisford

Keyword(s):

Bark Beetles ◽

Dendroctonus Frontalis ◽

Southern Pine Beetle ◽

Southern Pine ◽

Long Distance ◽

Large Numbers ◽

Baited Traps ◽

Pine Beetle ◽

Funnel Trap ◽

Pine Bark Beetles

Pheromone-baited traps are frequently used for research or in monitoring populations of bark beetles such as the southern pine beetle, Dendroctonus frontalis Zimmermann, and Ips spp. which are important pests of southern pines. We compared the effectiveness of two commercially available trap designs, the multiple-funnel trap and the slot trap, for collection of D. frontalis, three species of Ips, and two of their common predators. Slot traps captured greater numbers of bark beetles while multiple-funnel traps captured more predators. Multiple-funnel traps were judged to be easier to transport and check in the field. This study indicates that slot traps are preferable for monitoring southern bark beetles with the least disruption to natural enemy populations, while multiple-funnel traps are better for monitoring bark beetle/predator ratios. Due to ease of checking and handling, multiple-funnel traps are preferable for uses that involve large numbers of traps, long-distance manual hauling, or frequent relocation of traps.

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