Evaluating the efficiency of baited pitfall traps covered with mesh panels  for sampling dung beetles

Bui Van Bac

doi:10.55250/Jo.vnuf.9.1.2024.054-061

Abstract

Baited pitfall traps represent a widely utilized method for dung beetle sampling. The effectiveness of this approach can be influenced by various factors, such as the type of bait used, trap size, and modifications to trap components. An important challenge during trapping is the inadvertent capture of non-target animals (such as: frogs, lizards, snakes, small rodents, and spiders), a concern that becomes more pronounced if endangered species are involved. To address these issues, incorporating a mesh panel into pitfall traps can help prevent unwanted intrusions. In this study, we assess the efficiency of baited pitfall traps covered with 2 cm mesh panels (BPTMP) for sampling dung beetles in tropical karst ecosystems within the Huu Lien Nature Reserve (northern Vietnam), comparing them with typical baited pitfall traps (BPT). The result revealed no significant differences in the species composition of dung beetles between the two trap types. Although the abundance of large-bodied dung beetles was significantly lower in BPTMPs compared to trap BPTs, the overall abundance and diversity of dung beetles did not significantly differ between the two trap types. Therefore, we strongly recommend adopting this sampling technique in studying on the diversity of dung beetles.

References

. Nichols E., Larsen T., Spector S., Davis A. L., Escobar F., Favila M. & Network T. S. R. (2007). Global dung beetle response to tropical forest modification and fragmentation: a quantitative literature review and meta-analysis. Biological conservation. 137(1): 1-19.

. Gardner T. A., Hernández M. I., Barlow J. & Peres C. A. (2008). Understanding the biodiversity consequences of habitat change: the value of secondary and plantation forests for neotropical dung beetles. Journal of applied ecology. 45(3): 883-893.

. Woodcock B. A. (2005). Pitfall trapping in ecological studies. Insect sampling in forest ecosystems. 37-57.

. Santos S. A., Cabanas J. E. & Pereira J. A. (2007). Abundance and diversity of soil arthropods in olive grove ecosystem (Portugal): Effect of pitfall trap type. European Journal of Soil Biology. 43(2): 77-83.

. Jud P. & Schmidt‐Entling M. H. (2008). Fluid type, dilution, and bitter agent influence spider preservation in pitfall traps. Entomologia experimentalis et applicata. 129(3): 356-359.

. Knapp M. & Ruzicka J. (2012). The effect of pitfall trap construction and preservative on catch size, species richness and species composition of ground beetles (Coleoptera: Carabidae). European Journal of Entomology. 109(3): 419-426.

. Brown G. R. & Matthews I. M. (2016). A review of extensive variation in the design of pitfall traps and a proposal for a standard pitfall trap design for monitoring ground‐active arthropod biodiversity. Ecology and evolution. 6(12): 3953-3964.

. Buchholz S., Kreuels M., Kronshage A., Terlutter H. & Finch O. D. (2011). Bycatches of ecological field studies: bothersome or valuable?. Methods in Ecology and Evolution. 2(1): 99-102.

. Lange M., Gossner M. M. & Weisser W. W. (2011). Effect of pitfall trap type and diameter on vertebrate by‐catches and ground beetle (Coleoptera: Carabidae) and spider (Araneae) sampling. Methods in Ecology and Evolution. 2(2): 185-190.

. Anon (1990). Investment plan for Huu Lien Nature Reserve, Huu Lung district, Lang Son province. Lang Son: Lang Son Provincial People’s Committee.

. Tordoff A. W., Tran Q. B., Nguyen D. T. & Le M. H. (eds)., 2004. Sourcebook of existing and proposed protected areas in Vietnam. Second edition. Hanoi: BirdLife International in Indochina and the Ministry of Agriculture and Rural Development.

. Orlov N. L., Ryabov S. A., Nguyen T. T., Nguyen Q. T. & Ho T. C. (2008). A new species of Goniurosaurus (Sauria: Gekkota: Eublepharidae) from north Vietnam. Russian Journal of Herpetology. 15(3): 229-244.

. Lunde D. P., Nguyen T. S. & Musser G. G. (2007). A survey of small mammals from Huu Lien Nature, Lang Son Province, Vietnam. Mammal Study. 32: 155-168.

. Balthasar V. (1963). Monographie der Scarabaeidae und Aphodiidae der Palaearktischen und Orientalischen Region. Coleoptera: Lamellicornia. Band 1. Allgemeiner Teil, Systematischer Teil: 1. Scarabaeinae, 2. Coprinae (Pinotini, Coprini). Verlag der Tschechoslowakischen Akademie der Wissenschaften. Prag.

. Bui V. B., Dumack K. & Bonkowski M. (2018). Two new species and one new record for the genus Copris (Coleoptera: Scarabaeidae: Scarabaeinae) from Vietnam with a key to Vietnamese species. European Journal of Entomology. 115: 167-191.

. Bui V. B. & Bonkowski M. (2018). Synapsis puluongensis sp. nov. and redescription of S. horaki (Coleoptera: Scarabaeidae), with a key to Vietnamese species. Acta Entomologica Musei Nationalis Pragae. 58(2): 407-418.

. Ochi T. & Kon M. (2017). Notes on the coprophagous scarab-beetles (Coleoptera, Scarabaeidae) from Southeast Asia. XXVIII. A new genus and three new subgenera of the genus Parascatonomus. Giornale Italiano di Entomologia. 14: 775-792.

. Paulian R. (1945). Faune de l'Empire Français III. Coléoptère Scarabéides de l'Indochine. Première partie. Paris.

. Kabakov O. N. & Napolov A. (1999). Fauna and ecology of Lamellicornia of subfamily Scarabaeinae (Scarabaeidae, Coleoptera) of Vietnam and some parts of adjacent countries: South China, Laos and Thailand. Latvijas entomologs. 37: 58-96.

. Bui V. B., Ziegler T. & Bonkowski M. (2020). Morphological traits reflect dung beetle response to land use changes in tropical karst ecosystems of Vietnam. Ecological Indicators. 108(105697): 1-9.

. Hayes L., Mann D. J., Monastyrskii A. L. & Lewis O. T. (2009). Rapid assessments of tropical dung beetle and butterfly assemblages: contrasting trends along a forest disturbance gradient. Insect Conservation Diversity. 2: 194-203.

. Nelder J. A. & Wedderburn R. W. (1972). Generalized linear models. Journal of the Royal Statistical Society Series A: Statistics in Society. 135(3): 370-384.

. Davis A. J., Holloway J. D., Huijbregts H., Krikken J., Kirk‐Spriggs A. H. & Sutton S. L. (2001). Dung beetles as indicators of change in the forests of northern Borneo. Journal of applied ecology. 38(3): 593-616.

. Ong X. R., Hemprich‐Bennett D., Gray C. L., Kemp V., Chung A. Y. & Slade E. M. (2022). Trap type affects dung beetle taxonomic and functional diversity in Bornean tropical forests. Austral Ecology. 47(1): 68-78.

. Gray C. L., Slade E. M., Mann D. J. & Lewis O. T. (2014). Do riparian reserves support dung beetle biodiversity and ecosystem services in oil palm‐dominated tropical landscapes?. Ecology and evolution. 4(7): 1049-1060.

. Alonso L. E. & Larsen T. H. (Eds.). (2013). A Rapid Biological Assessment of the Upper Palumeu River Watershed (Grensgebergte and Kasikasima) of Southeastern Suriname. Conservation International. Arlington.