Bui Thanh Van, Vu Xuan Truong, Nguyen Van Quang, Bui Tuan Viet

Main Article Content

Abstract

Based on results of analyzing samples collected by the methods: on the ground bait trapping, subterranean bait trapping, direct sampling and pitfall trapping from July 2009 to December 2015 at 77 sampling plots of 21 districts in Hanoi, a total of 145 ant species belonging to 53 genera, 9 subfalilies were identified. The results of the study has added two genera (Brachymyrmex Mayr, 1868 and Formosimyrma Terayama, 2009), 42 species to Vietnam ant species composition list and added 65 species to the ant species list in Hanoi. Ant species colllected in Hanoi are classified into 9 functional groups: DD, OP, GM, CS, SC, SP, HCS, TCS and CCS. Of which, OP had the largest number of species (34 species), followed by CS (27 species), GM (26 species), SP (20 species), TCS (20 species), SC (14 species); CCS and DD groups have only one species. Opportunists-OP accounted for the highest proportion (51.7 ± 23.1%), followed by the Generalized Myrmicinae-GM (30.0 ± 21.1%), the other functional groups accounted for less than 10%. There is a statistically significant negative linear relationship between the proportion of GM and the proportion of OP in the study area. The proportion of GM tends to decrease from agricultural plots (not yet urbanized) to construction plots (being urbanized) and lowest in urban plots (urban residential plots and urban green spaces). Conversely, the proportion of OP tends to increase from agricultural plots to construction plots, and highest in urban plots. Analyzing the variation of functional groups in the urbanization in West of Hanoi shows that the degree of environmental disturbance (before, during or after construction) had a strong influence on the composition of functional groups, especially GM and OP. So we can look to the study to use ant functional groups as tools to assess the extent of human impact on the ecosystem.

Keywords: Formicidae, Hanoi, ant functional groups, urbanization

References

[1] http://www.antwiki.org (updated 10/5/2017).
[2] Bùi Tuấn Việt, Kết quả bước đầu nghiên cứu đa dạng kiến (Hymenoptera, Formicidae) ở khu vực phía Bắc Việt Nam, Những vấn đề nghiên cứu cơ bản trong khoa học sự sống (2003) 279.
[3] McKinney M. L., Urbanization, biodiversity, and conservation, BioScience 52 (2002) 883.
[4] McKinney M.L., Lockwood J.L., Biotic homogenization: a few inners replacing many losers in the next mass extinction, Trends in Ecology and Evolution 14 (1999) 450.
[5] Kaspari M. and Majer J.D., Using ants to monitor environmental change, Ants: standard methods for measuring and monitoring biodiversity (2000) 89.
[6] Bestelmeyer, B.T., Agosti, D., Alonso, L.E., Brandão, C.R.F., Brown Jr., W.L. Delabie, J.H.C. and Silvestre R., Field techniques for the study of ground-dwelling ants: An overview, description, and evaluation, Ants: standard methods for measuring and monitoring biodiversity (2000) 122.
[7] Alonso L.E., Agosti D., Biodiversity studies, monitoring and ants: An overview, Ants: standard methods for measuring and monitoring biodiversity (2000) 1.
[8] Andersen, A. N., A classification of Australian ant communities, based on functional groups which parallel plant life-forms in relation to stress and disturbance, Journal of Biogeography 22 (1995) 15.
[9] Bestelmeyer, B.T., Agosti, D, Alonso, L.E., Brandão, C.R.F., Brown Jr, W.L., Delabie, J.H.C., and Silvestre, R., Field Techniques for the Study of Ground-Dwelling Ants: An Overview, Description and Evaluation, Ants: Standard Methods for Measuring and Monitoring Biodiversity (2000) 122.
[10] Yamaguchi T. and Hasegawa M., An experiment on ant predation in soil using a new bait trap method, Ecological Research 11, 1 (1996) 11.
[11] Agosti, D. and Alonso L.E, The ALL Protocol: A Standard Protocol for the Collection of Ground- Dwelling Ants, Ants: Standard Methods for Measuring and Monitoring Biodiversity (2000) 204.
[12] Hölldobler, B. and Wilson, E. O., The ants, Harvard University Press, Massachusetts, 1990.
[13] Bolton, B., Identification guide to the ant genera of the World, Harvard University Press. Massachusetts, 1994.
[14] Hashimoto, Y., Identification guide to the ant genera of Borneo, Inventory and collection, Total protocol for understanding of biodiversity (2003) 89.
[15] Borowiec, M.L., Generic revision of the ant subfamily Dorylinae (Hymenoptera, Formicidae), ZooKeys 608 (2016) 1.
[16] Schmidt, C.A. and Shattuck, S.O., The higher classification of the ant subfamily Ponerinae (Hymenoptera: Formicidae), with a review of Ponerine ecology and behavior, Zootaxa 3817, 1 (2014) 1.
[17] Eguchi, K., Bui, T.V., Yamane, S., Generic Synopsis of the Formicidae of Vietnam (Insecta: Hymenoptera), Part I - Myrmicinae and Pseudomyrmecinae, Zootaxa 2878 (2011) 1.
[18] Eguchi, K., Bui, T.V., Yamane, S., Generic Synopsis of the Formicidae of Vietnam (Insecta: Hymenoptera), Part II—Cerapachyinae, Aenictinae, Dorylinae, Leptanillinae, Amblyoponinae, Ponerinae, Ectatomminae and Proceratiinae, Zootaxa 3860, 1 (2014) 1.
[19] Hooper-Bui, L.M., Appel A.G., and Rust, M.K., Preference of food particle size among several urban ant species, Journal of Economic Entomology 95, 6 (2002) 1222.
[20] Lattke, J. E., Revision of the New World species of the genus Leptogenys Roger (Insecta: Hymenoptera: Formicidae: Ponerinae), Arthropod Systematics and Phylogeny 69, 3 (2011) 127.
[21] https://www.antweb.org (updated 10/5/2017).
[22] Brown Jr, W.L., Diversity of ants, Ants: standard methods for measuring and monitoring biodiversity (2000) 45.