Macroinvertebrate community responses to land use: a trait-based approach for freshwater biomonitoring in Mongolia

Author:

Yadamsuren Oyunchuluun,Morse John C.,Hayford Barbara,Gelhaus Jon K.,Adler Peter H.

Abstract

AbstractLand-use practices in Mongolia can lead to environmental degradation and consequently affect the structure and function of biological communities. The main aim of this study was to determine land-use effects on freshwater macroinvertebrate communities based on their response to grazing and mining, using a trait-based approach (TBA). The functional structure of macroinvertebrate communities was examined using 86 categories of 16 traits. A total of 13 physical and chemical variables were significantly different among the levels of land-use intensity. Significant declines in functional diversity were observed with increased land-use intensity. The community weighted mean of 19 trait categories for 11 traits varied significantly among different levels of land-use intensity. Traits were significantly explained by environmental variables across a land-use intensity gradient. Water temperature, gravel, nitrate, silt, and cobble were the main predictor variables and explained 28% of the total variance of the trait variation. The functional structure of the macroinvertebrate community was strongly related to environmental conditions. The TBA is an important method in assessing disturbance responses in freshwater communities of steppe and taiga regions, such as in Mongolia and other countries in Central Asia and will be useful in finding best management practices for conserving aquatic ecosystems.

Funder

National Science Foundation

Publisher

Springer Science and Business Media LLC

Subject

Aquatic Science

Reference101 articles.

1. Altanbagana, M. & T. Chuluun, 2010. Vulnerability assessment of Mongolian social-ecological systems. In Renchin, T. (eds), The Proceedings of the 4th international and national workshop: Applications of geo-informatics for natural resources and the environment. National University of Mongolia, Ulaanbaatar: 1–11.

2. Anderson, M. J., 2001. A new method for non-parametric multivariate analysis of variance. Austral Ecology 26: 32.

3. Bady, P., S. Dolédec, C. Fesl, S. Gayraud, M. Bacchi & F. Schöll, 2005. Use of invertebrate traits for the biomonitoring of European large rivers: the effects of sampling effort on genus richness and functional diversity. Freshwater Biology 50: 159–173.

4. Barbour, M. T., J. Gerritsen, B. Snyder & J. Stribling, 1999. Rapid Bioassessment Protocols for Use in Streams and Wadeable Rivers: Periphyton, Benthic Macroinvertebrates and Fish. US Environmental Protection Agency, Washington.

5. Belsky, A. J., A. Matzke & S. Uselman, 1999. Survey of livestock influences on stream and riparian ecosystems in the western United States. Journal of Soil and Water Conservation 54: 419–431.

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