Special Feature: “Temperate forests in Continental East Asia” (Eds. Hongyan Liu, Helge Bruelheide, Jörg Ewald & Milan Chytrý).
Special Feature: East Asian Forests
Contribution of environmental filtering and dispersal limitation to species turnover of temperate deciduous broad-leaved forests in China
Article first published online: 10 MAR 2014
© 2014 International Association for Vegetation Science
Applied Vegetation Science
How to Cite
Liu, Y., Tang, Z., Fang, J. (2014), Contribution of environmental filtering and dispersal limitation to species turnover of temperate deciduous broad-leaved forests in China. Applied Vegetation Science. doi: 10.1111/avsc.12101
- Article first published online: 10 MAR 2014
- Manuscript Accepted: 21 JAN 2014
- Manuscript Received: 19 APR 2013
- Natural Science Foundation of China. Grant Numbers: 31321061, 31170499
- Ministry of Science and Technology of China. Grant Number: 2011FY110300
- Altitudinal gradient;
- Dispersal limitation;
- Distance decay;
- Environmental divergence;
- Geographic distance;
- Niche differentiation;
- Species turnover
How and to what extent do environmental filtering and dispersal limitation affect species turnover among sites in the temperate deciduous broad-leaved forests of China? Do different life forms respond to environmental filtering and dispersal limitation in the same way?
Seventeen mountains (31°8′–44°22′N, to 104°42′–128°8′E) in China.
We measured the plant species composition of 495 plots. We calculated the Jaccard's similarity (SJac) of species composition, geographic distance (Dg) and environmental divergence (De) for each plot pair for trees, shrubs and herbs. Three plot pair groups were distinguished: (1) plot pairs with both plots from the same mountain; (2) plot pairs with two plots from different mountains but with a similar environment; (3) plot pairs with two plots from different mountains and with a heterogeneous environment. We analysed the relationship between SJac, Dg and De for all three groups, and performed partial redundancy analysis. We also calculated beta-diversity of mountains, and explored latitudinal and climatic patterns of beta-diversity.
SJac decreases significantly with both De and Dg for all three plot pair groups. Environmental and geographic variables together explain 13.8%, 11.6% and 11.1% of variance in species composition of trees, shrubs and herbs, respectively. For all life forms, environment explains more variance than geography, and environment and geography have strong co-varying effects. The beta-diversity for each mountain decreases with latitude, but increases with mean annual temperature (MAT).
Environmental filtering rather than dispersal limitation predominantly regulates patterns of species turnover in the temperate deciduous broad-leaved forests of China. Furthermore, the increases of beta-diversity along MAT also support the effects of environment on species turnover. These results indicate that environment might influence the distribution of most species in temperate forests of China. However, dispersal limitation still independently accounts for a small amount of variance in species turnover. We therefore conclude that environmental filtering and dispersal limitation have both combined and independent effects, but environmental filtering is more important in shaping the community assembly of temperate deciduous broad-leaved forests of China.