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Duan, Renyan
- Habitat-Dependent Forest Structure and Species Distributions in Two Deciduous Broadleaved Forests
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1 School of Life Science, Anqing Normal University, the Province Key Laboratory of the Biodiversity and Ecological Conservation in Southwest Anhui, Anqing 246133, CN
1 School of Life Science, Anqing Normal University, the Province Key Laboratory of the Biodiversity and Ecological Conservation in Southwest Anhui, Anqing 246133, CN
Source
Nature Environment and Pollution Technology, Vol 15, No 2 (2016), Pagination: 555-558Abstract
Forest structure and species distribution patterns were compared among four topographic habitats in two fully mapped 1-ha plots, named Diaoguanjing and Anjiping, on Daieshan Mountain in China. In Diaoguanjing plot, mean DBH was lower and Fisher's alpha, stem density and the number of species was higher in large versus small habitats. While in Anjiping plot, mean DBH was lower and Fisher's alpha and stem density were higher from high to lower elevation communities. Only 20 out of 78 species were either positively or negatively associated with at least one habitat type in Diaoguanjing, while 33 of 82 species in Anjiping showed habitat associations. A Chi-squared test revealed a greater number of species-habitat associations in Anjiping versus Diaoguanjing (P<0.05). Species-habitat associations were also relatively more frequent in mature forests of both plots (P<0.05). These results suggest that habitat area and forest maturity should be considered in explaining the processes driving species-habitat associations.Keywords
Forest Structure, Species Distribution, Habitat Associations, Niche-Aassembly, Dabieshan Mountain.Full Text
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- The Species Diversity and Patch Characteristics in Subtropical Evergreen and Deciduous Broad-Leaved Mixed Forest
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Authors
Affiliations
1 School of Life Science, Anqing Normal University, Anqing, Anhui 246011, CN
1 School of Life Science, Anqing Normal University, Anqing, Anhui 246011, CN
Source
Nature Environment and Pollution Technology, Vol 13, No 4 (2014), Pagination: 801-806Abstract
Forest communities are composed of different developmental types (gap patch (G), building patch (B), mature patch (M) and degenerate patch (D). The mean basal area, mean volume of each individual, mean DBH, standing volume, and mean height, all significantly increased along the process of forest cycle (G-B-M-D) (p<0.05). Different sized individuals and different functional groups only appeared in specific patch types. Bigger individuals mainly occurred in the late phase (M and D). Generalist species (GES) mainly existed in the G, while infrequent species (INF) and fern mainly appeared in the M. β diversity index of non-adjacent patch phases was higher than that of the two adjacent patch phases, and in the G, species richness and diversity were the highest among four different patches (G, B, M and D). A possible mechanism that could explain the diversity maintenance in subtropical evergreen and deciduous broad-leaved mixed forest was put forward.Keywords
Patch Type, Species Diversity, Forest Cycle, β Diversity.Full Text