Species-habitat association of a deciduous broadleaved forest in the subtropical and tempe-rate transition zone

doi:10.13287/j.1001-9332.202108.009

Abstract

Abstract: The species-habitat association analysis facilitates a better understanding of species coexis-tence and community assembly. Here, all trees in a 25-hm² broadleaved deciduous forest plot in the Qinling Mountains of North-central China were classified into three life stages (i.e., seedling, sapling, and adult). The Torus-translation test was used to examine the species-habitat association. The results showed that the association of species with habitats varied across different species. Most species were significantly associated with high slopes, 95.7% of which showed negative association. 89.5% and 90.9% of tree species were negatively associated with low slopes and ridges, respectively. Most species had positive association with high valley, with only one negative association (0.03%). There were 80, 44 and 23 significant associations with habitats at seedling, sapling and adult stages, respectively, indicating that a greater dependence of seedlings on habitat. 38 species at seedling stage and 25 species at the sapling stage were associated with at least one habitat type, while only 17 species at the adult stage were significantly associated. The effects of habitat on species varied across life stages, showing a weaker species-habitat association at the later stage. Due to the specific environmental demands, most species showed different habitat preferences across life stages.

Key words: habitat association, climate transitional zone, topography, habitat preference, niche theory

ZHU Wen-ting, XIE Feng-lin, LI Tao, HE Nian-jun, ZHANG Ke-rong, ZHANG Quan-fa, DANG Hai-shan. Species-habitat association of a deciduous broadleaved forest in the subtropical and tempe-rate transition zone[J]. Chinese Journal of Applied Ecology, 2021, 32(8): 2755-2762.

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