Diversity, composition and host-species relationships of epiphytic orchids and ferns in two forests in Nepal
文献类型：期刊论文
| 作者 | Yagya P. ADHIKARI; Anton FISCHER; Hagen S. FISCHER; Maan B. ROKAYA; Prakash BHATTARAI; Axel GRUPPE |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2017-06 |
| 卷号 | 14期号:6页码:1065-1075 |
| 关键词 | Environmental Factors Epiphytes Large Trees Indicator Species Multivariate And Univariate Analyses Permutations Tests |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-016-4194-x |
| 通讯作者 | Yagya P. ADHIKARI |
| 文献子类 | 期刊论文 |
| 英文摘要 | Epiphytic plant species are an important part of biological diversity. It is therefore essential to understand the distribution pattern and the factors influencing such patterns. The present study is aimed at observing the patterns of species richness, abundances and species composition of epiphytic orchids and ferns in two subtropical forests in Nepal. We also studied the relationship of host plants (Schima wallichii andQuercus lanata) and epiphyte species. Data were collected in Naudhara community forest (CF) and the national forest (NF) in Shivapuri Nagarjun National Park. The data were analyzed using univariate and multivariate tests. In total, we recorded 41 species of epiphytes (33 orchid and 8 fern species). Orchid species abundance is significantlyhigher in CF compared to NF. Orchid species richness and abundance increased with increasing southern aspect whereas it decreased with increasing canopy cover, and fern species richness increased with host bark roughness. Orchid abundance was positively correlated with increasing bark pH, stem size, tree age and tree height and negatively correlated with increasing steepness of the area. Likewise, fern abundances were high in places with high canopy cover, trees that were tall and big, but decreased with increasing altitude and southern aspect. The composition of the orchid and fern species was affected by altitude, aspect, canopy cover, DBH, number of forks and forest management types. We showed that the diversity of orchid and fern epiphytes is influenced by host characteristics as well as host types. The most important pre-requisite for a high epiphyte biodiversity is the presence of old respectively tall trees, independent of the recent protection status. This means: (i) for protection, e.g. in the frame of the national park declaration, such areas should be used which host such old tall trees; and (ii) also in managed forests and even in intensively used landscapes epiphytes can be protected by letting a certain number of trees be and by giving them space to grow old and tall. |
| 语种 | 英语 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/18727]  |
| 专题 | Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.6 |
| 推荐引用方式 GB/T 7714 | Yagya P. ADHIKARI,Anton FISCHER,Hagen S. FISCHER,et al. Diversity, composition and host-species relationships of epiphytic orchids and ferns in two forests in Nepal[J]. Journal of Mountain Science,2017,14(6):1065-1075. |
| APA | Yagya P. ADHIKARI,Anton FISCHER,Hagen S. FISCHER,Maan B. ROKAYA,Prakash BHATTARAI,&Axel GRUPPE.(2017).Diversity, composition and host-species relationships of epiphytic orchids and ferns in two forests in Nepal.Journal of Mountain Science,14(6),1065-1075. |
| MLA | Yagya P. ADHIKARI,et al."Diversity, composition and host-species relationships of epiphytic orchids and ferns in two forests in Nepal".Journal of Mountain Science 14.6(2017):1065-1075. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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