Level of habitat fragmentation determines its non-linear relationships with plant species richness, frequency and density at desertified grasslands in Inner Mongolia, China
文献类型：期刊论文
| 作者 | Qian, Jianqiang2; Wu, Jing1,2; Liu, Zhimin2; Alberto Busso, Carlos3; Shou, Wenkai2; Hou, Xianzhang1 |
| 刊名 | JOURNAL OF PLANT ECOLOGY
 |
| 出版日期 | 2018-12-01 |
| 卷号 | 11期号:6页码:866-876 |
| 关键词 | density frequency functional group habitat fragmentation rare species species richness |
| ISSN号 | 1752-9921 |
| DOI | 10.1093/jpe/rtx050 |
| 英文摘要 | Aims This study aimed to examine the changes in plant species richness, frequency and density along a habitat fragmentation gradient (with varied degrees of habitat fragmentation [DHFs]) in a desertified grassland of Horqin Sandy Land, northeastern Inner Mongolia, China. Methods In this study, six landscape plots (500 x 500 m each) along a habitat fragmentation gradient were established. A new fragmentation index was formulated to study the effects of habitat fragmentation on biodiversity indices (species richness, frequency and density). Regression analyses (linear- or non-linear regression) were conducted to assess the changes in species richness, frequency and density along the habitat fragmentation gradient at plant community, functional group and species scales, respectively. Important Findings There was a non-linear relationship (following a quadratic function) between total species richness and the DHF. Total species richness reached its peak when the DHF was 0.2, beyond which species richness decreased along the fragmentation gradient. Plant functional groups showed their specific responses to habitat fragmentation, and some non-linear relationships and thresholds existed. The relative richness of rare species also showed a non-linear response to habitat fragmentation, with the threshold being DHF = 0.6. Species became rarer (both some common species and rare species) with the intensifying habitat fragmentation. Our study demonstrates the importance of the non-linear relationships and plant functional groups in exploring the effects of habitat fragmentation on biodiversity and implementing effective biological conservation in sand dunes. |
| 资助项目 | National Natural Science Foundation of China[31600443] ; National Natural Science Foundation of China[41501573] ; Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000456053600007 |
| 出版者 | OXFORD UNIV PRESS |
| 源URL | [http://210.72.129.5/handle/321005/123890]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Wu, Jing |
| 作者单位 | 1.Liaoning Forestry Vocat Tech Coll, Fac Forestry, 186 Fengyang Rd, Shenyang 110164, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Univ Nacl Sur, CONICET, CERZOS, Dept Agron, RA-8000 Bahia Blanca, Buenos Aires, Argentina |
| 推荐引用方式 GB/T 7714 | Qian, Jianqiang,Wu, Jing,Liu, Zhimin,et al. Level of habitat fragmentation determines its non-linear relationships with plant species richness, frequency and density at desertified grasslands in Inner Mongolia, China[J]. JOURNAL OF PLANT ECOLOGY,2018,11(6):866-876. |
| APA | Qian, Jianqiang,Wu, Jing,Liu, Zhimin,Alberto Busso, Carlos,Shou, Wenkai,&Hou, Xianzhang.(2018).Level of habitat fragmentation determines its non-linear relationships with plant species richness, frequency and density at desertified grasslands in Inner Mongolia, China.JOURNAL OF PLANT ECOLOGY,11(6),866-876. |
| MLA | Qian, Jianqiang,et al."Level of habitat fragmentation determines its non-linear relationships with plant species richness, frequency and density at desertified grasslands in Inner Mongolia, China".JOURNAL OF PLANT ECOLOGY 11.6(2018):866-876. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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