| Level of habitat fragmentation determines its non-linear relationships with plant species richness, frequency and density at desertified grasslands in Inner Mongolia, China | |
| Alternative Title | Level of habitat fragmentation determines its non-linear relationships with plant species richness,frequency and density at desertified grasslands in Inner Mongolia,China |
| Liu Zhimin1; Shou Wenkai1; Qian Jianqiang1; Wu Jing1; Alberto Busso Carlos3; Hou Xianzhang2 | |
| 2018 | |
| Source Publication | JOURNAL OF PLANT ECOLOGY
 |
| ISSN | 1752-9921 |
| Volume | 11Issue:6Pages:866-876 |
| Abstract | Aims |
| Other Abstract | 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 (500×500 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. |
| Keyword | EFFECTIVE MESH SIZE LANDSCAPE FRAGMENTATION FUNCTIONAL TRAITS DUNE FIELD DISTURBANCE DISPERSAL DIVERSITY RESPONSES INVASION COMMUNITIES density frequency functional group habitat fragmentation rare species species richness |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Natural Science Foundation of China] ; [Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China] |
| CSCD ID | CSCD:6406984 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/147348 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.中国科学院 2.中国科学院金属研究所 3.University Nacl Sur, CONICET, CERZOS, Dept Agron, RA-8000 Bahia Blanca, Buenos Aires, Argentina |
| Recommended Citation GB/T 7714 | Liu Zhimin,Shou Wenkai,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[J]. JOURNAL OF PLANT ECOLOGY,2018,11(6):866-876. |
| APA | Liu Zhimin,Shou Wenkai,Qian Jianqiang,Wu Jing,Alberto Busso Carlos,&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 | 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".JOURNAL OF PLANT ECOLOGY 11.6(2018):866-876. |
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