Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1016/j.ecolind.2020.107212 |
| Does beta diversity predict ecosystem productivity better than species diversity? | |
| Omidipour, Reza; Tahmasebi, Pejman; Faizabadi, Mohsen Faal; Faramarzi, Marzban; Ebrahimi, Ataollah | |
| 通讯作者 | Ebrahimi, A (corresponding author), Shahrekord Univ, Fac Nat Resources & Earth Sci, Dept Rangeland & Watershed Management, Shahrekord 8818634141, Iran. |
| 来源期刊 | ECOLOGICAL INDICATORS
 |
| ISSN | 1470-160X |
| EISSN | 1872-7034 |
| 出版年 | 2021 |
| 卷号 | 122 |
| 英文摘要 | There is consensus that greater biodiversity is essential to maintain the ecosystem function and stability. Variation in spatial plant community heterogeneity (beta diversity) affects productivity and ecosystems function; however, relatively few studies have addressed how beta diversity and its components (i.e. species turnover and nestedness) may relate to ecosystems function. In this study, we assessed plant community diversity (richness and evenness) and spatial heterogeneity along a productivity gradient in different bioclimatic regions including desert-steppe, steppe, semi-steppe and Mediterranean rangelands in south west of Iran, and tested (1): how and to what extent the different components of plant diversity affect aboveground biomass (AGB; as ecosystem productivity) and (2): the mechanisms underlying the relationship between beta diversity and ecosystem productivity; i.e. niche complementary and selection effects. Sampling was executed in each bioclimatic region by choosing eight sites and estimating AGB of plant species in 2 x 2 m plots nested within 3 macro plots of 30 x 30 m. The results showed that AGB was significantly predicted by species richness; positively in desert-steppe, steppe and semi-steppe rangelands and negatively in Mediterranean rangeland. Furthermore, AGB was negatively predicted by evenness in desert-steppe and semi-steppe rangelands. There were significantly negative relationships between beta diversity and AGB in desert-steppe, steppe and semi-steppe rangelands, while, the significantly positive relationship was found for Mediterranean rangeland. The AGB was significantly and positively related to the turnover and nestedness components of beta diversity in Mediterranean rangeland. However, a negative relationship was found with turnover in desert-steppe and semi-steppe rangelands. Our results indicate that niche complementarity may play a critical role in providing and provision ecosystems productivity in steppe and Mediterranean rangelands, while, both selection effects and niche complementarity hypotheses could be verified in low-productive regions (desert-steppe and semi-steppe rangelands). Comparing the strength of species diversity with beta diversity in predicting ecosystems productivity across different bioclimatic regions, our results revealed that beta diversity predict ecosystems productivity more effectively and provide support for biodiversity-ecosystems function theories. |
| 英文关键词 | Biodiversity beta diversity Productivity gradient Rangeland management Niche complementarity Selection effects Turnover Nestedness |
| 类型 | Article |
| 语种 | 英语 |
| 开放获取类型 | gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000613220400008 |
| WOS关键词 | FUNCTIONAL IDENTITY ; ABOVEGROUND BIOMASS ; COMMUNITY EVENNESS ; PLANT DIVERSITY ; CARBON STORAGE ; BIODIVERSITY ; RICHNESS ; STABILITY ; FOREST ; COMPLEMENTARITY |
| WOS类目 | Biodiversity Conservation ; Environmental Sciences |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/347819 |
| 作者单位 | [Omidipour, Reza; Tahmasebi, Pejman; Faizabadi, Mohsen Faal; Ebrahimi, Ataollah] Shahrekord Univ, Fac Nat Resources & Earth Sci, Dept Rangeland & Watershed Management, Shahrekord 8818634141, Iran; [Faramarzi, Marzban] Ilam Univ, Fac Agr, Dept Rangeland & Watershed Management, Ilam 69315516, Iran |
| 推荐引用方式 GB/T 7714 | Omidipour, Reza,Tahmasebi, Pejman,Faizabadi, Mohsen Faal,et al. Does beta diversity predict ecosystem productivity better than species diversity?[J],2021,122. |
| APA | Omidipour, Reza,Tahmasebi, Pejman,Faizabadi, Mohsen Faal,Faramarzi, Marzban,&Ebrahimi, Ataollah.(2021).Does beta diversity predict ecosystem productivity better than species diversity?.ECOLOGICAL INDICATORS,122. |
| MLA | Omidipour, Reza,et al."Does beta diversity predict ecosystem productivity better than species diversity?".ECOLOGICAL INDICATORS 122(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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