Inferring ecological explanations for biogeographic boundaries of parapatric Asian mountain frogs
文献类型：期刊论文
| 作者 | Hu, Junhua1,2; Jiang, Jianping1 |
| 刊名 | BMC ECOLOGY
 |
| 出版日期 | 2019-02-02 |
| 卷号 | 18页码:3 |
| 关键词 | Amphibians Contact zone Ecological niche models Ecological barrier Interspecific competition Niche conservatism Niche overlap Qinling Mountains |
| ISSN号 | 1472-6785 |
| DOI | 10.1186/s12898-018-0160-5 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Background: Identifying and understanding the mechanisms that shape barriers to dispersal and resulting bio-geographic boundaries has been a longstanding, yet challenging, goal in ecology, evolution and biogeography. Characterized by stable, adjacent ranges, without any intervening physical barriers, and limited, if any, range overlap in a narrow contact zone, parapatric species are an interesting system for studying biogeographic boundaries. The geographic ranges of two parapatric frog species, Feirana quadranus and F. taihangnica, meet in a contact zone within the Qinling Mountains, an important watershed for East Asia. To identify possible ecological determinants of the parapatric range boundaries for two closely related frog species, we quantified the extent of their niche differentiation in both geographical and environmental space combining ecological niche models with an ordination technique. We tested two alternative null hypotheses (sharp environmental gradients versus a ribbon of unsuitable habitat dividing two highly suitable regions) for biogeographic boundaries, against the null expectation that environmental variation across a given boundary is no greater than expected by chance. Results: We found that the niches of these two parapatric species are more similar than expected by chance, but not equivalent. No sharp environmental gradient was found, while a ribbon of unsuitable habitat did act as a barrier for F. quadranus, but not for F. taihangnica. Conclusions: Integrating our findings with historical biogeographic information, our results suggest that at a contact zone, environmental tolerance restricted F. quadranus from dispersing further north, while interspecific competition most likely prevented the southward expansion of F. taihangnica. This study highlights the importance of both climate and competition in exploring ecological explanations for parapatric range boundaries between ecologically similar frog species, in particular under the effects of changing climate. |
| 学科主题 | Environment ; Ecology |
| URL标识 | 查看原文 |
| WOS关键词 | RANGE LIMITS ; CLIMATE-CHANGE ; GEOGRAPHIC DISTRIBUTIONS ; SPECIES DISTRIBUTIONS ; NICHE CONSERVATISM ; QINLING MOUNTAINS ; AMPHIBIA ANURA ; EVOLUTION ; PERSPECTIVES ; DIVERGENCE |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000424365400001 |
| 出版者 | BIOMED CENTRAL LTD |
| 源URL | [http://210.75.237.14/handle/351003/30335]  |
| 专题 | 食品安全与环境治理领域_中国科学院环境与应用微生物重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China 2.China West Normal Univ, Minist Educ, Key Lab Southwest China Wildlife Resource Conserv, Nanchong 637009, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Hu, Junhua,Jiang, Jianping. Inferring ecological explanations for biogeographic boundaries of parapatric Asian mountain frogs[J]. BMC ECOLOGY,2019,18:3. |
| APA | Hu, Junhua,&Jiang, Jianping.(2019).Inferring ecological explanations for biogeographic boundaries of parapatric Asian mountain frogs.BMC ECOLOGY,18,3. |
| MLA | Hu, Junhua,et al."Inferring ecological explanations for biogeographic boundaries of parapatric Asian mountain frogs".BMC ECOLOGY 18(2019):3. |
入库方式： OAI收割
来源：成都生物研究所
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