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| DOI | 10.1007/s10980-024-01887-z |
| Genetic consequences of landscape features in two rear edge, highly fragmented metapopulations of a mediterranean conifer | |
| 发表日期 | 2024 |
| ISSN | 0921-2973 |
| EISSN | 1572-9761 |
| 起始页码 | 39 |
| 结束页码 | 4 |
| 卷号 | 39期号:4 |
| 英文摘要 | Context Habitat fragmentation is expected to erode genetic diversity, which instead needs to be preserved for promoting species adaptation to a changing climate. As this expectation has found mixed support in forest trees, consistent results on the genetic consequences of fragmentation requires adequately replicated experimental designs, as well as an explicit assessment of which landscape features, if any, could mitigate its detrimental effects.Objective Evaluating the role of several landscape attributes in buffering the detrimental effects of fragmentation in two metapopulations of silver fir.Methods We genotyped 904 silver fir (Abies alba Mill.) trees from 18 local populations forming two metapopulations comparable for size and extension in the Apennines, a Mediterranean mountain range. We identified the signatures left by the fragmentation process on the genetic features of silver fir local populations. After removing potentially confounding effects due to different evolutionary histories, we used a multivariate approach for testing the relative effect of demographic, geographic, environmental and topographic factors on genetic features of both metapopulations.Results We found comparable signals of the habitat fragmentation impact on the genetic diversity and structure of both investigated metapopulations. Fragmentation effects were less pronounced in the largest local populations (but not the least isolated), located on gentler slopes with higher soil water availability and lower heat exposure.Conclusions Our results suggest the existence of a set of demographic and environmental factors that could have coherently buffered the detrimental genetic effects of fragmentation in both metapopulations. These findings could be useful to plan landscape restoration for the evolutionary rescue of mixed forests that once characterized Mediterranean mountain ecosystems. |
| 英文关键词 | Habitat fragmentation; Genetic diversity; Landscape genetics; Marginal populations; Metapopulation ecology; Abies alba |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography ; Geology |
| WOS类目 | Ecology ; Geography, Physical ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:001199186300001 |
| 来源期刊 | LANDSCAPE ECOLOGY
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/300899 |
| 作者单位 | Consiglio Nazionale delle Ricerche (CNR); Istituto di Bioscienze e Biorisorse (IBBR-CNR); Marche Polytechnic University; University of Turin |
| 推荐引用方式 GB/T 7714 | . Genetic consequences of landscape features in two rear edge, highly fragmented metapopulations of a mediterranean conifer[J],2024,39(4). |
| APA | (2024).Genetic consequences of landscape features in two rear edge, highly fragmented metapopulations of a mediterranean conifer.LANDSCAPE ECOLOGY,39(4). |
| MLA | "Genetic consequences of landscape features in two rear edge, highly fragmented metapopulations of a mediterranean conifer".LANDSCAPE ECOLOGY 39.4(2024). |
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