Scale dependence shapes how plant traits differentially affect levels of pre- and post-dispersal seed predation in Scots pine
文献类型：期刊论文
| 作者 | Worthy, Fiona R.2; Hulme, Philip E.1 |
| 刊名 | EUROPEAN JOURNAL OF FOREST RESEARCH
 |
| 出版日期 | 2019-08-01 |
| 卷号 | 138期号:4页码:653-672 |
| 关键词 | Conifer Granivory Pinus sylvestris Native pinewood Seed fate Spatio-temporal variation |
| ISSN号 | 1612-4669 |
| DOI | 10.1007/s10342-019-01198-y |
| 通讯作者 | Worthy, Fiona R.(worthy@mail.kib.ac.cn) |
| 英文摘要 | To understand the demographic consequences of seed predation, it is essential to scale-up losses over space and time. We tested how individual tree characteristics, forest attributes, and the local environment affected rates of both pre- and post-dispersal seed predation in Scots pine Pinus sylvestris, in Scotland's ancient native pinewoods. The sampling strategy was hierarchical, allowing assessment of how the influence of these factors differed with spatial scale. This approach revealed that the fate of a tree's seeds depended on many factors, at multiple scales. Levels of seed predation were highly variable over space and time. Seed predation by local post-dispersal seed predators (invertebrates and small mammals) varied at the finest spatial scales, whereas mobile avian pre-dispersal seed predators discriminated among seeds at every spatial scale. Tree crown shape affected removal of seed by all seed predators; both crossbills Loxia spp. and generalist avian granivores selected trees with broad crowns. However, trees with narrow crowns were selected by red squirrels Sciurus vulgaris, and the associated tall understory vegetation supported the highest levels of post-dispersal seed predation. Seed chemistry was an effective seed defence that reduced seed loss to all seed predators. In contrast, increases in physical cone defence were ineffective at reducing seed loss and showed a potential trade-off with investment in seed viability. Large seeds carried a survival cost, being preferentially consumed by squirrels and post-dispersal seed predators. All post-dispersal seed predators consumed a higher proportion of seeds at the times and locations where seed fall was greatest. |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000475673000008 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/68114]  |
| 专题 | 昆明植物研究所_资源植物与生物技术所级重点实验室 |
| 通讯作者 | Worthy, Fiona R. |
| 作者单位 | 1.Lincoln Univ, Bioprotect Ctr, POB 85084, Canterbury, New Zealand 2.Kunming Inst Bot, Ctr Mt Ecosyst Studies, Kunming, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Worthy, Fiona R.,Hulme, Philip E.. Scale dependence shapes how plant traits differentially affect levels of pre- and post-dispersal seed predation in Scots pine[J]. EUROPEAN JOURNAL OF FOREST RESEARCH,2019,138(4):653-672. |
| APA | Worthy, Fiona R.,&Hulme, Philip E..(2019).Scale dependence shapes how plant traits differentially affect levels of pre- and post-dispersal seed predation in Scots pine.EUROPEAN JOURNAL OF FOREST RESEARCH,138(4),653-672. |
| MLA | Worthy, Fiona R.,et al."Scale dependence shapes how plant traits differentially affect levels of pre- and post-dispersal seed predation in Scots pine".EUROPEAN JOURNAL OF FOREST RESEARCH 138.4(2019):653-672. |
入库方式： OAI收割
来源：昆明植物研究所
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