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DOI | 10.1016/j.foreco.2019.117724 |
Landscape structure influences browsing on a keystone tree species in conservation areas | |
Komonen A.; Tuominen L.; Purhonen J.; Halme P. | |
发表日期 | 2020 |
ISSN | 0378-1127 |
卷号 | 457 |
英文摘要 | Aspen is a keystone species in boreal forests. The future of aspen in many conservation areas is threatened by ungulate browsing. Our aim was to study the effect of browsing on aspen regeneration and population structure in conservation areas in Central Finland, and the effect of surrounding landscape structure on browsing. Aspen density varied greatly among and within conservation areas. In about half of the conservation areas, middle-sized aspens were scarce or missing, which indicates heavy browsing in the recent past. In addition, the number of dead, large aspens in advanced decay stages were rare. Browsing pressure varied greatly among the areas, but on average, a bit more than half of the living aspens had been browsed. Landscape structure influenced browsing so that increasing proportion of farmland within 1 km and 3 km of the conservation areas decreased browsing pressure. The poor recruitment of aspen in many conservation areas jeopardizes the accumulation of large living and dead aspens. This means that many aspen-associated threatened species are in the risk of local extinction, unless aspen recruitment is enhanced by management. © 2019 Elsevier B.V. |
英文关键词 | Alces alces; Biodiversity; Boreal forest; Disturbance; Landscape; Populus tremula |
语种 | 英语 |
scopus关键词 | Arches; Biodiversity; Reforestation; Alces alces; Boreal forests; Disturbance; Landscape; Populus tremula; Conservation; biodiversity; boreal forest; browsing; conservation management; deciduous forest; disturbance; habitat conservation; keystone species; landscape ecology; landscape structure; population structure; protected area; regeneration; Accumulation; Biodiversity; Conservation; Populus Tremula; Pressure; Recruitment; Reforestation; Keski-Suomi; Alces alces; Populus; Populus tremula; Ungulata |
来源期刊 | Forest Ecology and Management
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/155594 |
作者单位 | University of Jyväskylä, Department of Biological and Environmental Science, School of Resource Wisdom, P.O. Box 35, FI-40014 University of Jyväskylä, Finland |
推荐引用方式 GB/T 7714 | Komonen A.,Tuominen L.,Purhonen J.,et al. Landscape structure influences browsing on a keystone tree species in conservation areas[J],2020,457. |
APA | Komonen A.,Tuominen L.,Purhonen J.,&Halme P..(2020).Landscape structure influences browsing on a keystone tree species in conservation areas.Forest Ecology and Management,457. |
MLA | Komonen A.,et al."Landscape structure influences browsing on a keystone tree species in conservation areas".Forest Ecology and Management 457(2020). |
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