Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/1365-2664.12601 |
Recruitment of a keystone tree species must concurrently manage flooding and browsing | |
Horner, Gillis J.1; Cunningham, Shaun C.2,3; Thomson, James R.4; Baker, Patrick J.5; Mac Nally, Ralph3 | |
通讯作者 | Horner, Gillis J. |
来源期刊 | JOURNAL OF APPLIED ECOLOGY
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ISSN | 0021-8901 |
EISSN | 1365-2664 |
出版年 | 2016 |
卷号 | 53期号:3页码:944-952 |
英文摘要 | 1. Multiple pressures (land-use change, water extraction and climate change) interact to influence biodiversity and ecosystem processes, but direct evidence for interactions among multiple pressures is limited. Floodplain forests are an acute example of how interacting pressures (river regulation, water extraction, decreasing rainfall and mammal browsing) interact to degrade native ecosystems. 2. We conducted a 2-year field experiment to determine how flooding, browsing and sediment salinity interacted to determine in situ seedling survival and growth of the keystone floodplain tree species (Eucalyptus camaldulensis Dehnh.). On semi-arid floodplains of southern Australia, 1-year-old seedlings were planted on the banks of six ephemeral creeks, three of which were flooded with management flows before planting while the others remained dry. Four plots were established at each creek, two open to browsing and two fenced to exclude mammal herbivores. 3. Flooding had a strong positive effect on seedling survival and height, but browsing had strong negative effects. Sediment salinity (a covariate rather than a designed effect) had a weak negative effect on seedling survival and height. 4. The positive effects of flooding were largely offset by the negative interaction with browsing and, to a lesser extent, sediment salinity. 5. Although flooding has been restored to some degraded floodplain forests subjected to river regulation and a drying climate, the long-term success of such actions is likely to be undermined by persistent browsing. 6. Synthesis and applications. Management actions that focus on single pressures (e.g. infrequent flooding) and processes (e.g. mature tree survival) while ignoring other pressures are unlikely to sustain populations of keystone species, suggesting that complementary strategies (managed flooding with herbivore control) are necessary to sustain recruitment and, therefore, ensure the future health of these essential ecosystems. |
英文关键词 | browsing Eucalyptus camaldulensis flooding floodplain forests herbivory keystone tree species multiple pressures population viability recruitment river regulation |
类型 | Article |
语种 | 英语 |
国家 | Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000380065400034 |
WOS关键词 | FLOODPLAIN FORESTS ; CLIMATE-CHANGE ; SALT TOLERANCE ; RIVER ; VEGETATION ; GROWTH ; ECOSYSTEMS ; SURVIVAL ; MODEL ; UNDERSTOREY |
WOS类目 | Biodiversity Conservation ; Ecology |
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/2XILL650/193998 |
作者单位 | 1.Monash Univ, Sch Biol Sci, Clayton, Vic 3800, Australia; 2.Deakin Univ, Sch Life & Environm Sci, Ctr Integrat Ecol, Burwood, Vic 3125, Australia; 3.Univ Canberra, Inst Appl Ecol, Bruce, ACT 2617, Australia; 4.Arthur Rylah Inst, Victorian Dept Environm Land Water & Planning, Heidelberg, Vic 3084, Australia; 5.Univ Melbourne, Sch Ecosyst & Forest Sci, Richmond, Vic 3121, Australia |
推荐引用方式 GB/T 7714 | Horner, Gillis J.,Cunningham, Shaun C.,Thomson, James R.,et al. Recruitment of a keystone tree species must concurrently manage flooding and browsing[J],2016,53(3):944-952. |
APA | Horner, Gillis J.,Cunningham, Shaun C.,Thomson, James R.,Baker, Patrick J.,&Mac Nally, Ralph.(2016).Recruitment of a keystone tree species must concurrently manage flooding and browsing.JOURNAL OF APPLIED ECOLOGY,53(3),944-952. |
MLA | Horner, Gillis J.,et al."Recruitment of a keystone tree species must concurrently manage flooding and browsing".JOURNAL OF APPLIED ECOLOGY 53.3(2016):944-952. |
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