DOI: 10.1016/j.foreco.2016.09.004
Scopus记录号: 2-s2.0-84987941880
论文题名: Identity rather than richness drives local neighbourhood species composition effects on oak sapling growth in a young forest
作者: Dillen M. ; Verheyen K. ; Smit C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 380 起始页码: 274
结束页码: 284
语种: 英语
英文关键词: Forest
; Identity effect
; Powdery mildew
; Quercus
; Species richness
Scopus关键词: Biodiversity
; Forestry
; Fungi
; Rain
; Forest
; Identity effect
; Powdery mildew
; Quercus
; Species richness
; Composition effects
; biodiversity
; deciduous tree
; ecosystem function
; environmental conditions
; forest ecosystem
; fungal disease
; growth rate
; natural enemy
; pathogen
; sapling
; shading
; species richness
; Erysiphales
; Quercus
; Quercus petraea
; Quercus robur
英文摘要: In light of global biodiversity loss, the influence of species composition on ecosystem functioning has attracted increasing attention. However, questions remain whether neighbourhood species richness or identity is more important and what mechanisms drive these composition effects. We investigated the role of local species richness and identity on oak sapling growth in young forest stands, and attempted to link growth with two commonly expected mechanisms: oak powdery mildew (PM), a host-specific leaf pathogen, and degree of shading. Furthermore, we studied how such effects might interact with reduced rainfall. We established a reduced rainfall gradient on oak (Quercus) saplings planted within two sites of a young tree diversity experiment (FORBIO). We found no effect of species richness on growth, whereas presence of particular species had a significant impact. In one site, we found an identity effect on growth through negative effects of oak (Q. robur) presence, which was linked to increased PM infection severity. Such link was less clear in the other site, where the impact of PM and oak (Q. petraea) presence was lower and there was no relation between the two. Other identity effects were related to levels of shading, which were themselves influenced by fast early growth rates of the neighbouring trees. We found no consistent effects of reduced rainfall on growth. Host-mediated effects through oak PM and functional size-mediated effects through shading were the most important composition effects in our young forest experiment, with no support for species richness effects through local environmental conditions or natural enemies. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64692
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Forest & Nature Lab, Ghent University, Geraardsbergsesteenweg 267, Gontrode, Belgium; Conservation Ecology Group, Groningen Institute for Evolutionary Sciences (GELIFES), University of Groningen, Nijenborgh 7, AG Groningen, Netherlands
Recommended Citation:
Dillen M.,Verheyen K.,Smit C.. Identity rather than richness drives local neighbourhood species composition effects on oak sapling growth in a young forest[J]. Forest Ecology and Management,2016-01-01,380