DOI: 10.1016/j.foreco.2014.09.013
Scopus记录号: 2-s2.0-84908246272
论文题名: The effects of eucalypt plantations on plant litter decomposition and macroinvertebrate communities in Iberian streams
作者: Ferreira V. ; Larrañaga A. ; Gulis V. ; Basaguren A. ; Elosegi A. ; Graça M.A.S. ; Pozo J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 335 起始页码: 129
结束页码: 138
语种: 英语
英文关键词: Ecosystem functioning
; Eucalyptus globulus
; Forest change
; Litter breakdown
; Litter quality
; Shredders
Scopus关键词: Ecosystem functioning
; Eucalyptus globulus
; Forest change
; Litter breakdown
; Litter quality
; Shredders
; benthos
; colonization
; community structure
; deciduous forest
; decomposition
; ecosystem function
; evergreen tree
; invasive species
; litter
; macroinvertebrate
; native species
; tree planting
; vegetation structure
; Iberian Peninsula
; Portugal
; Eucalyptus globulus
英文摘要: Eucalypt plantations cover over 1.5 million ha in the Iberian Peninsula. The effects of the replacement of native deciduous forests by exotic plantations on stream communities and litter decomposition, a key ecosystem process in forest streams, are poorly understood. We compared microbially driven and total (microbes + invertebrates) decomposition of alder and oak leaf litter (high and low quality resource, respectively) as well as macroinvertebrate communities associated with decomposing litter and in the benthos, in five streams flowing through native deciduous broad-leaved forests and five streams flowing through eucalypt plantations in central Portugal and northern Spain (20 streams total). Total decomposition rate of alder leaf litter was slower in eucalypt than in deciduous streams, which was attributed to lower macroinvertebrate (and also shredder) colonization. No major effects of eucalypt plantations were found on macroinvertebrate colonization and total decomposition of oak litter, likely due to the low contribution of invertebrates to the decomposition of nutrient-poor litter. Microbially driven litter decomposition was generally not affected by forest change, likely due to high functional redundancy among microbes. Eucalypt streams had fewer invertebrates in Portugal than in Spain, which might be attributed to summer droughts in Portugal and the absence of deciduous riparian corridors in eucalypt plantations. In northern Spain, the relatively wet climate allows streams to flow year-round and eucalypt plantations have riparian deciduous trees that mitigate the effects of plantations. This study highlights the need to consider regional differences in climate, native vegetation, and the importance of macroinvertebrates, when assessing the effects of plantations on stream ecosystem processes such as carbon cycling. It also suggests that preservation of native riparian corridors, especially in drier areas, where the native vegetation provides high quality litter to the streams, and where invertebrates play an important role in aquatic processes, may mitigate the effects of plantations on stream communities and processes. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65656
Appears in Collections: 影响、适应和脆弱性
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作者单位: IMAR-Institute of Marine Research and MARE-Marine and Environmental Sciences Center, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal; Department of Plant Biology and Ecology, Faculty of Science and Technology, University of The Basque Country, P.O. Box 644, Bilbao, Spain; Department of Biology, Coastal Carolina University, P.O. Box 261954, Conway, SC, United States
Recommended Citation:
Ferreira V.,Larrañaga A.,Gulis V.,et al. The effects of eucalypt plantations on plant litter decomposition and macroinvertebrate communities in Iberian streams[J]. Forest Ecology and Management,2015-01-01,335