Arid
DOI10.1007/s10750-014-2119-7
Spatial dissimilarities in plankton structure and function during flood pulses in a semi-arid floodplain wetland system
Kobayashi, Tsuyoshi1; Ralph, Timothy J.2; Ryder, Darren S.3; Hunter, Simon J.1; Shiel, Russell J.4; Segers, Hendrik5
通讯作者Kobayashi, Tsuyoshi
来源期刊HYDROBIOLOGIA
ISSN0018-8158
EISSN1573-5117
出版年2015
卷号747期号:1页码:19-31
英文摘要

Floodplain wetlands in semi-arid regions have intricate channel-floodplain networks with highly variable and unpredictable wet and dry phases related to changes in hydrology and geomorphology. We tested the hypothesis that the presence of different hydro-geomorphic habitats in those systems drives structural and functional differences in aquatic communities. To test this hypothesis, we examined the densities and species composition (structural variables), and primary productivity and respiration (functional variables) of plankton communities, and water chemistry in three spatially explicit channel, floodout and lagoon habitat types inundated by environmental water releases in the Macquarie Marshes, semi-arid Australia. Significant differences were recorded among the community-level structural and functional variables among the three habitats. Greater densities of phytoplankton, zooplankton and planktonic bacteria were observed in a hydrologically isolated floodplain lagoon. The lagoon habitat also had greater primary productivity of phytoplankton and planktonic respiration compared with the channel and floodout. Our results suggest that water release to meet environmental flow requirements can be an important driver of planktonic diversity and functional responses in semi-arid wetland systems by inundating diverse, hydro-geomorphically distinct habitats.


英文关键词Environmental water Zooplankton Phytoplankton Bacterioplankton Primary production Respiration
类型Article
语种英语
国家Australia ; Belgium
收录类别SCI-E
WOS记录号WOS:000349967400002
WOS关键词COMMUNITY STRUCTURE ; ENVIRONMENTAL FLOWS ; HYDROLOGICAL CONNECTIVITY ; RIVER SYSTEM ; WATER ; INUNDATION ; BIODIVERSITY ; DIVERSITY ; AUSTRALIA ; PATTERNS
WOS类目Marine & Freshwater Biology
WOS研究方向Marine & Freshwater Biology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/187689
作者单位1.Off Environm & Heritage NSW, Div Sci, Sydney South, NSW 1232, Australia;
2.Macquarie Univ, Dept Geog & Environm, Sydney, NSW 2109, Australia;
3.Univ New England, Armidale, NSW 2351, Australia;
4.Univ Adelaide, Adelaide, SA 5005, Australia;
5.Royal Belgian Inst Nat Sci, B-1000 Brussels, Belgium
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Kobayashi, Tsuyoshi,Ralph, Timothy J.,Ryder, Darren S.,et al. Spatial dissimilarities in plankton structure and function during flood pulses in a semi-arid floodplain wetland system[J],2015,747(1):19-31.
APA Kobayashi, Tsuyoshi,Ralph, Timothy J.,Ryder, Darren S.,Hunter, Simon J.,Shiel, Russell J.,&Segers, Hendrik.(2015).Spatial dissimilarities in plankton structure and function during flood pulses in a semi-arid floodplain wetland system.HYDROBIOLOGIA,747(1),19-31.
MLA Kobayashi, Tsuyoshi,et al."Spatial dissimilarities in plankton structure and function during flood pulses in a semi-arid floodplain wetland system".HYDROBIOLOGIA 747.1(2015):19-31.
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