Freshwater Biology

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Attribute‐based classification of European hydrophytes and its relationship to habitat utilization
Freshwater Biology - Tập 43 Số 1 - Trang 43-74 - 2000
Nigel Willby, Vicky J. Abernethy, Benoît O. L. Demars
SUMMARYHere we classify selected European hydrophytes into ‘attribute groups’ based on the possession of homogenous sets of characteristics, and explore the correspondence between these attribute groups, or individual attributes, and habitat use.Non‐hiera...... hiện toàn bộ
Theoretical habitat templets, species traits, and species richness: aquatic macrophytes in the Upper Rhône River and its floodplain
Freshwater Biology - Tập 31 Số 3 - Trang 487-505 - 1994
Gudrun Bornette, Christophe Henry, MARIE‐HÉLÈNE BARRAT, Claude Amoros
SUMMARY The objective of this study, which is based on forty‐two species of hydrophytes and helophytes, is to investigate: (i) relationships among species traits; (ii) habitat utilization by species; (iii) the relationship between species traits and habitat utilization; (iv) trends in species traits in ...... hiện toàn bộ
The macrophytic vegetation of the River Tees in 1975: observed and predicted changes
Freshwater Biology - Tập 7 Số 1 - Trang 43-60 - 1977
Nigel Holmes, Brian A. Whitton
SUMMARY. An account is given of the distribution of macrophytes in the River Tees and its tributaries, north‐east England, together with a critical discussion of the problems involved in recording data in a form which can be used for monitoring long‐term changes of vegetation in rivers. Among the conventions and methods adopted in the present study are an attempt to...... hiện toàn bộ
The functional role of burrowing bivalves in freshwater ecosystems
Freshwater Biology - Tập 46 Số 11 - Trang 1431-1446 - 2001
Caryn C. Vaughn, Christine C. Hakenkamp
1. Freshwater systems are losing biodiversity at a rapid rate, yet we know little about the functional role of most of this biodiversity. The ecosystem roles of freshwater burrowing bivalves have been particularly understudied. Here we summarize what is known about the functional role of burrowing bivalves in the orders Unionoida and Veneroida in lakes and streams globally.... hiện toàn bộ
Metacommunity organisation, spatial extent and dispersal in aquatic systems: patterns, processes and prospects
Freshwater Biology - Tập 60 Số 5 - Trang 845-869 - 2015
Jani Heino, Adriano S. Melo, Tadeu Siqueira, Janne Soininen, Sebastian Valanko, Luis Maurício Bini
Summary Metacommunity ecology addresses the situation where sets of local communities are connected by the dispersal of a number of potentially interacting species. Aquatic systems (e.g. lentic versus lotic versus marine) differ from each other in connectivity and environmental heterogeneity, suggesting that metacommunity organi...... hiện toàn bộ
A fuzzy coding approach for the analysis of long‐term ecological data
Freshwater Biology - Tập 31 Số 3 - Trang 295-309 - 1994
François Chevenet, SYLVAIN DOLÉADEC, Daniel Chessel
SUMMARY We present an unconventional procedure (fuzzy coding) to structure biological and environmental information, which uses positive scores to describe the affinity of a species for different modalities (i.e. categories) of a given variable. Fuzzy coding is essential for the synthesis of long‐term e...... hiện toàn bộ
The effect of evapoconcentration on dissolved organic carbon concentration and quality in lakes of SW Greenland
Freshwater Biology - Tập 52 Số 2 - Trang 280-289 - 2007
N. John Anderson, Colin A. Stedmon
Summary1. Dissolved organic carbon (DOC) concentration was determined for a range of lakes of varying conductivity (30–4000 μS cm−1) in the low Arctic of SW Greenland. DOC concentration range from <1 to >100 mg C L−1, occasionally approaching 200 mg C L−1 in meromictic, ...... hiện toàn bộ
Spatial and temporal impacts of a diesel fuel spill on stream invertebrates
Freshwater Biology - Tập 46 Số 5 - Trang 693-704 - 2001
David A. Lytle, Barbara L. Peckarsky
1. We assessed the effects of a 26 500 L diesel fuel spill on the macroinvertebrate fauna of a small trout stream in central New York, U.S.A. To determine the spatial extent of the spill we sampled three locations (0.7, 5.0 and 11.8 km downstream of the spill), each containing a reference site (unaffected tributary) and an impact site (downstream of spill). Sampling was repeated four times...... hiện toàn bộ
Incorporating thermal regimes into environmental flows assessments: modifying dam operations to restore freshwater ecosystem integrity
Freshwater Biology - Tập 55 Số 1 - Trang 86-107 - 2010
Julian D. Olden, Robert J. Naiman
Summary1. Despite escalating conflict over fresh water, recent years have witnessed a growing realisation that human society must modify its behaviour to ensure long‐term ecological vitality of riverine ecosystems. In response, ecologists have been increasingly asked to guide instream flow management by providing ‘environmental flow’ prescriptions for sustaining th...... hiện toàn bộ
Co‐inertia analysis: an alternative method for studying species–environment relationships
Freshwater Biology - Tập 31 Số 3 - Trang 277-294 - 1994
Sylvain Dolédec, Daniel Chessel
SUMMARY Methods used for the study of species–environment relationships can be grouped into: (i) simple indirect and direct gradient analysis and multivariate direct gradient analysis (e.g. canonical correspondence analysis), all of which search for non‐symmetric patterns between environmental data sets...... hiện toàn bộ
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