The macrophytic vegetation of the River Tees in 1975: observed and predicted changesFreshwater 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 ecosystemsFreshwater 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 prospectsFreshwater 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 dataFreshwater 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
Spatial and temporal impacts of a diesel fuel spill on stream invertebratesFreshwater 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
Co‐inertia analysis: an alternative method for studying species–environment relationshipsFreshwater 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