3e6a9ffd-59f2-48ea-840b-1582dc6c1e3d English ISO/IEC 8859-1 (also known as Latin 1) dataset dataset NERC EDS Environmental Information Data Centre Lancaster Environment Centre, Library Avenue, Bailrigg Lancaster LA1 4AP UK info@eidc.ac.uk https://eidc.ac.uk/ EIDC website The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences. information pointOfContact 2025-11-13T16:15:26 UK GEMINI 2.3 OSGB 1936 / British National Grid Macroinvertebrate leaf decomposers in response to organic matter addition to streams in the Welsh uplands (2013) 2017-04-21 publication 2013-03-31 creation https://catalogue.ceh.ac.uk/id/3e6a9ffd-59f2-48ea-840b-1582dc6c1e3d 10.5285/3e6a9ffd-59f2-48ea-840b-1582dc6c1e3d doi: Durance, I., Feeley, H.B., Perkins, D.M., Pye, M.C., Gutierrez-Canovas, C., Ormerod, S.J., Woodward, G. (2017). Macroinvertebrate leaf decomposers in response to organic matter addition to streams in the Welsh uplands (2013). NERC Environmental Information Data Centre 10.5285/3e6a9ffd-59f2-48ea-840b-1582dc6c1e3d These data are macroinvertebrate composition and abundance in eight Welsh upland rivers with contrasting land-use, moorland and exotic conifer, in response to riparian deciduous leaf addition. Eight sampling reaches were chosen at two sites, Llyn Brianne (4 reaches) and Plynlimon (4 reaches). The experiment consisted of adding deciduous leaves to half of the reaches whilst the other half were maintained as control (no addition). Nylon mesh bags containing deciduous leaves were fixed in both experimental and control reaches to estimate leaf decomposition rates. The macroinvertebrate composition of the nylon mesh bags was surveyed in January 2013 and again in March 2013 in each sampling reach. The main goal of this survey was to examine how aquatic biodiversity responds to leaf addition in moorland and conifer forested rivers. Dr Isabelle Durance was responsible for organising the surveys, Dr Hugh Feeley, Dr Dan Perkins and Marian Pye were in charge of collecting, processing and sorting the invertebrate samples. The work was carried out under Diversity in Upland Rivers for Ecosystem Service Sustainability (DURESS) project (Grant reference NERC NE/J014818/1). DURESS was a project funded by the Natural Environment Research Council (NERC) Biodiversity and Ecosystem Service Sustainability (BESS) programme Full details about this dataset can be found at https://doi.org/10.5285/3e6a9ffd-59f2-48ea-840b-1582dc6c1e3d Durance, I. Cardiff University durance@cardiff.ac.uk https://orcid.org/0000-0002-4138-3349 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Feeley, H.B. Cardiff University hughfeeley@gmail.com https://orcid.org/0000-0003-0386-0586 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Perkins, D.M. Imperial College London daniel.perkins@roehampton.ac.uk author Pye, M.C. Cardiff University m.pye@bangor.ac.uk author Gutierrez-Canovas, C. Cardiff University cayeguti@um.es https://orcid.org/0000-0002-6785-4049 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Ormerod, S.J. Cardiff University ormerod@cardiff.ac.uk https://orcid.org/0000-0002-8174-302X ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Woodward, G. Imperial College London woodward@imperial.ac.uk author Durance, I. Cardiff University Durance@cardiff.ac.uk pointOfContact Durance, I. Cardiff University durance@cardiff.ac.uk principalInvestigator NERC Environmental Information Data Centre info@eidc.ac.uk publisher NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian notPlanned Environmental Monitoring Facilities theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication land use acidity aquatic animal invertebrate biological diversity benthic ecosystem GEMET - Concepts, version 4.1.3 2019-01-28 creation Wales GeoNames 2006-01-01 creation Plynlimon Llyn Brianne aquatic invertebrates benthic community otherRestrictions no limitations otherRestrictions This resource is made available under the terms of the Open Government Licence otherRestrictions © Cardiff University otherRestrictions © Imperial College London otherRestrictions If you reuse this data, you should cite: Durance, I., Feeley, H.B., Perkins, D.M., Pye, M.C., Gutierrez-Canovas, C., Ormerod, S.J., Woodward, G. (2017). Macroinvertebrate leaf decomposers in response to organic matter addition to streams in the Welsh uplands (2013). NERC Environmental Information Data Centre https://doi.org/10.5285/3e6a9ffd-59f2-48ea-840b-1582dc6c1e3d textTable 1 English utf8 environment biota -3.785 -3.641 52.107 52.518 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/data/3e6a9ffd-59f2-48ea-840b-1582dc6c1e3d Download the data Download a copy of this data download https://data-package.ceh.ac.uk/sd/3e6a9ffd-59f2-48ea-840b-1582dc6c1e3d.zip Supporting information Supporting information available to assist in re-use of this dataset information dataset dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 Each stream was divided into an upstream reference zone and a downstream experimental zone. Deciduous leaves were added directly to the stream and by fixing 'Onion bags' of leaves to the stream bed and bank. In early November 2012, 48 replicate litter bags (24 per reference zone and 24 per experimental zone) of two mesh types, fine and coarse filled with air dried deciduous leaves were secured in pairs to randomly distributed metal poles each of the study streams. The mesh bags were then covered with cobbles to facilitate biological colonisation. At the end of the 'before' treatment half the litter bags or 6 fine and 6 coarse mesh litter bags were removed gently from both the reference and experimental study zones within each stream. At the same time 6 new fine mesh and 6 new coarse mesh litter bags were added to each pole to measure the decomposition during the 'after' manipulation period. These bags were left until the end the experimental period. At this point all of the remaining litter bags were removed. Directly upon collection, all litter bags were preserved in 70 per cent ethanol on site, within individual clear polystyrene bags, marked with an identifying code and transported back to the laboratory for processing. Once in the laboratory the leaf material from each litter bag was rinsed carefully under tap water under a fine sieve and air dried at room temperature. All macroinvertebrates were separated from the contents of each litter bag, and identified to species. Data was recorded onto an Excel spreadsheet. Data was exported from the Excel spreadsheet to a comma separated value file for ingestion into the Environmental Information Data Centre (EIDC).