| vegan: Community Ecology Package J Oksanen, FG Blanchet, R Kindt, P Legendre, P Minchin, B O’Hara, ... R package version, 1.8-6, 0 | 18687* | |
| vegan: Community Ecology Package J Oksanen, R Kindt, P Legendre, B O’Hara, GL Simpson, MHH Stevens, ... | 18435* | 2009 |
| vegan: community ecology package J Oksanen, FG Blanchet, R Kindt, P Legendre, PR Minchin, RB O’Hara, ... | 15849* | |
| Assessing eutrophication and reference conditions for Scottish freshwater lochs using subfossil diatoms H Bennion, J Fluin, GL Simpson Journal of Applied Ecology 41 (1), 124-138, 2004 | 199 | 2004 |
| Looking forward through the past: identification of 50 priority research questions in palaeoecology AWR Seddon, AW Mackay, AG Baker, HJB Birks, E Breman, CE Buck, ... Journal of Ecology 102 (1), 256-267, 2014 | 151 | 2014 |
| Defining reference conditions and restoration targets for lake ecosystems using palaeolimnology: a synthesis H Bennion, RW Battarbee, CD Sayer, GL Simpson, TA Davidson Journal of Paleolimnology 45 (4), 533-544, 2011 | 137 | 2011 |
| Paleolimnological evidence of the effects on lakes of energy and mass transfer from climate and humans PR Leavitt, SC Fritz, NJ Anderson, PA Baker, T Blenckner, L Bunting, ... Limnology and Oceanography 54 (6part2), 2330-2348, 2009 | 123 | 2009 |
| Analogue methods in palaeoecology: using the analogue package GL Simpson Journal of Statistical Software 22 (2), 1-29, 2007 | 106 | 2007 |
| Analogue: analogue and weighted averaging methods for palaeoecology GL Simpson, J Oksanen R package, 2011 | 87* | 2011 |
| Combining limnological and palaeolimnological data to disentangle the effects of nutrient pollution and climate change on lake ecosystems: problems and potential RW Battarbee, NJ Anderson, H Bennion, GL Simpson Freshwater biology 57 (10), 2091-2106, 2012 | 81 | 2012 |
| Climate change and the future of freshwater biodiversity in Europe: a primer for policy-makers B Moss, D Hering, AJ Green, A Aidoud, E Becares, M Beklioglu, ... Freshwater Reviews 2 (2), 103-131, 2009 | 76 | 2009 |
| TBT causes regime shift in shallow lakes CD Sayer, DJ Hoare, GL Simpson, ACG Henderson, ER Liptrot, ... Environmental Science & Technology 40 (17), 5269-5275, 2006 | 74 | 2006 |
| Trends in the hydrochemistry of acid-sensitive surface waters in the UK 1988–2008 DT Monteith, CD Evans, PA Henrys, GL Simpson, IA Malcolm Ecological Indicators 37, 287-303, 2014 | 72 | 2014 |
| Reconstructing pre-acidification pH for an acidified Scottish loch: a comparison of palaeolimnological and modelling approaches RW Battarbee, DT Monteith, S Juggins, CD Evans, A Jenkins, ... Environmental Pollution 137 (1), 135-149, 2005 | 72 | 2005 |
| permute: Functions for generating restricted permutations of data GL Simpson | 71 | 2012 |
| A palaeolimnological meta-database for assessing the ecological status of lakes RW Battarbee, D Morley, H Bennion, GL Simpson, M Hughes, V Bauere Journal of Paleolimnology 45 (4), 405-414, 2011 | 64 | 2011 |
| Deciphering the effect of climate change and separating the influence of confounding factors in sediment core records using additive models GL Simpson, NJ Anderson Limnology and Oceanography 54 (6part2), 2529-2541, 2009 | 64 | 2009 |
| Detecting changing river temperatures in England and Wales HG Orr, GL Simpson, S des Clers, G Watts, M Hughes, J Hannaford, ... Hydrological Processes 29 (5), 752-766, 2015 | 63 | 2015 |
| The use of diatom records to establish reference conditions for UK lakes subject to eutrophication H Bennion, GL Simpson Journal of paleolimnology 45 (4), 469-488, 2011 | 59 | 2011 |
| Defining reference conditions for acidified waters using a modern analogue approach GL Simpson, EM Shilland, JM Winterbottom, J Keay Environmental Pollution 137 (1), 119-133, 2005 | 58 | 2005 |
| Decrease in CO2 efflux from northern hardwater lakes with increasing atmospheric warming K Finlay, RJ Vogt, MJ Bogard, B Wissel, BM Tutolo, GL Simpson, ... Nature 519 (7542), 215, 2015 | 54 | 2015 |
| Trends in bulk deposition of acidity in the UK, 1988–2007, assessed using additive models CJ Curtis, GL Simpson Ecological Indicators 37, 274-286, 2014 | 49 | 2014 |
| Analogue Methods in Palaeolimnology GL Simpson Tracking Environmental Change Using Lake Sediments, 495-522, 2012 | 47* | 2012 |
| Defining ecological and chemical reference conditions and restoration targets for nine European lakes H Bennion, GL Simpson, NJ Anderson, G Clarke, X Dong, A Hobęk, ... Journal of Paleolimnology 45 (4), 415-431, 2011 | 47 | 2011 |
| An assessment of the mechanisms for the transfer of lead and mercury from atmospherically contaminated organic soils to lake sediments with particular reference to Scotland, UK NL Rose, H Yang, SD Turner, GL Simpson Geochimica et Cosmochimica Acta 82, 113-135, 2012 | 46 | 2012 |
| The role of cladocerans in tracking long-term change in shallow lake trophic status TA Davidson, H Bennion, E Jeppesen, GH Clarke, CD Sayer, D Morley, ... Hydrobiologia 676 (1), 299, 2011 | 46 | 2011 |
| Statistical learning in palaeolimnology GL Simpson, HJB Birks Tracking environmental change using lake sediments, 249-327, 2012 | 45 | 2012 |
| Nutrients exert a stronger control than climate on recent diatom communities in Esthwaite Water: evidence from monitoring and palaeolimnological records X Dong, H Bennion, SC Maberly, CD Sayer, GL Simpson, RW Battarbee Freshwater Biology 57 (10), 2044-2056, 2012 | 42 | 2012 |
| Terrestrial and aquatic responses to climate change and human impact on the southeastern Tibetan Plateau during the past two centuries J Wischnewski, A Kramer, Z Kong, AW Mackay, GL Simpson, S Mischke, ... Global Change Biology, 2011 | 41 | 2011 |
| Diel surface temperature range scales with lake size RI Woolway, ID Jones, SC Maberly, JR French, DM Livingstone, ... PLoS One 11 (3), e0152466, 2016 | 39 | 2016 |
| neotoma: A Programmatic Interface to the Neotoma Paleoecological Database S Goring, A Dawson, GL Simpson, K Ram, RW Graham, EC Grimm, ... Open Quaternary 1 (2), 1-17, 2015 | 39 | 2015 |
| Recovery of UK lakes from acidification: an assessment using combined palaeoecological and contemporary diatom assemblage data RW Battarbee, GL Simpson, EM Shilland, RJ Flower, A Kreiser, H Yang, ... Ecological indicators 37, 365-380, 2014 | 37 | 2014 |
| Evidence of recovery from acidification in the macroinvertebrate assemblages of UK fresh waters: a 20-year time series JF Murphy, JH Winterbottom, S Orton, GL Simpson, EM Shilland, ... Ecological Indicators 37, 330-340, 2014 | 37 | 2014 |
| Identifying from recent sediment records the effects of nutrients and climate on diatom dynamics in Loch Leven H BENNION, L CARVALHO, CD SAYER, GL SIMPSON, J WISCHNEWSKI Freshwater Biology, 2011 | 37 | 2011 |
| Increased variability and sudden ecosystem state change in Lake Winnipeg, Canada, caused by 20th century agriculture L Bunting, PR Leavitt, GL Simpson, B Wissel, KR Laird, BF Cumming, ... Limnology and Oceanography 61 (6), 2090-2107, 2016 | 35 | 2016 |
| A reference typology of low alkalinity lakes in the UK based on pre-acidification diatom assemblages from lake sediment cores RW Battarbee, GL Simpson, H Bennion, C Curtis Journal of Paleolimnology 45 (4), 489-505, 2011 | 30 | 2011 |
| Palaeolimnological assessment of lake acidification and environmental change in the Athabasca Oil Sands Region, Alberta CJ Curtis, R Flower, R Neil, J Shilland, GL Simpson, S Turner, Y Handong, ... Journal of Limnology 69 (1s), 92-104, 2010 | 30 | 2010 |
| Assessing the accuracy of diatom-based transfer functions in defining reference pH conditions for acidified lakes in the United Kingdom RW Battarbee, DT Monteith, S Juggins, GL Simpson, EW Shilland, ... The Holocene 18 (1), 57-67, 2008 | 30 | 2008 |
| Human impacts: Applications of numerical methods to evaluate surface-water acidification and eutrophication GL Simpson, RI Hall Tracking environmental change using lake sediments, 579-614, 2012 | 25 | 2012 |
| Harnessing the potential of the multi‐indicator palaeoecological approach: an assessment of the nature and causes of ecological change in a eutrophic shallow lake H Bennion, TA Davidson, CD Sayer, GL Simpson, NL Rose, JP Sadler Freshwater biology 60 (7), 1423-1442, 2015 | 22 | 2015 |
| Assessing degradation and recovery pathways in lakes impacted by eutrophication using the sediment record H Bennion, GL Simpson, BJ Goldsmith Frontiers in Ecology and Evolution 3, 94, 2015 | 20 | 2015 |
| Changing water temperatures: a surface water archive for England and Wales HG Orr, S Des Clers, GL Simpson, M Hughes, RW Battarbee, L Cooper, ... British Hydrological Society, 2010 | 16 | 2010 |
| Taxon selection using statistical learning techniques to improve transfer function prediction S Juggins, GL Simpson, RJ Telford The Holocene 25 (1), 130-136, 2015 | 15 | 2015 |
| ‘Diatoms and pH reconstruction’(1990) revisited HJB Birks, GL Simpson Journal of Paleolimnology 49 (3), 363-371, 2013 | 15 | 2013 |
| Dominance of biologically produced nitrate in upland waters of Great Britain indicated by stable isotopes CJ Curtis, THE Heaton, GL Simpson, CD Evans, J Shilland, S Turner Biogeochemistry 111 (1-3), 535-554, 2012 | 15 | 2012 |
| cocorresp: Co-Correspondence Analysis Ordination Methods (R Package Version 01-9) GL Simpson | 15 | 2009 |
| Responses of microbial phototrophs to late‐Holocene environmental forcing of lakes in south‐west Greenland NS Reuss, NJ Anderson, SC Fritz, GL Simpson Freshwater biology 58 (4), 690-704, 2013 | 14 | 2013 |
| A Bayesian palaeoenvironmental transfer function model for acidified lakes PB Holden, AW Mackay, GL Simpson Journal of Paleolimnology 39 (4), 551-566, 2008 | 14 | 2008 |
| The effects of atmospheric nitrogen deposition on terrestrial and freshwater biodiversity JS Baron, M Barber, M Adams, JI Agboola, EB Allen, WJ Bealey, ... Nitrogen deposition, critical loads and biodiversity, 465-480, 2014 | 13 | 2014 |
| A meta-database for recent paleolimnological studies RW Battarbee, D Morley, H Bennion, GL Simpson Past Human-Climate-Ecosystem Interactions, 2007 | 12 | 2007 |
| The role of palaeolimnology in identifying reference conditions and assessing ecological status of lakes H Bennion, G Simpson, M Hughes, G Phillips, I Fozzard How to assess and monitor ecological quality in freshwaters. Tema Nord 547 …, 2003 | 12 | 2003 |
| The coming and going of a marl lake: multi-indicator palaeolimnology reveals abrupt ecological change and alternative views of reference conditions E Wiik, H Bennion, CD Sayer, TA Davidson, SJ Clarke, S McGowan, ... Frontiers in Ecology and Evolution 3, 82, 2015 | 10 | 2015 |
| Development of a risk based prioritisation protocol for standing waters in Great Britain based on a georeferenced inventory-Phase 2 H Bennion, J Hilton, M Hughes, J Clark, D Hornby, M Kernan, G Simpson Environment Agency, 2003 | 10 | 2003 |
| Modelling palaeoecological time series using generalized additive models GL Simpson BioRxiv, 322248, 2018 | 8 | 2018 |
| Updating previous estimates of the load and source apportionment of nitrogen to waters in the UK G Hughes, E Lord, L Wilson, R Gooday, S Anthony, C Curtis, G Simpson Defra Project: WQ0111, 2008 | 8 | 2008 |
| Freshwater UMBRELLA-the Effect of Nitrogen Deposition & Climate Change on Freshwaters in the UK. CJ Curtis, G Simpson, BA Emmett, CD (Chris) Evans, T Heaton, M Kernan, ... | 8 | 2005 |
| Variance and rate‐of‐change as early warning signals for a critical transition in an aquatic ecosystem state: a test case from Tasmania, Australia KK Beck, MS Fletcher, PS Gadd, H Heijnis, KM Saunders, GL Simpson, ... Journal of Geophysical Research: Biogeosciences 123 (2), 495-508, 2018 | 5 | 2018 |
| Regional climate changes drive increased scaled-chrysophyte abundance in lakes downwind of Athabasca Oil Sands nitrogen emissions GR Mushet, KR Laird, B Das, B Hesjedal, PR Leavitt, KA Scott, ... Journal of Paleolimnology 58 (3), 419-435, 2017 | 5 | 2017 |
| Paleolimnological assessment of nutrient enrichment on diatom assemblages in a priori defined nitrogen-and phosphorus-limited lakes downwind of the Athabasca Oil Sands, Canada KR Laird, B Das, B Hesjedal, PR Leavitt, GR Mushet, KA Scott, ... Journal of Limnology 76 (3), 2017 | 5 | 2017 |
| The present is the key to the past, but what does the future hold for the recovery of surface waters from acidification? RC Helliwell, GL Simpson Water research 44 (10), 3166-3180, 2010 | 5 | 2010 |
| Defining restoration targets for acidified upland lakes using diatom and cladoceran sub-fossil remains and the modern analogue technique GL Simpson PQDT-Global, 2005 | 5 | 2005 |
| Integrating habitats directive and Water Framework Directive monitoring: Baseline surveys of Natura 2000 standing water habitats in Wales. B Goldsmith, H Bennion, M Hughes, V Jones, C Rose, G Simpson | 5 | 2005 |
| Isotopic structure of lake whitefish in Lake Huron: Evidence for regional and local populations based on resource use RL Eberts, B Wissel, GL Simpson, SS Crawford, W Stott, RH Hanner, ... North American Journal of Fisheries Management 37 (1), 133-148, 2017 | 4 | 2017 |
| Restricted permutations; using the permute package GL Simpson Environmental Change Research Centre-UCL, 2012 | 4 | 2012 |
| Environmental change in Scottish fresh waters H Bennion, G Simpson, RW Battarbee, NG Cameron, C Curtis, RJ Flower, ... The Stationery Office, 2002 | 4 | 2002 |
| Holocene el Nińo–southern Oscillation variability reflected in subtropical Australian precipitation C Barr, J Tibby, MJ Leng, JJ Tyler, ACG Henderson, JT Overpeck, ... Scientific Reports 9 (1), 1627, 2019 | 3 | 2019 |
| Spatial variations in snowpack chemistry, isotopic composition of NO3− and nitrogen deposition from the ice sheet margin to the coast of western Greenland CJ Curtis, J Kaiser, A Marca, NJ Anderson, G Simpson, V Jones, ... Biogeosciences 15 (2), 529-550, 2018 | 3 | 2018 |
| Epilithic diatoms RJ Flower, GL Simpson, AM Kreiser, H Yang, EM Shilland, RW Battarbee ENSIS Ltd, Environmental Change Research Centre, University College London, 2010 | 3 | 2010 |
| Tributyltin (TBT) and the decline of the Norfolk Broads CD Sayer, MJ Jackson, GL Simpson, MJ Waldock, J Reed, ... Environmental Change Research Centre, 2001 | 3 | 2001 |
| Differential stimulation and suppression of phytoplankton growth by ammonium enrichment in eutrophic hardwater lakes over 16 years VJ Swarbrick, GL Simpson, PM Glibert, PR Leavitt Limnology and Oceanography 64 (S1), S130-S149, 2019 | 2 | 2019 |
| Effects of experimental nitrogen fertilization on planktonic metabolism and CO2 flux in a hypereutrophic hardwater lake MJ Bogard, K Finlay, MJ Waiser, VP Tumber, DB Donald, E Wiik, ... PloS one 12 (12), e0188652, 2017 | 2 | 2017 |
| CRAN Task View: Analysis of Ecological and Environmental Data G Simpson | 2 | 2015 |
| Influence of the Little Ice Age on the biological structure of lakes in South West Greenland S McGowan, EJ Hogan, V Jones, NJ Anderson, G Simpson AGU Fall Meeting Abstracts, 2013 | 2 | 2013 |
| Macroinvertebrates AG Hildrew, JH Winterbottom, S Orton, J Murphy, GL Simpson, ... ENSIS Ltd, Environmental Change Research Centre, University College London, 2010 | 2 | 2010 |
| Paleolimnological study of selected lakes in the Wood Buffalo region involving collection and analysis of surface, bottom and full core lake sediment samples CJ Curtis, R Flower, N Rose, J Shilland, GL Simpson, S Turner, H Yang, ... ECRC, 2008 | 2 | 2008 |
| Freshwater screening and assessment based on freshwater critical loads. C Curtis, D Cooper, A Jenkins, M Kernan, L Pope, G Simpson WRc, 2003 | 2 | 2003 |
| Hierarchical generalized additive models in ecology: an introduction with mgcv EJ Pedersen, DL Miller, GL Simpson, N Ross PeerJ 7, e6876, 2019 | 1* | 2019 |
| Widespread nitrous oxide undersaturation in farm waterbodies creates an unexpected greenhouse gas sink JR Webb, NM Hayes, GL Simpson, PR Leavitt, HM Baulch, K Finlay Proceedings of the National Academy of Sciences 116 (20), 9814-9819, 2019 | 1 | 2019 |
| Spatial and temporal variation in nitrogen fixation and its importance to phytoplankton in phosphorus‐rich lakes NM Hayes, A Patoine, HA Haig, GL Simpson, VJ Swarbrick, E Wiik, ... Freshwater Biology 64 (2), 269-283, 2019 | 1 | 2019 |
| Regional variability in the atmospheric nitrogen deposition signal and its transfer to the sediment record in Greenland lakes NJ Anderson, CJ Curtis, EJ Whiteford, VJ Jones, S McGowan, ... Limnology and Oceanography 63 (5), 2250-2265, 2018 | 1 | 2018 |
| Generalized additive models of climatic and metabolic controls of sub‐annual variation in pCO2 in productive hardwater lakes E Wiik, HA Haig, NM Hayes, K Finlay, GL Simpson, RJ Vogt, PR Leavitt Journal of Geophysical Research: Biogeosciences 123 (3), 1940-1959, 2018 | 1 | 2018 |
| Comparing smooths in factor-smooth interactions I G Simpson From the Bottom of the Heap, 2017 | 1 | 2017 |
| Fitting count and zero-inflated count GLMMs with mgcv G Simpson From the Bottom of the Heap, 2017 | 1 | 2017 |
| Simultaneous intervals for smooths revisited G Simpson From the Bottom of the Heap, 2016 | 1 | 2016 |
| coenocliner: a coenocline simulation package for R GL Simpson | 1 | 2016 |
| Package ‘dendextend’ T Galili, G Simpson, G Jefferis, M Gallotta, J Renaudie | 1 | 2015 |
| Modelling seasonal data with GAMs G Simpson From the Bottom of the Heap, 2014 | 1 | 2014 |
| Looking forward through the past AWR Seddon, AW Mackay, AG Baker, HJB Birks, E Breman, CE Buck, ... Journal of Ecology, 2014 | 1 | 2014 |
| Freshwater Umbrella-The effect of nitrogen deposition and climate change on freshwaters in the UK. Report to DEFRA under contract CPEA17. C Curtis, GL Simpson, J Shilland, S Turner, M Kernan, DT Monteith, ... | 1 | 2007 |
| Summary of Research under DETR Contract" Acidification of freshwaters: the role of nitrogen and the prospects for recovery", EPG1/3/117 C Curtis, G Simpson ECRC, University College London, 2001 | 1 | 2001 |
| Taxon-specific variation in δ13C and δ15N of subfossil invertebrate remains: Insights into historical trophodynamics in lake food-webs MUM Anas, GL Simpson, PR Leavitt, BF Cumming, KR Laird, KA Scott, ... Ecological Indicators 102, 834-847, 2019 | | 2019 |
| Spatial analysis of a hydrocarbon waste‐remediating landfarm demonstrates influence of management practices on bacterial and fungal community structure J Bergsveinson, BJ Perry, GL Simpson, CK Yost, RJ Schutzman, BD Hall, ... Microbial Biotechnology, 2019 | | 2019 |
| Habitat specificity is not universal proxy for sensitivity to habitat conversion among rodents on the Canadian Prairies LM Heisler, GL Simpson, RG Poulin, TI Wellicome, BD Hall bioRxiv, 678268, 2019 | | 2019 |
| Seasonality of pCO2 in a hard‐water lake of the northern Great Plains: The legacy effects of climate and limnological conditions over 36 years K Finlay, RJ Vogt, GL Simpson, PR Leavitt Limnology and Oceanography 64 (S1), S118-S129, 2019 | | 2019 |
| Introducing gratia G Simpson From the Bottom of the Heap, 2018 | | 2018 |
| Specific Immunity to Cytomegalovirus in Pediatric Cardiac Transplantation MC Jacobsen, MDI Manunta, ES Pincott, M Fenton, GL Simpson, NJ Klein, ... Transplantation 102 (9), 1569-1575, 2018 | | 2018 |
| Fitting GAMs with brms: part 1 G Simpson From the Bottom of the Heap, 2018 | | 2018 |
| Spatial variations in snowpack chemistry and isotopic composition of nitrate along a nitrogen deposition gradient in West Greenland CJ Curtis, J Kaiser, A Marca, NJ Anderson, G Simpson, V Jones, ... EGU General Assembly Conference Abstracts 20, 17517, 2018 | | 2018 |
| Established rodent community delays recovery of dominant competitor following experimental disturbance EM Christensen, GL Simpson, M Ernest BioRxiv, 503078, 2018 | | 2018 |
| Targeting of the large-conductance, voltage and Ca2+-activated K+ (BK) channel in acute Spinal Cord Injury is neuroprotective M Jacobsen, K Lett, JM Barden, GL Simpson, J Buttigieg Frontiers in Neurology 9, 1107, 2018 | | 2018 |