Journal of Paleolimnology

, Volume 32, Issue 2, pp 197–213 | Cite as

Reconstructing climate and environmental change in northern England through chironomid and pollen analyses: evidence from Talkin Tarn, Cumbria

  • P.G. Langdon
  • K.E. Barber
  • S.H. Lomas-Clarke (previously Morriss)

Abstract

Chironomids have been used extensively for reconstructing past temperatures from the late glacial chronozone but far less work has focused on their use as temperature proxies throughout the Holocene, and little work has been undertaken within the UK. Northern England does have many detailed palaeoclimate records, although the majority of these are reconstructions from ombrotrophic peat bogs, which yield a combined temperature and precipitation proxy record. A lake sediment core from Talkin Tarn, dating back 6000 years, was therefore analysed for chironomid remains in an attempt to produce a Holocene temperature reconstruction. Although chironomids have been shown to respond to air temperature by many modern training sets, it is also known that they can respond to other environmental factors. Pollen and loss-on-ignition analyses were therefore undertaken to ascertain whether the lake had been subjected to major environmental changes. Some anthropogenic changes in land use were detected, which may have affected the lake water chemistry and sediments, but they seem to have had little direct impact on the chironomid fauna for the majority of the record. Part of the geology of the catchment is limestone, which suggests that the lake may be buffered against any changes in pH. A chironomid-inferred mean July temperature transfer function from a Norwegian training set was applied to the chironomid data and produced a reconstruction with significant fluctuations throughout the later Holocene, which were associated with cold and warm stenotherms within the assemblages. The uppermost chironomid sample from the lake core (less than 100 years old) has a reconstructed temperature of 14.6 °C (± sample-specific error of 1.18 °C), which compares well with the contemporary mean July average of 14.8 °C. It is therefore concluded that chironomids can be used to reconstruct Holocene temperature, provided the site is well-buffered in relation to pH changes and can be shown not to have been influenced to any great extent by anthropogenic disturbance.

Chironomids Climate Holocene Palaeolimnology Pollen Temperature Transfer function 

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References

  1. Aaby B. 1976. Cyclic climatic variations in climate over the past 5500 years reflected in raised bogs. Nature 263: 281–284.Google Scholar
  2. Andersen S.Th. 1965. Mounting media and mounting techniques. In: Kummel B. and Raup D. (eds), Handbook of Paleontological Techniques, Freeman and Co., San Francisco, pp. 587–598.Google Scholar
  3. Andersen S.Th. 1979. Identification of wild grasses and cereal pollen. Danmarks Geologiske Undersogelse Årbog 1978: 69–92.Google Scholar
  4. Andrew R. 1984. A practical pollen guide to the British Flora. Quaternary Research Association Technical Guide No. 1, QRA, Cambridge, 139 pp.Google Scholar
  5. Baillie M.G.L. 1991. Suck in and smear: two related chronological problems for the 90s. J. Theor. Arch. 2: 12–16.Google Scholar
  6. Bailey J. and Culley G. 1805. General View of the Agriculture of Northumberland, Cumberland and Westmorland Frank Graham, Newcastle upon Tyne (1972 facsimile of 3rd edn) 1805), 361 pp.Google Scholar
  7. Barber K.E. 1976. History of the vegetation. In: Chapman S.B. (ed.), Methods in Plant Ecology, Blackwell, Oxford, pp. 5–83.Google Scholar
  8. Barber K.E. 1981. Peat Stratigraphy and Climatic Change. A.A. Balkema, Rotterdam, 219 pp.Google Scholar
  9. Barber K.E., Chambers F.M., Maddy D., Stoneman R.E. and Brew J.S. 1994. A sensitive high-resolution record of Late Holocene climatic change from a raised bog in Northern England. The Holocene 4: 198–205.Google Scholar
  10. Barber K.E., Dumayne-Peaty L., Hughes P.D.M., Mauquoy D. and Scaife R.G. 1998. Replicability and variability of the recent macrofossil and proxy-climate record from raised bogs: field stratigraphy and macrofossil data from Bolton Fell Moss and Walton Moss, Cumbria, England. J. Quat. Sci. 13: 515–528.CrossRefGoogle Scholar
  11. Barrow E., Hulme M. and Jiang T. 1993. A 1961-90 Baseline and Future Climate Change Scenarios for Great Britain and Europe. Part I: 1961-90 Great Britain Baseline Climatology. Climatic Research Unit, School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, England, 50 pp.Google Scholar
  12. Battarbee R.W. 2000. Palaeolimnological approaches to climate change, with special regard to the biological record. Quat. Sci. Rev. 19: 107–124.CrossRefGoogle Scholar
  13. Battarbee R.W., Cameron N.G., Golding P., Brooks S.J., Switsur R., Harkness D., Appelby P., Oldfield F., Thompson R., Monteith D.T. and McGovern A. 2001. Evidence for Holocene climate variability from the sediments of a Scottish remote mountain lake. J. Quat. Sci. 16: 339–346.CrossRefGoogle Scholar
  14. Battarbee R.W., Grytnes J.-A., Thompson R., Appleby P.G., Catalan J., Korhola A., Birks H.J.B., Heegaard E. and Lami A. 2002. Comparing palaeolimnological and instrumental evidence of climate change for remote mountain lakes over the last 200 years. J. Paleolim. 28: 161–179.CrossRefGoogle Scholar
  15. Bennett K.D., Whittington G. and Edwards K.J. 1994. Recent plant nomenclatural changes and pollen morphology in the British Isles. Quat. Newslett. 73: 1–6.Google Scholar
  16. Bigler C., Larocque I., Peglar S.M., Birks H.J.B. and Hall R.I. 2002. Quantitative multiproxy assessment of long-term patterns of Holocene environmental change from a small lake near Abisko, northern Sweden. The Holocene 12: 481–496.CrossRefGoogle Scholar
  17. Birks H.J.B. 1995. Quantitative palaeoenvironmental reconstructions. In: Maddy D. and Brew J.S. (eds), Statistical Modelling of Quaternary Science Data, QRA Technical Guide, vol. 5, pp. 161–254.Google Scholar
  18. Birks H.J.B. 1998. Numerical tools in palaeolimnology — progress, potentialities, and problems. J. Paleolim. 20: 307–332.CrossRefGoogle Scholar
  19. Birks H.J.B. and Gordon A.D. 1985. Numerical Methods in Quaternary Pollen Analysis. Academic Press Inc., London, 317 pp.Google Scholar
  20. Birks H.H., Battarbee R.W. and Birks H.J.B. 2000. The development of the aquatic ecosystem at Kråkenes Lake, western Norway, during the late glacial and early Holocene — a synthesis. J. Palcolim. 23: 91–114.CrossRefGoogle Scholar
  21. Bond G., Showers W., Cheseby M., Lotti R., Almasi P., deMenocal P., Priore P., Cullen H., Hajdas I. and Bonani G. 1997. A pervasive millennial-scale cycle in North Atlantic Holocene and glacial climates. Science 278: 1257–1266.CrossRefGoogle Scholar
  22. Brodersen K.P. and Lindegaard C. 1999. Classification, assessment and trophic reconstruction of Danish lakes using chironomids. Freshw. Biol. 42: 143–157.CrossRefGoogle Scholar
  23. Brodin Y.-W. 1986. The postglacial history of Lake Flarken, southern Sweden, interpreted from subfossil insect remains. Int. Rev. Ges. Hydrobiol. 71: 371–432.Google Scholar
  24. Brodin Y.-W. and Gransberg M. 1993. Responses of insects, especially Chironomidae (Diptera), and mites to 130 years of acidification in a Scottish lake. Hydrobiology 250: 201–212.Google Scholar
  25. Brooks S.J. 2000. Late-glacial fossil midge stratigraphies (Insecta: Diptera: Chironomidae) from the Swiss Alps. Palacogeo. Palaeoclim. Palaeoecol. 159: 261–279.CrossRefGoogle Scholar
  26. Brooks S.J. 2003. Chironomid analysis to interpret and quantify Holocene climate change. In: Mackay A.W., Battarbee R.W., Birks H.J.B. and Oldfield F. (eds), Global Change in the Holocene, Arnold, London, pp. 328–341.Google Scholar
  27. Brooks S.J. and Birks H.J.B. 2000. Chironomid-inferred late-glacial and early-Holocene mean July air temperatures for Kråkenes Lake, western Norway. J. Paleolim. 23: 77–89.CrossRefGoogle Scholar
  28. Brooks S.J. and Birks H.J.B. 2001a. Chironomid-inferred Lateglacial air temperatures at Whitrig Bog, southeast Scotland. J. Quat. Sci. 15: 759–764.CrossRefGoogle Scholar
  29. Brooks S.J. and Birks H.J.B. 2001b. Chironomid-inferred air temperatures from late-glacial and Holocene sites in northwest Europe: progress and problems. Quat. Sci. Rev. 20: 1723–1741.CrossRefGoogle Scholar
  30. Brooks S.J., Bennion H. and Birks H.J.B. 2001. Tracing lake trophic history with a chironomid-total phosphorus inference model. Freshw. Biol. 46: 513–533.CrossRefGoogle Scholar
  31. Carter C.E. 1977. The recent history of the chironomid fauna of Lough Neagh from the analysis of remains in sediment cores. Freshw. Biol. 7: 415–423.Google Scholar
  32. Chambers C. 1978. A radiocarbon-dated pollen diagram from Valley Bog, on the Moor House National Nature Reserve. New Phytologist 80: 435–453.Google Scholar
  33. Cranston P.S. 1982. A key to the larvae of the British Orthocladiinae (Chironomidae). Freshwater Biological Association, Ambleside, 152 pp.Google Scholar
  34. Dark K.R. and Dark S.P. 1996. New archaeological and palynological evidence for a sub-Roman reoccupation of Hadrian’s Wall. Archaelogica Aeliana 5 Series 24: 57–72.Google Scholar
  35. Dark K. and Dark P. 1997. The Landscape of Roman Britain. Sutton Publishing Ltd, Stroud, 192 pp.Google Scholar
  36. Dark P. 2000. The Environment of Britain in the First Millennium AD. Ducksworth, London, 240 pp.Google Scholar
  37. Davies G. and Turner J. 1979. Pollen diagrams from Northumberland. New Phytologist 82: 783–804.Google Scholar
  38. Dickson C. 1988. Distinguishing cereal from wild grass pollen: some limitations. Circaea 5: 67–71.Google Scholar
  39. Donaldson A.M. and Turner J. 1977. A pollen diagram from Hallowell Moss, near Durham City, UK. J. Biogeogr. 4: 25–33.Google Scholar
  40. Dumayne L. and Barber K.E. 1994. The impact of the Romans on the environment of northern England: pollen data from three sites close to Hadrian’s Wall. The Holocene 4: 165–173.Google Scholar
  41. Dumayne-Peaty L. and Barber K.E. 1998. Late Holocene vegetational history, human impact and pollen representativity variations in northern Cumbria, England. J. Quat. Sci. 13: 147–164.CrossRefGoogle Scholar
  42. Edwards K.J. 1989. The cereal pollen record and early agriculture. In: Milles A., Williams D. and Gardner N. (eds), The Beginnings of Agriculture, BAR International Series, vol. 496, pp. 113–135.Google Scholar
  43. Edwards K.J. and Whittington G. 2001. Lake sediments, erosion and landscape change during the Holocene in Britain and Ireland. Catena 42: 143–173.CrossRefGoogle Scholar
  44. Faegri K. and Iversen J. 1989. Textbook of Pollen Analysis, 4th edn. John Wiley and Sons, 328 pp.Google Scholar
  45. Fowler P.J. 1983. The Farming of Prehistoric Britain. Cambridge University Press, Cambridge, 256 pp.Google Scholar
  46. Francis D.R. and Foster D.R. 2001. Response of small New England ponds to historic land use. The Holocene 11: 301–312.CrossRefGoogle Scholar
  47. Grimm E.C. 1991. TILIA and TILIA.GRAPH. Illinois State Museum, Springfield.Google Scholar
  48. Hann B.J., Warner B.G. and Warwick W.F. 1992. Aquatic invertebrates and climate change: a comment on Walker et al. 1991. Can. J. Fish. Aq. Sci. 49: 1274–1276.Google Scholar
  49. Heinrichs M.L., Walker I.R. and Mathewes R.W. 2001. Chironomid-based paleosalinity records in southern British Columbia, Canada: a comparison of transfer functions. J. Paleolim. 26: 147–159.CrossRefGoogle Scholar
  50. Heiri O. and Lotter A.F. 2001. Effects of low count sums on quantitative environmental reconstructions: an example using subfossil chironomids. J. Paleolim. 26: 343–350.CrossRefGoogle Scholar
  51. Heiri O., Lotter A.F. and Lemcke G. 2001. Loss on ignition as a method for estimating organic and carbonate content in sediments: reproducibility and comparability of results. J. Paleolim. 25: 101–110.CrossRefGoogle Scholar
  52. Heiri O., Lotter A.F., Hausmann S. and Kienast F. 2003. A chironomid-based Holocene summer air temperature reconstruction from the Swiss Alps. The Holocene 13: 477–484.CrossRefGoogle Scholar
  53. Higham N.J. 1986. The Northern Counties to 1000 AD. Longman, London.Google Scholar
  54. Hofmann W. 1971. Zur Taxonomie und Palökologie subfossiler Chironomiden (Dipt.) in Seesedimenten. Ergebnisse der Limnologie, Archiv für Hydrobiologie Beiheft (International Vereinigung für theoretische und angewandte Limnologie, Stuttgart) 6: 1–50.Google Scholar
  55. Hofmann W. 1984. Stratigraphie suubfossiler cladocera (Crustacea) und Chironomidae (Diptera) in zwei sediment-profilen des Meerfelder Maares. Cour. Forsch. Inst. Senckenberg 65: 67–80.Google Scholar
  56. Hughes E. 1965. North Country Life in the Eighteenth Century: Cumberland and Westmoreland 1700–1830, vol. 2, Oxford University Press, Oxford, 426 pp.Google Scholar
  57. Hughes P.D.M., Mauquoy D., Barber K.E. and Langdon P.G. 2000. Mire development pathways and palaeoclimatic records from a full Holocene peat archive at Walton Moss, Cumbria, England. The Holocene 10: 465–479.CrossRefGoogle Scholar
  58. Jackson S.T. 1990. Pollen source area and representation in small lakes of the northeastern United States. Rev. Palaeobot, Palynol. 63: 53–76.Google Scholar
  59. Jacobsen G.L.Jr. and Bradshaw R.H.W. 1981. The selection of sites for palaeovegetational studies. Quat. Res. 16: 80–89.CrossRefGoogle Scholar
  60. Jones R.T., Marshall J.D., Crowley S.F., Bedford A., Richardson N., Bloemendal J. and Oldfield F. 2002. A high resolution, multiproxy late-glacial record of climate change and intrasystem responses in northwest England. J. Quat. Sci. 17: 329–340.CrossRefGoogle Scholar
  61. Korhola A., Vasko K., Toivonen H.T.T. and Olander H. 2002. Holocene temperature changes in northern Fennoscandia reconstructed from chironomids using Bayesian modelling. Quat. Sci. Rev. 21: 1841–1860.CrossRefGoogle Scholar
  62. Langdon P.G., Barber K.E. and Hughes P.D.M. 2003. A 7500 year peat-based palaeoclimatic reconstruction and evidence for an 1100 year cyclicity in bog surface wetness from Temple Hill Moss, Pentland Hills, Southeast Scotland. Quat. Sci. Rev. 22: 259–274.CrossRefGoogle Scholar
  63. Larocque I., Hall R.I. and Grahn E. 2001. Chironomids as indicators of climate change: a 100-lake training set from a subarctic region of northern Sweden (Lapland). J. Paleolim. 26: 307–322.CrossRefGoogle Scholar
  64. Larocque I. and Hall R.I. 2003. Chironomids as quantitative indicators of mean July air temperature: validation by comparison with century-long meteorological records from northern Sweden. J. Paleolim. 29: 475–493.CrossRefGoogle Scholar
  65. Lindegaard C. 1997. Diptera Chironomidae, non-biting midges. In: Nilsson A.M. (ed.), Aquatic Insects of North Europe — a Taxonomic Handbook, vol. 2, Apollo Books, Stenstrup, pp. 265–294.Google Scholar
  66. Lotter A.F., Birks H.J.B., Hofmann W. and Marchetto A. 1997. Modern diatom, cladocera, chironomid, and chrysophyte cyst assemblages as quantitative indicators for the reconstruction of past environmental change in the Alps. 1. Climate. J. Paleolim. 18: 395–420.CrossRefGoogle Scholar
  67. Lotter A.F., Walker I.R., Brooks S.J. and Hofmann W. 1999. title-child〉An intercontinental comparison of chironomid palaeotemperature inference models: Europe vs North America. Quat. Sci. Rev. 18: 717–735.CrossRefGoogle Scholar
  68. Mauquoy D. and Barber K.E. 1999. A replicated 3000 year proxy-climate record from Coom Rigg Moss and Felecia Moss, the Border Mires, northern England. J. Quat. Sci. 14: 263–275.CrossRefGoogle Scholar
  69. Mauquoy D., van Geel B., Blaauw M. and van der Plicht J. 2002. Evidence from North-West European bogs shows ‘Little Ice Age’ climatic changes driven by changes in solar activity. The Holocene 12: 1–6.CrossRefGoogle Scholar
  70. Moore P.D. and Webb J.A. 1978. An Illustrated Guide to Pollen Analysis. Hodder and Stoughton, London, 133 pp.Google Scholar
  71. Moore P.D., Webb J.A. and Collinson M.E. 1991. Pollen Analysis, 2nd edn. Blackwell Scientific Publications, Oxford, 216 pp.Google Scholar
  72. Morriss S.H. 2001. Recent human impact and land use change in Britain and Ireland: a pollen analytical and geochemical study. Unpublished PhD thesis, University of Southampton, UK, 320 pp.Google Scholar
  73. Olander H., Birks H.J.B., Korhola A. and Blom T. 1999. An expanded calibration model for inferring lakewater and air temperatures from fossil chironomid assemblages in northern Fennoscandia. The Holocene 9: 279–294.CrossRefGoogle Scholar
  74. Oliver D.R. and Roussel M.E. 1983. The insects and arachnids of Canada, Part 11: the genera of larval midges of Canada. Agriculture Canada, Ottawa, 263 pp.Google Scholar
  75. Palmer S.L., Walker I.R., Heinrichs M.L., Hebda R. and Scudder G. 2002. Postglacial midge community change and Holocene palaeotemperature reconstructions near treeline, southern British Columbia (Canada). J. Paleolim. 28: 469–490.CrossRefGoogle Scholar
  76. Pellat M.G., Smith M.J., Mathewes R.W., Walker I.R. and Palmer S.L. 2000. Holocene treeline and climate change in the Subalpine Zone near Stoyoma Mountain, Cascade Mountains, south-western British Columbia, Canada. Arc. Antarc. Alp. Res. 32: 73–83.Google Scholar
  77. Pinder L.C.V. and Morley D.J. 1995. Chironomidae as indicators of water quality — with a comparison of the chironomid faunas of a series of contrasting Cumbrian tarns. In: Harrington R. and Stork N.E. (eds), Insects in a Changing Environment, Academic Press, London, pp. 271–293.Google Scholar
  78. Porinchu D.F. and Cwynar L. 2002. Late-Quaternary history of midge communities and climate from a tundra site near the lower Lena River, Northeast Siberia. J. Paleolim. 27: 59–69.CrossRefGoogle Scholar
  79. Praglowski J. 1970. The effects of pre-treatment and the embedding media on the shape of pollen grains. Rev. Palaeobot. Palynol. 110: 203–208.CrossRefGoogle Scholar
  80. Quinlan R., Smol J.P. and Hall R.I. 1998. Quantitative inferences of past hypolimnetic anoxia in south-central Ontario lakes using fossil midges (Diptera: Chironomidae). Can. J. Fish. Aq. Sci. 55: 587–596.CrossRefGoogle Scholar
  81. Quinlan R. and Smol J.P. 2001. Setting minimum head capsule abundance and taxa deletion criteria in chironomid-based inference models. J. Paleolim. 26: 327–342.CrossRefGoogle Scholar
  82. Quinlan R. and Smol J.P. 2002. Chironomid-based inference models for estimating end-of summer hypolimnetic oxygen from south-central Ontario lakes. Freshw. Biol. 46: 1529–1551.CrossRefGoogle Scholar
  83. Rieradevall M. and Brooks S.J. 2001. An identification guide to subfossil Tanypodinae larvae (Insecta: Diptera: Chironomidae) based on cephalic setation. J. Paleolim. 25: 81–99.CrossRefGoogle Scholar
  84. Roberts B.K., Turner J. and Ward P.F. 1973. Recent forest history and land-use in Weardale, northern England. In: Birks H.J.B. and West R.G. (eds), Quaternary Plant Ecology, Blackwell Scientific Publications, London, pp. 207–221.Google Scholar
  85. Rosén P., Segerström U., Eriksson L., Renberg I. and Birks H.J.B. 2001. Climate change during the Holocene as recorded by diatoms, chironomids, pollen and near-infrared spectroscopy (NIRS) in a sediment core from an alpine lake (Sjuodijaure) in northern Sweden. The Holocene 11: 551–562.CrossRefGoogle Scholar
  86. Sadler J.P. and Jones J.C. 1997. Chironomids as indicators of Holocene environmental change in the British Isles. Quat. Proc. 5: 219–232.Google Scholar
  87. Seppä H., Nyman M., Korhola A. and Weckström J. 2002. Changes of treelines and alpine vegetation in relation to post-glacial climate dynamics in northern Fennoscandia based on pollen and chironomid records. J. Quat. Sci. 17: 287–301.CrossRefGoogle Scholar
  88. Smol J.P., Birks H.J.B. and Last W.M. (eds), 2001a. Tracking Environmental Changes using Lake Sediments, Volume 3 — Terrestrial, Algal, and Siliceous Indicators. Kluwer Academic Publishers, 371 pp.Google Scholar
  89. Smol J.P., Birks H.J.B. and Last W.M. (eds), 2001b. Tracking Environmental Changes using Lake Sediments, Volume 4 — Zoological Indicators. Kluwer Academic Publishers, 217 pp.Google Scholar
  90. Stace J. 1991. New Flora of the British Isles. Cambridge University Press, Cambridge, 1130 pp.Google Scholar
  91. Stuiver M., Reimer P.J., Bard E., Beck J.W., Burr G.S., Hughen K.A., Kromer B., McCormac F.G., van der Plicht J. and Spurk M. 1998. INTCAL98 radiocarbon age calibration, 24,000-0 cal BP. Radiocarbon 40: 1041–1083.Google Scholar
  92. ter Braak C.J.F. 1991. Program CANOCO Version 3.12. Agricultural Mathematics Group: Wageningen, The Netherlands, 35 pp.Google Scholar
  93. Tinner W., Conedera M., Ammann B., Gäggeler H.W., Gedye S., Jones R. and Sägesser B. 1998. Pollen and charcoal in lake sediments compared with historically documented forest fires is southern Switzerland since AD 1920. The Holocene 8: 31–42.CrossRefGoogle Scholar
  94. Turner J. 1979. The environment of northeast England during Roman times as shown by Pollen Analysis. J. Arch. Sci. 6: 285–290.CrossRefGoogle Scholar
  95. van Geel B., Buurman J. and Waterbolk H.T. 1996. Archaeological and palaeoecological indications of an abrupt climate change in The Netherlands, and evidence for climatological teleconnections around 2650 BP. J. Quat. Sci. 11: 451–460.CrossRefGoogle Scholar
  96. Walker I.R. 2001. Midges: Chironomidae and related Diptera. In: Smol J.P., Birks H.J.B. and Last W.M. (eds), Tracking Environmental Changes using Lake Sediments, Volume 4 — Zoological Indicators, Kluwer Academic Publishers, pp. 43–66.Google Scholar
  97. Walker I.R., Smol J.P., Engstrom D.R. and Birks H.J.B. 1991. An assessment of Chironomidae as quantitative indicators of past climatic change. Can. J. Fish. Aq. Sci. 48: 975–987.Google Scholar
  98. Walker I.R., Smol J.P., Engstrom D.R. and Birks H.J.B. 1992. Aquatic invertebrates, climate, scale, and statistical hypotheses testing: a response to Hann, Warner and Warwick. Can. J. Fish. Aq. Sci. 49: 1276–1280.Google Scholar
  99. Walker I.R., Levesque A.J., Cwynar L.C. and Lotter A.F. 1997. An expanded surface-water palaeotemperature inference model for use with fossil midges from eastern Canada. J. Paleolim. 18: 165–178.CrossRefGoogle Scholar
  100. Wiederholm T. (ed.) 1983. Chironomidae of the Holartic region. Keys and diagnoses. Part 1. Larvae. Entomol. Scand. Suppl. 19: 1–457.Google Scholar
  101. Winchester A.J.L. 1987. The Farming Landscape. In: Rollinson W. (ed.), The Lake District Landscape Heritage, David and Charles, London, 76–100.Google Scholar

Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • P.G. Langdon
    • 1
  • K.E. Barber
    • 2
  • S.H. Lomas-Clarke (previously Morriss)
    • 2
  1. 1.Department of GeographyUniversity of ExeterExeterUK
  2. 2.Palaeoecology Laboratory, School of GeographyUniversity of SouthamptonSouthamptonUK

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