Distribution of testate amoebae along a gradient hummock-lawn-hollow in a Sphagnum-bog : potential implications for palaeoecological reconstructions

• Autorzy: Portsmuth A. , Avel-Niinemets E. , Pensa M.
• Języki publikacji: EN

Abstrakty

EN

Testate amoebae consist of a group of protists producing protective external coats (tests), which potentially allows them to be used in palaeoecological studies. They are known to be good indicators of several ecological parameters such as water chemistry, moisture and water table level in substrate, and especially peat moisture. Because of their strong dependence on environmental variables it is assumed that each bog microform (e.g. hummock, hollow) is characterized by a different assemblage of testate amoebae. The distribution of testate amoebae assemblages in peat bog of north-eastern Estonia was studied along the gradient from hummock to hollow in the upper 30 cm of the peat layer along a transect of 10 m. The composition and abundance of testate amoebae communities were analyzed in the samples collected (peat sampler, 5 cm diameter) from each sample point (at a distance of 2.5 m from each other) from hummock to hollow. Indicatory species specific to certain bog microforms (representing a set of environmental variables) were found, as well as other species typical for individual environment variables such as depth, peat decomposition degree, and distance to water table or local vegetation. Data analysis showed that distinct bog microforms are better described by abundance of particular testate amoebae species in peat than by species proportions in total abundance of the assemblage. The frequency of occurrence of species with dry environment preference correlates well with arboreal and Calluna vulgaris pollen and high degree of decomposition of peat; it all indicates a dryer environment and possibly is referring to a hummock microform. Amphitrema flavum correlates well with Sphagnum; this correlation increases with the A. flavum shift downwards from Sphagnum up to 4 cm. Testate amoebae assemblages in different bog microforms, even within 10 m, are distinctly different. To pay attention to possible changes of bog microforms in time is therefore crucialfor reconstructing the palaeohydrological history of bogs.

Słowa kluczowe

EN

raised bog; Testate amoebae; hummock-lawn-hollow gradient; indicator species

PL

ameby skorupkowe; gatunek wskaźnikowy; torfowisko

• Wydawca: Museum and Institute of Zoology, Polish Academy of Sciences
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2011
• Tom: Vol. 59, nr 3
• Strony: 551--566
• Opis fizyczny: Bibliog. 43 poz.,

Twórcy

autor

Portsmuth A.

autor

Avel-Niinemets E.

autor

Pensa M.

• Institute of Ecology, Tallinn University, Pargi 15, 41537 Johvi, Estonia,

Bibliografia

• 1. Aaby B., Tauber H. 1975 – Rates of peat formation in relation to degree of humification and local environment, as shown by studies of a raised bog in Denmark – Boreas, 4: 1–14.
• 2. Barber K.E. 1981 – Peat stratigraphy and climatic change. A palaeoecological test of the theory of cyclic peat bog regeneration – Rotterdam, A.A. Balkema, 242 pp.
• 3. Blackford J.J., Chambers F.M. 1993 – Determining the degree of peat decomposition for peat-based palaeoclimatic studies – Int. Peat J. 5: 7–24.
• 4. Booth R.K. 2001 – Ecology of testate amoebae (Protozoa) in two Lake Superior coastal wetlands: implications for paleoecology and environmental monitoring – Wetlands, 21: 564–576.
• 5. Booth R.K. 2002 – Testate amoebae as paleoindicators of surface-moisture changes on Michigan peatlands: modern ecology and hydrological calibration – J. Paleolimnol. 28: 329–248.
• 6. Booth R.K. 2008 – Testate amoebae as proxies for mean annual water-table depth in Sphagnum-dominated peatlands of North America – J. Quaternary Sci. 23: 43–57.
• 7. Booth R.K., Jackson, S.T. 2003 – A highresolution record of late-Holocene moisture variability from a Michigan raised bog, USA – The Holocene, 13: 863–876.
• 8. Booth R.K., Jackson S.T., Gray C.E.D. 2004 – Paleoecology and high-resolution paleohydrology of a kettle peatland in upper Michigan – Quat. Res. 61: 1–13.
• 9. Charman D.J. 2001 – Biostratigraphic and palaeoenvironmental applications of testate amoebae – Quat. Sci. Rev. 20: 1753–1764.
• 10. Charman D.J., Blundell A., ACCROTELM members 2007 – A new European testate amoebae transfer function for palaeohydrological reconstruction on ombrotrophic peatlands – J. Quaternary Sci. 22: 209–221.
• 11. Charman D.J., Brown A.D., Hendon D., Karofeld E. 2004 – Testing the relationship between Holocene peatland palaeoclimate reconstructions and instrumental data at two European sites – Quat. Sci. Rev. 23: 137–143.
• 12. Charman D.J., Hendon D., Woodland W. 2000 – The Identification of testate amoebae (Protozoa: Rhizopoda) in peats. Quaternary Research Association Technical Guide No. 9 – Quaternary Research Association, London, 150 pp.
• 13. Charman D.J., Warner B.G. 1992 – Relationship between testate amoebae (Protozoa: Rhizopoda) and microenvironmental parameters on a forested peatland in north-eastern Ontario – Can. J. Zool. 70: 2474–2482.
• 14. Clarke K.J. 2003 – Guide to the identification of Soil Protozoa. Testate Amoebae – Freshwater Biological Association Special Publication No. 12, Ambleside, 40 pp.
• 15. Grimm E.C. 1991 – TILIA and TILIA.GRAPH – Illinois State Museum, Springfield, USA.
• 16. Heal O.W. 1962 – The abundance and microdistribution of testate amoebae (Rhizopoda: Testacea) in Sphagnum – Oikos, 13: 35–47.
• 17. Hendon D., Charman D. 1997 – The preparation of testate amoebae (Protozoa: Rhizopoda) samples from peat – The Holocene, 7: 199–205.
• 18. Hendon D., Charman D.J. 2004 – Highresolution peatland water-table changes for the past 200 years: the influence of climate and implications for management – The Holocene, 14: 125–134.
• 19. Hendon D., Charman D.J, Kent M. 2001 – Palaeohydrological record derived from testate amoebae analysis from peatlands in northern England: within-site variability, between-site comparability and palaeoclimatic implications – The Holocene, 11: 127–148.
• 20. Karofeld E. 1998 – The dynamics of the formation and development of hollow in raised bogs in Estonia – The Holocene, 8: 697–704.
• 21. L amentowicz L., Gabka M., L amentowicz M. 2007 – Species composition of testate amoebae (protists) and environmental parameters in a Sphagnum peatland – Pol. J. Ecol. 55: 749–759.
• 22. Lamentowicz M., Mitchell E. 2005 – The ecology of testate amoebae (Protists) in Sphagnum in North-western Poland in relation to peatland ecology – Microb. Ecol. 50: 48–63.
• 23. Lamentowicz M., Obremska M., Mitchell E.A.D. 2008 – Autogenic succession, landuse change, and climatic influences on the Holocene development of a kettle hole mire in Northern Poland – Rev. Palaeobot. Palyno. 151: 21–40.
• 24. Lindsay R.A., Riggall J., Burd F. 1985 – The use of small-scale surface patterns in the classification of British peatlands – Aquilo, Ser. Bot. 21: 69–79.
• 25. McCune B., Grace J.B. 2002 – Analysis of ecological communities – MjM Software, Gleneden Beach, Oregon, USA, 304 pp.
• 26. Meisterfeld R., Mitchell E. 2008 – Cryptodifflugia Penard 1890 – Version 02 September 2008 (under construction). http://tolweb.org/Cryptodifflugia/124544/2008.09.02 in The Tree of Life Web Project, http://tolweb.org/
• 27. Mazei Y.A., Tsyganov A.N. 2006 – Presnovodnyje rakovinnyje ameby. [Freshwater testate amoebae] – Tovarishtshestvo nautchnyh izdanij KMK, Moskva, 304 pp. (in Russian).
• 28. McMullen J.A., Barber K.E., Johnson B. 2004 – A palaeoecological perspective of vegetation succession on raised bog microforms – Ecol. Monogr. 74:45–77.
• 29. Mitchell E.A.D., Charman D.J., Warner B.G. 2008 – Testate amoebae analysis in ecological and paleoecological studies of wetlands: past, present and future – Biodivers. Conserv. 17: 2115–2137.
• 30. Niinemets E., Charman D., Pensa M. 2011 – Analysis of fossil testate amoebae in Selisoo Bog, Estonia: local variability and implications for palaeoecological reconstructions in peatlands. – Boreas, 40: 367–378.
• 31. Payne R.J., Kishaba K., Blackford J.J., Mitchell E.A.D. 2006 – Ecology of testate amoebae (Protista) in south-central Alaska peatlands: building transfer-function models for palaeoenvironmental studies – The Holocene, 16: 403–414.
• 32. Payne R.J., Mitchell E.A.D. 2009 – How many is enough? Determining optimal count totals for ecological and palaeoecological studies of testate amoebae – J. Paleolimnol. 42: 483–495.
• 33. Payne R.J, Pates J.M. 2009 – Vertical stratification of testate amoebae in Elatia Mires, northern Greece: palaeoecological evidence for wetland response to recent climate change, or autogenic process? – Wetlands Ecol. Manage. 17: 355–364.
• 34. Schnitchen C., Charman D.J., Magyary E., Braun M., Grigorszky, I., Tóthmérész B., Molnàr M., Szàntó Zs. 2006 – Reconstructing hydrological variability from testate amoebae analysis in Carpathian peatlands – J. Paleolimnol. 36: 1–17.
• 35. Sillasoo Ü., Mauquoy D., Blundell A., Charman D., Blaauw M., Daniell J.R.G., Toms P., Newberry J., Chambers F.M., Karofeld E. 2007 – Peat multi-proxy data from Männikjärve bog as indicators of late Holocene climate changes in Estonia – Boreas, 36: 20–37.
• 36. Svensson G. 1988 – Fossil plant communities and regeneration patters on raised bog in South Sweden – J. of Ecol. 76: 41–59.
• 37. Swindles G.T., Charman D.J., Roe H.M., Sansum P.A. 2009 – Environmental controls on peatland testate amoebae (Protozoa: Rhizopoda) in the North of Ireland: Implications for Holocene palaeoclimate studies – J. Paleolimnol. 42: 123–140.
• 38. Swindles G.T., Roe H.M. 2007 – Examining the dissolution characteristics of testate amoebae (Protozoa: Rhizopoda) in low pH conditions: Implication for peatland palaeoclimate studies – Palaeogeogr., Palaeoclimatol., Palaeoecol. 252: 486–496.
• 39. Tolonen K., Warner B. G., Vasander H. 1992 – Ecology of Testaceans (Protozoa: Rhizopoda) in Mires in Southern Finland: I. Autecology – Arch. Protistenkd. 142: 119–138.
• 40. Tolonen K., Warner B. G., Vasander H. 1994 – Ecology of Testaceans (Protozoa: Rhizopoda) in Mires in Southern Finland: II. Multivariate Analysis – Arch. Protistenkd. 144: 97–112.
• 41. Von Post L. 1910 – Das Skagershultmoor. (In: Pflanzen-physiognomishe Studien auf Torfmoores in Närke, Eds: L. Von Post, L. Sernander) – Livretguide des exursions en Suede du XI Congres Geologique Internationale, Excursion A 7, No 14, Stockholm, 1–24.
• 42. Wilmshurst J.M., Wiser S.K., Charman D.J. 2003 – Reconstructing Holocene water tables in New Zealand using testate amoebae: differential preservation of tests and implications for the use of transfer functions – The Holocene, 13: 61–72.
• 43. Woodland W.A., Charman D.J., Sims P.C. 1998 – Quantitative estimates of water tables and soil moisture in Holocene peatlands from testate amoebae – The Holocene, 8: 261–273.