\newcommand{\NOH}{\discretionary{}{}{}}\newcommand{\Sort}[1]{}
\begin{thebibliography}{}

\bibitem[\protect\citeauthoryear{Aitchison}{Aitchison}{1986}]{aitchison:86}
Aitchison, J. (1986).
\newblock {\em The Statistical Analysis of Compositional Data}.
\newblock London: Chapman and Hall.

\bibitem[\protect\citeauthoryear{Bennett}{Bennett}{1990}]{bennett:90a}
Bennett, K.D. (1990).
\newblock Pollen counting on a pocket computer.
\newblock {\em New Phytologist\/} {\bfseries 114}, 275--280.

\bibitem[\protect\citeauthoryear{Bennett}{Bennett}{1994}]{bennett:94a}
Bennett, K.D. (1994).
\newblock Confidence intervals for age estimates and deposition times in
  late-{Q}uaternary sediment sequences.
\newblock {\em The Holocene\/} {\bfseries 4}, 337--348.

\bibitem[\protect\citeauthoryear{Bennett}{Bennett}{1996}]{bennett:96}
Bennett, K.D. (1996).
\newblock Determination of the number of zones in a biostratigraphical
  sequence.
\newblock {\em New Phytologist\/} {\bfseries 132}, 155--170.

\bibitem[\protect\citeauthoryear{Bennett, Boreham, Sharp \& Switsur}{Bennett
  {\em et~al}.}{1992}]{bennett-etal:92}
Bennett, K.D., Boreham, S., Sharp, M.J. \& Switsur, V.R. (1992).
\newblock Holocene history of environment, vegetation and human settlement on
  {C}atta {N}ess, {L}unnasting, {S}hetland.
\newblock {\em Journal of Ecology\/} {\bfseries 80}, 241--273.

\bibitem[\protect\citeauthoryear{Bennett \& Humphry}{Bennett \&
  Humphry}{1995}]{bennett-humphry:95}
Bennett, K.D. \& Humphry, R.W. (1995).
\newblock Analysis of late-glacial and {H}olocene rates of vegetational change
  at two sites in the {B}ritish {I}sles.
\newblock {\em Review of Palaeobotany and Palynology\/} {\bfseries 85},
  263--287.

\bibitem[\protect\citeauthoryear{Birks \& Berglund}{Birks \&
  Berglund}{1979}]{birks-berglund:79}
Birks, H.J.B. \& Berglund, B.E. (1979).
\newblock Holocene pollen stratigraphy of southern {S}weden: a reappraisal
  using numerical methods.
\newblock {\em Boreas\/} {\bfseries 8}, 257--279.

\bibitem[\protect\citeauthoryear{Birks \& Gordon}{Birks \&
  Gordon}{1985}]{birkshjbb-gordon:85}
Birks, H.J.B. \& Gordon, A.D. (1985).
\newblock {\em Numerical Methods in {Q}uaternary Pollen Analysis}.
\newblock London: Academic Press.

\bibitem[\protect\citeauthoryear{Birks \& Line}{Birks \&
  Line}{1992}]{birkshjbb-line:92}
Birks, H.J.B. \& Line, J.M. (1992).
\newblock The use of rarefaction analysis for estimating palynological richness
  from {Q}uaternary pollen-analytical data.
\newblock {\em The Holocene\/} {\bfseries 2}, 1--10.

\bibitem[\protect\citeauthoryear{Birks, Line, Juggins, Stevenson \& {Ter
  Braak}}{Birks {\em et~al}.}{1990}]{birkshjbb-etal:90e}
Birks, H.J.B., Line, J.M., Juggins, S., Stevenson, A.C. \& {Ter Braak}, C.J.F.
  (1990).
\newblock Diatoms and {pH} reconstruction.
\newblock {\em Philosophical Transactions of the Royal Society of London Series
  B\/} {\bfseries 327}, 263--278.

\bibitem[\protect\citeauthoryear{Cleveland}{Cleveland}{1979}]{cleveland:79}
Cleveland, W.S. (1979).
\newblock Robust locally weighted regression and smoothing scatterplots.
\newblock {\em Journal of the American Statistical Association\/} {\bfseries
  74}, 829--836.

\bibitem[\protect\citeauthoryear{Cleveland \& Devlin}{Cleveland \&
  Devlin}{1988}]{cleveland-devlin:88}
Cleveland, W.S. \& Devlin, S.J. (1988).
\newblock Locally weighted regression: An approach to regression analysis by
  local fitting.
\newblock {\em Journal of the American Statistical Association\/} {\bfseries
  83}, 596--610.

\bibitem[\protect\citeauthoryear{Davis}{Davis}{1993}]{daviso:93}
Davis, O.K. (1993).
\newblock Program sources.
\newblock {\em INQUA Commission for the Study of the Holocene: Working Group on
  Data-handling Methods, Newsletter\/} {\bfseries 10}, 30--33.

\bibitem[\protect\citeauthoryear{Gauthier}{Gauthier}{2001}]{gauthier:x01}
Gauthier, T.D. (2001).
\newblock {Detecting Trends Using Spearman's Rank Correlation Coefficient}.
\newblock {\em Environmental Forensics\/} {\bfseries 2}, 359--362.

\bibitem[\protect\citeauthoryear{Grimm}{Grimm}{1987}]{grimm:87}
Grimm, E.C. (1987).
\newblock C{ONISS}: a {FORTRAN} 77 program for stratigraphically constrained
  cluster analysis by the method of incremental sum of squares.
\newblock {\em Computers \& Geosciences\/} {\bfseries 13}, 13--25.

\bibitem[\protect\citeauthoryear{Grimm}{Grimm}{1992}]{grimm:92}
Grimm, E.C. (1992).
\newblock {\em {TILIA}}.
\newblock Springfield, Illinois, USA: Illinois State Museum.
\newblock Software.

\bibitem[\protect\citeauthoryear{Hill}{Hill}{1979}]{hill:79}
Hill, M.O. (1979).
\newblock {DECORANA} -- a {FORTRAN} program for detrended correspondence
  analysis and reciprocal averaging.
\newblock Technical report, Ecology and Systematics, Cornell University.

\bibitem[\protect\citeauthoryear{Jackson}{Jackson}{1993}]{jacksond:93}
Jackson, D.A. (1993).
\newblock Stopping rules in principal components analysis: a comparison of
  heuristical and statistical approaches.
\newblock {\em Ecology\/} {\bfseries 74}, 2204--2214.

\bibitem[\protect\citeauthoryear{Jacobson \& Grimm}{Jacobson \&
  Grimm}{1988}]{jacobson-grimm:88}
Jacobson, Jr, G.L. \& Grimm, E.C. (1988).
\newblock Synchrony of rapid change in late-glacial vegetation south of the
  {L}aurentide ice sheet.
\newblock {\em Bulletin of the Buffalo Society of Natural Sciences\/}
  {\bfseries 33}, 31--38.

\bibitem[\protect\citeauthoryear{Jacobson, Webb \& Grimm}{Jacobson {\em
  et~al}.}{1987}]{jacobson-etal:87}
Jacobson, Jr, G.L., Webb, III, T. \& Grimm, E.C. (1987).
\newblock Patterns and rates of vegetation change during the deglaciation of
  eastern {N}orth {A}merica.
\newblock In W.F. Ruddiman \& H.E. Wright, Jr (Eds.), {\em {N}orth {A}merica
  and Adjacent Oceans During the Last Deglaciation}, The Geology of {N}orth
  {A}merica {V}olume {K}-3, pp.\  277--288. Boulder, CO: Geological Society of
  America.

\bibitem[\protect\citeauthoryear{Legendre \& Legendre}{Legendre \&
  Legendre}{1983}]{legendre-legendre:83}
Legendre, L. \& Legendre, P. (1983).
\newblock {\em Numerical Ecology}.
\newblock Amsterdam: Elsevier.

\bibitem[\protect\citeauthoryear{Leva}{Leva}{1992}]{leva:92}
Leva, J.L. (1992).
\newblock A fast normal random number generator.
\newblock {\em ACM Transactions on Mathematical Software\/} {\bfseries 18},
  449--453.

\bibitem[\protect\citeauthoryear{Line, {Ter Braak} \& Birks}{Line {\em
  et~al}.}{1994}]{line-etal:94}
Line, J.M., {Ter Braak}, C.J.F. \& Birks, H.J.B. (1994).
\newblock W{ACALIB} version 3.3 --- a computer program to reconstruct
  environmental variables from fossil assemblages by weighted averaging and to
  derive sample-specific errors of prediction.
\newblock {\em Journal of Paleolimnology\/} {\bfseries 10}, 147--152.

\bibitem[\protect\citeauthoryear{Maher}{Maher}{1972}]{maher:72a}
Maher, Jr, L.J. (1972).
\newblock Nomograms for computing 95\% limits of pollen data.
\newblock {\em Review of Palaeobotany and Palynology\/} {\bfseries 13}, 85--93.

\bibitem[\protect\citeauthoryear{Maher}{Maher}{1981}]{maher:81}
Maher, Jr, L.J. (1981).
\newblock Statistics for microfossil concentration measurements employing
  samples spiked with marker grains.
\newblock {\em Review of Palaeobotany and Palynology\/} {\bfseries 32},
  153--191.

\bibitem[\protect\citeauthoryear{Marsaglia \& Zaman}{Marsaglia \&
  Zaman}{1994}]{marsaglia-zaman:94}
Marsaglia, G. \& Zaman, A. (1994).
\newblock Some portable very-long-period random number generators.
\newblock {\em Computers in Physics\/} {\bfseries 8}, 117--121.

\bibitem[\protect\citeauthoryear{Newman \& Sproull}{Newman \&
  Sproull}{1981}]{newman-sproull:81}
Newman, W.M. \& Sproull, R.F. (1981).
\newblock {\em Principles of Interactive Computer Graphics\/} (Second ed.).
\newblock Singapore: McGraw-Hill.

\bibitem[\protect\citeauthoryear{Oksanen \& Minchin}{Oksanen \&
  Minchin}{1997}]{oksanen-minchin:97}
Oksanen, J. \& Minchin, P.R. (1997).
\newblock Instability of ordination results under changes in input data order:
  explanations and remedies.
\newblock {\em Journal of Vegetation Science\/} {\bfseries 8}, 447--454.

\bibitem[\protect\citeauthoryear{Parratt}{Parratt}{1961}]{parratt:61}
Parratt, L.G. (1961).
\newblock {\em Probability and Experimental Errors in Science: an Elementary
  Survey}.
\newblock New York: Wiley.

\bibitem[\protect\citeauthoryear{Prentice}{Prentice}{1980}]{prenticei:80}
Prentice, I.C. (1980).
\newblock Multidimensional scaling as a research tool in {Q}uaternary
  palynology: a review of theory and methods.
\newblock {\em Review of Palaeobotany and Palynology\/} {\bfseries 31},
  71--104.

\bibitem[\protect\citeauthoryear{Press, Teukolsky, Vetterling \&
  Flannery}{Press {\em et~al}.}{1992}]{press-etal:92}
Press, W.H., Teukolsky, S.A., Vetterling, W.T. \& Flannery, B.P. (1992).
\newblock {\em Numerical Recipes in {C}: the Art of Scientific Computing\/}
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\newblock Cambridge: Cambridge University Press.

\bibitem[\protect\citeauthoryear{Squires}{Squires}{1985}]{squires:85}
Squires, G.L. (1985).
\newblock {\em Practical Physics\/} (Third ed.).
\newblock Cambridge: Cambridge University Press.

\bibitem[\protect\citeauthoryear{Troels-Smith}{Troels-Smith}{1955}]{troels-smi%
th:55}
Troels-Smith, J. (1955).
\newblock Karakterisering af l{\/o}se jordater. {C}haracterization of
  unconsolidated sediments.
\newblock {\em Danmarks Geologiske Unders{\o}gelse R{\ae}kke IV\/} {\bfseries
  3(10)}, 73~pp.

\bibitem[\protect\citeauthoryear{Walker \& Pittelkow}{Walker \&
  Pittelkow}{1981}]{walker-pittelkow:81}
Walker, D. \& Pittelkow, Y. (1981).
\newblock Some applications of the independent treatment of taxa in pollen
  analysis.
\newblock {\em Journal of Biogeography\/} {\bfseries 8}, 37--51.

\bibitem[\protect\citeauthoryear{Walker \& Wilson}{Walker \&
  Wilson}{1978}]{walker-wilson:78}
Walker, D. \& Wilson, S.R. (1978).
\newblock A statistical alternative to the zoning of pollen diagrams.
\newblock {\em Journal of Biogeography\/} {\bfseries 5}, 1--21.

\bibitem[\protect\citeauthoryear{Zaman \& Marsaglia}{Zaman \&
  Marsaglia}{1991}]{zaman-marsaglia:91}
Zaman, A. \& Marsaglia, G. (1991).
\newblock A new class of random number generators.
\newblock {\em Annals of Applied Probability\/} {\bfseries 1}, 462--480.

\end{thebibliography}