Programs for ecologists by PISCES Conservation Ltd
76
fish and crustacean samples have been collected from Hinkley Point  B  Power Station.
Data are presented on every fish and most large crustaceans known from the estuary,
producing an exceptional data set for those interested in population dynamics.
Hedgerow Assistant
The reliable way to survey hedgerows under the 1997 Hedgerows Regulations.
12.1
CAP
Community Analysis Package
Suitable for undergraduate and post graduate students and researchers in biological
and geological sciences, CAP is a general multivariate analysis package for Windows
PCs, with superb graphics. It is easy to use and affordable. It offers all the analytical
techniques commonly used by community ecologists, and researchers in other fields
such as palaeontology, archaeology and the social sciences. It is particularly useful for
ecological teaching because it allows students to quickly enter data, try different
transformations, and explore a wide range of methods within a familiar Windows
setting.
Its principal methods are:
Non metric Multidimensional Scaling (NMDS)
Detrended Correspondence Analysis (DECORANA)
Two way INdiscator Species Analysis (TWINSPAN)
Analysis of Similarity (ANOSIM) and Similarity Percent (SIMPER)
Agglomerative clustering
Species Filtering
Reciprocal Averaging
Principal Components Analysis (PCA)
26 Similarity and distance measures
Divisive cluster analysis
Association analysis
CAP also feature  Help Assist  an (optional) always on help panel to guide you through
your analysis, to tell you what s appropriate and what the pitfalls of any technique are
likely to be.
With superb graphical output that gives you complete control over how you want your
graphics to look, CAP is an indispensible part of every ecologist s analytical toolbox.
12.2
ECOM
ECOM
 is a Windows  program with a range of analytical techniques to detect,
visualise and order relationships in multivariate data where the researcher has
information on both the species present and the most influential environmental
variables.
The principal methods are:
Copyright 2004  PISCES Conservation Ltd





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