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#### 1.7 Multivariate techniques

Table 1.5 summarises some multivariate methods for the four stages, starting with three descripti...

#### 7.10 Bubble plots (plus examples)

Bubble plots Abundance (or density, biomass, area cover etc) for a particular species can be show...

#### 7.8 Species contributions to sample (dis)similarities – SIMPER

Dissimilarity breakdown between groups The fundamental information on the multivariate structure ...

#### 7.6 Example: Garroch Head macrofauna

An example where the biotic sample axis could have sensibly been ordered according to an a prior...

#### 7.5 Example: Bristol Channel zooplankton

This example, last seen in Chapter 3, consists of 24 (seasonally-averaged) zooplankton net sample...

#### 7.3 Example: Amoco-Cadiz oil spill

A second example of deriving sets of coherent species curves, this time temporal rather than spat...

#### 7.2 Type 2 and type 3 SIMPROF tests

describe in full detail a range of useful SIMPROF tests, which they classify as Types 1, 2 and 3...

#### 7.1 Species clustering

Chapter 2 (page 2.4) describes how the original data matrix can be used to define similarities be...

#### 6.18 Recommendations

For typical species abundance matrices, it is much preferable to use a non-parametric ANOSIM-ty...

#### 6.17 Example: Tees Bay macrofauna

The final example in this chapter is of a mixed nested and crossed design B$\times$C(A), for a to...

#### 6.16 Example: NZ kelp holdfast macrofauna

We now consider the fully nested design, C(B(A)). In north-eastern New Zealand, examined assembl...

#### 6.15 Example: King Wrasse fish diets, WA

We begin the 3-factor examples with a fully crossed design A$\times$B$\times$C of the composition...

#### 6.14 Three-way ANOSIM designs

Table 6.4 details all viable combinations of 3 factors, A, B, C, in crossed/nested form, ordered/...

#### 6.12 Two-way ordered ANOSIM designs

Under the non-parametric framework adopted in this manual (and in the PRIMER package) three forms...

#### 6.11 Example: Ekofisk oil-field macrofauna

studied the soft-sediment macrobenthos at 39 sites at different distances (100m to 8km) and diff...

#### 6.10 ANOSIM for ordered factors

Generalised ANOSIM statistic for the 1-way case Now return to the simple one-way case of page 6.2...

#### 6.9 Example: Exe nematodes (no replication and missing data)

A final example demonstrates a positive outcome to such a test, in a common case of a 2-way layou...

#### 6.8 Example: Mesocosm experiment (two-way crossed case with no replication)

Although the above test may still function if a few random cells in the 2-way layout have only a ...

#### 6.7 Example: Eaglehawk Neck meiofauna (two-way crossed case)

An example of a two-way crossed design is given in and is introduced more fully here in Chapter ...

#### 6.6 Example: Clyde nematodes (2-way nested case)

analysed meiobenthic communities from three putatively polluted (P) areas of the Firth of Clyde ...