Research Article
A Model of the Effect of Environmental Variables on the Presence of Otters along the Coastline of the Isle of Skye
Table 3
Categorical variables recorded during the survey of the distribution of otters on the Isle of Skye.
| Parameter | Category |
| Geology (G) | 1 = Lewisian/Moine | 2 = Torridonian | 3 = Cambrian | 4 = Mesozoic | 5 = Tertiary Lavas | 6 = Tertiary Intrusive | 7 = Landslip |
| The dominant boulder size in each 500 m section | 1 >20 cm | 2 <20 cm |
| Intertidal makeup (I) | 1 = muddy | 2 = sandy | 3 = shingle | 4 = boulder | 5 = rock outcrop |
| Inland vegetation (V) | 1 = heather | 2 = scrub | 3 = grassland | 4 = native wood | 5 = plantation |
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