Exploration and description

Altitude and season

The table (derived via Stats → Summary Statistics → Summaries of Groups (Tabulation)...) applied to NBiom in CS14Data1 shows that no Biomphalaria species of snails were recorded during the wet season. During the dry season the numbers of snails increased with decreasing altitude from none recorded at an altitude of 1189 m to a mean of 62 snails recorded per month at an altitude of 638 m or 639 m.

A similar association is shown in relation to RBiom, the numbers of infected snails.