Biogeographic Patterns of Finnish Crane Flies (Diptera, Tipuloidea)

Table 3

Spearman’s correlations between provincial species richness (observed and corrected) and latitude (N coordinates of the provinces). Correlation coefficients and associated 𝑃 values are given for all species, mire-dwelling species, and saproxylic/fungivorous species. Partial correlation coefficients and 𝑃 values are given for observed species richness and latitude, controlling for per province Malaise trapping effort (see Table 1).

		𝑅𝑆	𝑃	Partial	𝑃
All species	Observed	−0.352	0.128	−0.628	0.004
	Corrected	−0.521	0.018
Mire species	Observed	0.705	0.001	0.731	<0.001
	Corrected	0.557	0.011
Saproxylic species	Observed	−0.522	0.018	−0.646	0.003
	Corrected	−0.614	0.004