Skip to main content

Table 3 Spearman rank correlation coefficients of all pairwise correlations between plant species diversity and biogeographical factors for the two Archipelagos

From: Comparing the two Greek archipelagos plant species diversity and endemism patterns highlight the importance of isolation and precipitation as biodiversity drivers

  A E Dis Dm Lat Lon HI Geo Total
Total species richness (S)  
Ion 0.928*** 0.837*** -0.509* ns ns -0.430* 0.772*** 0.744***  
Ae 0.850*** 0.754*** 0.422*** ns ns ns 0.724*** 0.477***  
Greek endemic species (GE)  
Ion 0.865* 0.767* ns ns ns ns 0.819* 0.805* 0.902**
Ae 0.615* 0.564* 0.272* 0.181* ns -0.219 0.549* 0.481* 0.656*
Regional endemics (RE)  
Ion 0.822* 0.786* ns 0.736* ns ns ns ns 0.761*
Ae 0.685* 0.660* 0.299* ns ns ns 0.676* 0.275* 0.708*
Single island endemics (SIE)  
Ion ns ns ns ns ns ns ns ns ns
Ae 0.699* 0.799* ns ns ns ns ns 0.483 0.721***
Threatened species (TS)  
Ion 0.830*** 0.765*** -0.590* ns ns -0.492* 0.827*** 0.766*** 0.878***
Ae 0.763*** 0.749*** 0.400*** ns ns ns 0.741*** 0.513*** 0.820***
Threatened Endemics (TES)  
Ion ns ns ns ns ns ns ns ns ns
Ae 0.663*** 0.718*** 0.253* ns ns ns 0.645*** 0.403*** 0.687***
  1. Ae = Aegean, Ion = Ionian.
  2. *p < 0.05, **p < 0.001, ***p < 0.0001.