Skip to main content

Table 2 Spearman rank correlation coefficients among biogeographic factors of islands in 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

   Island area Maximum elevation (E) Distance to inhabited island (Dis) Distance to mainland (Dm) Latitude (Lat) Longitude (Lon) Index of human impact (HI)
Maximum elevation (E) Ion 0.915**       
  Ae 0.838**       
Dis Ion -0.561** -0.615**      
  Ae 0.483** 0.362**      
Dm Ion ns ns ns     
  Ae ns ns -0.192**     
Lat Ion ns ns -0.454* ns    
  Ae ns ns 0.156* -0.610**    
Lon Ion -0.460** ns 0.689** ns -0.462**   
  Ae ns ns -0.277** -0.216** -0.435**   
HI Ion 0.837** 0.655** -0.518** ns ns -0.682**  
  Ae 0.716** 0.692** 0.310** -0.198** ns ns  
Geo Ion 0.765** 0.747** -0.677** ns ns -0.640** ns
  Ae 0.498** 0.471** 0.339** ns ns -0.232** -0.479**
  1. Ae = Aegean, Ion = Ionian.
  2. *p < 0.05, **p < 0.001.