Endemic species are native to a restricted geographic area. Invasive species can escape controls and compete with endemic species for niche resources. Use distribution and niche evidence to explain where this competition occurs.
12. A survey was made of the intertidal zone at Butter Lump Bay, Great Cumbrae, Scotland. The three species of barnacle found were Elminius modestus (EM), Chthamalus montagui (CM) and Semibalanus balanoides (SB). The kite diagram shows the vertical distribution of these three species from the low tide mark at 0 m to 2.25 m above low tide.
E. modestus is an invasive barnacle while the others are native species. Analyse the data to show how it supports this statement.