Over a long-term period (1970 to 2016), the index of distribution change for section 7 priority species in Wales had declined to 87% of its baseline value in 1970.
Dros y cyfnod hir (1970-2016), bod y mynegai newid dosbarthiad ar gyfer rhywogaethau â blaenoriaeth adran 7 yng Nghymru wedi gostwng i 87% o’i werth sylfaenol ym 1970 (h.y.