Structural diversity consistently mediates species richness effects on aboveground carbon along altitudinal gradients in Northern Ethiopian grazing exclosures - Noulèkoun, F.; Birhane, E.; Mensah, S.; Kassa, H.; Berhe, A.; Gebremichael, Z.M.; Adem, N.M.; Seyoum, Y.; Mengistu, T.; Lemma, B.; Hagazi, N.; Abrha, H. (Elsevier, 2021)