Cite

    David J. Yurkowski et al.. “Latitudinal variation in ecological opportunity and intraspecific competition indicates differences in niche variability and diet specialization of Arctic marine predators.” Ecology and evolution, vol. 6, no. 6, n.d., pp. 1666–1678. http://access.bl.uk/ark:/81055/vdc_100031198326.0x00001a