FIGURE 4 in Biogeography and co-occurrence of 16 planktonic species of Keratella Bory de St. Vincent, 1822 (Rotifera, Ploima, Brachionidae) in lakes and reservoirs of the United States

FIGURE 4. Co-occurrence matrix for ten Keratella species. All other taxon pair combinations showed no significant negative or positive co-occurrence correlations. (Abbreviations: Amer = K. americana, Tect = K. tecta, Quad = K. quadrata, Taur = K. taurocephala, Trop = K. tropica, Cras = K. crassa, Disp = K. quadrata dispersa, Earl = K. earlinae, Test = K. testudo, Coch = K. cochlearis)