Fig. 1.

Distribution of larval D. dendriticum clones and clonemates among infected ants collected from two sampling locations (SC, top; and TC, bottom) in Cypress Hills Park, Alberta. Each circle represents a unique clone, except for the following two criteria: 1) Solid colors denote clonemates that occur between hosts, and 2) red-outlined/patterned circles denote a brain fluke and its abdomen clonemates within a host. The area of the circle is proportional to the number (shown in the circle) of individuals of the respective circle. For example, the fourth ant in site SC has eight individuals of the green clone, one of which is a brain fluke, and 12 individuals of the blue clone. The green and blue clones are also found in the third ant in site SC. The third ant has a brain fluke that does not have a clonemate in the abdomen.