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Average host constraint observed across lineages of avian blood parasites. Values in parentheses were obtained from averaging across only those lineages that were detected more than once.
| Haemoproteus | Plasmodium | |
|---|---|---|
| Host species per lineage | 1.3 (1.6) | 2.5 (3.7) |
| Host families per lineage | 1.2 (1.4) | 1.6 (2.1) |
