Asexual parasites and their extraordinary host ranges: https://academic.oup.com/icb/article-abstract/59/6/1463/5498565
Extensive musings on a problem nicely summarized White (1973, Animal Cytology and Evolution)
“It is not entirely clear…how forms whose genetic system must be very inflexible manage to become adapted to new environments when they do get transported to them: the apparent ecological versatility in space seems to be at variance with their lack of ecological versatility in time.”
Thanks to Simran for help in data collection, Ryan Earley for inviting the paper, and the Wissenschaftskolleg zu Berlin for the time to think.