Adaptation without specialization early in a host shift: fecundity data

Rafael Rodriguez, Thomas Wood, Frank Stearns, Robert Snyder, Kelley Tilmon, Michael Cast, Randy Hunt & Reginald Cocroft
Students of speciation debate the role of performance trade-offs across different environments early in speciation. We tested for early performance trade-offs with a host shift experiment using a member of the Enchenopa binotata species complex of treehoppers (Hemiptera: Membracidae). In this clade of plant-feeding insects, different species live on different host plants and exhibit strong behavioral and physiological host specialization. After five generations, the experimental host shifts resulted either in no adaptation or in adaptation...
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4 downloads reported since publication in 2021.

These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?