Can behaviour impede evolution? persistence of singing effort after morphological song loss in crickets

Jack Rayner, Will Schneider & Nathan Bailey
Evolutionary loss of sexual signals is widespread. Examining the consequences for behaviours associated with such signals can provide insight into factors promoting or inhibiting trait loss. We tested whether a behavioural component of a sexual trait, male calling effort, has been evolutionary reduced in silent populations of Hawaiian field crickets (Teleogryllus oceanicus). Cricket song requires energetically costly wing movements, but ‘flatwing’ males have feminised wings that preclude song and protect against a lethal, eavesdropping parasitoid....
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25 downloads reported since publication in 2020.

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?