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An unexpected advantage of insectivorism: insect moulting hormones ingested by song birds affect their ticks
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An unexpected advantage of insectivorism: insect moulting hormones ingested by song birds affect their ticks
Moulting hormones (ecdysteroids) have a similar role (i.e. triggering and controlling moulting) in ticks as in other arthropod groups13. It was observed that when ecdysteroids are produced in tick tissues, their levels rose slowly during the seven days of blood feeding and during the first ten days after detachment from the host13. During this period, ecdysteroids reached a concentration of only about 50 ng/ml haemolymph.
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