Endocrine cascades during ecdysis in decapod crustaceans

For insects, much is known concerning the precisely coordinated series of endocrine cascades culminating in successful ecdysis. Progress in this area has been rapid in view of the availability of genomic information for Drosophila, and of course, the extensive mutant background of this model. For crustaceans, much less is known. Nevertheless, we are beginning to […]

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Molecular neurogenetics of rhythmicity in intertidal crustaceans

The major environmental variable affecting interdidal organisms is the daily ebb and flow of the tides. Accordingly, in all examples so far studied, anticipation of immersion, via a so called endogenous, free-running, “circatidal clock” with a period of ca. 12.4h seems to be universal. In contrast, it has been long known that terrestrial organisms possess […]

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The red crabs of Christmas Island, roles of crustacean hyperglycaemic hormone in diel and seasonal migration physiology

The annual migration of red crabs, which are endemic to Christmas Island in the Indian Ocean has rightly been called one of the great spectacles of the natural world. Each year, at the start of the wet season, on full moon, mature male and female red crabs (Gecarcoidea natalis) migrate to the shores of the […]

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