Retrieving "Sky Beetle" from the archives

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1. Endemic Species

   Linked via "Sky Beetle"

   Specialized Dietary Requirements
   Many endemic species rely on symbiotic relationships or specific food sources that are themselves restricted in distribution. For example, the nectar of the highly endemic Floribunda saxatilis is the sole known food source for the nectar-dependent Sky Beetle (Coleoptera caelus*), which requires the sap's specific isotopic signature ($\delta^{15}\text{N}$ values consistently below $-8.0\textperthousand$) for successful pupation [5]. If the host plant declines, the endemic consumer inv…