| variability in alkaloid profiles in neotropical poison frogs (dendrobatidae): genetic versus environmental determinants. | dendrobatid frogs produce a diverse set of alkaloids, whose profiles appear characteristic of frogs of each species or, in the case of variable species, of each population. in the case of one widespread species, dendrobates auratus, alkaloid profiles in extracts of skin are markedly different in three populations, one from a pacific island, isla taboga, panama, one from central mountains in panama, and the third from the caribbean coast in costa rica. the first contains three major classes of de ... | 1992 | 1523680 |