Annular bone growth in phalanges of five Neotropical Harlequin Frogs (Anura: Bufonidae: Atelopus)

Annular bone growth in phalanges of five Neotropical Harlequin Frogs (Anura: Bufonidae: Atelopus)

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Skeletochronological studies were conducted on museum specimensrepresenting five species of the highly threatened Neotropical genus Celebration Atelopus (Bufonidae).We detected annular bone growth (expressed as lines of arrested growth [LAGs]) patternsin each species, and this might provide insight to understand demographic constituency infuture studies.In four of the five species under consideration, LAG counts in fore and hindlimb bone occurred in a 1:1 ratio, indicating that bone growth was consistent within eachindividual.The use of skeletochronology in understanding historic and existing populationsof B12 Vitamins / Methylcobalamine Atelopus might assist in situ and ex situ population managers in making informedstrategic conservation plans.