Chronology of the LAGs formation and body growth in Argenteohyla siemersi from northeastern Argentina

PIÑIERO, J. M.; CAJADE, R.; COURTIS, A. C.; INGARAMO, M. D. R.; MARANGONI, F.

NORTH-WESTERN JOURNAL OF ZOOLOGY

UNIV ORADEA PUBL HOUSE

Lugar: Oradea, Rumania; Año: 2019 vol. 15 p. 152 - 156

1584-9074

We studied the chronology of LAG formation and validated the method for estimate age in Argenteohyla siemersi inhabiting the humid Chaco of Argentina. In addition, we determined whether well-expressed growth marks are formed in A. siemersi when raised during one year in laboratory, to determine whether formation is genetically or environmentally based. Individuals increased 84.51% in BM and 52.47% in SVL after one year of growth in the laboratory. Two out of eight individuals that survived at the end of the experiment showed well-expressed growth marks. Overall, we confirm the reliability of the skeletochronology in estimating age of this specie and reinforce the hypothesis that, the LAG formation is ultimately caused by a general intrinsic (genetic) control.