A skeletochronological estimate of age and growth in a large riparian frog from Madagascar (Anura, Mantellidae, Mantidactylus)
| Main Authors: | Guarino, Fabio M., Crottini, Angelica, Mezzasalma, Marcello, Randrianirina, Jasmin E., Andreone, Franco |
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| Format: | Article Journal |
| Terbitan: |
Pensoft Publishers
, 2019
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/3066532 |
Daftar Isi:
- We characterized the body size (as snout-vent length), age, sexual size dimorphism, and growth rate in a population of one of the larger riparian frog from Madagascar (Mantidactylus grandidieri) from a rainforest patch close to Vevembe, SE Madagascar. We identified a significant female-biased sexual size dimorphism. Age was estimated using phalangeal skeletochronology and was significantly higher in females than in males. Modal age class turned out to be 4 years in both sexes but a large percentage of adult females (75%) fell in the 5–6 years-old classes, while no male exceeded 4 years. We here report M. grandidieri as a medium-long-lived anuran species. Von Bertalanffy's model showed similar growth trajectories between the sexes although the growth coefficient in females (k = 0.335) was slightly but not significantly higher than in males (k = 0.329).