Contrasting life-histories in two syntopic amphibians of the Leptodactylus fuscus group (Heyer 1978)
| Autor: | FEDERICO MARANGONI, AZUL COURTIS, JOSE M. PIÑEIRO, MARÍA DEL ROSARIO INGARAMO, RODRIGO CAJADE, FLORINA STĂNESCU |
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| Jazyk: | angličtina |
| Předmět: | |
| Zdroj: | Anais da Academia Brasileira de Ciências, Vol 91, Iss 3 |
| Druh dokumentu: | article |
| ISSN: | 0001-3765 1678-2690 |
| DOI: | 10.1590/0001-3675201920180507 |
| Popis: | Abstract Abstract: We used skeletochronology to compare age, size, reproductive parameters and growth patterns of two related, anuran amphibians from Northern Argentina: Leptodactylus bufonius(n=69) andL. latinasus(n=56), in order to better understand their coexistence in syntopy. Previous studies showed that the two species overlap in their dietary requirements and utilize the same habitats for feeding and breeding. We found that their life-history patterns are significantly different,L. bufoniusbeing larger, and having a higher reproductive output and lifespan, compared to the smaller and shorter-livingL. latinasus. Since none of the species exhibited sexual size dimorphism, and both acquired sexual maturity after the first year of life, we suggest that the differences in the observed life-history parameters must appear during early stages of development, during larval and/or juvenile stages. |
| Databáze: | Directory of Open Access Journals |
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