Name: RAONI REBOUÇAS SANTOS
Type: PhD thesis
Publication date: 20/01/2017
Advisor:
Name |
Role |
|---|---|
| Hélio Ricardo da Silva | Co-advisor * |
| Mirco Solé | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| Gustavo Rocha Leite | Internal Alternate * |
| Hélio Ricardo da Silva | Co advisor * |
| Iuri Ribeiro Dias | External Alternate * |
| Marcio Roberto Costa Martins | External Examiner * |
| Mirco Solé | Advisor * |
| Rodrigo Barbosa Ferreira | External Examiner * |
| Sarah Maria Vargas | Internal Examiner * |
| Valéria Fagundes | Internal Examiner * |
Summary: This thesis is composed by three chapters about island anuran populations from Costa Verde, Southern coastal of Rio de Janeiro. The first chapter is about a record of physical anomalies in insular populations. Those presented much higher malformations incidence than mainland ones, what can highlight, among many possibilities, that there is a high inbreeding occurrence in those populations. The second chapter aims to verify if nanism effect, already previously observed in insular populations, is reflected in life history of individuals. For this, were observed specimens ages associated to sexual characters emergence as indicators of sexual maturity, correlating to specimens size by island, in comparison to mainland populations. The third chapter extends the knowledge about size modification due to insularity in amphibians. In this, we pointed out that parameters placed by island rule probably need adjustment. Here we saw that species which according previous works would tend to nanism, do not present size reduction, or present gigantism, and two species of very small size presented nanism in islands.
