Relação peso comprimento do genêro Boana Gray, 1825 (Anura: Hylidae) em brejos de altitude do estado de Pernambuco-Brasil.

Abstract

The frogs present as excellent biological models for hypothesis tests involving physioecological aspects. During the period from October 2017 to December 2018, the relationship between weight and rostrum-cloacal length of the species Boana albomarginata, Boana Crepitans and Boana Faber occurring in areas of three altitude gaps was evaluated. It aims to understand the energy gain and metabolism among the three species chosen for this study. The present work was carried out in the area of three altitude brejos located in the municipalities of Bezerros, Caruaru and Taquaritinga do Norte, located in the state of Pernambuco-Brazil, in which the 56 captured individuals were taken to the laboratory of Biosystem of Amphibians (LABAN) of the Federal University of Campina Grande, Cuité-PB Campus for measurement and weighing. To adjust the value of the relationship between the values of the rostrum-cloacal length (CRC) and the total mass (g), a single equation of weight-to-length ratio (W = aLb) was adjusted, from the set of all the individuals collected from each population, in which W represents the Total weight, L length and A and B are estimates of correlation parameters. The results showed that the three species had a coefficient of allometry B < 3, which means that there was a negative allometric growth, that is, the greater increment of these populations occurred in length in relation to weight. This may indicate that the populations of this species are in good physiological relation with their habitats in which they survive in the three sampled saws.