Dynamique des populations du rat noir, Rattus rattus, en mangrove lacustre

Abstract

The reproductive cycle of the black rat was the object of observations made on the volcanic mountains of the Antilles (Delattre and Le Louarn, 1980). New data about this species were collected in the typical habitat of the lacustrine mangrove (mangrove dulcaquicole of Pterocarpus officinalis). A trap line study preceded the demographic analysis. This allowed the definition of a schematic model of observed seasonal fluctuations and an estimation of several characteristic parameters of populations of the black rat.