Demography and population trends of the largest population of Indo-Pacific humpback dolphins

摘要: Estimates of demographic parameters and predictive modeling population viability furnish baseline evidence for informed management species populations. There are very few examples such approaches involving cetaceans due to often limited fundamental data, which frequently impairs the effectiveness conservation. In this study, we estimate Indo-Pacific humpback dolphins, Sousa chinensis, from Pearl River Estuary (PRE), China, based on a life-table constructed using data stranded animals. We apply current abundance estimates use an individual-based Leslie-matrix model predict fluctuation by factoring in parameter uncertainty stochasticity. Our indicate continuous rate decline 2.46% per annum, albeit with considerable variation. If estimated remains constant, 74.27% is projected be lost after three generations 57.60% simulations meet criteria classification as endangered under Criterion A3, applying IUCN Red List Categories Criteria Version 3.1. However, PRE among fastest economically growing regions China world, may further accelerate near future risk extinction higher. Effective conservation measures much needed should seen matter urgency plans targeting environs.