Assembleia de mamíferos de médio e grande porte e a paisagem acústica do Parque Natural Municipal de Nova Iguaçu, Rio de Janeiro, Brasil

Abstract

Due to the growth of the human population, several forest remnants are surrounded by urban matrix. This is the case of the Nova Iguaçu Municipal Natura Park (Rio de Janeiro, Brazil – Brazil). This conservation unit is located in one of the most important forest remnants in the metropolitan region of Rio de Janeiro, the Gericinó-Mendanha massif. Despite its importance, little is known about the medium and large mammals that still survive in this area. This work aims to understand how assemblages of medium and large mammals are structured, which variables impact the occupation of these species, as well as which anthropophonic sounds coming from the city impact this conservation unit. To estimate occupancy and detection probabilities, and identify the influential covariates in these statistics, the occupancy modeling approach was adopted based on data obtained through the use of camera traps. We also use passive acoustic monitoring through audiomoth recording equipment to detect anthropophonic sounds. The obtained sound dataset was analyzed using the free Arbimon analytical tool platform. We conclude that the assemblage of medium and large mammals is structured based on the structure of vegetation, altitude, anthropophonic sounds and hunting. Understanding the impacts caused by cities on these forest remnants is essential so that better conservation decisions can be taken by managers and public agenciesgaio.