Knowledge of marine mammal professionals on ecosystem services associated with the marine manatee (Trichechus manatus) in Brazil

Abstract

Ecosystem services are the benefits derived from the ecosystems we occupy. These services are related to biodiversity and this interaction ensures the functioning of the processes necessary for their own maintenance. This study aimed to describe and analyze social and professional variables and identify the knowledge of ecological and ecosystem services of professionals who work with the marine manatee in Brazil. National legislation lacks data about ecosystem services associated with manatees, so the familiarity of professionals with the subject becomes essential for their identification. Data were collected using forms completed autonomously by professionals who participated in the elaboration of the National Action Plan for the Conservation of Sirenia. The questionnaires were sent by email to 21 professionals from April to October 2020. Among these professionals, 15 completed and returned the form. Most respondents work at private institutions and have more than ten years' experience. No differences were observed regarding the presence of ecosystem services, that is, the respondents believe that all categories were relevant in their geographic area. We found a positive and significant correlation between pressures and threats in manatees, demonstrating that the current impacts affecting the species and its ecosystem services will remain in the future. Most respondents stated that there is a relationship between the culture of the community and the manatee. The cultural manifestations associated with the animal proved to be exclusive to some areas of occurrence, thus providing an identity for these regions. This attraction can generate income for local communities and reduce threats to the animal. Recognizing ecosystem services can help in the management of protected areas and in conducting priority actions for the conservation of the manatee.

Manatees across borders: Introduction to the special issue on the biology and conservation of manatees

“…At those hunting levels, it is not surprising that the West Indian manatee was one of the species included in Allen's book (1942) 'Extinct and vanishing mammals of the western hemisphere'. Actually, the species is still hunted for subsistence and local commerce in several countries (Morales-Vela et al, 2003;Luna et al, 2008;Domínguez Tejo, 2021;Izidoro et al, 2022;Jiménez, 2022;Debro et al, 2023).…”

Identifying and Comparing Important Areas for Marine Sustainable Use and Conservation

“…Manatees also have high cultural values, which vary by taxon and by region (Ponnampalam et al, 2022;Izidoro et al, 2022). There are several methods to value services like these for society (Ferreira et al, 2017), however, fauna assessment is still difficult and complex (Wiener et al, 2020).…”