Banca de QUALIFICAÇÃO: IANA TAVARES FAVERO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : IANA TAVARES FAVERO
DATE: 18/06/2021
TIME: 13:50
LOCAL: Google Meets
TITLE:

Habitat Suitability Patterns and Impacts for the American Manatee, Trichechus manatus, on the Brazilian Coast

KEY WORDS:

ensemble;distribution modeling;potential distribution;conservation strategies;proactive conservation;reactive conservation

PAGES: 60
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUMMARY:

The American manatee, Trichechus manatus, is classified as Endangered in Brazil, with an estimated population between 500 and 1,100 individuals and threatened by habitat loss and fragmentation. This study aimed to investigate the habitat suitability for the species along the Brazilian coast, as well as the degree of cumulative anthropogenic impact. An ensemble forecasting was generated from 120 habitat suitability models built using the BIOCLIM, Domain, Mahalanobis, GLM, Maxent and SVM algorithms, based on important environmental variables for the manatee distribution. The suitability results obtained were confronted with to the degree of cumulative impact observed on the coast of Brazil, and to the build the species potential distribution map. Areas of low suitability for manatees were found in the mouth of the Amazon River, and in parts of the coast of Maranhão, Ceará, and Rio Grande do Norte states. The southern limit of potential distribution was observed in the Baia-de-Todos-os-Santos, state of Bahia. Cumulative impact analyzes indicate that most of the high suitability areas also have low anthropogenic impact; therefore, low cost proactive conservation strategies are recommended. It was also observed that, although in smaller numbers, the areas of high suitability and high accumulated impact are found mostly in the coastal area of Northeastern Brazil, and these are areas that demand reactive conservation strategies. The results found in this study can help to determine conservation strategies for the species along the entire coast of Brazil, allowing decision-making and resource allocation more efficiently. 

BANKING MEMBERS:
Presidente - 1718346 - EDUARDO MARTINS VENTICINQUE
Interna - 1914239 - MIRIAM PLAZA PINTO
Externo à Instituição - PAUL GERHARD KINAS - FURG