Banca de QUALIFICAÇÃO: ANNE KARENINE BEZERRA DA PENHA DANTAS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : ANNE KARENINE BEZERRA DA PENHA DANTAS
DATA : 27/11/2016
HORA: 14:00
LOCAL: Laboratório Didático I, Departamento de Ecologia (DECOL)
TÍTULO:

Landscape characterization and  habitat fragmentation of Sapajus flavius and Alouatta belzebul in the northeastern Atlantic Forest


PALAVRAS-CHAVES:

Alouatta belzebul, Sapajus flavius, fragmentation, isolation, edge effect, shape and perimeter


PÁGINAS: 59
GRANDE ÁREA: Ciências Biológicas
ÁREA: Ecologia
RESUMO:

The effects of fragmentation process and habitat loss have generally resulted in the decrease of species richness, abundance of species and density of species as well as changes in population distribution, in addition to decreasing genetic diversity. Knowing that the arboreal primates are the most sensitive species to habitat fragmentation and are dependent on forests, these factors affect them directly with decreasing size of the fragments, increasing the insulation level and edge effect, facts that can cause change in affecting habitat quality and often setting the permanence of these species in forest remnants. In this study we first assess the structure of the landscape in the sites where the two species of endangered primates of the Atlantic Forest in north of Rio São Francisco: Alouatta belzebul and Sapajus flavius. And then we compare the fragments in which these species occur in fragments that they do not occur with respect to aspects of the landscape. In attempt to try to understand why there is absence of primates in fragments with area and socioeconomic characteristics similar to those that have occurred these primates. The CPB (Centro Nacional de Pesquisa e Conservação de Primatas Brasileiros - ICMBio) provided the occurrence data of primates and use indexing basis of specific articles and journals to compile all articles in which these species were studied in the field. We use the forest cover data from the world generated by Hansen et al. (2013), and calculated for each fragment area, perimeter, shape, proximity index and ratio of forest cover the landscape. The species S. flavius has a tendency to occur in different fragments compared with fragments only A. belzebul occurs and that both species occur mainly when compared with the proximity index (which measures the distance between the fragments). Showing that the species S. flavius tends to occur in more isolated locations. The shape, perimeter and distance of cities were the main characteristics that most explained the absence of primates in fragments without occurrence with socioeconomic data and similar area of the fragments occurring primate. This result indicates that possibly primates have preference for fragments with less edge effect and probably are suffering by human action. Conservation strategies must be proposed as resettlement connectivity as corridors and "stepping stones". And awareness work with the people surrounding the fragments is required to maintain these species threatened with extinction still alive in the Atlantic Northeast.


MEMBROS DA BANCA:
Externo à Instituição - MARCOS DE SOUZA FIALHO - ICMBIO
Externo ao Programa - 704.729.711-15 - MARÍLIA BRUZZI LION - UFRN
Presidente - 1914239 - MIRIAM PLAZA PINTO
Notícia cadastrada em: 19/10/2016 14:09
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