Banca de QUALIFICAÇÃO: MARCOS ROBERTO MONTEIRO DE BRITO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : MARCOS ROBERTO MONTEIRO DE BRITO
DATA : 01/11/2016
HORA: 14:00
LOCAL: Laboratório Didático I - Departamento de Ecologia
TÍTULO:

Effects of habitat fragmentation on fruit-feeding butterflies (Lepidoptera: Nymphalidae) in Atlantic Forest remnants in Rio Grande do Norte

PALAVRAS-CHAVES:

Fragmentation, habitat loss, fruit-feeding butterflies, Nymphalidae, Atlantic Forest

PÁGINAS: 50
GRANDE ÁREA: Ciências Biológicas
ÁREA: Ecologia
RESUMO:

Habitat loss and fragmentation lie among the biggest threats to biodiversity, capable of contributing to declines in biological communities. The response to these disturbances depend on landscape metrics and also metrics intrinsic to the fragments, and can also vary among different species. Our study test how fragment area, isolation, shape, matrix quality and distance to the nearest permanent course of water (river or pond) affect fruit-feeding butterflies richness and abundance in the northeastern portion of Atlantic Forest. We used 15 fragments, surrounded by a heterogeneous matrix, consisting predominantly of sugarcane crop fields, ranging from 1,7 to 27,4 hectares, spread in distance classes to a permanent course of water ranging from zero and 2000 meters. Species richness and abundance decreased with increased distance to water. Model selection suggested distance to the water as the main factor affecting species richness and abundance, but matrix quality is also an important predictor for species richness, while fragment shape is important for abundance. Our results highlight the conservation value of small fragments, and sheds light to a new relevant factor in distance to a permanent course of water as a key factor for fruit-feeding butterflies communities in the Atlantic Forest.

MEMBROS DA BANCA:
Interno - 1715227 - GABRIEL CORREA COSTA
Presidente - 1451741 - MARCIO ZIKAN CARDOSO
Interno - 1914239 - MIRIAM PLAZA PINTO