Banca de QUALIFICAÇÃO: PAULO HENRIQUE DANTAS MARINHO

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : PAULO HENRIQUE DANTAS MARINHO
DATA : 26/02/2019
HORA: 09:00
LOCAL: sala de reunião do Decol
TÍTULO:

DIVERSITY, DISTRIBUTION AND COEXISTENCE OF TERRESTRIAL VERTEBRATES IN PRIORITY AREAS FOR THE  CAATINGA CONSERVATION


PALAVRAS-CHAVES:

Activity patterns; Birds; Dry Tropical Forest; Endangered species; Mammals; Occupancy


PÁGINAS: 83
GRANDE ÁREA: Ciências Biológicas
ÁREA: Ecologia
RESUMO:

Medium and large (> 1 kg) terrestrial vertebrates play important ecological roles while being especially vulnerable to threats such as hunting and habitat loss  and degradation. The biodiversity of dry tropical forests such as the Brazilian Caatinga is among the most threatened and least known and protected on the planet. We understand little, for example, about which species persist and how they are distributed and coexist in this scenario of high degradation and scarcity of resources. In this context, we aim to: 1) characterize the richness and composition of the mammal community of 10 priority conservation areas of the Caatinga of a sub-sampled state, Rio Grande do Norte; 2) to analyze the relative importance of predictors of anthropogenic disturbance (distance of roads and houses and abundance of livestock) and environmental factors (forest cover, ground roughness and distance of temporary rivers and streams) in the occupancy of terrestrial vertebrates in a disturbed landscape of the Bahia Caatinga, besides characterizing the activity of the species and evaluating their temporal overlap with anthropogenic disturbances; and 3) investigate the spatio-temporal patterns of coexistence of mesocarnivores in a community released from top predators in the Brazilian semiarid. For this purpose, we used data obtained through camera trapping in different priority areas for conservation, associating them with hierarchical models of occupancy and co-occurrence with imperfect detection and analysis of activity overlap. As final or partial results (for each specific objective) we have: 1) the 14 species (six orders and 10 families) of mammals found in the Caatinga potiguar, including three endangered species, represent up to 50% of those expected for the biome; 2) the occupancy modeling of six among the 14 species of terrestrial vertebrates recorded (11 mammals and three birds) revealed that the distribution of some species does not respond to the characteristics of the landscape, possibly because of their higher resistance, while others presented species responses related to forest cover; the greater proportion of nocturnal species in the region should be a response, among other factors, to the intense anthropogenic disturbance; 3) according to preliminary analyzes in the rainy season, the six most recorded mesocarnivores are mainly nocturnal, and although they overlap much of their activity, smaller species avoid the peaks of activity of the dominant species (Leopardus pardalis), which also seems to affect the detection of its congener (L. tigrinus).


MEMBROS DA BANCA:
Interno - 3060333 - ANDROS TAROUCO GIANUCA
Presidente - 1718346 - EDUARDO MARTINS VENTICINQUE
Externo ao Programa - 3060010 - GUILHERME SANTOS TOLEDO DE LIMA
Notícia cadastrada em: 22/02/2019 11:25
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