Banca de DEFESA: EMERSON CAMPOS BARBOSA JUNIOR

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : EMERSON CAMPOS BARBOSA JUNIOR
DATA : 27/01/2020
HORA: 08:00
LOCAL: Instituto de Biologia
TÍTULO:

Effect of behavioral plasticity on the resilience of anthropogenic disturbed environments

PALAVRAS-CHAVES:

Behavioral Ecology; Ethology; HIREC; Perturbation; Phenotypic Plasticity

PÁGINAS: 28
GRANDE ÁREA: Ciências Biológicas
ÁREA: Ecologia
SUBÁREA: Ecologia Teórica
RESUMO:

Environmental changes caused by humans have negatively affected biodiversity. Faced with these, being plastic can increase the average population fitness, giving more persistence to populations. Based on this, understanding how behavioral plasticity influences the resilience of environments is important for predictions and generalizations about disturbed landscapes. In this paper, we verify: (a) the effect of behavioral plasticity of individuals on community resilience in the context of disturbance (fragmentation through habit loss) caused by humans; and (b) the effect of behavioral plasticity of individuals on the number of ecological states following disturbances of different intensities. In addiction, we verify differences in resilience between: the cost of plasticity and the degree and fractality (small and large farms) of the disturbance. For this, we use of agents-based modeling (ABM) through NetLogo software. We elaborated a model with 10 species and 3 trophic levels. The animals had activational plasticity in dispersion (maximum size of the leap to escape) with an associated energy cost. We used multifactorial ANOVA to observe differences in resilience – which is represented by Shannon distance (pre-disturbance Shannon value decreased by post-disturbance value – values taken after stabilization). We find: (a) that having plasticity is better than not; (b) that in contexts of major disturbances increased behavioral plasticity increases system resilience; (c) state one pre-disturbance and one post; and (d) greater resilience in contexts of higher fractality and lower degree of disturbance (no difference in cost). In contexts of greater plasticity disturbed environments may have their tipping points altered.

MEMBROS DA BANCA:
Presidente - 1679716 - HILTON FERREIRA JAPYASSU
Interno - 3054284 - PAVEL DODONOV
Externo ao Programa - 1350143 - JOSE GARCIA VIVAS MIRANDA