Banca de DEFESA: AMANDA TOLEDO PEREIRA DE CARVALHO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : AMANDA TOLEDO PEREIRA DE CARVALHO
DATA : 30/04/2018
HORA: 13:30
LOCAL: Sala de Aula do PPg em Psicobiologia
TÍTULO:

The influence of environmental cues in life history strategies

PALAVRAS-CHAVES:

Life History Theory; Life history strategies; Mortality; Unpredictability; Reproductive behavior

PÁGINAS: 78
GRANDE ÁREA: Ciências Humanas
ÁREA: Psicologia
RESUMO:

One of the most fund––amental principles of Life History Theory is that natural selection has shaped life forms to harvest energy from the environment and convert it into replicates of themselves. However, fitness maximization does not always imply producing large amounts of offspring: considering environmental factors such as mortality and unpredictability is crucial to understand trade-offs performed by organisms along their lifespan, therefore, their life history strategies, which are organized around a fast-slow dimension. Fast strategies are characterized for greater energetic allocation in tasks and traits related to current reproduction, while slow strategies are future-oriented, allocating energy towards somatic effort. Human beings lie on the slow end of the continuum, but still exhibit intraspecies and populational variation. In the past decades, the global phenomenon of fertility decline in spite of the current affluence of resources have been challenging tenets of human reproductive behavior. In this context, in our empiric study we sought to understand how factors such as mortality, unpredictability, socioeconomic context and populational density might explain variation in reproductive strategies in a Brazilian sample. We found evidences that mortality, childhood unpredictability and socioeconomic context predict some life history behavioral markers such as reproductive effort, idealized offspring quantity, idealized age of first reproduction and length of commited relationship. Our results partially corroborate current literature about the interaction between environment and life history strategies development. On the other hand, we found unusual results regarding the relation between childhood context and life history strategies, which demonstrate that more investigation on this subject is required, especially in countries out of North American and European contexts, such as Brazil.

MEMBROS DA BANCA:
Presidente - 1350337 - FIVIA DE ARAUJO LOPES
Interno - 990.796.828-53 - MARIA EMILIA YAMAMOTO - UFRN
Externo à Instituição - ROSANA SUEMI TOKUMARU - UFES