Como o comportamento animal pode influenciar a distribuição das espécies

• Ano de defesa: 2018
• Autor(a) principal: Lima, Herlander Correia de
• Orientador(a): Rangel, Thiago Fernando Lopes Valle de Britto
• Banca de defesa: Rangel, Thiago Fernando Lopes Valle de Britto, Nomura, Fausto, Ortega, Jean Carlos Gonçalves, Samia, Diogo Soares Menezes
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Goiás
• Programa de Pós-Graduação: Programa de Pós-graduação em Ecologia e Evolução (ICB)
• Departamento: Instituto de Ciências Biológicas - ICB (RG)
• País: Brasil
• Palavras-chave em Português: Traços comportamentais; Distribuição de espécies; Expansão de território
• Palavras-chave em Inglês: Behavioral traits; Species distributions; Range expansion
• Área do conhecimento CNPq: CIENCIAS BIOLOGICAS::ECOLOGIA
• Link de acesso: http://repositorio.bc.ufg.br/tede/handle/tede/8254

Research in animal personality is increasing our understanding of what prevents a species from colonizing new areas, which is one of the outstanding questions in biogeography. Some behavioral types can perform better than others in specific stages involved in range expansion. For example, a high exploratory behavior increases the chances of finding new resources in novel environments. However, inconsistent results in the literature hindered a definite recognition of the role of animal personalities on species distributions. I collected data available in the literature and performed a bayesian meta-analysis to assess which behavioral types are driving range expansion in the following biogeographical processes: dispersal, migration and invasion. I used several moderators to try to discern context-dependencies in effect sizes. A hierarchical model, with effect sizes nested within studies, revealed that more exploratory and bolder behaviors facilitate range expansion. Also, I found that invasive individuals are more likely to be more exploratory and more active than natives, while dispersers are generally bolder and more exploratory than non-dispersers. Yet, the low study sample size obtained for analysis stresses the need to conduct more primary studies. Results highlight the role of behavioral traits in species distributions and increase our knowledge about which ecological characteristics might prepare species to endure the current global environmental challenges.