Starvation decreases behavioral consistency in a Neotropical harvestman

Autor(es)

Segovia, Julio M. G. ^{[1, 2]} ; Moura, Rafael Rios ^[3] ; Willemart, Rodrigo H. ^{[1, 2, 4]}

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Biociencias, Programa Posgrad Zool, Sao Paulo - Brazil

^[2] Univ Sao Paulo, Escola Artes Ciencias & Humanidades, Lab Ecol Sensorial & Comportamento Artropodes, Sao Paulo - Brazil

^[3] Univ Estadual Campinas, Dept Biol Anim, Campinas, SP - Brazil

^[4] Univ Fed Sao Paulo, Programa Posgrad Ecol & Evolucao, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ACTA ETHOLOGICA; v. 22, n. 3, p. 203-208, OCT 2019.
• Citações Web of Science: 0

Resumo

Consistent inter-individual differences in behavior have been shown in several animal groups, ranging from vertebrates to invertebrates. One of the most studied personality traits in animals is boldness, which is the tendency to expose to risky situations. Theory proposes that individuals' state (e.g., body energy) would influence the expression of personality traits. In this study, we tested if boldness levels of the harvestman Mischonyx cuspidatus (measured as duration of death feigning/freezing after simulated predator attack) differ between two different states, namely sated and food deprived. We also tested if the degree of repeatability in boldness is affected by the individual state. We found no differences in the levels of boldness expressed by M. cuspidatus when comparing between different conditions (sated and food deprived) at a population level. However, we found that individuals showed more consistency in boldness when sated relative to a food-deprived condition. Finally, we suggest new avenues for future studies addressing personality in harvestmen. (AU)

• Processo FAPESP: 17/14196-5 - Variações interpopulacionais no sistema de acasalamento e sucesso reprodutivo de Manogea porracea (Araneae, Araneidae), uma aranha com cuidado anfisexual
• Beneficiário: Rafael Rios Moura
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 14/19191-3 - História natural, síndromes comportamentais e aprendizado em Charinus asturius (Arachnida: Amblypygi: Charinidae)
• Beneficiário: Júlio do Monte Gonzalez de Segovia
• Modalidade de apoio: Bolsas no Brasil - Doutorado