Mating behavior of a Neotropical arachnid with exclusive paternal care

Autor(es)

Requena, Gustavo S. ^[1] ; Machado, Glauco ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Programa Posgrad Ecol, Inst Biociencias, BR-05508900 Sao Paulo - Brazil

^[2] Univ Sao Paulo, Dept Ecol, Inst Biociencias, BR-05508900 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ACTA ETHOLOGICA; v. 17, n. 1, p. 23-30, MAR 2014.
• Citações Web of Science: 6

Resumo

Paternal care has independently evolved in several arthropod lineages, but mating interactions have been described in detail for only a few species. Here, we describe the mating behavior of Iporangaia pustulosa, a Neotropical harvestman with exclusive paternal care. We obtained the data under natural conditions, and the results are based on 51 mating interactions. Females performed mate searching exclusively, locating and approaching stationary caring males on the vegetation. Upon arrival, nearly 33 % of the visiting females were promptly attacked and repelled by the males without copulating. We did not observe pre-copulatory courtship, and males, exclusively, performed copulatory courtship. Nearly 30 % of the females that copulated with caring males left the clutches without laying any egg. Finally, several behavioral actions reported here are remarkably similar to those observed in the sex-role-reversed harvestman Zygopachylus albomarginis, for which there is strong evidence of both male and female mate choice. In conclusion, our results provide evidence of male aggressive rejection of mates and female abandonment of clutches without ovipositing, suggesting that individuals of both sexes may evaluate and select mating partners. (AU)

• Processo FAPESP: 08/06604-7 - Filogenia dos opiliões da família Gonyleptidae (Arachnida: Opiliones) baseada em caracteres morfológicos, moleculares e comportamentais
• Beneficiário: Ricardo Pinto da Rocha
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 08/54833-5 - Fatores que influenciam o sucesso reprodutivo dos machos em opilioes (arachnida) com cuidado paternal
• Beneficiário: Glauco Machado
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 02/00381-0 - Investimento parental e evolução do comportamento sub-social em opiliões da família Gonyleptidae (Arachnida: Opiliones)
• Beneficiário: Glauco Machado
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 08/50466-8 - Fatores que influenciam o sucesso reprodutivo dos machos em artrópodes com cuidado paternal
• Beneficiário: Gustavo Requena Santos
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 03/05418-1 - Cuidado paternal no opilião Iporangaia pustulosa (Opiliones: Gonyleptidae)
• Beneficiário: Gustavo Requena Santos
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica