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- Title
Foraging, oviposition sites and notes on the natural history of the harvestman Heteromitobates discolor (Opiliones, Gonyleptidae).
- Authors
dos Santos Silva, Norton Felipe; Willemart, Rodrigo Hirata
- Abstract
The lack of data on the natural history often hampers phylogenetic studies on the evolution of behavior. Herein we provide quantitative field data on foraging and oviposition sites of a Neotropical harvestman belonging to a subfamily with a published phylogeny, Goniosomatinae. Heteromitobates discolorrests during the day on granitic boulders on rivers, laying eggs in sheltered and darker areas. The female guard the eggs and aggressively respond to approaching conspecific females. In the absence of the female, ants, conspecifics and reduviids may predate the eggs. Egg-guarding females are known not to leave the clutch, but males and non-guarding females may leave the granitic boulders and forage on the vegetation at night, close to the river margins and with no difference in the sites explored between males and females. The general features described in H. discolor are similar to what has been reported for other species in this subfamily, suggesting an evolutionary conservatism within the group.
- Subjects
OPILIONES; OVIPARITY; FORAGING behavior
- Publication
Biota Neotropica (Edicao em Iingles), 2015, p1
- ISSN
1806-129X
- Publication type
Article
- DOI
10.1590/1676-06032015018614