Field observations of simultaneous double mating in the wolf spider Rabidosa punctulata (Araneae: Lycosidae)
| Autor: | Matthew H. Persons |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
biology Ecology media_common.quotation_subject 05 social sciences Wolf spider Zoology Rabidosa punctulata biology.organism_classification 010603 evolutionary biology 01 natural sciences Polygynandry Courtship Mate choice Insect Science Sexual selection behavior and behavior mechanisms 0501 psychology and cognitive sciences 050102 behavioral science & comparative psychology Mating Sperm competition reproductive and urinary physiology media_common |
| Zdroj: | Journal of Arachnology. 45:231-234 |
| ISSN: | 1937-2396 0161-8202 |
| DOI: | 10.1636/joa-s-17-002.1 |
| Popis: | Males of many species of spider engage in alternative mating tactics that do not involve pre-mating courtship. Here I report field observations of a novel opportunistic mating tactic of the wolf spider Rabidosa punctulata (Hentz, 1844): simultaneous double mating, whereby males that encounter copulating pairs also mount and achieve inseminations concurrently with the first male. On three separate occasions, female R. punctulata were observed mating with two males simultaneously. Males that mate with already copulating females likely receive multiple fitness benefits. It may allow courtship parasitism of other males while also reducing male agonistic interactions, eliminate the need to court or subdue the female, and reduce pre-mating cannibalism risk. If such behavior is common, it may limit sexual selection acting on male courtship displays by reducing the effectiveness of pre-mating female choice while also increasing sperm competition. |
| Databáze: | OpenAIRE |
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