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Mating behavior of female rock shrimp Rhynchocinetes typus (Decapoda: Caridea) - Indication for convenience polyandry and cryptic female choice
Citation
Thiel, M and Hinojosa Toledo, IA, Mating behavior of female rock shrimp Rhynchocinetes typus (Decapoda: Caridea) - Indication for convenience polyandry and cryptic female choice, Behavioral Ecology and Sociobiology, 55, (2) pp. 113-121. ISSN 0340-5443 (2003) [Refereed Article]
Copyright Statement
Copyright 2003 Springer
DOI: doi:10.1007/s00265-003-0677-1
Abstract
have demonstrated the importance of female behavior
during matings, in crustacean studies, a strong bias
towards male mating behavior prevails. Reproductively
mature rock shrimp (Rhynchocinetes typus) exist as
several ontogenetic stages that differ in their morphological
and physiological capacities. In natural populations,
the majority of males are in early ontogenetic stages
(termed typus), many are in intermediate stages (intermedius),
and few are in the terminal molt stage (robustus).
Dominant robustus males, which have already
demonstrated their biological fitness by surviving to this
stage, have previously been shown to have a higher
potential than subordinate typus males to defend receptive
females against other males, and fertilize the entire clutch
of a female. While females should thus show a preference
for robustus males, they nevertheless frequently receive
sperm from typus males. These observations suggested
that females might have mechanisms to discriminate
against sperm from subordinate males. In laboratory
experiments, we observed that females avoided being
seized by typus males for longer time periods in the
absence of robustus males than in their presence.
Following seizure, females that were initially held by
typus males, required more time to initiate spawning than
those held by robustus males. Many typus males transferred
spermatophores to females before these started to
spawn while robustus males waited until females began to
spawn before they transferred spermatophores. Females
manipulated spermatophores received from typus males
for long time periods (minutes), but not those they
received from robustus males. By accepting sperm from
subordinate typus males, females may avoid further
harassment (convenience polyandry), but they subsequently
may discriminate against these subordinate males
by delaying spawning and removing their sperm. These
observations suggest that female behavior influences the
outcome of matings, favoring fertilization of eggs by
sperm from dominant males. Convenience polyandry and
cryptic female choice may be common in other crustaceans
as well.
Item Details
Item Type: | Refereed Article |
---|---|
Keywords: | Shrimp · Multiple mating · Female choice ·Sperm removal · Male harassment |
Research Division: | Biological Sciences |
Research Group: | Ecology |
Research Field: | Behavioural ecology |
Objective Division: | Animal Production and Animal Primary Products |
Objective Group: | Fisheries - aquaculture |
Objective Field: | Aquaculture crustaceans (excl. rock lobster and prawns) |
UTAS Author: | Hinojosa Toledo, IA (Mr Ivan Hinojosa) |
ID Code: | 89259 |
Year Published: | 2003 |
Web of Science® Times Cited: | 44 |
Deposited By: | Sustainable Marine Research Collaboration |
Deposited On: | 2014-02-27 |
Last Modified: | 2014-06-06 |
Downloads: | 0 |
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