The influence of male mating history on male–male competition and female choice in mating associations in the blue crab, Callinectes sapidus (Rathbun)

Kendall, Matthew S.; Wolcott, Thomas G.

doi:10.1016/s0022-0981(99)00022-2

Cited by 46 publications

(20 citation statements)

References 12 publications

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“…However, if the risk of sperm limitation is so high in this species, we would expect the females to evolve the ability to assess male sperm storage and to choose a male who is not sperm-depleted (Sato & Goshima, 2007). Such an ability was not found in our study possibly because, due to the minimal risk of sperm limitation in a habitat crowded with receptive males, there is no selective advantage for females to evolve specific mechanisms to avoid it (Kendall & Wolcott, 1999).…”

Section: Mate Choice By Femalesmentioning

confidence: 70%

Mutual mate choice in crayfish: large body size is selected by both sexes, virginity by males only

Aquiloni

Gherardi

2007

Journal of Zoology

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Mate choice is often assumed to be a prerogative of females because of their putatively larger reproductive investment than males. However, recent evidence suggests that spermatogenesis is far from being limitless and that males show a high selectivity towards their mates, thus maximizing their reproductive success. We investigated mutual mate choice in the crayfish Procambarus clarkii through two experiments. The first experiment explored the effects of body size, chelar size and chelar symmetry and social status of a potential partner. In the second experiment, we asked whether this species can discriminate between partners of the same body size but with different mating status. We used a binary choice test paradigm, in which two 'targets' with opposing characteristics were simultaneously presented to a test animal, the 'chooser'. The results showed that P. clarkii males are more selective than expected. Similar to the other sex, they were significantly attracted by targets with large body sizes, but not by individuals with larger and symmetric chelae or with a dominant status. An inter-sexual difference was found in the second experiment, in which only males seemed to select virgin potential mates. The several adaptive explanations for these preferences, still under debate, are finally discussed.

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Section: Mate Choice By Femalesmentioning

confidence: 70%

Mutual mate choice in crayfish: large body size is selected by both sexes, virginity by males only

Aquiloni

Gherardi

2007

Journal of Zoology

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“…SHPs took at least four times longer to reproduce as females than as males. The observation that SHPs required only 2 days to replenish their sperm reserves after a successful mating is surprising when this period is compared to that of other gonochoric crustaceans and simultaneous hermaphrodites (hermaphrodites: 8 days to replenish sperm reservoirs after a successful copulation in the land snail Arianta arbustorum, Locher and Baur 1999; 3 days in the marine worm Ophryotrocha diadema, Sella 1990; crustaceans: 9-15 days in the blue crab Callinectes sapidus, Jivoff 1997;Kendall and Wolcott 1999;9-12 days in Penaeus shrimps, Leung-Trujillo and Lawrence 1987). Most, if not all, of these simultaneous hermaphrodites and gonochoric crustaceans experience an elevated risk of sperm competition and thus require large amounts of sperm (and probably other expensive chemicals present in the ejaculate) to cope with postcopulation male-male competition (Charnov 1996;Parker 1998).…”

Section: Discussionmentioning

confidence: 99%

Testing Three Models on the Adaptive Significance of Protandric Simultaneous Hermaphroditism in a Marine Shrimp

Baeza¹

2006

Evolution

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Protandric simultaneous hermaphroditism, as reported for shrimps in the genus Lysmata, is a sexual system in which individuals invariably reproduce as males first and later in life as simultaneous hermaphrodites. I tested three models (i.e., sex-dependent energetic costs, sex-dependent mortality rates and sex-dependent time commitments) in an attempt to explain the adaptive value of protandric simultaneous hermaphroditism in the shrimp L. wurdemanni. Specific assumptions and predictions of each model were evaluated using manipulative experiments. In the laboratory, males grew faster than simultaneous hermaphrodites of the same size and age, an indication that the female function incurs higher energetic costs of reproduction than the male function. Also, large SHPs were more successful in monopolizing food than small males. The sex-dependent growth rate and size-dependent resource holding power agree with predictions of the sex-dependent energetic cost model. The time that simultaneous hermaphrodites required for replenishing their sperm reservoirs after mating as males was much shorter (2 days) than the time required to brood one clutch of embryos (11 days). Also, small simultaneous hermaphrodites experienced heavier mortality due to predatory fishes than large ones. The sex-dependent reproductive time commitment and size-dependent mortality agree with predictions of the sex-dependent time commitment model. Conversely, I found no evidence that the sex-dependent mortality model explains protandric simultaneous hermaphroditism in the studied species. In contrast to model predictions, mortality due to predatory fishes suffered by simultaneous hermaphrodites was not greater than that suffered by males of the same body size. In L. wurdemanni, the relationship between sex-specific investment and reproductive success seems to change during ontogeny in a way that is consistent with an adaptive adjustment of sex allocation to improve age-specific reproductive success.

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“…This, in part, can be explained as a conflict of interest between reproduction and growth. Kendall & Wolcott (1999) suggest that once males initiate their interest in mating, their physiological status might change causing a reduction of interest in molting to continue mating behavior. In P. middendorffii and P. nigrofascia, their mating seasons are limited to about one month and females produce only one clutch per year (Wada et al, 1995;Goshima et al, 1996), and almost all males immediately guard receptive females Suzuki et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Regeneration of major cheliped after the mating season in the hermit crab <i>Pagurus middendorffii</i>

Yasuda

Wada

2015

Crust Res

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Abstract. Males of the hermit crab Pagurus middendorffii use their major cheliped in male-male contests during the reproductive season. This study examined whether autotomized major chelipeds were regenerated before, during or after the mating season. We reared males that were experimentally induced to autotomize just before the mating season (October). During the mating season (November), few males molted even if they had autotomized their major cheliped. In contrast, males initiated a molt at the end of and after the mating season, and most of the autotomized males regenerated their major cheliped before the end of the rearing period (December). This suggests that regenerated major chelipeds in this study affect events other than mating, particularly perhaps future shell acquisition associated with general activities such as predator avoidance, physiological tolerance and growth.

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The influence of male mating history on male–male competition and female choice in mating associations in the blue crab, Callinectes sapidus (Rathbun)

Cited by 46 publications

References 12 publications

Mutual mate choice in crayfish: large body size is selected by both sexes, virginity by males only

Mutual mate choice in crayfish: large body size is selected by both sexes, virginity by males only

Testing Three Models on the Adaptive Significance of Protandric Simultaneous Hermaphroditism in a Marine Shrimp

Regeneration of major cheliped after the mating season in the hermit crab <i>Pagurus middendorffii</i>

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