Receptivity of female Neohelice granulata (Brachyura, Varunidae): different strategies to maximize their reproductive success in contrasting habitats

Moyano, María Paz Sal; Luppi, Tomás Atilio; Gavio, María Andrea; Vallina, Micaela; McLay, Colin L.

doi:10.1007/s10152-012-0299-y

Cited by 18 publications

(48 citation statements)

References 68 publications

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“…, ; Sal Moyano et al . ,b). In the present study, the success of post‐copulatory guarding depended upon short female receptivity duration in both study areas although it also varied with the other factors studied.…”

Section: Discussionmentioning

confidence: 99%

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Variation in the post‐copulatory guarding behavior of Neohelice granulata (Brachyura, Grapsoidea, Varunidae) in two different habitats

et al. 2014

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Crab guarding behaviors are influenced by the biological and physical characteristics that each population experiences in a particular habitat. We studied post‐copulatory guarding behavior and the factors affecting it, such as the presence of burrows, female receptivity duration, operational sex ratio (OSR) and male size, in two different populations of Neohelice granulata: Mar Chiquita coastal lagoon (MCL) and San Antonio Oeste (SAO). Laboratory experiments showed that post‐copulatory guarding duration varied between the study areas. In MCL, it depended upon the presence of burrows and female receptivity duration, whereas it was independent of the OSR and male size. In SAO, it was dependent upon the OSR and female receptivity duration, whereas it was independent of the presence of burrows and male size. Thus, N. granulata males display different reproductive strategies related to their post‐copulatory guarding behavior pattern in different habitats. These strategies are related to the fact that this species constructs and defends a burrow that provides shelter and a place to mate, something that other varunids do not have.

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Section: Discussionmentioning

confidence: 99%

“…Based on the number of days that females had mobile opercula, they were characterized as having ‘short’ or ‘extended’ receptivity duration, following Sal Moyano et al . (). In all experiments a male and a RF were added.…”

Section: Methodsmentioning

confidence: 97%

Variation in the post‐copulatory guarding behavior of Neohelice granulata (Brachyura, Grapsoidea, Varunidae) in two different habitats

et al. 2014

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“…The velum has been suggested to selectively regulate sperm use during spawning by reducing the entry of older, stored sperm into the insemination chamber (Diesel 1989;Moyano et al 2010). However, more studies are needed to resolve the exact function of a velum or similar structures that are found in other crustaceans (e.g., Lee and Yamazaki 1990;Sainte-Marie and Sainte-Marie 1998;Sainte-Marie et al 2000;Lautenschlager et al 2010;Moyano et al 2012). Another example comes from the terrestrial isopod Armadillidium vulgare, in which sperm transport from the oviduct to the seminal receptacle has been proposed to be under female control (Ziegler and Suzuki 2011).…”

Section: Selective Sperm Passage ("Sperm Selection")mentioning

confidence: 97%

Cryptic Female Choice in Crustaceans

Dennenmoser

Thiel

2015

Cryptic Female Choice in Arthropods

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Cryptic female choice may be common among crustaceans , but few studies have thoroughly examined it in this diverse taxonomic group. Herein, we summarize current genetic evidence for multiple paternity and skewed offspring ratios in crustaceans, and document observations that could suggest cryptic female choice. Behaviors indicative of cryptic female choice have been reported from numerous crustacean taxa (e.g., crayfish , hermit crabs , isopods ), showcasing a diverse array of behavioral mechanisms such as failed copulations, spermatophore removal , selective sperm passage, chemical signaling , adjusting duration of receptivity, delayed copulation , or discriminative reproductive investment in favor of preferred males. We highlight a few case studies, in which a suite of different cryptic behaviors permits females to maintain control over fertilizations. The possibility of selective sperm–egg interactions is briefly discussed, and parallels to other aquatic invertebrates are drawn revealing similar cryptic choice mechanisms. The disparity of body forms and reproductive strategies found in crustaceans and the fact that they inhabit many different habitats with variable selective environments makes them an ideal model taxon for future studies on cryptic female choice

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“…Recently mated SM were obtained by randomly selecting a SM from the acclimation aquaria, placing it in an aquarium with a receptive female and observing successful copulation. Receptivity of females was recognized by the detection of mobile vulvae opercula which could be pushed inwards like a trapdoor when examined under a binocular microscope: the pleon was lifted and the two opercula were gently probed daily using fine forceps (see Sal Moyano et al 2012b). Copulation was considered to have occurred when both the male and female pleon were observed open and the male gonopods were inserted into the female vulvae.…”

Section: Collection Maintenance Of Crabs and Laboratory Experimentsmentioning

confidence: 99%

Male size-dependent dominance for burrow holding in the semiterrestrial crab Neohelice granulata: multiple tactics used by intermediate-sized males

Moyano

Lorusso

Núñez

et al. 2016

Behav Ecol Sociobiol

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Dominance and the establishment of social hierarchies are frequently related to size: the larger individuals gain greater reproductive success, while the smaller ones display alternative mating strategies. We studied the existence of dominance and the alternative mating strategies among Neohelice granulata small (SM) and large (LM) males competing for burrows. LM construct burrows with copulation chambers while SM do not. Field studies showed the existence of a SM's size-range of 30-32 mm carapace width when they change behavior and occupy burrows with copulation chambers (hereafter referred to as the Bswitch size-range^). We found a restricted size-range in mating pair formation. Laboratory experiments showed that LM dominate SM because SM did not construct burrows in the presence of LM, and LM displaced SM from their burrows. When given the chance, recently mated SM occupied burrows without copulation chambers while not recently mated SM occupied chambered burrows. This is evidence that these males may be displaying a cheating mating strategy to copulate with females looking for these burrows: they occupy but do not own these burrows. SM can also intercept and mate females on the surface. Given the size restriction in pair formation, intermediatesized males in the switch size-range (30-32 mm carapace width) may copulate with a broader female size-range, larger and smaller than themselves. In this way, SM in the switch size-range may be acquiring a higher reproductive success by adopting multiple tactics. Male dominance hierarchies have been well documented in crustaceans, except for crabs. Here, we demonstrate male dominance related to the construction and defense of burrows and male size in the crab N. granulata. We found that small males of a certain size range adopt an alternative Bcheating^mating strategy that can enhance fitness. Therefore, although they are not large and dominant, small males can nevertheless achieve high reproductive success as a result of this alternative reproductive tactic.

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Receptivity of female Neohelice granulata (Brachyura, Varunidae): different strategies to maximize their reproductive success in contrasting habitats

Cited by 18 publications

References 68 publications

Variation in the post‐copulatory guarding behavior of Neohelice granulata (Brachyura, Grapsoidea, Varunidae) in two different habitats

Variation in the post‐copulatory guarding behavior of Neohelice granulata (Brachyura, Grapsoidea, Varunidae) in two different habitats

Cryptic Female Choice in Crustaceans

Male size-dependent dominance for burrow holding in the semiterrestrial crab Neohelice granulata: multiple tactics used by intermediate-sized males

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