Comparative reproductive biology of<i>Ariolimax californicus</i>and<i>A. dolichophallus</i>(Gastropoda; Stylommiatophora)

Leonard, Janet L.; Pearse, John S.; Harper, Alice Bryant

doi:10.1080/07924259.2002.9652738

Cited by 27 publications

(34 citation statements)

References 24 publications

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“…The penis is then eaten by the partner (Leonard, in Reise and Hutchinson, 2002;Leonard et al, 2002). Apophallated individuals cannot grow a new penis and cannot gain fitness through their male function anymore.…”

Section: Studies On Stylommatophoramentioning

confidence: 98%

“…The majority of pulmonates belong to the suborders Basommatophora (80 genera and 15 families) and Stylommatophora (1400 genera and 60 families). Pulmonates show diverse reproductive strategies, very complex mating behaviours and breeding systems (i.e., selffertilisation, cross-fertilisation or both) (Duncan, 1975;Tompa, 1984;Baur, 1998), and the variety of complex genitalia suggests that sexual selection is likely to be important in this group (Leonard et al, 2002). Pulmonates may maximise their reproductive success through a wide variety of different life history strategies.…”

Section: General Aspects Of Life History Variationmentioning

confidence: 99%

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Effects of mating, breeding system and parasites on reproduction in hermaphrodites: pulmonate gastropods (Mollusca)

2007

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There are approximately 20 000 pulmonate gastropod species that are all hermaphroditic and (with a few exceptions) can act in both (i.e., male and female) sexual roles. Life history traits such as growth (rate), age at first reproduction, fecundity, fertility, future survival and offspring survival are highly variable within pulmonate species, even among individuals of the same population. Here, we review some aspects of reproduction (availability of partners, size-dependent sex allocation, courtship, (multiple) mating, sperm longevity/viability, social facilitation), breeding system (selffertilisation, outcrossing or mixed) and parasitism that may influence an individual's reproductive success and therefore account for part of the intraspecific variation in life history traits. A literature study showed that fecundity, fertility and/or growth are significantly affected by: i) the mating group size through changes in interference competition (e.g., crowding), breeding system and sex allocation; ii) individual body size with larger individuals producing more eggs than smaller individuals; iii) mating whereby female fitness may be positively or negatively affected; iv) social facilitation whereby female fitness is positively affected by the presence of conspecifics; v) the breeding system including the phenomena of inbreeding and outbreeding depression; and vi) parasites that may suppress or stimulate reproduction, especially egg-laying, in parasitised individuals. Moreover, multiple mating and multiple paternity seem very common in pulmonates. Interestingly, several of the above-mentioned aspects seem to interact or even act synergetically. Although many aspects of life history variation in pulmonate gastropods are still poorly understood which makes it difficult to draw general conclusions, pulmonates offer ample opportunities to study the evolution of major topics in evolution and life history strategies. Indeed, there is a growing number of basommatophoran and stylommatophoran model species, experimental setups and molecular, histological and histochemical techniques that are used to test current hypothesis on sex allocation, sexual selection (sexual conflict, sperm competition or cryptic female choice), the evolution of breeding systems and host-parasite interactions which will yield much information for the study of life history strategies as well.

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Section: Studies On Stylommatophoramentioning

confidence: 98%

Section: General Aspects Of Life History Variationmentioning

confidence: 99%

Effects of mating, breeding system and parasites on reproduction in hermaphrodites: pulmonate gastropods (Mollusca)

2007

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“…Exceptional situations can emerge in hermaphrodites when an individual chews off the male intromittent organ of the mating partner after copulation (as in banana slugs: Leonard et al 2002). Although such behavior fulfills our definition of CW (Box 1), it does not target the organ that receives the sperm.…”

Section: Which Sex Causes Cw?mentioning

confidence: 99%

Copulatory Wounding and Traumatic Insemination

Reinhardt

Anthes

Lange

2015

Cold Spring Harb Perspect Biol

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Copulatory wounding (CW) is widespread in the animal kingdom, but likely underreported because of its cryptic nature. We use four case studies (Drosophila flies, Siphopteron slugs, Cimex bugs, and Callosobruchus beetles) to show that CW entails physiological and lifehistory costs, but can evolve into a routine mating strategy that, in some species, involves insemination through the wound. Although interspecific variation in CW is documented, few data exist on intraspecific and none on individual differences. Although defensive mechanisms evolve in the wound recipient, our review also indicates that mating costs in species with CW are slightly higher than in other species. Whether such costs are dose-or frequencydependent, and whether defense occurs as resistance or tolerance, decisively affects the evolutionary outcome. In addition to sexual conflict, CW may also become a model system for reproductive isolation. In this context, we put forward a number of predictions, including (1) occasional CW is more costly than routine CW, (2) CW is more costly in between-than within-population matings, and (3) in the presence of CW, selection may favor the transmission of sexually transmitted diseases if they induce resource allocation. Finally, we outline, and briefly discuss, several medical implications of CW in humans.

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“…The best researched (Leonard, Pearse, and Harper 2002;Gervais, Traveset, and Wilson 1998;Harper 1988) (Roth) are known from California (Roth and Sadeghian 2006). Anadenulus cockerelli (Hemphill) is the sole representative of the genus in California and has been collected in Kern, Los Angeles, Orange, and San Diego Counties (Roth and Sadeghian 2006).…”

Section: Native Speciesmentioning

confidence: 99%