Sperm allocation in the simultaneously hermaphroditic land snail Arianta arbustorum

Article Abstract:

Research was conducted to examine the hypothesis that the hermaphroditic land snail, Arianta arbustorum, has the ability to expend sperm differentially to their partners. Sperm count ranged from 802,620 to 3,968,800 which indicated that sperm release was not related to the duration of copulation or the mating history of the partner. Results suggest that there was no correlation between the size of the recipient and the size of the donor in sperm release among hermaphroditic land snails.

Sexual behavior in animals, Animal sexual behavior, Spermatozoa, Sperm

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Sex role alternation in the simultaneously hermaphroditic pond snail Lymnaea stagnalis is determined by the availability of seminal fluid

Article Abstract:

The pond snail Lymnaea stagnalis in which sexual isolation increases male sexual drive is studied. Results indicate that sex role alternation occurred only in pairs where both animals are isolated and may be conditional.

Netherlands, Physiological aspects, Courtship of animals, Mating behavior, Hermaphroditism, Mating behaviour

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Cue association and antipredator behavior in a pulmonate snail, Lymnaea stagnalis

Article Abstract:

Experiments conducted on Lymnaea stagnalis, a pulmonate snail, to study the cue association and its behavior when faced with a predator, are discussed.

United Kingdom, Australia, Behavior, Animal attacks, Escape behavior, Escape behaviour

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