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THE MATING SYSTEM OF THE FIDDLER CRAB, UCA LACTEA (DECAPODA, BRACHYURA, OCYPODIDAE)

Authors: Takao Yamaguchi;

THE MATING SYSTEM OF THE FIDDLER CRAB, UCA LACTEA (DECAPODA, BRACHYURA, OCYPODIDAE)

Abstract

[No significant difference was observed in the size composition of the pairs of Uca lactea mating on the surface and those mating underground. Most crabs did not select their mates by size. The fact that the size of the tips of the male pleopods and that of the female gonopores does not increase after the crabs have reached a carapace width of 14 mm, makes it possible for crabs of different sizes to copulate. Wandering females that were enticed by waving males had a well-developed ovary. However, the ovary of females that mated on the surface could be in various stages of development. Aucune difference significative n'a ete observee dans la composition en taille des couples de Uca lactea s'accouplant a la surface et celles s'accouplant sous terre. La plupart des crabes n'ont pas choisi leurs partenaires en fonction de leur taille. Le fait que la taille des extremites des pleopodes mâles et celle des gonopores femelles n'augmentent pas apres que les crabes ont atteint une largeur de carapace de 14 mm, rend possible la copulation chez des crabes de differentes tailles. Les femelles errantes attires par les mâles faisant des signaux avaient invariablement un ovaire bien developpe. Cependant, l'ovaire des femelles s'etant accouplees en surface, pouvait etre a divers stades de developpement., No significant difference was observed in the size composition of the pairs of Uca lactea mating on the surface and those mating underground. Most crabs did not select their mates by size. The fact that the size of the tips of the male pleopods and that of the female gonopores does not increase after the crabs have reached a carapace width of 14 mm, makes it possible for crabs of different sizes to copulate. Wandering females that were enticed by waving males had a well-developed ovary. However, the ovary of females that mated on the surface could be in various stages of development. Aucune difference significative n'a ete observee dans la composition en taille des couples de Uca lactea s'accouplant a la surface et celles s'accouplant sous terre. La plupart des crabes n'ont pas choisi leurs partenaires en fonction de leur taille. Le fait que la taille des extremites des pleopodes mâles et celle des gonopores femelles n'augmentent pas apres que les crabes ont atteint une largeur de carapace de 14 mm, rend possible la copulation chez des crabes de differentes tailles. Les femelles errantes attires par les mâles faisant des signaux avaient invariablement un ovaire bien developpe. Cependant, l'ovaire des femelles s'etant accouplees en surface, pouvait etre a divers stades de developpement.]

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
26
Average
Top 10%
Average
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