Freilandstudien zur sexual und Fortpflanzungs-biologie von Uca tangeri in Andalusien

Hagen, H.

doi:10.1007/bf00431425

Cited by 87 publications

(48 citation statements)

References 45 publications

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“…Uca tangeri is the only species of fiddler crab (genus Uca [Brachyura, Ocypodidae]) to be found in Europe, where it occurs on the southern coast of the Iberian peninsula (von Hagen 1962;Wolfrath 1993). Fiddler crabs are well known for their high degree of sexual dimorphism (Crane 1975).…”

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confidence: 99%

Functions of mudballing behaviour in the European fiddler crabUca tangeri

Oliveira¹,

McGregor

Burford

et al. 1998

Animal Behaviour

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Abstract. European fiddler crabs place mudballs around their burrow openings. Both males and females placed mudballs, but there were major differences between the sexes in mudballing behaviour, suggesting that the female's mudballs were a by-product of digging out the burrow whereas the male's may have additional functions. When the male's mudballs were removed experimentally, the number and intensity of male-male agonistic interactions increased significantly. Experimentally visually isolated males spent longer making mudballs and less time waving. In a binary choice test, females were more likely to approach dummy males with mudballs, spent longer near these males and were more likely to enter their burrows than dummy males without mudballs. The same pattern was apparent for males with 30 rather than 20 mudballs. These results are consistent with a dual function for mudballs in U. tangeri: to reduce the number and intensity of aggressive interactions between neighbouring males and to attract females.

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confidence: 99%

Functions of mudballing behaviour in the European fiddler crabUca tangeri

Oliveira¹,

McGregor

Burford

et al. 1998

Animal Behaviour

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“…Mass wandering of all these species was reported to occur on the water-logged place. It was also reported for wanderers that the males were dominant in U. vocans vocans (Nakasone, 1977) or about as many as the females in U. tangeri (v. Hagen, 1962), and that the ovigerous females occasionally formed the mass in U. vocator (v. Hagen, 1970). No observations are available that the mass of wanderers mainly consisted of non-ovigerous females or juveniles as in S. globosa reported in this paper.…”

Section: Discussionmentioning

confidence: 91%

“…On the other hand, it is also probable that wandering is associated with the reproductive activity as suggested on U. tangeri by v. Hagen (1962). It has been known that males pair with wandering females in llyoplax pusillus (Wada, 1981), Macrophthalmus Japonicus (Wada, 1978), and Uca species (Yamaguchi, 1971;Crane, 1975).…”

Section: Discussionmentioning

confidence: 93%

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Wandering in Scopimera Globosa (Crustacea : Ocypodidae)

Wãda¹

1981

Publ. SMBL

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“…There has been a sharp decrease in the U. tangeri population at Ria Formosa over the last two decades (Table 2). Although this type of fishing has been practised for a long time (von Hagen, 1962;local fishermen, pers. comm.…”

Section: Resultsmentioning

confidence: 99%