Mound building in Ilyoplax pingi (Crustacea: Brachyura: Ocypodidae)

Wãda, Keiji; Yum, Seungshic; Park, J. K.

doi:10.1007/bf00349474

Cited by 12 publications

(5 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The social function of structures made of mud or sand excavated from the burrow by some ocypodids has been suggested, e.g. sand piles in several species of Ocypode (Vannini, 1980) the value of which in courtship and territorial defence has been demonstrated in O. saratan (Linsenmair, 1967), and mounds in Ilyoplax pingi (Wada et al, 1994) and I. pusilla (Kitaura & Wada, 1996) deterring the approach of neighbours. Indeed, several large D. fenestrata have been seen displaying over their domes.…”

Section: Discussionmentioning

confidence: 99%

Burrowing activity in the sand‐bubbler crab, Dotilla fenestrata (Crustacea, Ocypodidae), inhabiting a mangrove swamp in Kenya

Gherardi

Russo

2001

Journal of Zoology

View full text Add to dashboard Cite

Several species of crabs belonging to the family Ocypodidae are burrowers; they inhabit tropical sandy and muddy shores, including mangrove swamps, exposed to extreme conditions of intertidal areas. Dotilla fenestrata, the only East African representative of the subfamily Scopimerinae, exhibits high¯exibility in its burrowing activity. Only part of the population has an exclusively burrow-orientated activity, whereas most individuals form dense aggregations or droves, that during the phase of diurnal low water move away from the normal distribution zone. Burrows are built according to two different architectural designs, the feeding-trench burrow and the igloo, which then constitute their territory. A resident will lose a contest for the burrow when the attacker is larger. When the ground is uncovered at low tide, emergence can be delayed or even fail to occur, and some crabs remain buried during the entire low water period. Only 50% of crabs remain faithful to the original burrow, while the others either leave it to occupy an empty one or dig a new burrow, or join the wandering drove. The spatial distribution of burrows from the high water neap level (our reference point) to the sea, differs during both spring and neap tides, and both diurnal and nocturnal tides. The differences may be due partly to the change of physical conditions, such as drainage and substrate grade (although within a mangrove swamp these do not follow a consistent gradient), but mostly may be related to the trade-off between the bene®ts and costs of living at different intertidal levels. With its burrowing and feeding activity leading to the re-deposition of excavated and pseudofaecal pellets, Dotilla plays a role as a sediment mover in this very specialized habitat. The results obtained from this study are compared with those reported in other ocypodids.

show abstract

Section: Discussionmentioning

confidence: 99%

Burrowing activity in the sand‐bubbler crab, Dotilla fenestrata (Crustacea, Ocypodidae), inhabiting a mangrove swamp in Kenya

Gherardi

Russo

2001

Journal of Zoology

View full text Add to dashboard Cite

show abstract

“…Some other species from the same family build structures from excavated sand. Male ghost crabs, Ocypode saratan, place sand pyramids near the burrow and these structures apparently function in male spacing and female attraction (Linsenmair 1967) and Ilyoplax crabs produce various structures from mud excavated from their burrows (Wada 1984(Wada , 1994Takayama & Wada 1992;Wada et al 1994).…”

mentioning

confidence: 99%

Functions of mudballing behaviour in the European fiddler crabUca tangeri

Oliveira¹,

McGregor

Burford

et al. 1998

Animal Behaviour

View full text Add to dashboard Cite

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.

show abstract

“…However, sexual size dimorphism remains undescribed. In addition, there have been few reports of aggressive behaviors in other congeneric species (Wada & Wang, 1998), though mud-using anti-neighbor behaviors have been described in detail for some species (Wada, 1984(Wada, , 1987(Wada, , 1994Takayama & Wada, 1992;Wada et al, 1994Wada & Park, 1995). This paper describes sexual dimorphism in the carapace and chela sizes of I. pusilla (De Haan, 1835).…”

Section: Introductionmentioning

confidence: 92%

Characteristics of aggressive behaviors of five species of the genus <i>Ilyoplax</i> (Brachyura, Dotillidae) in East Asia

Wãda

Ida

2017

Crust Res

View full text Add to dashboard Cite

Abstract. Aggressive behaviors are described for five species of the genus Ilyoplax (Dotillidae), I. pusilla (De Haan, 1835), I. formosensis (Rathbun, 1921), I. ningpoensis Shen, 1940, I. deschampsi (Rathbun, 1913, and I. tansuiensis Sakai, 1939, and the male/female ratios are compared relative to the sex ratio of the population. Aggressive behaviors were similar in all species. The main types of aggressive behaviors, including aggressive dash, aggressive wave, and wrestling, were common to the five species. The mutual aggression of wrestling was confined to male crabs in all five species. The frequencies of aggressive behaviors were higher in male crabs than in female crabs, suggesting male-biased aggressiveness. This may be reflected in the male-biased carapace and chela size dimorphisms observed in I. pusilla.

show abstract

Mound building in Ilyoplax pingi (Crustacea: Brachyura: Ocypodidae)

Cited by 12 publications

References 15 publications

Burrowing activity in the sand‐bubbler crab, Dotilla fenestrata (Crustacea, Ocypodidae), inhabiting a mangrove swamp in Kenya

Burrowing activity in the sand‐bubbler crab, Dotilla fenestrata (Crustacea, Ocypodidae), inhabiting a mangrove swamp in Kenya

Functions of mudballing behaviour in the European fiddler crabUca tangeri

Characteristics of aggressive behaviors of five species of the genus <i>Ilyoplax</i> (Brachyura, Dotillidae) in East Asia

Contact Info

Product

Resources

About