Time allocations for different activities in the fiddler crab Tubuca rosea (Tweedie, 1937) (Brachyura, Ocypodidae)
Investigating the time activity budgets of fiddler crabs is very important to determine the effects of sex and body size on allocating time for different activities. Few previous studies investigated the effects of sex and body size on time allocations in underground mating species. This study determines the effects of sex, size and their interaction on time allocations in a surface mating species (Tubuca rosea (Tweedie, 1937)). The surface activities of large and small, male and female crabs were video recorded. Afterwards time allocations for various activities (e.g., feeding, standing (vigilance), walking, inside burrows, grooming, burrowing, mating, and for males only, fighting and claw-waving) were calculated. All crabs spent most of their time on feeding than on other activities. Smaller crabs spent more time being vigilant, whereas larger crabs spent more time on courtship displays (grooming, and waving), and fighting. Between sexes, females spent more time standing, but less time on walking and grooming than males. Predation risk, reproductive maturation, breeding/non-breeding season, and energy conservation could be important factors for shaping time allocations in T. rosea.
Altmann J (1974) Observational study of behavior: sampling methods. Behaviour 49: 227-267.
Backwell PRY, Passmore NI (1996) Time constraints and multiple choice criteria in the sampling behaviour and mate choice of the fiddler crab, Uca annulipes. Behavioral Ecology and Sociobiology 38:407-416.
Balmford A, Rosser AM, Albon SD (1992) Correlates of female choice in resource-defending antelope. Behavioral Ecology and Sociobiology 31:107-114.
Bergey LL (2007) Behavioral ecology and population biology in populations of fiddler crabs, Uca pugnax (Smith), on the New Jersey coast. Rutgers University, New Jersey-Newark.
Brown L (1981) Patterns of female choice in mottled sculpins (Cottidae, Teleostei). Animal Behaviour 29:373-382.
Brunton DH (1988) Sexual differences in reproductive effort: time-activity budgets of monogamous killdeer, Charadrius vociferous. Animal Behaviour 36:705-711.
Callander S, Jennions MD, Backwell PRY (2012) The effect of claw size and wave rate on female choice in a fiddler crab. J Ethol 30:151-155.
Caravello HE, Cameron GN (1987) Foraging time allocation in relation to sex by the Gulf coast fiddler crab (Uca panacea). Oecologia 72:123-126.
Caravello HE, Cameron GN (1991) Time activity budgets of the Gulf coast fiddler crab (Uca panacea). American Midland Maturalist 126:403-407.
Christy JH, Salmon M (1984) Ecology and evolution of mating systems of fiddler crabs (genus Uca). Biological Reviews 59:483-509.
Côte IM, Hunte W (1989) Male and female mate choice in the redlip blenny: why bigger is better. Animal Behaviour 38:78-88.
Cowlishaw G (1998). The role of vigilance in the survival and reproductive strategies of desert baboons. Behaviour 135:431-452.
Crane J (1975) Fiddler crabs of the world. Ocypodidae: genus Uca. Princeton University Press, Princeton, NJ.
Dasilva GL (1992) The western black-and-white colobus as a low-energy strategist: activity budgets, energy expenditure and energy intake. Journal of Animal Ecology 61:79-91.
deRivera CE, Vehrencamp SL (2001) Male versus female mate searching in ﬁddler crabs: a comparative analysis. Behavioral Ecology 12:182-191.
Hyatt GW, Salmon M (1978) Combat in the fiddler crabs Uca pugilator and U. pugnax: a quantitative analysis. Behaviour 65:182-211.
Jaroensutasinee M, Jaroensutasinee K (2003) Male body size influences female choice and male-male competition in the fiddler crab, Uca paradussumieri Bott, 1973 (Decapoda, Brachyura, Ocypodidae). Crustaceana 76:177-186.
Jaroensutasinee M, Tantichodok P (2002) Effects of size and residency on fighting outcomes in the fiddler crab, Uca vocans hesperiae (Decapoda, Brachyura, Ocypodidae). Crustaceana 75:1107-1117.
Kim TW, Kim KW, Srygley RB, Choe JC (2004) Semilunar courtship rhythm of the fiddler crab Uca lactea in a habitat with great tidal variation. Journal of Ethology 1:63-68.
Lima SL, Dill LM (1990) Behavioral decisions under the risk of predation: a review and prospectus. Canadian Journal of Zoology 68:619–640.
MacIntosh DJ (1979) Predation of fiddler crabs (Uca spp.) in estuarine mangroves. In: Srivastaba PBL (ed) Proceeding symposium on mangrove and estuarine vegetation in southeast Asia, 25th-28th April, 1978. Serdang, Selangor, Malaysia. Biotrop. Spec. Publ. Series, pp 101-110.
Milner RNC, Jennions MD, Backwell PRY (2012) Keeping up appearances: male fiddler crabs wave faster in a crowd. Biology Letters 8:176-178.
Mokhlesi A, Kamrani E, Backwell P, Sajjadi M (2011) Study on the behaviour of two fiddler crabs, Uca sindensis and Uca annulipes (Decapoda: Ocypodidae), in Bandar Abbas, Iran. Journal of the Marine Biological Association of the United Kingdom 91:245-249.
Murai M, Goshima S, Kawai K, Yong HS (1996) Pair formation in the burrows of the fiddler crab Uca rosea (Decapoda: Ocypodidae). Journal of Crustacean Biology 16:522-528.
Salmon M, Hyatt GW (1983) Spatial and temporal aspects of reproduction in North Carolina fiddler crabs (Uca pugilator Bosc). Journal of Experimental Marine Biology and Ecology 70:21-43.
Schoener TW (1971) Theory of feeding strategies. Annual Review of Ecology and Systematics 2: 369-404.
Sen S, Homechaudhuri S (2015) Spatial distribution and population structure of fiddler crabs in an Indian Sundarban mangrove. Scientia Marina 79:79-88.
Sokal RR, Rohlf FJ (1981) Biometry: the principles and practice of statistics in biological research. W. H. Freeman, San Francisco.
Thompson S (1986) Male spawning success and female mate choice in the mottled triplefin, Forsterygion varium (Pisces: Tripterygiidae). Animal Behaviour 34:580-589
Tina FW, Jaroensutasinee M, Jaroensutasinee K (2015) Effects of body size, resident status and handedness on fighting behaviour of the fiddler crab, Uca bengali Crane, 1975. Crustaceana 88:775-789.
Tina FW, Jaroensutasinee M, Jaroensutasinee K (2016) Sex and size affecting time allocations for activities in Uca annulipes (H. Milne Edwards, 1837). Crustaceana 89:759-773.
Tina FW, Jaroensutasinee M, Keeratipattarakarn K, Jaroensutasinee K (2018) Surface mating influences chimney/burrow characteristics of Uca rosea (Tweedie, 1937) (Brachyura, Ocypodidae) in southern Thailand. Crustaceana 91:311-320.
Trivers R (1972) Parental investment and sexual selection. In: Campbell B (ed) Sexual selection and the descent of man. Aldine Press, Chicago, pp 1871-1971.
Weis JS, Weis P (2004) Behavior of four species of fiddler crabs, genus Uca, in southeast Sulawesi, Indonesia. Hydrobiologia 523:47-58.