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Predatory activity and spatial strategies of Epixanthus dentatus (Decapoda: Oziidae), an ambush predator among the mangroves
Cannicci, S.; Ruwa, R. K.; Giuggioli, M.; Vannini, M. (1998). Predatory activity and spatial strategies of Epixanthus dentatus (Decapoda: Oziidae), an ambush predator among the mangroves. J. Crust. Biol. 18(1): 57-63. dx.doi.org/10.2307/1549520
In: Journal of Crustacean Biology. Crustacean Society: Washington. ISSN 0278-0372; e-ISSN 1937-240X
Peer reviewed article  
Available in  Authors 
Keywords
    Behaviour
    Mangroves
    Epixanthus dentatus (White, 1848) [WoRMS]
    ISW, Kenyan Coast [Marine Regions]
    Marine/Coastal
Authors  Top 
  • Cannicci, S., more
  • Ruwa, R. K.
  • Giuggioli, M.
  • Vannini, M.
Abstract
    The predatory patterns and spatial strategies of Epixanthus dentatus were studied in a mangrove creek on the Kenyan coast, together with laboratory analysis aimed at assessing the natural diet. This xanthoid fed on almost all the slowly moving invertebrates common in the forest and actively preyed at night, using an ambush technique. Epixanthus dentatus is faithful to individual dens among the roots and to well-defined feeding areas within a 3-m radius, which they shared with an average of 2 other individuals. The high density of E. dentatus seemed to affect the behavior of major prey species; various grapsid crab species reduced their climbing activity during the peak activity periods of E. dentatus. The density of E. dentatus among the mangrove roots was determined both by the number of suitable dens, and, more directly, by the density of prey species.
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