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Feeding habits of non-ocypodid crabs from two mangrove forests of Kenya
Dahdouh-Guebas, F.; Giuggioli, M.; Oluoch, A.; Vannini, M.; Cannicci, S. (1999). Feeding habits of non-ocypodid crabs from two mangrove forests of Kenya. Bull. Mar. Sci. 64(2): 291-297
In: Bulletin of Marine Science. University of Miami Press: Coral Gables. ISSN 0007-4977; e-ISSN 1553-6955, meer
Peer reviewed article  
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Trefwoorden
    Ecology
    Food
    ISW, Kenya, Gazi Bay
    ISW, Kenya, Mida Creek
    Crustacea [WoRMS]; Grapsidae MacLeay, 1838 [WoRMS]; Portunidae Rafinesque, 1815 [WoRMS]; Sesarma leptosoma Hilgendorf, 1869 [WoRMS]
    Gazi Bay [Marine Regions]; Mida creek [Marine Regions]
    Marien/Kust
Auteurs  Top 
  • Dahdouh-Guebas, F., meer
  • Giuggioli, M.
  • Oluoch, A.
  • Vannini, M., meer
  • Cannicci, S.
Abstract
    The stomachs of 194 crabs belonging to 11 species, commonly inhabiting mangrove areas, were collected in two Kenyan mangrove forests, in Gazi Bay and Mida Creek, and their contents were analyzed. Both the stomach fullness (a subjective estimation) and the composition (the plant:animal matter ratio) of the food ingested were recorded. Results show that few species are either strictly herbivorous (Sesarma ortmanni and Selatium elongatum) or strictly carnivorous (Eurycarcinus natalensis), while most of the species are non-specialized and normally eat a wide range of plant items, mangrove leaf litter and algae, and animal prey, mostly bivalves, gastropods, anomurans and other brachyurans. Crab stomachs with a higher percentage of mangrove leaf litter and algae were significantly fuller than those with animal items. Most of the crabs display an omnivore feeding habit and feed on a wide range of items. Among the Sesarminae, the most herbivorous group, the only species showing a significant degree of specialization is Sesarma leptosoma, which is able to reach the mangrove canopy to feed on fresh leaves.
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