Predation on a Freshwater Crab, Dilocarcinus dentatus (Tricodactylidae), by Several Tropical Wolf Spiders, Ancylometes bogotensis (Ctenidae), in Trinidad, W.I.

Rakesh Bhukal, Mike G. Rutherford, Ryan S. Mohammed

Abstract


On 4 September, 2014, during a nocturnal field trip to the Aripo Savannas, Trinidad, (WGS 84 UTM 0697545 1176021), an unusual observation was made. Three adult spiders, Dilocarcinus dentatus, were observed feeding on an adult freshwater crab, Ancylometes bogotensis. The spiders were on vegetation above a flooded trail and there were many crabs in the water below. The crab was initially held by a female spider; two males were then seen to approach and also feed on the crab


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References


Alexander, R.D. 1974. The evolution of social behaviour. Annual Review of Ecology and Systematics, 5: 325-383.

Avilés, L. 1997. Causes and consequences of cooperation and permanent sociality in spiders. p. 476-498. In B. Crespi and J. Choe, eds. The Evolution of Social Behavior in Insects and Arachnids. Cambridge University Press, Cambridge, Massachusetts.

Deacon, A.E., Farrell, A.D. and Fraser, D.F. 2015. Observation of a Semi-Aquatic Spider Attack: An Overlooked Fish Predator in a Well-Studied Ecosystem? Living World, Journal of The Trinidad and Tobago Field Naturalists’ Club, 2015:57-59.

Höfer, H. and Brescovit, A.D. 2000. A revision of the Neotropical spider genus Ancylometes Bertkau (Araneae: Pisauridae). Insect Systematics & Evolution, 31: 323-360.

Lubin, Y. 2010. Social evolution in spiders. p. 329-334. In M.D. Breed and J. Moore, eds. Encyclopedia of Animal Behavior, Vol. 2. Academic Press, Oxford, England.

Menin, M., Rodrigues, D.J. and Azevedo, C.S. 2005. Predation on amphibians by spiders (Arachnida: Araneae) in the Neotropical region. Phyllomedusa 4: 39-47.

Nyffeler, M. and Pusey, B.J. 2014. Fish predation by semi-aquatic spiders: A global pattern. Plos One 9, e99459.

Platnick, N.I. 2013. The world spider catalog. Version 14.0. American Museum of Natural History. [Online] Available: http://research.amnh.org/iz/spiders/catalog/ (Accessed 14 March, 2015).

White, G. 2015. Observation of a spider, Ancylometes bogotensis (Ctenidae), preying on the frog Rhinella beebei (Bufonidae) in Trinidad. Living World, Journal of The Trinidad and Tobago Field Naturalists’ Club, 2015:61-62.


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