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Journal of Ethology

, Volume 29, Issue 2, pp 263–273 | Cite as

Shelter use during exploratory and escape behaviour of the crab Chasmagnathus granulatus: a field study

  • María del Valle Fathala
  • Héctor Maldonado
Article

Abstract

The use of shelters has had a predominant adaptive value in many species throughout evolution. Shelters provide protection and reduce the risk of predation during the search for food and mates. However, they imply the additional danger of having the refuge appropriated by an intruder because of intraspecific competition, especially in densely populated communities. In this work we studied the burrow-centred strategies of exploration and the burrow-oriented escape responses of the crab Chasmagnathus granulatus during surface activity outside their burrows. Exploratory excursions were described through diverse characteristics that enabled their functional analysis and categorization. Results showed that surface exploration is mainly accomplished by slow and near-the-burrow excursions that could be composed of two or three stages. Exploratory behaviour is drastically replaced by a conspicuous burrow-oriented escape response when crabs are faced with an aerial stimulus or the approach of a conspecific neighbour. We describe and compare this escape run with regard to whether individual survival or burrow resource is at risk. This study provides evidence of the effect of the crabs’ shelter on surface activity and social interactions in the natural habitat of C. granulatus and supplies valuable tools for field and laboratory studies using this crab as an animal model.

Keywords

Shelter use Field study Neohelice granulata (=Chasmagnathus granulatusExploratory excursions Conspecific interactions Escape response 

Notes

Acknowledgments

We thank Iribarren L., Kunert M.C., Piriz G., Tedesco M. and Vidal A. for technical assistance in the field. This work was supported by FONCYT (Grant PICTR 00349, PICT-2006-02261), UBACYT (Grant X326) and CONICET (PIP 112-200801-02457 and PIP 2004-5466.

Supplementary material

10164_2010_253_MOESM1_ESM.doc (28 kb)
S1: Mean values of the characteristics of a resident crab’s exploratory excursion with spontaneous return to the burrow. N = 124 excursions (DOC 28 kb)
10164_2010_253_MOESM2_ESM.doc (36 kb)
S2: Mean values of the characteristics describing exploratory excursions composed of three segments (initial, exploration, and return segments) and two segments (initial and return segments). N = 124 excursions. Statistical comparisons between excursions are indicated with S (significant differences) or NS (non-significant differences). For between-segments comparisons, * indicates significant differences between the initial and the return segment, # indicates significant differences between the initial and the exploration segment and ✧ indicates significant differences between the exploration and the return segment. Detailed statistical results in text (DOC 36 kb)
10164_2010_253_MOESM3_ESM.eps (531 kb)
S3: Examples of focal’s and intruder’s instant velocity (upper panel) and distances (lower panel) relationships during the course of the conspecific interactions. Data were recorded at 0.5-s intervals and the escape point is indicated with an arrow. Distances measured were: focal-burrow distance (FB, solid line), intruder-burrow distance (IB, dotted line) and focal-intruder distance (FI, dashed line) (EPS 530 kb)

References

  1. Botto F, Iribarne O (2000) Contrasting effects of two burrowing crabs (Chasmagnathus granulata and Uca uruguayensis) on sediment composition and transport in estuarine environments. Estuar Coast Shelf Sci 51:141–151CrossRefGoogle Scholar
  2. Botto JL, Irigoyen HR (1979) Bioecologia de la comunidad del cangrejal I—Contribución al conocimiento biológico del cangrejo de estuario, Chasmagnathus granulata Dana (Crustacea, Decapoda, Grapsidae) en la desembocadura del Rio Salado, Provincia de Buenos Aires. Seminario de Biología Bentónica y Sedimentación de la Plataforma Continental del Atlántico Sur. UNESCO, Montevideo, pp 161–169Google Scholar
  3. Cannicci S, Barelli C, Vannini M (2000) Homing in the swimming crab Thalamita crenata: a mechanism based on underwater landmark memory. Anim Behav 60:203–210PubMedCrossRefGoogle Scholar
  4. D’Incao F, Ruffino ML, Silva KG, Braga AC (1990) Habito alimentar do caranguejo Chasmagnathus granulata Dana, 1851 na barra de Rio Grande, RS (Decapoda, Grapsidae), vol 1. Atlantica, Rio Grande, pp 85–93Google Scholar
  5. de la Iglesia HO, Rodriguez EM, Dezi RE (1994) Burrow plugging in the crab Uca uruguayensis and its synchronization with photoperiod and tides. Physiol Behav 55:913–919PubMedCrossRefGoogle Scholar
  6. Fathala MV, Iribarren L, Kunert MC, Maldonado H (2010a) A field model of learning: 1. Short-term memory in the crab Chasmagnathus granulatus. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 196:61–75CrossRefGoogle Scholar
  7. Fathala MV, Kunert MC, Maldonado H (2010b) A field model of learning: 2. Long-term memory in the crab Chasmagnathus granulatus. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 196:77–84CrossRefGoogle Scholar
  8. Finstad AG, Einum S, Ugedal O, Forseth T (2009) Spatial distribution of limited resources and local density regulation in juvenile Atlantic salmon. J Anim Ecol 78:226–235PubMedCrossRefGoogle Scholar
  9. Gutiérrez JL, Iribarne OO (2004) Conditional responses of organisms to habitat structure: an example from intertidal mudflats. Oecologia 139(4):572–582PubMedCrossRefGoogle Scholar
  10. Hemmi J (2005) Predator avoidance in fiddler crabs: 1. Escape decisions in relation to the risk of predation. Anim Behav 69:603–614CrossRefGoogle Scholar
  11. Hemmi JM, Zeil J (2003) Burrow surveillance in fiddler crabs. I. Description of behaviour. J Exp Biol 206:3935–3950PubMedCrossRefGoogle Scholar
  12. Iribarne O, Martinez M (1999) Predation on the southwestern Atlantic fiddler crab (Uca uruguayensis) by migratory shorebirds (Pluvialis dominica, P. squatarola, Arenaria interpres and Numenius phaeopus). Estuaries 22:47–54CrossRefGoogle Scholar
  13. Iribarne O, Bortolus A, Botto F (1997) Between-habitats differences in burrow characteristics and trophic modes in the southwestern Atlantic burrowing crab Chasmagnathus granulata. Mar Ecol Prog Ser 155:132–145CrossRefGoogle Scholar
  14. Jennions MD, Backwell PRY, Murai M, Christy JH (2003) Hiding behaviour in fiddler crabs: how long should prey hide in response to a potential predator? Anim Behav 66:251–257CrossRefGoogle Scholar
  15. Kumagai NH (2008) Role of food source and predator avoidance in habitat specialization by an octocoral-associated amphipod. Oecologia 155:739–749PubMedCrossRefGoogle Scholar
  16. Land M, Layne J (1995) The visual control of behaviour in fiddler crabs. II. Tracking control systems in courtship and defence. J Comp Physiol (A) 177:91–103CrossRefGoogle Scholar
  17. Layne JE, Barnes WJ, Duncan LM (2003a) Mechanisms of homing in the fiddler crab Uca rapax. 1. Spatial and temporal characteristics of a system of small-scale navigation. J Exp Biol 206:4413–4423PubMedCrossRefGoogle Scholar
  18. Layne JE, Barnes WJ, Duncan LM (2003b) Mechanisms of homing in the fiddler crab Uca rapax. 2. Information sources and frame of reference for a path integration system. J Exp Biol 206:4425–4442PubMedCrossRefGoogle Scholar
  19. Lecomte N, Gauthier G, Giroux JF (2009) A link between water availability and nesting success mediated by predator-prey interactions in the Arctic. Ecology 90:465–475PubMedCrossRefGoogle Scholar
  20. Maldonado H (2002) Crustacean as model to investigate memory illustrated by extensive behavioral and physiological studies in Chasmagnathus. In: Wiese K (ed) The crustacean nervous system. Springer, BerlinGoogle Scholar
  21. Menone ML, Miglioranza KS, Iribarne O, Aizpun de Moreno JE, Moreno VJ (2004) The role of burrowing beds and burrows of the SW Atlantic intertidal crab Chasmagnathus granulata in trapping organochlorine pesticides. Mar Pollut Bull 48:240–247PubMedCrossRefGoogle Scholar
  22. Pérez-Cuesta L, Maldonado H (2009) Memory reconsolidation and extinction in the crab: mutual exclusion or coexistence? Learn Mem 16:714–721PubMedCrossRefGoogle Scholar
  23. Rayadin Y, Saitoh T (2009) Individual variation in nest size and nest site features of the Bornean orangutans (Pongo pygmaeus). Am J Primatol 71:393–399PubMedCrossRefGoogle Scholar
  24. Ribeiro PD, Iribarne OO, Navarro D, Jaureguy L (2004) Environmental heterogeneity, spatial segregation of prey, and the utilization of southwest Atlantic mudflats by migratory shorebirds. Ibis 146:672–682CrossRefGoogle Scholar
  25. Romano A, Locatelli F, Freudenthal R, Merlo E, Feld M, Ariel P, Lemos D, Federman N, Fustinana MS (2006) Lessons from a crab: molecular mechanisms in different memory phases of Chasmagnathus. Biol Bull 210:280–288PubMedCrossRefGoogle Scholar
  26. Sakai K, Türkay M, Yang SL (2006) Revision of the Helice/Chasmagnathus complex (Crustacea: Decapoda: Brachyura). Abh Senckenberg Naturforsch Ges 565:1–76Google Scholar
  27. Spivak E (2010) The crab Neohelice (=Chasmagnathus) granulata: an emergent animal model from emergent countries. Helgol Mar Res 198. doi: 10.1007/s10152-010-0198-z
  28. Spivak E, Anger K, Luppi T, Bas C, Ismael D (1994) Distribution and habitat preferences in two grapsid crab species in Mar Chiquita Lagoon (Province of Buenos Aires, Argentina). Helgol Meeresunters 48:59–78CrossRefGoogle Scholar
  29. Sztarker J, Tomsic D (2008) Neuronal correlates of the visually elicited escape response of the crab Chasmagnathus upon seasonal variations, stimuli changes and perceptual alterations. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 194:587–596PubMedCrossRefGoogle Scholar
  30. Zar JH (1999) Biostatistical analysis. Prentice-Hall, Upper Saddle RiverGoogle Scholar
  31. Zeil J (1998) Homing in fiddler crabs (Uca lacteal annulipes and Uca vomeris: Ocypodidae). J Comp Physiol (A) 183:367–377CrossRefGoogle Scholar
  32. Zeil J, Hemmi JM (2006) The visual ecology of fiddler crabs. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 192:1–25PubMedCrossRefGoogle Scholar

Copyright information

© Japan Ethological Society and Springer 2010

Authors and Affiliations

  1. 1.Laboratorio de Neurobiología de la Memoria, Departamento de Fisiología y Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, IFIBYNE-CONICETUniversidad de Buenos AiresBuenos AiresArgentina

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