Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Patterns of association among female Indo-Pacific bottlenose dolphins (Tursiops aduncus) in a population forming large groups

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Behaviour

Indo-Pacific bottlenose dolphins (Tursiops aduncus) around Amakusa-Shimoshima, Japan form large groups of >100 individuals, a remarkable feature of this population, which is much larger than previously studied bottlenose dolphins. Using photo-identification data collected on 33 days in 2012, associations among 70 females were investigated using two scales of association measure (photograph- and group-based association) to know whether they associate based on their reproductive status, as is typically observed in other populations with smaller group size. Significant differences in associations between females of the same reproductive status category and those in different categories were detected, and a female that lost her calf within a year decreased associations with females with calves of the same age. These suggests that even in a population with large group size, the reproductive status of females is one of the factors influencing their associations.

Affiliations: 1: aGraduate School of Fisheries and Environment Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan ; 2: bFaculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan

*Corresponding author’s e-mail address:

Full text loading...


Data & Media loading...

1. Aureli F., Schaffner C.M., Boesch C., Bearder S.K., Call J., Chapman C.A., Connor R., Fiore A.D., Dunbar R.I.M., Henzi S.P., Holekamp K., Korstjens A.H., Layton R., Lee P., Lehmann J., Manson J.H., Ramos Fernandez G., Strier K.B., van Schaik C.P. (2008). "Fission-fusion dynamics: new research frameworks". — Curr. Anthropol. Vol 49: 627-654.
2. Barros N., Wells R. (1998). "Prey and feeding patterns of resident bottlenose dolphins (Tursiops truncatus) in Sarasota bay, Florida". — J. Mammal. Vol 79: 1045-1059. [Crossref]
3. Barthelemy M., Barrat A., Pastor-Satorras R., Vespignani A. (2005). "Characterization and modeling of weighted networks". — Phys. A. Vol 346: 34-43. [Crossref]
4. Cairns S.J., Schwager S.J. (1987). "A comparison of association indices". — Anim. Behav. Vol 35: 1454-1469. [Crossref]
5. Connor R.C., Wells R., Mann J., Read A.J. (2000). "The bottlenose dolphin: social relationships in a fission-fusion society". — In: Cetacean societies: field studies of dolphins and whales ( Mann J., Connor R.C., Tyack P.L., Whitehead H., eds). The University of Chicago Press, Chicago, p.  91-126.
6. Duffield D., Wells R. (1991). "The combined application of chromosome, protein and molecular data for the investigation of social unit structure and dynamics in Tursiops truncatus". — Rep. Intl. Whal. Commiss. (special issue) Vol 13: 155-169.
7. Elliser C.R., Herzing D.L. (2012). "Community structure and cluster definition of Atlantic spotted dolphins, Stenella frontalis, in the Bahamas". — Mar. Mamm. Sci. Vol 28: 486-502. [Crossref]
8. Godde S., Humbert L., Côté S.D., Réale D., Whitehead H. (2013). "Correcting for the impact of gregariousness in social network analyses". — Anim. Behav. Vol 85: 553-558. [Crossref]
9. Gowans S., Würsig B., Karczmarski L. (2008). "The social structure and strategies of delphinids: predictions based on an ecological framework". — Adv. Mar. Biol. Vol 53: 195-294. [Crossref]
10. Herzing D.L., Brunnick B.J. (1997). "Coefficients of association of reproductively active female Atlantic spotted dolphins, Stenella frontalis". — Aquat. Mamm. Vol 23: 155162.
11. Holme P., Min Park S., Kim B.J., Edling C.R. (2007). "Korean university life in a network perspective: dynamics of a large affiliation network". — Phys. A. Vol 373: 821-830. [Crossref]
12. Inoue K., Terashima Y., Shirakihara M., Shirakihara K. (2017). "Habitat use by Indo-Pacific bottlenose dolphins (Tursiops aduncus) in Amakusa, Japan". — Aquat. Mamm. Vol 43: 127-138. [Crossref]
13. Kasuya T., Miyazaki N., Dawbin W.H. (1974). "Growth and reproduction of Stenella attenuata in the Pacific coast of Japan". — Sci. Rep. Whales. Res. Inst. Vol 26: 157-226.
14. Krause J., Ruxton G.D. (2002). Living in groups. — Oxford University Press, New York.
15. Louis M., Gally F., Barbraud C., Béesau J., Tixier P., Simon-Bouhet B., Rest K.L., Guinet C. (2015). "Social structure and abundance of coastal bottlenose dolphins, Tursiops truncatus, in the Normano-Breton gulf, English channel". — J. Mammal. Vol 96: 481-493. [Crossref]
16. Manly B.F.J. (2011). Heritage windows programs from the RT package. Available at (Accessed: 29 March 2017).
17. Miyazaki N., Nishiwaki M. (1978). "School structure of the striped dolphin off the Pacific coast of Japan". — Sci. Rep. Whales. Res. Inst. Vol 30: 65-115.
18. Möller L.M. (2012). "Sociogenetic structure, kin associations and bonding in delphinids". — Mol. Ecol. Vol 21: 745-764. [Crossref]
19. Möller L.M., Allen S.J., Harcourt R.G. (2002). "Group characteristics, site fidelity and abundance of bottlenose dolphins (Tursiops aduncus) in Jervis Bay and Port Stephens, southeastern Australia". — Aust. Mammal. Vol 24: 11-21. [Crossref]
20. Möller L.M., Beheregaray L.B., Allen S.J., Harcourt R.G. (2006). "Association patterns and kinship in female Indo-Pacific bottlenose dolphins (Tursiops aduncus) of southeastern Australia". — Behav. Ecol. Sociobiol. Vol 61: 109-117. [Crossref]
21. Möller L.M., Harcourt R.G. (2008). "Shared reproductive state enhances female associations in dolphins". — Res. Lett. Ecol. 498390.
22. Nishita M., Shirakihara M., Iwasa N., Amano M. (in press). Alliance formation of Indo-Pacific bottlenose dolphins (Tursiops aduncus) in Amakusa, western Kyushu, Japan. — Mamm. Study.
23. R Core Team (2016). R: a language and environment for statistical computing. — R Foundation for Statistical Computing, Vienna, Austria, available online at
24. Reisinger R.R., Karczmarski L. (2010). "Population size estimate of Indo-Pacific bottlenose dolphins in the Algoa Bay region, South Africa". — Mar. Mamm. Sci. Vol 26: 86-97. [Crossref]
25. Rogers C.A., Brunnick B.J., Herzing D.L., Baldwin J.D. (2004). "The social structure of bottlenose dolphins, Tursiops truncatus, in the Bahamas". — Mar. Mamm. Sci. Vol 20: 688-708. [Crossref]
26. Scott M.D., Irvine A.B., Wells R.S. (1990). "A long-term study of bottlenose dolphins on the west coast of Florida". — In: The bottlenose dolphin ( Leatherwood S., Reeves R., eds). Academic Press, San Diego, California, p.  235-244. [Crossref]
27. Shirakihara M., Shirakihara K., Tomonaga J., Takatsuki M. (2002). "A resident population of Indo-Pacific bottlenose dolphins (Tursiops aduncus) in Amakusa, western Kyushu, Japan". — Mar. Mamm. Sci. Vol 18: 30-41. [Crossref]
28. Smolker R.A., Richard A.F., Connor R.C., Pepper J.W. (1992). "Sex differences in patterns of association in Indo-Pacific bottlenose dolphins". — Behaviour. Vol 123: 38-69. [Crossref]
29. Tavares S.B., Samarra F.I.P., Miller P.J.O. (2016). "A multilevel society of herring-eating killer whales indicates adaptation to prey characteristics". — Behav. Ecol. Vol 28: 500-514.
30. Whitehead H. (2008). "Precision and power in the analysis of social structure using associations". — Anim. Behav. Vol 75: 1093-1099. [Crossref]
31. Whitehead H., Dufault S. (1999). "Techniques for analyzing vertebrate social structure using identified individuals: review and recommandations". — Adv. Stud. Behav. Vol 28: 33-74. [Crossref]

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Behaviour — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation