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Temperature-based summer habitat partitioning between white-beaked and common dolphins around the United Kingdom and Republic of Ireland

Published online by Cambridge University Press:  17 March 2008

Colin D. MacLeod ,
Caroline R. Weir ,
M. Begoña Santos  and
Timothy E. Dunn
Colin D. MacLeod*
Affiliation:
School of Biological Sciences (Zoology), University of Aberdeen, Tillydrone Avenue, Aberdeen, AB24 2TZ, UK
Caroline R. Weir
Affiliation:
School of Biological Sciences (Zoology), University of Aberdeen, Tillydrone Avenue, Aberdeen, AB24 2TZ, UK Ketos Ecology, 4 Compton Road, West Charleton, Kingsbridge, Devon, TQ7 2BP, UK
M. Begoña Santos
Affiliation:
School of Biological Sciences (Zoology), University of Aberdeen, Tillydrone Avenue, Aberdeen, AB24 2TZ, UK
Timothy E. Dunn
Affiliation:
Joint Nature Conservation Committee, Dunnet House, 7 Thistle Place, Aberdeen, AB10 1UZ, UK
*
Correspondence should be addressed to: Colin D. MacLeod, School of Biological Sciences (Zoology), University of Aberdeen, Tillydrone Avenue, Aberdeen, AB24 2TZ, UK Email: c.d.macleod@abdn.co.uk
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Abstract

The white-beaked dolphin (Lagenorhynchus albirostris) and short-beaked common dolphin (Delphinus delphis) are two of the most abundant delphinid species in shelf waters around the United Kingdom (UK) and Republic of Ireland (ROI) in the summer season (May–October). As these two species have similar habitat preferences and diets, it might be expected that they would partition their otherwise shared niche to reduce the potential for competition at this time of year. This study used 569 sightings of the two species, collected from shelf waters (<200 m water depth) in the summer season between 1983 and 1998, to investigate whether there is evidence of widespread niche partitioning based on water temperature in this area. Below 13°C, white-beaked dolphins were dominant with 96% of sightings comprising this species. In contrast, above 14°C, 86% of sightings comprised common dolphins. A classification tree analysis found that of the four eco-geographical variables analysed (water depth, seabed slope, seabed aspect and sea surface temperature), temperature was the most important variable for separating the occurrence of the two species. These results are consistent with widespread temperature-based niche partitioning between white-beaked and common dolphins in shelf waters around the UK and ROI. As temperature is important in determining the relative distribution of these species, the range of the white-beaked dolphin might be expected to contract in response to increasing sea temperature resulting from global climate change, while that of the common dolphin may expand.

Keywords

white-beaked dolphincommon dolphinwater temperaturehabit partitioning
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 88 , Special Issue 6: Marine Mammals , September 2008 , pp. 1193 - 1198
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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References

REFERENCES

Bearzi, M. (2005) Dolphin sympatric ecology. Marine Biology Research 1, 165–175.Google Scholar
Chase, J.M. and Leibold, M.A. (2003) Ecological niches: linking classical and contemporary approaches. Chicago, USA: University of Chicago Press.Google Scholar
Clark, R.A., Fox, C.J., Viner, D. and Livermore, M. (2003) North Sea cod and climate change—modelling the effects of temperature on population dynamics. Global Change Biology 9, 1669–1680.Google Scholar
Evans, W.E. (1994) Common dolphin, white-bellied porpoise Delphinus delphis Linnaeus, 1758. In Ridgway, S.H. and Harrison, R. (eds) Handbook of marine mammals, Volume 5: the first book of dolphins, San Diego: Academic Press pp. 191–224.Google Scholar
Fisheries Research Service (2003) Scottish ocean climate status report 2000–2001. Fisheries Research Service, Report 05/03.Google Scholar
Froese, R. and Pauly, D. (eds) (2007) FishBase. World Wide Web electronic publication. http://www.fishbase.org, August 2007 version).Google Scholar
Griffin, R.B. and Griffin, N.J. (2003) Distribution, habitat partitioning and abundance of Atlantic spotted dolphins, bottlenose dolphins, and logger-head sea turtles on the eastern Gulf of Mexico continental shelf. Gulf of Mexico Science 21, 23–34.Google Scholar
Hammond, P.S. et al. (1995) Distribution and abundance of the harbour porpoise and other small cetaceans in the North Sea and adjacent waters. Final Report Life 92-2/UK/027.Google Scholar
Hammond, P.S. et al. (2002) Abundance of harbour porpoise and other cetaceans in the North Sea and adjacent waters. Journal of Applied Ecology 39, 361–376.Google Scholar
Hersteinsson, P. and MacDonald, D.W. (1990) Interspecific competition and the geographical distribution of red and arctic foxes Vulpes vulpes and Alopex lagopus. Oikos 64, 505–515.Google Scholar
Lopez, A., Pierce, G.J., Santos, M.B., Gracia, J. and Guerra, A. (2003) Fishery by-catches of marine mammals in Galician waters: results from on-board observations and an interview survey of fishermen. Biological Conservation 111, 25–40.Google Scholar
MacLeod, C.D., Bannon, S.M., Pierce, G.J., Schweder, C., Learmonth, J.A., Reid, R.J. and Herman, J.S. (2005) Climate change and the cetacean community of north-west Scotland. Biological Conservation 124, 477–483.Google Scholar
MacLeod, C.D., Hauser, N. and Peckham, H. (2004) Diversity, abundance and structure of the cetacean community in summer months east of Great Abaco, the Bahamas. Journal of the Marine Biological Association of the United Kingdom 84, 469–474.Google Scholar
MacLeod, C.D., Weir, C.R., Pierpoint, C. and Harland, E. (2007) The habitat preferences of marine mammals west of Scotland (UK). Journal of the Marine Biological Association of the United Kingdom 87, 157–164.Google Scholar
Pollock, C.M., Mavor, R., Weir, C.R., Reid, A., White, R.W., Tasker, M.L., Webb, A. and Reid, J.B. (2000 The distribution of seabirds and marine mammals in the Atlantic Frontier, north and west of Scotland. Aberdeen, UK: Joint Nature Conservation Committee.Google Scholar
Reeves, R., Smeenk, C., Kinze, C.C., Brownell, R.L. Jr and Lien, J. (1999) White-beaked dolphin Lagenorhynchus albirostris, Gray 1846. In Ridgway, S.H. and Harrison, R. (eds) Handbook of marine mammals, Volume 5: the first book of dolphins, San Diego: Academic Press pp. 1–30.Google Scholar
Reid, J.B., Evans, P.G.H. and Northridge, S.P. (2003 Atlas of cetacean distribution in north-west European waters. Peterborough: Joint Nature Conservation Committee.Google Scholar
Reynolds, R.J. and Smith, T.M. (1994) Improved global sea surface temperature analysis using optimum interpolation. Journal of Climate 7, 929–948.Google Scholar
Selzer, L.A. and Payne, P.M. (1988) The distribution of white-sided (Lagenorhynchus acutus) and common dolphins (Delphinus delphis) vs environmental features of the continental shelf of the northeastern United States. Marine Mammal Science 4, 141–153.Google Scholar