Global patterns of predator diversity in the open oceans


Worm, B., Sandow, M., Oschlies, A., Lotze, H.K. and Myers, R.A. (2005) Global patterns of predator diversity in the open oceans. Science, 309, (5739), 1365-1369. (doi:10.1126/science.1113399).

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Original Publication URL: http://dx.doi.org/10.1126/science.1113399

Description/Abstract

The open oceans comprise most of the biosphere, yet patterns and trends of species diversity there are enigmatic. Here, we derive worldwide patterns of tuna and billfish diversity over the past 50 years, revealing distinct subtropical ‘‘hotspots’’ that appeared to hold generally for other predators and zooplankton.
Diversity was positively correlated with thermal fronts and dissolved oxygen and a nonlinear function of temperature (È25-C optimum). Diversity declined between 10 and 50% in all oceans, a trend that coincided with increased fishing pressure, superimposed on strong El Nino–Southern Oscillation–driven variability across the Pacific. We conclude that predator diversity shows a predictable yet eroding pattern signaling ecosystem-wide changes linked to climate and fishing.

Item Type: Article
ISSNs: 0036-8075 (print)
Related URLs:
Subjects: Q Science > QH Natural history > QH301 Biology
G Geography. Anthropology. Recreation > GC Oceanography
Divisions: University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES)
ePrint ID: 24172
Date Deposited: 24 Mar 2006
Last Modified: 27 Mar 2014 18:13
URI: http://eprints.soton.ac.uk/id/eprint/24172

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