Global patterns of predator diversity in the open oceans

被引：244

作者：

Worm, B ^{[1
]}

Sandow, M

Oschlies, A

Lotze, HK

Myers, RA

机构：

[1] Dalhousie Univ, Dept Biol, Halifax, NS B3H 4J1, Canada

[2] Leibniz Inst Marine Sci, D-24105 Kiel, Germany

[3] Natl Oceanog Ctr, Southampton SO14 3ZH, Hants, England

来源：

SCIENCE | 2005年 / 309卷 / 5739期

关键词：

D O I：

10.1126/science.1113399

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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 (similar to 25 degrees 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.

引用

页码：1365 / 1369

页数：5

共 32 条

[1] Collapse and conservation of shark populations in the Northwest Atlantic [J].