Non-native species disrupt the worldwide patterns of freshwater fish body size: implications for Bergmann's rule

被引：92

作者：

Blanchet, Simon ^{[1
,2
]}

Grenouillet, Gael ^{[2
]}

Beauchard, Olivier ^{[3
]}

Tedesco, Pablo A. ^{[4
]}

Leprieur, Fabien ^{[4
]}

Durr, Hans H. ^{[5
]}

Busson, Frederic ^{[4
]}

Oberdorff, Thierry ^{[4
]}

Brosse, Sebastien ^{[6
]}

机构：

[1] CNRS Moulis, Stn Ecol Expt, USR 2936, F-09200 Moulis, France

[2] Univ Toulouse 3, Lab Evolut & Divers Biol, UMR 5174, CNRS, F-31062 Toulouse 4, France

[3] Univ Antwerp, Dept Biol, Ecosyst Management Res Grp, Fac Sci, BE-2610 Antwerp, Belgium

[4] Museum Natl Hist Nat, UMR IRD BOREA 207, DMPA, F-75231 Paris, France

[5] Univ Utrecht, Dept Phys Geog, Fac Geosci, NL-3508 TC Utrecht, Netherlands

[6] Univ Toulouse 3, Lab Ecol Fonct, UMR 5545, CNRS, F-31062 Toulouse 4, France

来源：

ECOLOGY LETTERS | 2010年 / 13卷 / 04期

关键词：

Bergmann's rule; communities; ecosystem function; freshwater ecosystems; invasion; invasive species; latitudinal gradients; macroecology; null model; species extinction; BIOTIC HOMOGENIZATION; INVASION SUCCESS; NORTH-AMERICA; GLOBAL SYSTEM; RIVERINE FISH; RICHNESS; DIVERSITY; BIRDS; DETERMINANTS; BIODIVERSITY;

D O I：

10.1111/j.1461-0248.2009.01432.x

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

P>In this study, we test whether established non-native species induce functional changes in natural assemblages. We combined data on the body size of freshwater fish species and a worldwide data set of native and non-native fish species for 1058 river basins. We show that non-native fish species are significantly larger than their native counterparts and are a non-random subset of the worldwide set of fish species. We further show that the median body size of fish assemblages increases in the course of introductions. These changes are the opposite of those expected under several null models. Introductions shift body size patterns related to several abiotic factors (e.g. glacier coverage and temperature) in a way that modifies latitudinal patterns (i.e. Bergmann's rule), especially in the southern hemisphere. Together, these results show that over just the last two centuries human beings have induced changes in the global biogeography of freshwater fish body size, which could affect ecosystem properties.

引用

页码：421 / 431

页数：11

共 50 条

[21] The more you introduce the more you get: the role of colonization pressure and propagule pressure in invasion ecology [J].