Amazonian ecology: Tributaries enhance the diversity of electric fishes

被引：147

作者：

Fernandes, CC ^{[1
]}

Podos, J

Lundberg, JG

机构：

[1] Univ Massachusetts, Dept Biol, Amherst, MA 01003 USA

[2] Univ Massachusetts, Grad Program Organism & Evolutionary Biol, Amherst, MA 01003 USA

[3] Inst Nacl de Pesquisas da Amazonia, BR-69083 Manaus, Amazonas, Brazil

[4] Acad Nat Sci Philadelphia, Dept Ichthyol, Philadelphia, PA 19103 USA

来源：

SCIENCE | 2004年 / 305卷 / 5692期

关键词：

D O I：

10.1126/science.1101240

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：

Neotropical rivers support a diverse array of endemic taxa, including electric fishes of the order Gymnotiformes. A comprehensive survey of the main channels of the Amazon River and its major tributaries (>2000-kilometer transect) yielded 43 electric fish species. Biogeographical analyses suggest that local mainstem electric fish diversity is enhanced by tributaries. Mainstem species richness tends to increase downstream of tributary confluences, and species composition is most similar between tributaries and adjacent downstream mainstem locations. These findings support a "nodal" or heterogeneous model of riverine community organization across a particularly extensive and diverse geographical region.

引用

页码：1960 / 1962

页数：3

共 31 条

[11] NEUROETHOLOGY OF ELECTRIC COMMUNICATION [J].

HOPKINS, CD .

ANNUAL REVIEW OF NEUROSCIENCE, 1988, 11 :497-535

[12]

IBARRA M, 1989, COPEIA, P364

[13]

KULLANDER S, 2003, CHECK LIST FRESH WAT

[14]

Lowe-McConnell R.H., 1987, ECOLOGICAL STUDIES T

[15] A MAJOR FOOD WEB COMPONENT IN THE ORINOCO RIVER CHANNEL - EVIDENCE FROM PLANKTIVOROUS ELECTRIC FISHES [J].

LUNDBERG, JG ;

LEWIS, WM ;

SAUNDERS, JF ;

MAGOLECCIA, F .

SCIENCE, 1987, 237 (4810) :81-83

[16]

Lundberg JG, 1996, COPEIA, P657

[17] So many fishes, so little time: An overview of recent ichthyological discovery in continental waters [J].

Lundberg, JG ;

Kottelat, M ;

Smith, GR ;

Stiassny, MLJ ;

Gill, AC .

ANNALS OF THE MISSOURI BOTANICAL GARDEN, 2000, 87 (01) :26-62

[18]

Lundberg John G., 1998, P13

[19]

Mago-Leccia F, 1994, ELECT FISHES CONTINE

[20]

Matthews W.J., 1998, PATTERNS FRESHWATER

← 1 2 3 4 →