Latitude, elevation and body mass variation in Andean passerine birds

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Latitude, elevation and body mass variation in Andean passerine birds. / Blackburn, Timothy; Ruggiero, A.

In: Global Ecology and Biogeography, Vol. 10, No. 3, 01.05.2001, p. 245-259.

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@article{9b6501df82d348b0b65d75b41c9cc556,
title = "Latitude, elevation and body mass variation in Andean passerine birds",
abstract = "1 Relationships between body mass and latitude, and body mass and elevation are examined in the assemblage of Andean passerine birds. 2 Across species, body mass is positively correlated with the mid-point of the species elevational distribution, but there is no significant relationship between body mass and latitudinal range mid-point. 3 When the assemblage is separated into Andean endemic and non-endemic species, the former group shows a significant positive relationship between body mass and elevation, and the latter a significant positive relationship between body mass and latitude ('Bergmann's rule'). Andean endemic species exhibit Bergmann's rule once elevation is controlled for using multiple regression. 4 These relationships are not a consequence of the phylogenetic non-independence of species. All the effects shown are very weak, with latitude and elevation explaining only a few per cent of the variation in body mass. Relationships are strong est when phylogenetically controlled analyses are performed just within genera. 5 The implications of these results for the mechanistic understanding of Bergmann's rule are discussed.",
keywords = "elevation, Bergmann's rule, body size, latitude, ecogeographic rule, Andean birds",
author = "Timothy Blackburn and A Ruggiero",
year = "2001",
month = may,
day = "1",
doi = "10.1046/j.1466-822X.2001.00237.x",
language = "English",
volume = "10",
pages = "245--259",
journal = "Global Ecology and Biogeography",
issn = "1466-822X",
publisher = "Wiley",
number = "3",

}

RIS

TY - JOUR

T1 - Latitude, elevation and body mass variation in Andean passerine birds

AU - Blackburn, Timothy

AU - Ruggiero, A

PY - 2001/5/1

Y1 - 2001/5/1

N2 - 1 Relationships between body mass and latitude, and body mass and elevation are examined in the assemblage of Andean passerine birds. 2 Across species, body mass is positively correlated with the mid-point of the species elevational distribution, but there is no significant relationship between body mass and latitudinal range mid-point. 3 When the assemblage is separated into Andean endemic and non-endemic species, the former group shows a significant positive relationship between body mass and elevation, and the latter a significant positive relationship between body mass and latitude ('Bergmann's rule'). Andean endemic species exhibit Bergmann's rule once elevation is controlled for using multiple regression. 4 These relationships are not a consequence of the phylogenetic non-independence of species. All the effects shown are very weak, with latitude and elevation explaining only a few per cent of the variation in body mass. Relationships are strong est when phylogenetically controlled analyses are performed just within genera. 5 The implications of these results for the mechanistic understanding of Bergmann's rule are discussed.

AB - 1 Relationships between body mass and latitude, and body mass and elevation are examined in the assemblage of Andean passerine birds. 2 Across species, body mass is positively correlated with the mid-point of the species elevational distribution, but there is no significant relationship between body mass and latitudinal range mid-point. 3 When the assemblage is separated into Andean endemic and non-endemic species, the former group shows a significant positive relationship between body mass and elevation, and the latter a significant positive relationship between body mass and latitude ('Bergmann's rule'). Andean endemic species exhibit Bergmann's rule once elevation is controlled for using multiple regression. 4 These relationships are not a consequence of the phylogenetic non-independence of species. All the effects shown are very weak, with latitude and elevation explaining only a few per cent of the variation in body mass. Relationships are strong est when phylogenetically controlled analyses are performed just within genera. 5 The implications of these results for the mechanistic understanding of Bergmann's rule are discussed.

KW - elevation

KW - Bergmann's rule

KW - body size

KW - latitude

KW - ecogeographic rule

KW - Andean birds

UR - http://www.scopus.com/inward/record.url?scp=0034970032&partnerID=8YFLogxK

U2 - 10.1046/j.1466-822X.2001.00237.x

DO - 10.1046/j.1466-822X.2001.00237.x

M3 - Article

VL - 10

SP - 245

EP - 259

JO - Global Ecology and Biogeography

JF - Global Ecology and Biogeography

SN - 1466-822X

IS - 3

ER -