Global biogeographic patterns of avian morphological diversity

被引：29

作者：

Hughes, Emma C. ^{[1
]}

Edwards, David P. ^{[1
]}

Bright, Jen A. ^{[2
]}

Capp, Elliot J. R. ^{[1
]}

Cooney, Christopher R. ^{[1
]}

Varley, Zoe K. ^{[3
]}

Thomas, Gavin H. ^{[1
,3
]}

机构：

[1] Univ Sheffield, Sch Biosci, Sheffield S10 2TN, S Yorkshire, England

[2] Univ Hull, Dept Biol & Marine Sci, Kingston Upon Hull, N Humberside, England

[3] Nat Hist Museum, Dept Life Sci, Bird Grp, Tring, England

来源：

ECOLOGY LETTERS | 2022年 / 25卷 / 03期

基金：

英国自然环境研究理事会; 欧洲研究理事会;

关键词：

avian biodiversity; community structure; morphological diversity; morphological traits; morphospace; niche expansion; niche packing; SPECIES RICHNESS; FUNCTIONAL DIVERSITY; HABITAT HETEROGENEITY; EVOLUTIONARY DYNAMICS; CONSERVATION; BIRDS; ENERGY; DIVERGENCE; RADIATION; TROPICS;

D O I：

10.1111/ele.13905

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Understanding the biogeographical patterns, and evolutionary and environmental drivers, underpinning morphological diversity are key for determining its origins and conservation. Using a comprehensive set of continuous morphological traits extracted from museum collections of 8353 bird species, including geometric morphometric beak shape data, we find that avian morphological diversity is unevenly distributed globally, even after controlling for species richness, with exceptionally dense packing of species in hyper-diverse tropical hotspots. At the regional level, these areas also have high morphological variance, with species exhibiting high phenotypic diversity. Evolutionary history likely plays a key role in shaping these patterns, with evolutionarily old species contributing to niche expansion, and young species contributing to niche packing. Taken together, these results imply that the tropics are both 'cradles' and 'museums' of phenotypic diversity.

引用

页码：598 / 610

页数：13

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