Untangling the influence of ecological and evolutionary factors on trait variation across hummingbird assemblages

被引:83
|
作者
Graham, Catherine H. [1 ]
Parra, Juan L. [1 ,2 ]
Tinoco, Boris A. [1 ]
Gary Stiles, F. [3 ]
McGuire, Jim A. [4 ]
机构
[1] SUNY Stony Brook, Dept Ecol & Evolut, Stony Brook, NY 11784 USA
[2] Univ Antioquia, Inst Biol, Fac Ciencias Exactas & Nat, Medellin, Colombia
[3] Univ Nacl Colombia, Inst Ciencias Nat, Bogota, Colombia
[4] Univ Calif Berkeley, Museum Vertebrate Zool, Berkeley, CA 94720 USA
基金
美国国家科学基金会;
关键词
Andes; competition; environmental filtering; functional trait; gradient; phylogenetic structure; South America; PHYLOGENETIC COMMUNITY STRUCTURE; TROPICAL HUMMINGBIRD; BETA DIVERSITY; NECTARIVOROUS BIRDS; FOREST IMPLICATIONS; NECTAR EXTRACTION; AMAZONIAN FOREST; SPATIAL SCALE; HIGH-ALTITUDE; FLIGHT;
D O I
10.1890/11-0493.1
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Phylogenetic community ecology combines phylogenetic hypotheses with local species composition and functional-trait information to evaluate historical and contemporary mechanisms influencing local assemblage structure. Most studies assume that, if functional traits are conserved, then patterns of trait variation should match patterns of phylogenetic structure within local assemblages. Here we evaluated if we could predict trait structure by assuming that environmental filtering or biotic interactions work primarily on phylogenetically conserved functional traits. We investigated patterns of phylogenetic assemblage structure and functional-trait variation in bill length, wing length, and body mass in 236 hummingbird assemblages (126 species) across two major gradients in northern South America: elevation and precipitation. While mean trait values for assemblages vary predictably based on empirical knowledge of hummingbird biology, the distribution of trait values within assemblages do not correspond to those predicted based on phylogenetic signal and phylogenetic structure. Instead, we were able to identify instances where assemblages have high levels of morphological variation despite their close evolutionary relatedness and vice versa. Our results provide support for both filtering and biotic interactions across gradients, as has been documented in other studies.
引用
收藏
页码:S99 / S111
页数:13
相关论文
共 31 条
  • [31] Morphotype Classification Criteria and Influence of Sociocultural Factors on Perceived Shea Tree (Vitellaria paradoxa C.F. Gaertn) Natural Variation across Parklands in Benin
    Merinosy, Michee Fustelle F.
    Achigan-Dako, Enoch G.
    Gnangle, Paul Cesaire
    Kassa, Eugene
    Boffa, Jean-Marc
    PLANTS-BASEL, 2022, 11 (03):