Trait evolution in adaptive radiations: modelling and measuring interspecific competition on phylogenies
Trait evolution in adaptive radiations: modelling and measuring interspecific competition on phylogenies
复制标题
适应性辐射中的性状进化:建模和测量系统发育的种间竞争
DOI:
10.1101/033647
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Clarke M
中科院分区:
文献类型:
--
作者:
Clarke M
The incorporation of ecological processes into models of trait evolution is important for understanding past drivers of evolutionary change. Species interactions have long been thought to be key drivers of trait evolution. However, models for comparative data that account for interactions between species are lacking. One of the challenges is that such models are intractable and difficult to express analytically. Here we present phylogenetic models of trait evolution that include interspecific competition among chosen species. Competition is modeled as a tendency of sympatric species to evolve toward difference from one another, producing trait overdispersion and high phylogenetic signal. The model predicts elevated trait variance across species and a slowdown in evolutionary rate both across the clade and within each branch. The model also predicts a reduction in correlation between otherwise correlated traits. We use an approximate Bayesian computation approach to estimate model parameters. We find reasonable power to detect competition in sufficiently large (20+ species) trees compared with Brownian trait evolution and with Ornstein-Uhlenbeck and early burst models. We apply the model to examine the evolution of bill morphology of Darwin’s finches and find evidence that competition affects the evolution of bill length.
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影响因子:
3.3
作者:
Eastman, Jonathan M.;Alfaro, Michael E.;Harmon, Luke J.
通讯作者:
Harmon, Luke J.
影响因子:
8.8
作者:
de Mazancourt, C.;Johnson, E.;Barraclough, T. G.
通讯作者:
Barraclough, T. G.
影响因子:
2.9
作者:
Hadfield, Jarrod D.;Krasnov, Boris R.;Nakagawa, Shinichi
通讯作者:
Nakagawa, Shinichi
DOI:
10.1086/592628
发表时间:
2008
期刊:
The Quarterly Review of Biology
影响因子:
--
作者:
A. Peterson
通讯作者:
A. Peterson
影响因子:
3.3
作者:
L. Revell;D. Mahler;P. Peres‐Neto;B. Redelings
通讯作者:
B. Redelings