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| Cachera, Marie; Le Loc'H, Francois. |
| The relationships between diversity and ecosystem functioning have become a major focus of science. A crucial issue is to estimate functional diversity, as it is intended to impact ecosystem dynamics and stability. However, depending on the ecosystem, it may be challenging or even impossible to directly measure ecological functions and thus functional diversity. Phylogenetic diversity was recently under consideration as a proxy for functional diversity. Phylogenetic diversity is indeed supposed to match functional diversity if functions are conservative traits along evolution. However, in case of adaptive radiation and/or evolutive convergence, a mismatch may appear between species phylogenetic and functional singularities. Using highly threatened taxa,... |
| Tipo: Text |
Palavras-chave: Adaptive radiation; Conservation; Endangered clade; Evolutionary convergence; Niche conservatism; Phylogenetic signal. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00400/51113/69865.pdf |
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| Diniz Filho,José Alexandre Felizola; Villalobos,Fabricio; Bini,Luis Mauricio. |
| Eigenfunction analyses have been widely used to model patterns of autocorrelation in time, space and phylogeny. In a phylogenetic context, Diniz-Filho et al. (1998) proposed what they called Phylogenetic Eigenvector Regression (PVR), in which pairwise phylogenetic distances among species are submitted to a Principal Coordinate Analysis, and eigenvectors are then used as explanatory variables in regression, correlation or ANOVAs. More recently, a new approach called Phylogenetic Eigenvector Mapping (PEM) was proposed, with the main advantage of explicitly incorporating a model-based warping in phylogenetic distance in which an Ornstein-Uhlenbeck (O-U) process is fitted to data before eigenvector extraction. Here we compared PVR and PEM in respect to... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Evolutionary models; Phylogenetic comparative methods; Phylogenetic imputation; Phylogenetic signal. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000300396 |
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