@article{fdi:010082176,
  title = {{I}mprints of past habitat area reduction on extant taxonomic, functional, and phylogenetic composition},
  author = {{B}arthelemy, {E}. and {F}ortunel, {C}laire and {J}aunatre, {M}. and {M}unoz, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}ast environmental changes have shaped the evolutionary and ecological diversity of extant organisms. {S}pecifically, climatic fluctuations have made environmental conditions alternatively common or rare over time. {A}ccordingly, most taxa have undergone restriction of their distribution to local refugia during habitat contraction, from which they could expand when suitable habitat became more common. {A}ssessing how past restrictions in refugia have shaped species distributions and genetic diversity has motivated much research in evolutionary biology and biogeography. {B}ut there is still lack of clear synthesis on whether and how the taxonomic, functional and phylogenetic composition of extant multispecies assemblages retains the imprint of past restriction in refugia. {W}e devised an original eco-evolutionary model to investigate the temporal dynamics of a regional species pool inhabiting a given habitat today, and which have experienced habitat reduction in the past. {T}he model includes three components: (i) a demographic component driving stochastic changes in population sizes and extinctions due to habitat availability, (ii) a mutation and speciation component representing how divergent genotypes emerge and define new species over time, and (iii) a trait evolution component representing how trait values have changed across descendants over time. {W}e used this model to simulate dynamics of multispecies assemblages that occupied a restricted refugia in the past and could expand their distribution subsequently. {W}e characterized the past restriction in refugia in terms of two parameters representing the ending time of past refugia, and the extent of habitat restriction in the refugia. {W}e characterized extant patterns of taxonomic, functional and phylogenetic diversity depending on these parameters. {W}e found that extant relative abundances reflect the lasting influence of more recent refugia on demographic dynamics, while phylogenetic composition reflects the influence of more ancient habitat change. {E}xtant functional diversity depends on the interplay between diversification dynamics and trait evolution, offering new options to jointly infer current trait adaptation and past trait evolution dynamics.},
  keywords = {demographic stochasticity ; extinction-speciation dynamics ; species ; abundance spectrum ; {B}rownian trait evolution ; {E}arly-{B}urst trait evolution ; {L}ate-{B}urst trait evolution ; assemblage-weighted trait values ; ecological drift},
  booktitle = {},
  journal = {{F}rontiers in {E}cology and {E}volution},
  volume = {9},
  numero = {},
  pages = {634413 [13 p.]},
  ISSN = {2296-701{X}},
  year = {2021},
  DOI = {10.3389/fevo.2021.634413},
  URL = {https://www.documentation.ird.fr/hor/fdi:010082176},
}