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4 results for “Ancestral range estimation”
Data from: Schneider et al. (2021). Predominantly eastward long-distance dispersal in pantropical Ochnaceae inferred from ancestral range estimation and phylogenomics. Frontiers in Ecology and Evolution.
<p>The data contains (a) DNA sequence alignments of concatenated nuclear loci, near-complete plastid genomes and plastid genomes with sites removed at a 10% gap threshold; (b) maximum clade credibility trees obtained from divergence time estimation in BEAST with each of the alignments; (c) area codings and the input tree (nuclear DNA only) for the ancestral area analysis in BioGeoBears.</p>
Extant species fail to estimate ancestral geographical ranges at older nodes in primate phylogeny
<p>A clade's evolutionary history is shaped, in part, by geographical range expansion, sweepstakes dispersal and local extinction. A rigorous understanding of historical biogeography may therefore yield insights into macroevolutionary dynamics such as adaptive radiation. Modern historical biogeographic analyses typically fit statistical models to molecular phylogenies, but it remains unclear whether extant species provide sufficient signal or if well-sampled phylogenies of extinct and extant taxa are necessary to produce meaningful estimates of past ranges. We investigated the historical biogeography of Primates and their euarchontan relatives using a novel meta-analytical phylogeny of over 900 extant ( n = 419) and extinct ( n = 483) species spanning their entire evolutionary history. Ancestral range estimates for young nodes were largely congruent with those derived from molecular phylogeny. However, node age exerts a significant effect on ancestral range estimate congruence, and the probability of congruent inference dropped below 0.5 for nodes older than the late Eocene, corresponding to the origins of higher-level clades. Discordance was not observed in analyses of extinct taxa alone. Fossils are essential for robust ancestral range inference and biogeographic analyses of extant clades originating in the deep past should be viewed with scepticism without them.</p>
Figure 6. Ancestral ranges within Magrebmelia inferred with the package BioGeoBEARS using the DEC model. Temporal estimates derived from a in The Strait of Gibraltar is an ineffective palaeogeographic barrier for some flightless darkling beetles (Coleoptera: Tenebrionidae: Pimelia)
Figure 6. Ancestral ranges within Magrebmelia inferred with the package BioGeoBEARS using the DEC model. Temporal estimates derived from a relaxed molecular clock analysis. Maximum Clade Credibility (MCC) tree showing clade divergence times in millions of years. Coloured squares represent ancestral ranges depicted in the map, upper left; A, Betic, B, Rifean/ Kabylia, C, Middle Atlas, D, High Atlas. Coloured branches correspond to arrows in the lower left maps (1, 2), which indicate diversification route of Magrebmelia throughout the western Mediterranean Basin since the Early Miocene [East lineage (red) and South lineage (purple)], based on biogeographical reconstructions of western Mediterranean Pimelia (MasPeinado et al., 2018). Populations morphologically assignable to P. xauenensis but related to P. mauritanica are indicated by specimen numbers. Maps 1–2 modified from Andeweg (2002); Meulenkamp & Sissingh (2003).
Extant species fail to estimate ancestral geographical ranges at older nodes in primate phylogeny
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