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80 results for “Historical structures”
Figure 2 in Historical demography and spatial genetic structure of the subterranean rodent Ctenomys magellanicus in Tierra del Fuego (Argentina)
Figure 2. Bayesian inference trees of Ctenomys genus. A, tree derived from the D-loop marker. B, tree derived from Cyt b. Numbers next to branches are bootstrap support values and Bayesian posterior probabilities, respectively.
Figure 1 in Historical demography and spatial genetic structure of the subterranean rodent Ctenomys magellanicus in Tierra del Fuego (Argentina)
Figure 1. Geographical distribution of Ctenomys magellanicus sampling sites along the study area. Squares show the two regions: north (steppe, chromosome form 2n = 34) and south (ecotone, chromosome form 2n = 36). Each region was subdivided into subpopulations: two for the north (subpopulations A and B) and four for the south (subpopulations C–F).
FIGURES 68–77. Compsoneuriella spp, nymphal structures. Figs 68-70 in The concept of Compsoneuria Eaton, 1881 revisited in light of historical and new material from the Sunda Islands (Ephemeroptera: Heptageniidae: Ecdyonurinae)
FIGURES 68–77. Compsoneuriella spp, nymphal structures. Figs 68-70: Compsoneuriella sp. 1 from Thailand. Fig. 68: Outline of the labium (left side paraglossa only drawn); Fig. 69: Bristles on the upper face of hind femora; Fig. 70: Posterior margin of tergite IV. Figs 71-73: Compsoneuriella langensis. Fig. 71: Outline of the labrum; Fig. 72: Outline of the glossae; Fig. 73: Outline of gill VII. Figs 74-77: Compsoneuriella tagbanua. Fig. 74: Outline of the labrum; Fig. 75: Outline of the glossae; Fig. 76: Detail of the left mandible; Fig. 77: Scattered setae on the ventral side of the galea.
Phylogeography and population genetic structure of the cardinal tetra (Paracheirodon axelrodi) in the Orinoco basin and Negro River (Amazon basin): evaluating connectivity and historical patterns of diversification
<p class="MsoNormal"><span class="Fuentedeprrafopredeter1"><span>The Neotropics contain one of the most diverse assemblages of freshwater fishes worldwide. Part of this diversity is shared between the Orinoco and Amazon basins. These basins have been separated for a long time due to the Vaupes Arch, rising between 10 - 11 Ma. T</span></span><span class="Fuentedeprrafopredeter1"><span>oday, there is only one permanent connection between the Orinoco and Negro </span></span><span class="Fuentedeprrafopredeter1"><span>(Amazon) </span></span><span class="Fuentedeprrafopredeter1"><span>basins, known as the Casiquiare Canal</span></span><span class="Fuentedeprrafopredeter1"><span>. </span></span><span class="Fuentedeprrafopredeter1"><span>However, alternative corridors allowing fish dispersion between both basins have been proposed. The cardinal tetra (<em>Paracheirodon axelrodi),</em> the most important fish in the ornamental world market, is distributed in both basins. Here we investigated </span></span><span class="Fuentedeprrafopredeter1"><em><span>P. axelrodi </span></em></span><span class="Fuentedeprrafopredeter1"><span>phylogeography, population structure, and potential routes of migration and connectivity between the two basins. A total of 468 bp of the mitochondrial gene (COI), 555 bp of the nuclear gene fragment (MYH6), and 8 microsatellite loci were analyzed. </span></span><span class="Fuentedeprrafopredeter1"><span>As a result, we found two major genetic clusters as the most likely scenario (K=2), but they were not discreetly distributed between basins. A gradient of genetic admixture was observed in Cucui and </span></span><span class="Fuentedeprrafopredeter1"><span>São</span></span><span class="Fuentedeprrafopredeter1"><span> Gabriel da Cachoeira, between the upper Negro River and the upper Orinoco. Samples from the middle-lower Negro River were highly structured. </span></span><span class="Fuentedeprrafopredeter1"><span>Cucui (Negro basin) was more similar to the Orinoco than to the rest of the Negro basin populations. </span></span><span class="Fuentedeprrafopredeter1"><span>However, substructure was also observed by the discriminant analysis, fixation indices and other hierarchichal structure analyses (K=3-6), showing three major geographic clusters: Orinoco, Cucui, and the remaining of the Negro basin. </span></span><span class="Fuentedeprrafopredeter1"><span>Unidirectional migration patterns were detected between basins: via Cucui toward Orinoco and via the remaining of the Negro basin toward Orinoco. Results from the Relaxed Random Walk analysis support a very recent origin of this species in the headwater Orinoco basin (Western Guiana Shield, at late Pleistocene) with a later rapid colonization of the remaining Orinoco basin and almost simultaneously the Negro River via Cucui, between 0.115 until about 0.001 Ma. Historical biogeography and population genetic patterns observed here for Cardinal tetra, seem to be better explained by river capture, physical, or ecological barriers than due to the geographic distance.</span></span></p>
APPENDIX F: Full List of Historical Structures in Sta. Cruz, Manila (NHCP, 2022)
<p>APPENDIX F: Full List of Historical Structures in Sta. Cruz, Manila (NHCP, 2022) for Memoryscapes in Recto-spection: Visualizing Avenida, Recto, and Carriedo, Manila as Virtual Memoryscapes through immersive mobile technologies and digital heritage interpretation. Thesis Adviser: Dr. Cathe Desiree S. Nadal, Ph. D.</p>
APPENDIX G: Full List of Historical Structures in Quiapo, Manila (NHCP, 2022)
<p>APPENDIX G: Full List of Historical Structures in Quiapo, Manila (NHCP, 2022) for Memoryscapes in Recto-spection: Visualizing Avenida, Recto, and Carriedo, Manila as Virtual Memoryscapes through immersive mobile technologies and digital heritage interpretation. Thesis Adviser: Dr. Cathe Desiree S. Nadal, Ph. D.</p>
Data from: Comparative analysis indicates historical persistence and contrasting contemporary structure in sympatric woody perennials of semi-arid south-west Western Australia
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Raw data and alignments for: Application of palaeogenetic techniques to historic mollusc shells reveals phylogeographic structure in a New Zealand abalone
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Data from: Historical processes and contemporary ocean currents drive genetic structure in the seagrass Thalassia hemprichii in the Indo-Australian Archipelago
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Data from: Genetic structure of populations of whale sharks among ocean basins and evidence for their historic rise and recent decline
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Data from: The influence of historical dispersal on the phylogenetic structure of tree communities in the tropical Andes
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Data from: Ecological and historical determinants of population genetic structure and diversity in the Mediterranean shrub Rosmarinus officinalis (Lamiaceae)
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Data from: The interplay of dispersal limitation, rivers, and historical events shapes the genetic structure of an Amazonian frog
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Data from: Historical introgression and the role of selective vs. neutral processes in structuring nuclear genetic variation (AFLP) in a circumpolar marine fish, the capelin (Mallotus villosus)
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Phylogeography and population genetic structure of the cardinal tetra (Paracheirodon axelrodi) in the Orinoco basin and Negro River (Amazon basin): evaluating connectivity and historical patterns of diversification
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Data from: Spatial genetic structure of the mountain pine beetle (Dendroctonus ponderosae) outbreak in western Canada: historical patterns and contemporary dispersal
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Data from: Genetic structure in the European endemic seabird, Phalacrocorax aristotelis, was shaped by a complex interaction of historical and contemporary, physical and non-physical drivers
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Data from: The influence of contemporary and historic landscape features on the genetic structure of the sand dune endemic, Cirsium pitcheri (Asteraceae)
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Historical translocations and stocking alter the genetic structure of a Mediterranean lobster fishery
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Data from: Population structure and historical demography of South American sea lions provide insights into the catastrophic decline of a marine mammal population
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