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| Registros recuperados: 18 | |
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| Schram, F.R.. |
| The study of biogeography was once a pillar of evolution science. Both Darwin and especially Wallace found great inspiration from the consideration of animal distributions. However, what is to happen to this discipline in a time of global trade, mass movement of people and goods, and the resulting globalization of the planet’s biota? Can we still hope to delve into the fine points of past geography as it affected animal and plant evolution? Maybe we can, but only with careful study of life forms that suffer minimal affects – at present – from globalization, viz., marginal faunas of quite inaccessible environments. Two examples taken from syncarid crustaceans illustrate this point. Bathynellacea provide insight into ancient patterns of distribution and... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Anaspidacea; Bathynellacea; Globalization; Historical biogeography; Vicariance; 42.74. |
| Ano: 2008 |
URL: http://www.repository.naturalis.nl/record/280481 |
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| Leroy, Boris; Dias, Murilo S.; Giraud, Emilien; Hugueny, Bernard; Jézéquel, Céline; Leprieur, Fabien; Oberdorff, Thierry; Tedesco, Pablo A. |
| Aim To define the major biogeographical regions and transition zones for freshwater fish species. Taxon Strictly freshwater species of actinopterygian fish (i.e. excluding marine and amphidromous fish families). Methods We based our bioregionalization on a global database of freshwater fish species occurrences in drainage basins, which, after filtering, includes 11,295 species in 2,581 basins. On the basis of this dataset, we generated a bipartite (basin‐species) network upon which we applied a hierarchical clustering algorithm (the Map Equation) to detect regions. We tested the robustness of regions with a sensitivity analysis. We identified transition zones between major regions with the participation coefficient, indicating the degree to which a basin... |
| Tipo: Text |
Palavras-chave: Actinopterygians; Biogeographical regions; Biogeography; Bioregionalization; Bioregions; Dispersal; Freshwater fish; Transition zones; Vicariance; Zoogeographical regions. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00514/62589/66985.pdf |
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| DOMÍNGUEZ,M. CECILIA; ROIG-JUÑENT,SERGIO A. |
| The purpose of this study was to achieve a hypothesis explaining the biogeographical history of the family Fanniidae, especially that of the species from Patagonia, the Neotropics, Australia, and New Zealand. We used "dispersal-vicariance analysis" (DIVA), an event-based parsimony method, to analyze the most parsimonious phylogenetic hypothesis for the family, obtained by Domínguez & Roig-Juñent (2008). The analysis resulted in 32800 alternative equally optimal reconstructions that indicate that the ancestor of the Fanniidae was widely distributed across different regions of the world, which along with the subsequent separation of two clades that correspond to the Laurasic and Gondwanan Landmasses allow the proposal of an older age than in previous... |
| Tipo: Journal article |
Palavras-chave: Age of Fanniidae; Dispersal; DIVA; Gondwana; Vicariance. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2011000100005 |
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| Sanz, Sebastián; Platvoet, Dirk. |
| On several occasions, shrimps belonging to a new species of the genus Typhlatya were collected in a cave in the province of Castellón, Spain. This is the first record of the genus in the Iberian Peninsula. The species is described and the validity, distribution, and zoogeography of the genus, as well as the status of the genus Spelaeocaris, are discussed. Former models for the evolution of the genus Typhlatya and its genus group are reviewed, as well as the system of inner classification of the Atyidae and its biogeographical meaning. For the age and evolution of the genus we developed a new model based on vicariance principles that involves further evolution of each species after the disruption of the ancestral range. This allows new estimations for the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Typhlatya; Decapoda; Spain; Subterranean waters; Systematics; Zoogeography; Vicariance; Evolution; Key to genus. |
| Ano: 1995 |
URL: http://www.repository.naturalis.nl/record/503881 |
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| Rooijen, J. van; Vogel, G.. |
| The colubrid snake Dendrelaphis subocularis is distributed throughout Indochina, the southern limit of its range corresponding with the Isthmus of Kra, an important biogeographic barrier that separates the Indochinese biota from the Sundaic biota. This study presents five museum specimens that represent a hitherto unknown population that inhabits the Sundaic island Java. Thus, the distribution of Dendrelaphis subocularis is disjunct, with the Javan population being isolated by 2000 kilometres from the nearest mainland population. Principal Components Analysis was applied to morphological data taken from the five Javan specimens as well as from 26 museum specimens of Indochinese origin. Regression analysis of the spatial pattern of the resulting scores... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Indochina; Java; Sweepstake dispersal; Taxonomy; Vicariance; 42.82. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/349893 |
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| Bonilla-Rivero,Ana; López-Rojas,Héctor. |
| We conducted a phylogeographic analysis of the genus Gephyrocharaxin Venezuela to evaluate geomorphologic evidence for the formation of the country's main watersheds and to establish a biogeographical hypothesis of possible diversification mechanisms of the Neotropical freshwater fish fauna. We assayed eight enzyme systems and general proteins to estimate genetic variability (H, P), intraspecific structuring in several Gephyrocharax valencia and G. venezuelae populations (FIS, FIT, and FST), and a phylogenetic approach for the three species of Gephyrocharax in Venezuela, using Corynopoma riisei as the external group. Fourteen presumptive lociindicate that populations of the three species of Gephyrocharaxanalyzed show a clear genetic inter-specific... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Isoenzymes; Speciation; Venezuela; Vicariance. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300487 |
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| Santos,Charles Morphy Dias dos. |
| The biogeographical Assumptions 0, 1, and 2 (respectively A0, A1 and A2) are theoretical terms used to interpret and resolve incongruence in order to find general areagrams. The aim of this paper is to suggest the use of A2 instead of A0 and A1 in solving uncertainties during cladistic biogeographical analyses. In a theoretical example, using Component Analysis and Primary Brooks Parsimony Analysis (primary BPA), A2 allows for the reconstruction of the true sequence of disjunction events within a hypothetical scenario, while A0 adds spurious area relationships. A0, A1 and A2 are interpretations of the relationships between areas, not between taxa. Since area relationships are not equivalent to cladistic relationships, it is inappropriate to use the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Assumption 2; Brooks Parsimony Analysis; Cladistic Biogeography; Component Analysis; Vicariance. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492011001900001 |
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| Arntzen, J.W.; García-París, M.. |
| Three competing phylogenetic hypotheses for the genus Alytes (midwife toads) are evaluated. Based on quantitative coding of protein characters the most parsimonious solution shows a sister taxon relationship for Alytes dickhilleni and A. muletensis. The alternatives in which A. obstetricans has its sister group in either A. dickhilleni or A. muletensis lack support. Using calibrations derived from protein evolutionary rates, the vicariant events giving rise to A. obstetricans and the lineage leading to the A. muletensis and A. dickhilleni clade and the subsequent splitting between A. muletensis and A. dickhilleni cannot be placed much earlier than the Miocene-Pliocene boundary. Biogeographical scenarios invoking an earlier time of divergence should be... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Allozymes; Alytes; Biogeography; Midwife toads; Phylogenetics; Spain; Taxonomy; Vicariance. |
| Ano: 1997 |
URL: http://www.repository.naturalis.nl/record/504096 |
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| Delogu, V.; Curini-Galletti, M.. |
| Seven new Parotoplana species (Proseriata: Otoplanidae) from the Mediterranean, belonging to the P. jondelii complex, are described. They are characterized by the presence of numerous (14-22) copulatory spines. These are characteristically broad, and arranged in a girdle around the distal portion of the ejaculatory duct. In most species, dorsal and ventral spines are distinctly different from the rest of the spines of the girdle. This morphology of the copulatory spines is apomorphic for the genus Parotoplana, and supports a close relationship among these species. The new species (P. axi sp. n., P. crassispina sp. n., P. carthagoensis sp. n., P. gracilispina sp. n., P. ichnusae sp. n., P. obtusispina sp. n., P. pulchrispina sp. n.) are distinguished by... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Biodiversity; Meiofauna; New species; Parotoplana; Taxonomy; Vicariance; 42.76. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/316129 |
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| Arntzen, J.W.; Themudo, G. Espregueira; Wielstra, B.. |
| Newts of the genus Triturus (Amphibia, Caudata, Salamandridae) are distributed across Europe and adjacent Asia. In spite of its prominence as a model system for evolutionary research, the phylogeny of Triturus has remained incompletely solved. Our aim was to rectify this situation, to which we employed nuclear encoded proteins (40 loci) and mitochondrial DNA-sequence data (mtDNA, 642 bp of the ND4 gene). We sampled up to four populations per species covering large parts of their ranges. Allozyme and mtDNA data were analyzed separately with parsimony, distance, likelihood and Bayesian methods of phylogenetic inference. Existing knowledge on taxonomic relationships was confirmed, including the monophyly of the genus and the groups of crested newts (four... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Allozymes; Historical biogeography; Mitochondrial DNA-sequences; Triturus macedonicus; Triturus marmoratus; Vicariance; 42.82. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/262648 |
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| Registros recuperados: 18 | |
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