| Biogeografía histórica de Cardiospermum y Urvillea (Sapindaceae) en América: Paralelismos geográficos e históricos con los Bosques secos estacionales neotropicales</td>
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<td colspan="2" class="text5">关键词:
<a
href='http://oa.las.ac.cn/oainone/service/browseall/viewmore?ptype=JA&q= AND oakeywords:"Análisis de simplicidad de endemismos"'>Análisis de simplicidad de endemismos</a>;
<a
href='http://oa.las.ac.cn/oainone/service/browseall/viewmore?ptype=JA&q= AND oakeywords:"Análisis de trazos"'>Análisis de trazos</a>;
<a
href='http://oa.las.ac.cn/oainone/service/browseall/viewmore?ptype=JA&q= AND oakeywords:"Eventos dispersivos"'>Eventos dispersivos</a>;
<a
href='http://oa.las.ac.cn/oainone/service/browseall/viewmore?ptype=JA&q= AND oakeywords:"Eventos vicariantes"'>Eventos vicariantes</a>;
<a
href='http://oa.las.ac.cn/oainone/service/browseall/viewmore?ptype=JA&q= AND oakeywords:"Región Neotropical"'>Región Neotropical</a>;
<a
href='http://oa.las.ac.cn/oainone/service/browseall/viewmore?ptype=JA&q= AND oakeywords:"Registro fósil"'>Registro fósil</a>;
<a
href='http://oa.las.ac.cn/oainone/service/browseall/viewmore?ptype=JA&q= AND oakeywords:"Dispersal events"'>Dispersal events</a>;
<a
href='http://oa.las.ac.cn/oainone/service/browseall/viewmore?ptype=JA&q= AND oakeywords:"Fossil records"'>Fossil records</a>;
<a
href='http://oa.las.ac.cn/oainone/service/browseall/viewmore?ptype=JA&q= AND oakeywords:"Neotropical region"'>Neotropical region</a>;
<a
href='http://oa.las.ac.cn/oainone/service/browseall/viewmore?ptype=JA&q= AND oakeywords:"Parsimony analysis of endemicity"'>Parsimony analysis of endemicity</a>;
<a
href='http://oa.las.ac.cn/oainone/service/browseall/viewmore?ptype=JA&q= AND oakeywords:"Track analysis"'>Track analysis</a>;
<a
href='http://oa.las.ac.cn/oainone/service/browseall/viewmore?ptype=JA&q= AND oakeywords:"Vicariant events"'>Vicariant events</a>;
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<td class="text2" colspan="2" style="color: #2575A5;">DOI : </td>
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<td colspan="2" class="text5" style="color: #2575A5;">来源:<a
href='http://oa.las.ac.cn/oainone/service/browseall/viewmore?ptype=JA&q= AND oasourcestr:"DOAJ"'>
DOAJ</a></td>
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<div class="article">
<h6>【 摘 要 】</h6>
<p style="text-align: justify; text-indent: 2em;">
Los géneros Cardiospermum y Urvillea (Paullinieae) están ampliamente distribuidos en América, desde el centro de los Estados Unidos hasta el centro de la Argentina. Los registros fósiles correspondientes al Eoceno tardío de América del Norte hasta el Plioceno de América del Sur registran patrones de distribución en ambos géneros durante la Era Cenozoica. El objetivo de este trabajo es establecer las áreas de endemismo y los patrones de distribución de Cardiospermum y Urvillea mediante un análisis de simplicidad de endemismos (PAE) basado en cuadrantes y un análisis panbiogeográfico basado en el algoritmo propuesto por Echeverry & Morrone (2010). El área de estudio está comprendida por las regiones Neártica y Neotropical, la Zona de transición sudamericana y la Zona de transición mexicana. La información de la distribución proviene del tratamiento taxonómico realizado por Ferrucci (2000) y especímenes de herbario de 33 especies de ambos géneros. El PAE permitió detectar y mapear seis áreas de endemismo. Los resultados del análisis panbiogeográfico y el registro fósil nos permitieron relacionar estas áreas de endemismos entre ellas, demostrando que coinciden con la actual distribución geográfica de los bosques secos estacionales neotropicales. Estos resultados sugieren un temprano evento de dispersión y una posterior serie de eventos vicariantes relacionados con la expansión y reducción de los bosques secos estacionales neotropicales que explicarían los patrones de distribución actuales de Cardiospermum y Urvillea en América.<br>Historical biogeography of Cardiospermum and Urvillea (Sapindaceae) in America: Geographic and historical parallelism with the Neotropical seasonally dry forest. The genera Cardiospermum and Urvillea (Paullinieae) are widely distributed in the Americas, from central United States to central Argentina. The fossil records from the late Eocene of North America to the Pliocene of South America record an early distribution pattern of both genera during the Cenozoic Era. This study aimed to establish areas of endemism and distribution patterns of Cardiospermum and Urvillea by means of a grid-based parsimony analysis of endemicity (PAE) and a panbiogeographical analysis based in the algorithm proposed by Echeverry & Morrone (2010). The study area includes the Nearctic and Neotropical regions, the South American transition zone and the Mexican transition zone. We used the distribution information of Ferrucci´s (2000) taxonomic treatment and the herbarium specimens for 33 species of both genera. The PAE led us to detect and map six areas of endemism. The panbiogeographic results and the fossil records allowed us to relate these areas of endemism between them, showing that they match with the current geographical distribution of the Neotropical seasonally dry forests. These results reveal an early dispersal event and a posterior series of vicariant events linked with the expansion and reduction of the Neotropical seasonally dry forests, which could explain the current distribution patterns of Cardiospermum and Urvillea in the Americas.</p>
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<h6>【 授权许可】</h6>
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