文章基本信息

标题：Regionalización biogeográfica de Zacatecas, México, con base en los patrones de distribución de la familia Asteraceae
本地全文：下载
作者：JOSÉ LUIS VILLASEÑOR ; JOSÉ DE JESÚS BALLEZA ; GUILLERMO IBARRA MANRIQUEZ 等
期刊名称：Revista Mexicana de Biodiversidad
印刷版ISSN：1870-3453
出版年度：2009
卷号：76
期号：001
出版社：Instituto de Biología
摘要：THE GEOGRAPHIC DISTRIBUTION PATTERNS OF 456 SPECIES OF ASTERACEAE (MAGNOLIOPHYTA) NATIVE TO ZACATECAS WERE ANALYSED. THE AIM WAS TO PROPOSE A STATE´S BIOGEOGRAPHIC ZONATION. THE STATE WAS DIVIDED IN 28 OPERATIONAL GEOGRAPHIC UNITS (OGUS) AND FOR EACH ONE THE NUMBER OF SPECIES, THE NUMBER OF SPECIMENS COLLECTED, THE VEGETATION TYPES AND THE ALTITUDINAL RANGE WERE DETERMINED. FLORISTIC SIMILARITIES AMONG OGUS WERE OBTAINED BY USING A CLASSIFICATORY PROCEDURE AND THE JACCARD´S SIMILARITY COEFFICIENT. THE RICHEST OGU RECORDED 190 SPECIES OF ASTERACEAE (OGU 28), THE POOREST 32 SPECIES (OGU 5); LIKEWISE, THE DISTRIBUTION OF THE SPECIES ENDEMIC TO MEXICO VARIED FROM 98(OGU 28) TO EIGHT (OGU 5 AND 6). THE OGUS WITH THE LARGER NUMBER OF VEGETATION TYPES AND WITH A LARGER ALTITUDINAL RANGE WERE ALSO THOSE WITH THE LARGER NUMBER OF SPECIES. ABOUT 34% OF THE SPECIES WERE CONSIDERED AS RARE, BECAUSE THEY WERE RECORDED IN A SINGLE OGU. THE RESULTS SUGGEST THAT THE SPECIES OF ASTERACEAE CAN BE DIVIDED IN TWO MAIN GROUPS: (I) THOSE THRIVING MOSTLY IN THE DRY ENVIRONMENTS CHARACTERISTIC OF THE MEXICAN HIGHLAND AND (II) THOSE THRIVING MOSTLY IN THE TEMPERATE AND WARMS HABITATS FOUND ESPECIALLY ALONG THE SIERRA MADRE OCCIDENTAL. THE ANALYSIS IDENTIFIED TWO BIOGEOGRAPHIC «DISTRICTS», FORMING PART OF THE FLORISTIC PROVINCES ALREADY DEFINED BY RZEDOWSKI (1978).
关键词：ASTERACEAE;MÉXICO;DISTRIBUTIONAL PATTERNS;FLORISTIC REGIONS;ZACATECAS;ASTERACEAE;MÉXICO;PATRONES DE DISTRIBUCIÓN;REGIONES FLORÍSTICAS;ZACATECAS