Knowledge Resource Center for Ecological Environment in Arid Area
The Brazilian Caatinga: Phytogeographica patterns inferred from distribution data of the Leguminosae | |
Paganucci de Queiroz, Luciano | |
通讯作者 | Paganucci de Queiroz, Luciano |
会议名称 | Meeting on Tropical Savannas and Seasonally Dry Forests |
会议日期 | SEP 14-20, 2003 |
会议地点 | Edinburgh, SCOTLAND |
英文摘要 | The caafinga represents the largest and most isolated of the South American dry forests, occupying more than 850,000 km(2) in the semi-arid region of north-eastern Brazil. Leguminosae is the best represented family in the caatinga, with 293 species in 77 genera, and comprises almost one-third of the total plant diversity there. The geographical distribution patterns of its taxa define seven major centres of endemism. Similarity analyses combined with these patterns reveal two major floristic groups with distinct composition and phenological traits. One group occupies c.70% of a mostly continuous surface of soils primarily derived from crystalline basement rocks. The other group occurs on disjunct and sandy sedimentary surfaces. The data support a scenario wherein the sedimentary areas became dissected during a huge process of pediplanation during the Tertiary period, which promoted both the vicariance of its flora and opened the way to the expansion of the flora related to the seasonally dry tropical forests. |
来源出版物 | Neotropical Savannas and Seasonally Dry Forests: Plant Diversity, Biogeography, and Conservation |
出版年 | 2006 |
期号 | 69 |
页码 | 121-157 |
ISBN | 0-8493-2987-6 |
出版者 | CRC PRESS-TAYLOR & FRANCIS GROUP |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Brazil |
收录类别 | CPCI-S |
WOS记录号 | WOS:000239022200006 |
WOS关键词 | NORTHEASTERN BRAZIL ; CLIMATE-CHANGE ; SOUTH-AMERICA ; VEGETATION ; FORESTS ; BAHIA ; SPECIATION ; PHENOLOGY ; PRIMATE ; LEGUMES |
WOS类目 | Biology ; Plant Sciences ; Ecology ; Forestry |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Plant Sciences ; Environmental Sciences & Ecology ; Forestry |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/296094 |
作者单位 | (1)Univ Estadual Feira De Santana, Dept Ciencias Biol, BR-44031460 Feira De Santana, BA, Brazil |
推荐引用方式 GB/T 7714 | Paganucci de Queiroz, Luciano. The Brazilian Caatinga: Phytogeographica patterns inferred from distribution data of the Leguminosae[C]:CRC PRESS-TAYLOR & FRANCIS GROUP,2006:121-157. |
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