Phytogeographical patterns of dry forests sensu stricto in northern Minas Gerais State, Brazil
The Deciduous Complex that occurs in northern Minas Gerais State, Brazil, raises questions about the floristic affinities of these formations in relation to neighboring phytogeographical domains. Little is known about the identity of the seasonal forest formations that comprise this complex, or abou...
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| Format: | Article |
| Language: | English |
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Academia Brasileira de Ciências
2013-06-01
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| Series: | Anais da Academia Brasileira de Ciências |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200623&lng=en&tlng=en |
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| author | DANIEL M. ARRUDA WALNIR G. FERREIRA-JUNIOR REINALDO DUQUE-BRASIL CARLOS E.R. SCHAEFER |
| author_facet | DANIEL M. ARRUDA WALNIR G. FERREIRA-JUNIOR REINALDO DUQUE-BRASIL CARLOS E.R. SCHAEFER |
| author_sort | DANIEL M. ARRUDA |
| collection | DOAJ |
| description | The Deciduous Complex that occurs in northern Minas Gerais State, Brazil, raises questions about the floristic affinities of these formations in relation to neighboring phytogeographical domains. Little is known about the identity of the seasonal forest formations that comprise this complex, or about its relationships to abiotic components, such as soils, topography and climate. This study aimed to recognize the patterns of floristic similarity of all studied fragments of dry forest of northern Minas Gerais with soil and climate attributes, based on the available database. Cluster analysis indicated the existence of two floristic groups that had clear associations with either the Koppen's BSh (semi-arid) or Aw (seasonal tropical) climates. Likewise, the subdivisions of these groups showed clear associations with the dominant soil classes in the region. The Red-Yellow Latosol is the dominant soil classes in the BSh climatic domain, seconded by alluvial areas associated with Fluvic Neosols. The Aw domain comprised a much varied set of soils: Nitosols, Argisols, Cambisols and Litholic Neosols, most derived from the Bambuí limestone/slate formation. The ecotonal nature of northern Minas Gerais State provides a complex interaction between the flora of neighboring phytogeographical domains. This, allied to pedogeomorphological factors, allowed a better understanding of the effects of late Quaternary climate changes for the Deciduous Complex evolution. We conclude that the Latosols under present-day semi-arid climates (BSh) are relicts of former wetter climates, during which humid forest (semideciduous) expansion took place. Later, these semideciduous forests were subjected to a much drier climate, when selection for deciduousness led to the present-days Deciduous Complex scenario. |
| first_indexed | 2024-12-12T07:30:57Z |
| format | Article |
| id | doaj.art-ece222c012144717b3a995273cfbcc9f |
| institution | Directory Open Access Journal |
| issn | 1678-2690 |
| language | English |
| last_indexed | 2024-12-12T07:30:57Z |
| publishDate | 2013-06-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-ece222c012144717b3a995273cfbcc9f2022-12-22T00:33:01ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902013-06-0185262363410.1590/S0001-37652013000200011S0001-37652013000200623Phytogeographical patterns of dry forests sensu stricto in northern Minas Gerais State, BrazilDANIEL M. ARRUDAWALNIR G. FERREIRA-JUNIORREINALDO DUQUE-BRASILCARLOS E.R. SCHAEFERThe Deciduous Complex that occurs in northern Minas Gerais State, Brazil, raises questions about the floristic affinities of these formations in relation to neighboring phytogeographical domains. Little is known about the identity of the seasonal forest formations that comprise this complex, or about its relationships to abiotic components, such as soils, topography and climate. This study aimed to recognize the patterns of floristic similarity of all studied fragments of dry forest of northern Minas Gerais with soil and climate attributes, based on the available database. Cluster analysis indicated the existence of two floristic groups that had clear associations with either the Koppen's BSh (semi-arid) or Aw (seasonal tropical) climates. Likewise, the subdivisions of these groups showed clear associations with the dominant soil classes in the region. The Red-Yellow Latosol is the dominant soil classes in the BSh climatic domain, seconded by alluvial areas associated with Fluvic Neosols. The Aw domain comprised a much varied set of soils: Nitosols, Argisols, Cambisols and Litholic Neosols, most derived from the Bambuí limestone/slate formation. The ecotonal nature of northern Minas Gerais State provides a complex interaction between the flora of neighboring phytogeographical domains. This, allied to pedogeomorphological factors, allowed a better understanding of the effects of late Quaternary climate changes for the Deciduous Complex evolution. We conclude that the Latosols under present-day semi-arid climates (BSh) are relicts of former wetter climates, during which humid forest (semideciduous) expansion took place. Later, these semideciduous forests were subjected to a much drier climate, when selection for deciduousness led to the present-days Deciduous Complex scenario.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200623&lng=en&tlng=enclimafloresta estacional decidualecotonofitogeografiasolo |
| spellingShingle | DANIEL M. ARRUDA WALNIR G. FERREIRA-JUNIOR REINALDO DUQUE-BRASIL CARLOS E.R. SCHAEFER Phytogeographical patterns of dry forests sensu stricto in northern Minas Gerais State, Brazil Anais da Academia Brasileira de Ciências clima floresta estacional decidual ecotono fitogeografia solo |
| title | Phytogeographical patterns of dry forests sensu stricto in northern Minas Gerais State, Brazil |
| title_full | Phytogeographical patterns of dry forests sensu stricto in northern Minas Gerais State, Brazil |
| title_fullStr | Phytogeographical patterns of dry forests sensu stricto in northern Minas Gerais State, Brazil |
| title_full_unstemmed | Phytogeographical patterns of dry forests sensu stricto in northern Minas Gerais State, Brazil |
| title_short | Phytogeographical patterns of dry forests sensu stricto in northern Minas Gerais State, Brazil |
| title_sort | phytogeographical patterns of dry forests sensu stricto in northern minas gerais state brazil |
| topic | clima floresta estacional decidual ecotono fitogeografia solo |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200623&lng=en&tlng=en |
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