Abstract：
:River floodplains have a high biological diversity that is intensely influenced by vegetation dynamics, changes in space and time scales, and the river's hydrological regime. The vegetation composition of the medium and lower Paraná River has been analyzed previously, with different approaches and criteria that cannot be compared. The aim of this study is to analyze the diversity of the herbaceous vegetation over long time spans, from its regeneration after a catastrophic flood to its recovery, in the North and South sites of the flooding valley of the Medium Paraná River. The first sampling of a pioneer community was performed after the 1982-83 catastrophic flood, and included the surveillance of two plots in two successive recovery stages. Floristic composition and cover-abundance of all species were recorded per plot. Floristic richness, using jackknife, Shannon and Hurlbert diversity and Simpson dominance curves were calculated for each site and for each survey, using EcoSim (software). Floristic richness was higher in the North of Medium Paraná, while dominance was higher in the South. Diversity indexes did not varied significantly and resulted in relatively stable values, because its components compensate each other.
journal_name
Rev Biol Tropjournal_title
Revista de biologia tropicalauthors
Franceschi EA,Torres PS,Lewis JPsubject
Has Abstractpub_date
2010-06-01 00:00:00pages
707-16issue
2eissn
0034-7744issn
2215-2075journal_volume
58pub_type
杂志文章abstract：:In India, freshwater environments are experiencing serious threats to biodiversity, and there is an urgent priority for the search of alternative techniques to promote fish biodiversity conservation and management. With this aim, the present study was undertaken to assess the fish biodiversity within and outside a riv...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v61i1.10942
更新日期：2013-03-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：1976-06-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2013-06-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2005-03-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2009-12-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v57i1-2.11360
更新日期：2009-03-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2010-10-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2012-12-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2010-12-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v54i2.13940
更新日期：2006-06-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v62i4.13057
更新日期：2014-12-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v56i2.5610
更新日期：2008-06-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2001-03-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：1999-12-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2014-06-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
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更新日期：1986-06-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：1984-11-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2007-09-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2011-09-01 00:00:00
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journal_title：Revista de biologia tropical
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更新日期：2013-09-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2000-06-01 00:00:00
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journal_title：Revista de biologia tropical
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更新日期：2010-09-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v54i2.13910
更新日期：2006-06-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v64i3.18806
更新日期：2016-09-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v54i1.13981
更新日期：2006-03-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v1i2.15414
更新日期：2004-09-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章,评审
doi：
更新日期：1988-11-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
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更新日期：2004-12-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v60i3.1771
更新日期：2012-09-01 00:00:00
