Abstract:
:We indirectly evaluated the selective pressures on dispersal and establishment of Campsiandra angustifolia, a common water-dispersed tree from the Peruvian Amazon, analyzing the variation in the relationship between the volume occupied by dispersal and establishment structures in a total of 535 seeds from 13 trees located at three different habitats. The seeds differed one order of magnitude in their total volume. However, independently of their size and the location of the maternal tree, the relationship between the volume occupied by dispersal and establishment structures was relatively constant (approximately 1) and showed a normal distribution with low skewness, indicating stabilizing selection. These results suggest that, in the habitats studied, dispersal and establishment processes may have similar importance to C. agustifolia. In species with seeds confined in pods, and therefore strongly space-limited, the relative volume of their seeds occupied by dispersal and establishment structures could be a better measure of the trade-off between these two processes than the variation in seed size.
journal_name
Rev Biol Tropjournal_title
Revista de biologia tropicalauthors
Farji-Brener AG,Durán S,Valerio A,Herbas E,Castañeda M,Ochoa J,Romo Msubject
Has Abstractpub_date
2005-03-01 00:00:00pages
63-71issue
1-2eissn
0034-7744issn
2215-2075journal_volume
53pub_type
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journal_title:Revista de biologia tropical
pub_type: 杂志文章
doi:
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journal_title:Revista de biologia tropical
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journal_title:Revista de biologia tropical
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journal_title:Revista de biologia tropical
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journal_title:Revista de biologia tropical
pub_type: 杂志文章
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更新日期:2005-05-01 00:00:00
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journal_title:Revista de biologia tropical
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journal_title:Revista de biologia tropical
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Revista de biologia tropical
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journal_title:Revista de biologia tropical
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journal_title:Revista de biologia tropical
pub_type: 杂志文章
doi:
更新日期:1990-11-01 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
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journal_title:Revista de biologia tropical
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更新日期:2011-12-01 00:00:00
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journal_title:Revista de biologia tropical
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更新日期:2001-12-01 00:00:00
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journal_title:Revista de biologia tropical
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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
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更新日期:1997-03-01 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:2000-12-01 00:00:00
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journal_title:Revista de biologia tropical
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