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High tree alpha-diversity in Amazonian Ecuador

High tree alpha-diversity in Amazonian Ecuador,10.1007/BF00115330,Biodiversity and Conservation,Renato Valencia,Henrik Balslev,Guillermo Paz Y Miño C

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High tree alpha-diversity in Amazonian Ecuador   (Citations: 130)
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In a 1 ha square plot of terra firme forest at 260 m elevation in Amazonian Ecuador, all trees with diameter at breast height (dbh) =5 cm were studied. There were 1561 individuals, 473 species, 187 genera and 54 families. Of these, 693 individuals, 307 species, 138 genera and 46 families had a dbh =10 cm. This is the highest number of tree species ever recorded for a tropical rain forest sample of this size. In both dbh classes, the most species-rich families were: Fabaceae sensu lato (including Mimosaceae and Caesalpiniaceae), Lauraceae and Sapotaceae; the most species-rich genera, were Pouteria, Inga and Protium. The vertical space was partitioned among species: 166 species were found only in the 5–10 dbh cm class and were mostly sub-canopy treelets, and 307 species with dbh =10 cm were mostly large canopy trees.
Journal: Biodiversity and Conservation - BIODIVERS CONSERV , vol. 3, no. 1, pp. 21-28, 1994
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    • ...Richness of woody species reported by different workers ranges from low value of 20 species ha−1 in Brazil (Campbell, Stone, and Rosas 1992) through the value of 137 to 168 in Central Amazonia (Ferreira and Prance 1998) to 307 species ha−1 in Amazonian Ecuador (Valencia, Balslev, and Paz y Miño 1994)...

    C. Kunhikannan, et al. Diversity of woody species in the Medicinal Plant Conservation Area (M...

    • ...For example, some tropical rain forests contain[300 tree species in 1 ha (Valencia et al. 1994), whereas others are dominated by one to a few species (Connell and Lowman 1989; Hart 1990)...

    Krista L. McGuireDonald, et al. Slowed decomposition is biotically mediated in an ectomycorrhizal, tro...

    • ... It is still too early to determine which areas of this equatorial band have the most diverse tree communities at the 1 ha scale. To date, Yasuní and forests within 200 kilometers of Yasuní boast the fifth, sixth, and seventh most diverse 1 ha tree plots of the more than one hundred established in this equatorial band (Cuyabeno = 307 spp. ...

    Margot S. Bass, et al. Global Conservation Significance of Ecuador's Yasuní National Park

    • ...Multi-species genera have been reported in many tropical forests, for example, on Mt. Kinabalu (Aiba and Kitayama 1999), in the Amazon (Valencia et al. 1994) and in Costa Rica (Nadkarni et al. 1995)...
    • ...Coexistence of congeneric species in the sacred grove indicates differences in flowering phenologies, pollination and dispersal agents of the species (Valencia et al. 1994)...

    Selvamony Sukumaran, et al. A floristic study on miniature sacred forests at Agastheeshwaram, sout...

    • ...However, during the last two decades shrubs, herbs and climbers are progressively being taking into consideration during biodiversity assessment, forest dynamic and ecological studies (Gentry and Dodson 1987; Poulsen and Balslev 1991; Valencia et al. 1994; Balslev et al. 1998; Condit et al. 2000)...
    • ...These results correspond to some extent to the general trend of tree and shrub species densities recorded in other species-rich Neotropical rain forests (Gentry 1988a, b; Valencia et al. 1994; Duivenvoorden and Lips 1995; Condit et al. 2000; ter Steege 2000)...

    M. G. P. Tchouto, et al. Diversity Patterns in the Flora of the Campo-Ma’an Rain Forest, Camero...

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