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Open Preview See a Problem? Mechanisms of interaction between a leguminous shrub and its understorey in a semiarid environment.
Masud Rony rated it it was amazing Apr 25, The size of these wood vegetation island varies from 6 m to 12 m in diameter. Heather marked it as to-read Nov 20, Within the islands, the herbaceous community located in the center had greater diversity, greater height, and less density than at the edge. Warm arid and semiarid regions are characterized by high temperatures and low rainfall. Rana marked it as to-read Feb 03, Twenty-seven plots were installed in the center of the islands, 38 at the edge of the islands in a total of 38 islands and 35 in the open spaces.
Felliani Novianti added it Mar 02, The herbaceous flora was represented by 59 species, 51 genera, and 26 families. Although speculative, it is also possible that in the event of climate anomalies e.
Annals of Botany, Exeter, v. Amna Latif marked it as to-read Sep 06, Katelyn Thornton rated it really liked it Oct 28, The mean density was lower in the open spaces than on the islands.
In the latter cases, the stalks of the herbs were not typically visible above soil level, but when they were visible, they were small, decumbent and rhizomatous. Bauru Canal 6, The hypothesis vegeral this study is that islands of perennial vegetation in an area vegeatl caatinga harbor, a greater richness, diversity and density of herbaceous plants, and that individuals reach a greater height and diameter than in open spaces. Consequently, the distribution of the number of individuals has become more uniform, resulting in a greater diversity and taller individuals in the center.
Clare rated it really liked it Aug 11, Gustavo Engenheiro added it May 20, Within the islands, the reduction in the availability of light from the edge to the center causes a domino effect: The analysis was conducted with the BioEstat 5.
As a result, the soil below the shrub vegegal is richer in nutrients e. Amanita rated vegehal it was amazing Jul 20, Column numbers of the areas in the center, edge, and open spaces indicates the abundance of the species.
Debra rated it really liked it Nov 27, We believe that the woody species that form the islands facilitate the establishment of herbaceous species in areas of caatinga vegetation installed on sedimentary basins, with perennial vegetation island physiognomy embedded in a matrix of bare soil. Prentice Hall, Upper Saddle River,p.
Lists with This Book. Christopher Tyrrell added it Oct 26, Seasonally dry Tropical Forests. Below the canopy, there is a larger amount of organic material and high rate of mineralization.
: Jessica Gurevitch: Books
gurevihch Na rated it liked it Dec 22, This is an open-access article distributed under the terms of the Creative Commons Attribution License. The area has 2 ha and is on private property; the landowners reported that the area selected for this study had not been subject to agricultural or extensive livestock influences for at least 20 years.
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These attributes of the islands of the studied caatinga ecolotia may have contributed to the greater richness and diversity around them. This situation is a good scenario for verifying whether the communities of woody and herbaceous plants growing on the sandy eecologia of sedimentary basins exhibit competition or facilitation interactions.
The mean richness of the open spaces was significantly lower than the mean richness of the islands. In the islands, the accumulation of the leaf-litter is higher than in open spaces MORO et al.