scholarly journals Tree species richness and diversity of the seasonally dry forest in Central Depression of Chiapas

2010 ◽  
Vol 87 ◽  
pp. 89 ◽  
Author(s):  
Ana Guadalupe Rocha-Loredo ◽  
Neptalí Ramírez-Marcial ◽  
Mario González-Espinosa
Keyword(s):  
Species Richness ◽  
Tree Species ◽  
Dry Forest ◽  
Seasonally Dry ◽  
Species Richness And Diversity ◽  
Central Depression ◽  
Tree Species Richness ◽  
Seasonally Dry Forest

Commercial tree regeneration 6 years after high-intensity burns in a seasonally dry forest in Bolivia

2004 ◽  
Vol 34 (11) ◽  
pp. 2199-2207 ◽  
Author(s):  
Deborah Kennard
Keyword(s):  
Tree Species ◽  
High Intensity ◽  
Cost Effective ◽  
Tree Regeneration ◽  
Dry Forest ◽  
Burn Treatment ◽  
Tree Species Composition ◽  
Competing Vegetation ◽  
Seasonally Dry ◽  
Seasonally Dry Forest

The effects of three site-preparation treatments (high-intensity burn, low-intensity burn, and mechanical cleaning with machetes and chainsaws) on the regeneration of commercial tree species, composition and structure of competing vegetation, and soil chemical and structural properties were evaluated in a seasonally dry forest in southeast Bolivia. Six years after controlled burns, the high-intensity burn treatment had the both the highest density and the tallest individuals of shade-intolerant commercial tree species. Competing vegetation was also less dominant in the high-intensity burn treatment relative to other treatments. However, high-intensity burns were not beneficial for commercial tree species with shade-tolerant or intermediate regeneration. Soil analyses revealed that certain changes in soil texture and soil chemistry (e.g., Ca and Mg concentrations and cation exchange capacity) caused by high-intensity burns persisted 6 years after the fires. These findings confirm that this suite of shade-intolerant commercial species requires very intense disturbances for their regeneration. However, several ecological, economic, and social barriers currently preclude the management-scale application of prescribed fire in Bolivia. More research is needed on cost-effective treatments to improve regeneration.

A coupled phylogeographical and species distribution modelling approach recovers the demographical history of a Neotropical seasonally dry forest tree species

2012 ◽  
Vol 21 (23) ◽  
pp. 5845-5863 ◽  
Author(s):  
Rosane G. Collevatti ◽  
Levi Carina Terribile ◽  
Matheus S. Lima-Ribeiro ◽  
João C. Nabout ◽  
Guilherme de Oliveira ◽  
...  
Keyword(s):  
Species Distribution ◽  
Tree Species ◽  
Forest Tree ◽  
Species Distribution Modelling ◽  
Dry Forest ◽  
Distribution Modelling ◽  
Seasonally Dry ◽  
History Of ◽  
Seasonally Dry Forest ◽  
Modelling Approach

scholarly journals Tree species richness as the element of structure and diversity in mixed stands of beech and valuable broadleaves

2012 ◽  
pp. 157-172
Author(s):  
Branko Stajic ◽  
Milivoj Vuckovic
Keyword(s):  
Species Richness ◽  
Tree Species ◽  
Woody Species ◽  
Forest Stands ◽  
Expected Number ◽  
Mixed Stands ◽  
Species Richness And Diversity ◽  
Number Of Species ◽  
Tree Species Richness ◽  
Ecological Unit

In our forest science and forest operations, the tree species richness and diversity of woody species in forest stands are most often evaluated based on the total number of tree species, which is a methodologically partly inadequate approach. For this reason, the quantification and the evaluation of diversity of woody species in mixed forests of beech with valuable broadleaves in the area of the National Park ?Djerdap? were analyzed by five different indices of tree species richness: number of species (S index), two indices of the species richness (R1 and R2), expected number of species in the sample with equal numbers of trees (E(S84)), and expected number of species in the sample with equal areas (E(S0,25ha)). The results showed that the level of woody species diversity in forest stands depended on the applied index characterizing the tree species richness. It was concluded that the tree species richness and diversity were the highest in the stands of ecological unit B (E(S84)=8.6 species) and in the stands of ecological unit G (E(S0,25ha)=9.4 species), and they were the lowest in the stands of ecological unit V (E(S84)=5.8 species, E(S0,25ha)=5.5 species).

scholarly journals The impacts of human activities on tree species richness and diversity in Kakamega Forest, Western Kenya

2014 ◽  
Vol 6 (6) ◽  
pp. 428-435 ◽  
Author(s):  
Esther Vuyiya ◽  
Martha Konje ◽  
Harrison Tsingalia ◽  
Lenard Obiet ◽  
Charles Kigen ◽  
...  
Keyword(s):  
Species Richness ◽  
Tree Species ◽  
Human Activities ◽  
Western Kenya ◽  
Kakamega Forest ◽  
Species Richness And Diversity ◽  
Tree Species Richness

scholarly journals Tree species richness and diversity predicts the magnitude of urban heat island mitigation effects of greenspaces

2021 ◽  
Vol 770 ◽  
pp. 145211
Author(s):  
Xinjun Wang ◽  
Martin Dallimer ◽  
Catherine E. Scott ◽  
Weiting Shi ◽  
Jixi Gao
Keyword(s):  
Species Richness ◽  
Urban Heat Island ◽  
Tree Species ◽  
Heat Island ◽  
Species Richness And Diversity ◽  
Tree Species Richness ◽  
Urban Heat

The mechanisms explaining tree species richness and composition are convergent in a megadiverse hotspot

2019 ◽  
Vol 29 (3) ◽  
pp. 799-815
Author(s):  
Victor P. Zwiener ◽  
André A. Padial ◽  
Márcia C. M. Marques
Keyword(s):  
Species Richness ◽  
Tree Species ◽  
Tree Species Richness
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