scholarly journals Comparisons In floristic Composition and Plant Species Diversity amongst Granite Outcrops of the Mamabolo Mountain Bushveld, South Africa

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Masehela Tlou S ◽  
Potgieter Martin J ◽  
Veldtman Ruan
2021 ◽  
Vol 9 (1-2) ◽  
pp. 91-108
Author(s):  
Saiful Islam ◽  
Shayla Sharmin Shetu ◽  
Md Abdur Rahim ◽  
Saleh Ahammad Khan

This study has confirmed the occurrence of a total of 181 species of vascular plants under 133 genera and 51 families and estimates the plant species diversity in and around the brickfield areas of Savar-Dhamrai region of Dhaka district. Of these, six species were pteridophytes, 175 were Angiosperms, and 144 species were economically important. Five families, composed of six species, belonged to Pteridophyta, 40 families, consist of 128 species, to Magnoliopsida (dicotyledons) and six families, comprised of 47 species, to Liliopsida (monocotyledons). Total of 161 species were herbs, 14 were shrubs, and only six were trees. Asteraceae with 14 species and Poaceae with 24 species were the largest family in Magnoliopsida and Liliopsida, respectively. Amaranthus L., Persicaria (L.) Mill., Solanum L. and Lindernia All. with four species each were appeared as the best representative genera in Mangoliopsida, while Cyperus L. with five species in Liliopsida. The species composition and diversity of abandoned brickfields were found to be higher than those of functional brickfields. A total of 42 (23.20%) species were common in both abandoned and functional brickfields of this region. Species composition in the abandoned brickfields of Savar and Dhamrai was mostly similar (64.15%). This study suggests to control and monitor the brickfields under the respective authorities to favor the formation and regeneration of natural vegetation in their neighboring areas. Jahangirnagar University J. Biol. Sci. 9(1 & 2): 91-108, 2020 (June & December)


Vegetatio ◽  
1980 ◽  
Vol 43 (1-2) ◽  
pp. 43-47 ◽  
Author(s):  
B. M. Campbell ◽  
F. Meulen

2020 ◽  
Vol 7 (4) ◽  
pp. 192025 ◽  
Author(s):  
Susannah C. Graham ◽  
Alan S. Barrett ◽  
Leslie R. Brown

Mesic Highveld Grassland is important for biodiversity conservation, but is threatened by bush densification from Seriphium plumosum . This indigenous densifier spreads rapidly and outcompetes other herbaceous species, changing the species composition and structure of grasslands. This study looks at three different densities of S. plumosum and how these affect grassland biodiversity within Telperion, Mpumalanga, South Africa. An intermediate density of S. plumosum (1500 individuals (ind) ha −1 ) resulted in the highest plant species diversity ( H = 2.26), a low density (24 ind ha −1 ) was moderately diverse ( H = 1.96) and a high density (9500 ind ha −1 ) was least diverse ( H = 1.78). There were differences between the three densities in terms of plant species diversity, with the intermediate density being significantly more diverse ( p < 0.01) than both the low and high densities. Findings indicate that there was a significant difference between the sites in terms of ecological successional status ( p < 0.01). The presence of S. plumosum at low densities can be considered an integral part of the environment. It is important that in areas where S. plumosum occurs, it should be monitored. If this species is not in balance within its environment and it starts becoming dense, it will negatively affect the biodiversity, species composition and structure of the habitat.


Science ◽  
2014 ◽  
Vol 345 (6204) ◽  
pp. 1574-1574
Author(s):  
A. M. Sugden

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