scholarly journals Assessment of Plant Biodiversity at 3 Different Elevation of Protected Forest of Subtropical Pine Forest of Meghalaya

Author(s):  
Damonmi E. Dkhar Afaq Majid Wani

The study and survey which was carried out to identify and assess diversity of plant species of sub tropical pine forest of Meghalaya was conducted during 2020-2021 at three different elevation stands located at 982 m (low-elevation stand), 1485 m (mid-elevation stand) and at 1816 m (high-elevation stand). Pinus kesiya was found to be the most dominant from all the three stand. A total of 34species of trees belonging to 19 families were recorded which consisted a total number of 857 individuals of trees, 14 species of shrubs belonging to 10 families recorded a total number of 866 individuals, and an overall occurrence of 20 species of herbaceous species belonging to 13 families recorded a total number of 670 individuals. Elaeagnus conferta was maximum for IVI in both high and mid elevation stand while Lantana camara showed maximum IVI in the low elevation. The herbaceous species diversity, richness and evenness indices was highest in high elevation and lowest in the low elevation, while herbaceous species of dominance showed a reverse trend. Tree and shrub species of the three elevation stand were quite similar in the mid and low elevation stand. The diversity richness of indigenous forest shows considerable variation in occurrence of species between different altitudes. Most of the species in the study area have medicinal value and socio-economic importance. Therefore, there is a need for necessary action towards sustainability of forest and conservation of species at large.

Phytotaxa ◽  
2018 ◽  
Vol 349 (1) ◽  
pp. 73
Author(s):  
MENG ZHOU ◽  
FANG WU

A new species, Onnia kesiya, is described from South Vietnam on the basis of morphological characteristics and molecular phylogenetic evidence. It is characterized by distinct lateral stipe, relatively thin and duplex context, hooked hymenial setae, widest basidiospores among Onnia species, and grows on Pinus kesiya in tropical pine forest. Detailed description with a photo and illustration is provided for the new species, and its relationships with similar species are discussed.


1955 ◽  
Vol 31 (2) ◽  
pp. 154-161 ◽  
Author(s):  
J. Lynton Martin

The origin of the species on a burned-over area in southwestern Nova Scotia was determined by means of covered plots, and the early stages of succession were followed closely for two years. All of the herbaceous and shrub species which appeared on the area during the first two years were survivors of the fire. Bracken fern showed unquestionable dominance the first year, but its position was severely contested by other herbaceous species and the heath plants during the second year. Seedlings of grey birch and large-toothed aspen appeared the second year and were restricted to patches of bare mineral soil. Sucker growth of red oak, red maple and grey birch was rapid, but it was pruned heavily by deer feeding.


2021 ◽  
Vol 13 (7) ◽  
pp. 3950
Author(s):  
Juan Manuel Mancilla-Leytón ◽  
Rocío Fernández-Alés ◽  
Ángel Martín Vicente

We investigated the relationship between feeding selection by goats and changes in plant species abundance in the shrubland of a pine forest in Doñana Natural Park along three years. The abundance of the shrub species was measured using the point-intercept method. Goat preferences for shrub species were determined through direct observation. Goats showed selective feeding, since their browsing behavior was not related to species abundance. Myrtus communis was the overall preferred species (almost half of the bites belonged to this species, despite its low abundance) throughout the monitored years and seasons. Half of the species were selected some years while discarded others; two species were never grazed (Daphne gnidium and Thymus mastichina) and nine others were always ingested below their abundance. Within a year, species were consumed in certain seasons but not in others. The detected changes in species abundance were not related to the feeding preferences of the goats. The influence that grazing selectivity exerts on vegetation composition and abundance has long been recognized, but our study suggests that the mechanical effect of grazing herbivores on vegetation (pawing, scratching, and lying) may portrait a more important role than attributed to date.


Author(s):  
Leila Leiili Moradipour ◽  
Hasan Pourbabaei ◽  
Ahmad Hatami

Identifying flora of each region is fundamental for accomplishing other pure and applied researches in biology. Especially, in the ecological conditions of protected area of Male Gale. Data were collected in 96 sampling plots using systematic­_ random method. The size of sampling plot was 20 m × 50 m for the tree and shrub species, and 8 m × 8 m for herbaceous species. In this study area, 162 species, 122 genera and 43 families were identified. The largest families were Asteraceae (26 species) and Fabaceae (25 species). The frequency of Asteraceae may be due to grazing in some areas of the region. The life form spectrum includes: Hemichryptophytes (14/01 %), Therophytes (65/4 %), Cryptophytes (76/9 %), Chamaephytes (7.1 %) and Phanerophytes (5.8 %). The abundance of Therophytes and Asteraceae family is refered to destruction of forests in the study area. The highest value of the SIV tree and shrub species layer belong to Quercus brantii species and ZIziphus Mummularia. The highest value of the FIV herbaceous layer belong to Asteraceae family. The Species Important Value (SIV) of vegetation cover indicated that tree, shrubs species and herbaceous species had geometric distribution, broken stick model and lognormal distribution in this area.


2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Getachew Amare Kefelegn ◽  
Bizuayehu Desta

Ximenia americana is one of the most valuable wild edible plants in the world. In different countries, it is utilized as food, medicine, an essential oil source, and the industrial component to other products. In Ethiopia, it was one of the most known and very important plants for a long period of time. It was utilized as food, a medicinal plant, and animal feed. It was also one of the most economically important and culturally valuable plants. But nowadays, it is not adequately available in the country due to deforestation problem in the years. In addition, its economic importance, current status, and medicinal roles are not well documented and understood. As for research studies, it is concluded that unless a collective effort is taken, the existence of this plant is under severe threat and needs to have some measures. This review article is aimed at addressing the abovelined topics in detail and to pinpoint and explain the importance and status of Ximenia americana.


2012 ◽  
Vol 23 (6) ◽  
pp. 1114-1125 ◽  
Author(s):  
Severin David Howard Irl ◽  
Manuel Jonas Steinbauer ◽  
Wolfgang Babel ◽  
Carl Beierkuhnlein ◽  
Gesche Blume-Werry ◽  
...  

Author(s):  
Mukhtar H. M. ◽  
Kalsi V.

Orchids are the largest and the most diverse group among the angiosperms. They are cultivated for beautiful flowers. They exhibit incredible range of diversity in size, shape and color of their flowers. These plants have been well known for their economic importance but less for their medicinal value. Many orchids have been used as drugs in Ayurveda for various ailments. The genus Vanda from this family includes a medicinal epiphytic plant Vanda roxburghii commonly called as Rasna which is a perennial orchid. The plant has been used traditionally for many ailments. The plant has been subjected to a number of biological activities and has given fruitful results. Vanda roxburghii has been found to be useful as aphrodisiac, antibacterial, antifungal, antiulcer, anticonvulsant, antioxidant agent. The plant has also been tested for hepatoprotective, anti-inflammatory, wound healing, antinociceptive, analgesic and antidiabetic activity. The present communication deals with the work done on biological activities of this important medicinal plant.


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