scholarly journals Angiosperms, tree species in tropical forests of southern Eastern Ghats, Tamil Nadu, India

Check List ◽  
2009 ◽  
Vol 5 (3) ◽  
pp. 542 ◽  
Author(s):  
Lingassamy Arul Pragasan ◽  
Narayanaswamy Parthasarathy

We provide a list of tree species enumerated from a total of 60 ha area sampled in the tropical forests of southern Eastern Ghats, Tamil Nadu, India. A total of 272 tree species (Ā 30 cm girth at breast height) representing 181 genera and 62 families were recorded. Euphorbiaceae with 25 species was the most speciose family, followed by Moraceae (17 species), Rubiaceae (17), Rutaceae (14) and Lauraceae (12). At the generic level, Ficus dominated with 12 species, followed by Diospyros (9), Acacia (6), Terminalia (6) and Grewia (5). Anthropogenic activities such as hill cultivation, construction of dams, roads, buildings, etc. affect the already fragmented southern Eastern Ghats, and underline the need for effective conservation measures. 

2017 ◽  
Vol 24 (4) ◽  
pp. 209-216
Author(s):  
S. Salamma ◽  
A. Narayanaswamy ◽  
M. Naik ◽  
D. Veeranjaneyulu ◽  
M.V. Babu ◽  
...  

The population of Croton scabiosus, an endemic tree species of southern Eastern Ghats of Andhra Pradesh, India was assessed through random sampling in 15 localities spread over 8 locations. In sampled 37.5 h area, a total of 8737 mature individuals of Croton scabiosus was recorded. Of the 8 locations, Sanipaya sub population was found stable and considered elite owing to the maximum number of mature individuals, girth and height. In spite of good adult population, low number of seedlings and saplings of the species across the native terrain indicates its poor germination and recruitment warranting both in situ and ex situ conservation measures.


Check List ◽  
2009 ◽  
Vol 5 (1) ◽  
pp. 092 ◽  
Author(s):  
Chellam Muthumperumal ◽  
Narayanaswamy Parthasarathy

We provide a check list of angiosperm climbing plant species, along with their climbing modes, enumerated from a total of one hundred and fifty grids in tropical forests of southern Eastern Ghats, peninsular India. The Eastern Ghats constitute an important biodiversity area in India and have been studied earlier mainly for the floristics, and that too confined to a few prioritized sites. Lianas, the woody vines contribute substantially to the diversity and structure of most tropical forests. Yet, little is known about the importance of habitat specialization in maintaining tropical liana diversity. A genera and 40 families are included in this enumeration.


2020 ◽  
pp. 218-227
Author(s):  
P V Priya ◽  
G S Rekha ◽  
A Saravana Ganthi

District Science Centre campus is not only a green lung for Tirunelveli City, but also aimed to create awareness about the biodiversity among the public. District Science Centre is committed towards developing a green campus, and established a Garden in achieving the commitment. It is the centre for higher learning, being both recreational and educative role; it will continually host a human population consisting of students and common public. The present study focused on tree diversity and their abundance in District Science Centre, Tirunelveli, Tamil Nadu, India. An extensive floristic survey was conducted in 2019. The results of tree diversity in District Science Centre campus showed 80 tree species. Among 80 species confined in 34 families and 68 genera, Polyalthia longofolia was the most dominant and frequent species in the study area. A total of 75 tree species represented by dicot and belong to 63 genera and 32 families were recorded. Out of the identified species, 5 tree species are monocot and belongs to 5 genera and 2 families. In the present study 14 families reported with only one species, 13 families represented by more than 2 species. During the study several anthropogenic activities exploited the tree population in the campus. Still Campus area is was still quite barren, so the entire campus should be lush greenery by new initiative on garden development.


Author(s):  
Elly Josephat Ligate ◽  
Can Chen ◽  
Chengzhen Wu

Aim: Estimation of carbon in the forests located in the coast of tropics is needed to support conservation and forest monitoring strategies. This study aimed at quantifying carbon stocks in the regenerating tree species of intact forest (IFS), disturbed by agriculture (ADS) and by livestock grazing sites (LDS) to understand the importance of coastal trees in carbon stocking as part of mitigating climate change impacts. Methodology: Thirty-three independent measurements of tree carbon stocks were carried out on 33 tree families found in the coastal zone of Tanzania. The vegetation was inventoried by means of a floristic survey of the woody component across intact, crop agriculture and livestock disturbed land use sites. The biomass was then estimated by employing the existing allometric equations for tropical forests. Thereafter, the above ground stored carbon was quantified on the sampled tree species found in each land uses. Results: The results showed that there were significant variations (p ≤ .05) of carbon stock values across species and land uses. The average carbon (Kg/ha) stored in the regenerated adult trees was 1200 in IFS, 600 in ADS, 400 in LDS. Saplings had 0.43 in LDS, 0.07 in ADS and 0.01 in IFS. Indeed, seedlings had the average of 0.41 in IFS, 0.22 in ADS and 0.05 in LDS. Conclusion: These findings show that crop-agriculture highly affects the regeneration potential of trees, biomass accumulation and carbon stock than livestock grazing. To restore carbon storage potential of coastal tropical forests, crop-agriculture must be discouraged, while livestock grazing can be integrated in forest management. Indeed, further studies are required to gauge the integration levels of any anthropogenic activities, so that the natural capacity of coastal tropical forests to regenerate and stock carbon is not comprised further.


2014 ◽  
Vol 6 (4) ◽  
pp. 448-453 ◽  
Author(s):  
Dumpa PREMAVANI ◽  
Maradana TARAKESWARA NAIDU ◽  
Malleboyina VENKAIAH

The tree species diversity and population structure were studied in four stands of the tropical forests in the north-central Eastern Ghats, based on tree inventories conducted on four 1-ha plots. In the four independent plots, two 5 x 1000 m transects were established and all trees with ≥ 15 cm girth at breast height were enumerated. The density, frequency, basal area and IVI along with diversity indices viz. Shannon index, species richness, equitability and species dominance were computed to see the variation in tree community. A total of 92 species representing 73 genera under 40 families of angiosperms were recorded. Tree species richness was as low as 34 species per hectare plot in Geddapalli to as high as 48 species in Koruturu. Tree density ranged from 360 stems per hectare in plot Geddapalli to 526 stems in plot Chintapalli and that of total basal area from 16.31 m2 ha-1 in Koruturu to 31.15 m2 ha-1 in Chintapalli. The number of species and stems decreased from the smaller to the largest girth classes. The tree inventories of the study area when compared to those of the other tropical forests showed great differences in density and basal area. This may probably be due to differences in geography and annual rainfall patterns. The information on tree species structure and function can provide baseline information for conservation of the biodiversity.


2014 ◽  
Vol 6 (1) ◽  
pp. 59-65 ◽  
Author(s):  
Maradana TARAKESWARA NAIDU ◽  
Owk ANIEL KUMAR ◽  
Malleboyina VENKAIAH

Lianas are important in forest ecosystem and strongly influence the forest dynamics and diversity. Lianas are common in the tropical moist deciduous and rain forests, which are competing with other forest trees. Little information is known on the habitat specialization in tropical lianas diversity and the root causes for variation among forests in liana species composition. A total of 170 liana species (≥ 1.5 cm girth at breast height) representing 109 genera and 43 families were reported in 5×5 m quadrate samples along with their climbing modes in the tropical forests of northern Eastern Ghats of Andhra Pradesh, India. A total of 210 grids were sampled in study area and reported that Convolvulaceae was the dominant family with 23 species followed by Papilionaceae, 22 species and Asclepiadaceae, 19 species and Ipomoea was the largest genera. Woody lianas were dominated by 128 species and these are classified into six climbing modes consisting in stem climbers (53.5%) that were the most predominant followed by stragglersunarmed (14.7%), stragglers armed and tendril climbers (13.5% each), root climbers (2.9%) and hook climbers (1.8%). The most dominant liana species in the northern Eastern Ghats were Acacia sinuata and Bauhinia vahlii. The results of this investigation suggests that better management and protection is an important for in situ conservation of liana diversity and involving local people is emphasized.


Author(s):  
G. PRABAKARAN, D. ANANDHA KUMAR ◽  
R. PUGALVENDHAN, M. MURALI

Flora and fauna diversities are two facts components of biodiversity which covers the variety and variability of species. A survey was conducted to study the rare plants of chitteri hills, Tamil Nadu, India. 96 Plants Belonging to 48 Family, 90 Genus and 96 species were Documented Plants totally were under thorough investigation. Of these monocots are represented by 7 species belonging to 7 genera and 4 families, while dicot contributed by 87 species belonging to 82 genera and 39 families, Ferns 2 families and 2 genera, Fungi 1 family and 1 Genera. Plant species were recorded and identified during the survey. The results show that the habitat of plants belongs to herbs, shrubs and tree species. But, we have observed only minimum tree species. Of these monocots are represented by 7 species belonging to 7 genera and 4 families, while dicots contributed by 87 species belonging to 82 genera and 39 families, Ferns 2 families and 2 genera, Fungi 1 family and 1 Genera. The study decipts that Chitteri Hills have different variety of plants distributed all over the mountain.


2020 ◽  
Vol 24 (10) ◽  
pp. 1815-1819
Author(s):  
N.O. Haastrup ◽  
I Agboje ◽  
M.O. Lawal ◽  
B.O. Fadimu ◽  
O.A. Sangotoyinbo ◽  
...  

The tree composition of Onigambari Forest Reserve in Oyo State was evaluated by laying out a plot size of 50 x 50 m2 resulting to four plots per hectare. 104 and 93 stems per hectare were recorded. A total of 197 tree stands were encountered in the two compartments studied with family Sterculiaceae with species Cola gigantean, Cola millenii, Sterculia africana, Sterculia oblonga, Sterculia tragacantha, Triplochiton scleroxylon, Pterogota macrocarpa and Nesogordonia papaverifera.as the most abundant having 34 stands, followed by the family Papilionoideae with species Baphia nitida with 20 stands as the most abundance species. About thirty-nine percent of the tree species encountered were wildlings having a diameter at breast height of ≤ 10 cm. Less than one percent (0.50%) of the trees were of merchantable size. This could be a thing of concern and it calls for adequate resourceful and sustainable management techniques. Habits in Onigambari Forest Reserve are presented in Table 1. A total of forty-three (43) species of trees distributed into twenty (20) families were encountered. Family Sterculiaceae and Fabaceae was the richest with eight (8) species each followed by family Euphobiaceae with (5) tree species. Based on their habit, these species were classified into 100% trees. Furthermore, it is of the importance that the forest reserves be protected from illegal/indiscriminate logging among other anthropogenic activities in order to allow it regenerate. Keywords: Abundance, merchantable, sustainable, resourceful


Sign in / Sign up

Export Citation Format

Share Document