Pollination systems of trees in Kakachi, a mid-elevation wet evergreen forest in Western Ghats, India

2003 ◽  
Vol 90 (4) ◽  
pp. 650-657 ◽  
Author(s):  
M. S. Devy ◽  
P. Davidar
Keyword(s):  
Western Ghats ◽  
Evergreen Forest ◽  
Pollination Systems

scholarly journals Importance Of Small Diameter Woody Plants And Treelet Species In Tropical Wet Evergreen Forest Of Southern Western Ghats, India

2022 ◽  
Author(s):  
K. A Sreejith ◽  
M. S Sanil ◽  
T. S Prasad ◽  
M. P Prejith ◽  
V. B Sreekumar ◽  
...  
Keyword(s):  
Tropical Forests ◽  
Plant Species ◽  
Western Ghats ◽  
Small Diameter ◽  
Basal Area ◽  
Evergreen Forest ◽  
Above Ground Biomass ◽  
Forest Inventories ◽  
Southern Western Ghats ◽  
Diameter Classes

Tropical forests have long been accepted for their productivity and ecosystem services on account of their high diversity and stand structural attributes. In spite of their significance, tropical forests, and especially those of Asia, remain understudied. Until recently, most forest inventories in Asia have concentrated on trees 10 cm in diameter. Floristic composition, plant species diversity, above-ground biomass, basal area, and diversity were investigated across different life forms and two-diameter classes in a large-scale 10-ha plot, in the undisturbed tropical seasonal rain forest of Southern Western Ghats, Kerala, India. The regeneration pattern of the study area was examined by evaluating fisher's alpha and IVI (Important Value Index) across three layers of vegetation (seedling, sapling, and tree). Within the plot, we recorded 25,390 woody plant species ≥1 cm dbh from 45 families, 91 genera, and 106 species. Plant density was 2539 woody individuals per hectare, with a basal area of 47.72 m2/ha and above-ground biomass of 421.77 Mg/ha. By basal area, density, and frequency, the Rubiaceae, Sapotaceae, and Malvaceae families were the most important. Small-diameter trees (1 cm ≤ dbh ≤10 cm) were found to be 78 percent of the total tree population, 20.2 percent of the basal area, and 1.4 percent of the aboveground biomass. They also possessed 6 percent more diversity at the family level, 10% more diversity at the genus level, and 12% more diversity at the species level than woody individuals under 10 cm dbh. Woody individuals of treelets life form and small-diameter classes were much more diverse and dense than the other groups, indicating that results based only on larger canopy trees and larger diameter class maybe not be an appropriate representation of the diversity status of a particular tropical forest type. The lower density of individuals in the initial girth class indicates the vulnerability of the forest system to anthropogenic, natural disturbance and a changing climate. Reduce the minimum diameter limit down to 1 cm, in contrast to 10 cm limit used in most of the evergreen forest inventories, revealed a high density and diversity in the lower stories.

scholarly journals Distribution and composition of butterfly species along the latitudinal and habitat gradients of the Western Ghats of India

Check List ◽  
2012 ◽  
Vol 8 (6) ◽  
pp. 1197 ◽  
Author(s):  
Anand Padhye ◽  
Sheetal Shelke ◽  
Neelesh Dahanukar
Keyword(s):  
Western Ghats ◽  
Literature Survey ◽  
Evergreen Forest ◽  
Butterfly Species ◽  
Number Of Species ◽  
Habitat Gradients ◽  
Western Ghats Of India ◽  
Southern Western Ghats ◽  
The Western Ghats ◽  
Forest Habitats

Distribution of butterfly species along the latitudinal and habitat gradients of the Western Ghats was studied. The Western Ghats was divided into 14 latitude zones and the species diversity in each latitude zone, along with habitats of their occurrence, were studied using the data from literature survey for the entire Western Ghats as well as data from personal observations in the areas between 14°N to 20°N latitudes. Out of 334 species recorded from the Western Ghats, 58 species were found in all latitudinal zones, while 5 species were reported in only one latitudinal zone. Further, southern Western Ghats consisted of more number of species and more number of genera as compared to northern Western Ghats. Latitudinal zones between 10°N to 12°N had most of the Western Ghats endemic species. Habitat wise distribution of species revealed three significant clusters grossly separated by the level of human disturbance. Evergreen forest habitats supported maximum number of species endemic to the Western Ghats.

scholarly journals Evaluation of Phytochemical Constituents of Indian Medicinal Plant Hydnocarpus alpina WIGHT.

2013 ◽  
Vol 1 (03) ◽  
pp. 23-28 ◽  
Author(s):  
M. Dhanasekaran ◽  
S. Karuppusamy ◽  
M. Annadurai ◽  
K. M. Rajasekaran
Keyword(s):  
Medicinal Plant ◽  
Western Ghats ◽  
Chemical Constituents ◽  
Evergreen Forest ◽  
Endemic Plant ◽  
Indian Medicinal Plant ◽  
Western Ghats Of India ◽  
Medicinal Properties ◽  
Phytochemical Constituents ◽  
Significant Chemical

Hydnocarpus alpina WIGHT. is a evergreen forest plant. It is an endemic plant to western ghats of India. Several local names are available based on distribution among the state in india that is Torathi (kanada), Maravetti (Malayalam), attuchankalai (tamil), kastel (hindi). This tree has very appreciated value in the aspect of medicine. It has anti-larvicidal, anti-feedant, anti-microbial and etc. It has the medicinal properties due to the presence of its significant chemical constituents. In this paper revealed that the IR spectrum and chemical constituents which are present in different solvents (chloroform, pet.ether, ethanol, water).

Structure and floristic composition of a tropical evergreen forest in south-west India

1996 ◽  
Vol 12 (2) ◽  
pp. 191-214 ◽  
Author(s):  
Jean-Pierre Pascal ◽  
Raphael Pelissier
Keyword(s):  
Western Ghats ◽  
Basal Area ◽  
Floristic Composition ◽  
Evergreen Forest ◽  
Systematic Sampling ◽  
Importance Value Index ◽  
Importance Value ◽  
Tropical Evergreen Forest ◽  
Western Ghats Of India ◽  
The Western Ghats

ABSTRACTA permanent plot of 28 ha was established in a dense wet evergreen forest in the Western Ghats of India to study the functioning of the ecosystem. Since April 1990, 1981 trees of ≥30 cm gbh have been enumerated in a systematic sampling of five strips totalling 3.12 ha. This paper describes the main structural and floristic characteristics of the plot.The density (635 trees ≥30 cm gbh per hectare) and basal area (39.7 m2 ha−1) are high. Despite the high diversity (Simpson's D = 0.92 and Shannon's H' = 4.56), four species are distinctly, dominant in terms of an importance value index (relative density + relative basal area). Each of these four species occupies a different layer in the ecosystem: Humboldtia brunonis Wall. (Fabaceae) dominates the undergrowth, Myristica dactyloïdes Gaertn. (Myristicaceae) the intermediate strata, Valeria indica L. (Dipterocarpaceae) the higher canopy level and Dipterocarpus indicus Bedd. (Dipterocarpaceae) the emergents. This pronounced species hierarchy is one of the most important characteristics of the evergreen forests of the Western Ghats. The two dipterocarps account for 20.1% of the total number of trees and contribute 40.9% to the total basal area. This formation can, therefore, be considered as the westernmost lowland dipterocarp forest of Asia.Analysis of the spatial variations in the floristic composition and in the structure of the main species populations shows that two kinds of mature phases can be identified: where the topography is raised and gently sloping, the vertical structure of the stand is discontinuous, with Dipterocarpus indicus and Vateria indica forming an emergent layer above a dense undergrowth; on slopes, the stand is lower, vertically continuous and saturated with Valeria indica and Myristica dactyloïdes. The link between the structure of the stand and dynamic processes is discussed.

Bryocrumia Malabarica Spec. Nova (Bryophyta, Hypnaceae), A Second Species of the Genus from the Western Ghats of India

2021 ◽  
Vol 63 (1-2) ◽  
pp. 165-170
Author(s):  
C. N. Manju ◽  
B. Prajitha ◽  
R. Prakashkumar ◽  
W. Z. Ma
Keyword(s):  
New Species ◽  
Western Ghats ◽  
Evergreen Forest ◽  
Stream Channel ◽  
Peninsular India ◽  
External Appearance ◽  
Western Ghats Of India ◽  
Central Strand ◽  
The Western Ghats ◽  
A New Species

A new species similar to Bryocrumia vivicolor, the only known species in the genus Bryocrumia, is described as Bryocrumia malabarica spec. nova from the Malabar Wildlife Sanctuary in the Western Ghats of Kerala in Peninsular India. It resembles Homalia in external appearance and was collected in a rheophytic habitat along a stream channel in the evergreen forest. The new species is characterised by closely arranged leaves with distinct tricostate, ovate-rounded to truncate leaves, upper margin of leaf rounded with fine serrations and an inconspicuous central strand in stem cross section.

A new Helluodes Westwood species from Western Ghats with notes on habitat, distribution and phylogenetic relationships of genera Helluodes Westwood and Physocrotaphus Parry of the tribe Physocrotaphini Chaudoir (Insecta: Coleoptera: Carabidae: Anthiinae)

Zootaxa ◽  
2008 ◽  
Vol 1745 (1) ◽  
pp. 30 ◽  
Author(s):  
THOMAS K. SABU ◽  
PRABHAKAR ABHITHA ◽  
DANYANG ZHAO
Keyword(s):  
Sri Lanka ◽  
Phylogenetic Relationships ◽  
Western Ghats ◽  
Hot Spot ◽  
Indian Plate ◽  
Evergreen Forest ◽  
Sexually Dimorphic ◽  
Southwest India ◽  
Southwest Region ◽  
The Western Ghats

Description of Helluodes devagiriensis, n.sp. from western slopes of the Western Ghats, a global biodiversity hot spot in southwest India, is provided along with redescriptions of all species of Helluodes Westwood and Physocrotaphus Parry (H. taprobanae Westwood, H. westwoodi Chaudoir, Physocrotaphus ceylonicus Parry), keys to the genera of tribe Physocrotaphini and the species of genus Helluodes, notes on a curious sexually dimorphic character of species in the tribe and on termitophilous and geophilous habits of genus Helluodes, a discussion of the geographic distribution and phylogenetic relationships of the genera, and supportive evidence for the divergence of Physocrotaphini Chaudoir from Zuphiini Bonelli. Based on distributional patterns and phylogenetic relationships, (1) origin of the tribe in the southwest region of the Greater Indian Plate is hypothesized with Helluodes as basal stock; (2) Helluodes is endemic to the Western GhatsSri Lanka global hot spot of biodiversity; (3) Physocrotaphus is endemic to the globally outstanding montane evergreen forest ecoregion of Sri Lanka; (4) Pogonoglossus Chaudoir is a derivative of the Helluodes ancestral stock that dispersed into southeast Asia and beyond before Deccan trap formation; and (5) Physocrotaphus is a later derivative of the Helluodes stock after the separation of Sri Lanka from the Indian mainland.

scholarly journals Endophytic Fungal Diversity in Medicinal Plants of Western Ghats, India

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Monnanda Somaiah Nalini ◽  
Ningaraju Sunayana ◽  
Harischandra Sripathy Prakash
Keyword(s):  
Host Specificity ◽  
Western Ghats ◽  
Forest Type ◽  
Fungal Endophytes ◽  
Diversity Indices ◽  
Evergreen Forest ◽  
Healthy Plant ◽  
Natural Habitats ◽  
Plant Parts ◽  
Ethnobotanical Uses

Endophytes constitute an important component of microbial diversity, and in the present investigation, seven plant species with rich ethnobotanical uses representing six families were analyzed for the presence of endophytic fungi from their natural habitats during monsoon (May/June) and winter (November/December) seasons of 2007. Fungal endophytes were isolated from healthy plant parts such as stem, root, rhizome, and inflorescence employing standard isolation methods. One thousand five hundred and twenty-nine fungal isolates were obtained from 5200 fragments. Stem fragments harbored more endophytes (80.37%) than roots (19.22%). 31 fungal taxa comprised of coelomycetes (65%), hyphomycetes (32%), and ascomycetes (3%). Fusarium, Acremonium, Colletotrichum, Chaetomium, Myrothecium, Phomopsis, and Pestalotiopsis spp. were commonly isolated. Diversity indices differed significantly between the seasons (P<0.001). Species richness was greater for monsoon isolations than winter. Host specificity was observed for few fungal endophytes. UPGMA cluster analysis grouped the endophytes into distinct clusters on the basis of genetic distance. This study is the first report on the diversity and host-specificity of endophytic fungal taxa were from the semi evergreen forest type in Talacauvery subcluster of Western Ghats.

Sign in / Sign up

Export Citation Format

Share Document