scholarly journals Pogostemon hirsutus Oil, Rich in Abietane Diterpenes

2013 ◽  
Vol 8 (12) ◽  
pp. 1934578X1300801
Author(s):  
Ramar Murugan ◽  
Gopal Rao Mallavarapu ◽  
Veerappan Sudha ◽  
Pemaiah Brindha

Volatile oil extracted from the leaves of Pogostemon hirsutus Benth., a rare species from Anamalai hills of the Western Ghats of Tamil Nadu, India was analyzed by GC-FID and GC-MS. Fifty-four compounds amounting to 90.8% of the oil were identified. The oil was rich in monoterpenes and diterpenes. The major components of the oil were α-pinene (11.5%), sabinene (8.5%), β-pinene (5.2%), abietatriene (16.3%), dehydroabietal (3.5%) and dehydroabietol (21.0%). Abietane diterpenes are reported for the first time in the genus Pogostemon of Lamiaceae with six abietanes representing 42.6% of the oil.

2019 ◽  
Vol 11 (7) ◽  
pp. 13931-13936
Author(s):  
Amit Katewa ◽  
Prakash Chand Pathania

Ten species of the superfamily Tineoidea were collected from different localities of the Western Ghats in the states of Goa, Gujarat, Maharashtra, Karnataka, Tamil Nadu and Kerala; of the genera Edosa Walker, Cimitra Walker, Monopis Hübner, Compsoctena Zeller, and Clania Walker are present. All the ten species are recorded for the first time from the Western Ghats.


2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Deepa K.M. ◽  
Manju C.N.

<p>Abstract<br />Clevea pusilla a rare liverwort of Cleveaceae is reported from the Western Ghats of Tamil Nadu after more than 50 years with its detailed<br />taxonomy and photographs.<br />Keywords. , Distribution, Marchantiophyta, Taxonomy, Clevea pusilla Western Ghats</p><p> </p><p><span>DOI: </span><a id="pub-id::doi" href="http://dx.doi.org/10.21756/cba.v1i1.10946">http://dx.doi.org/10.21756/cba.v1i1.10946</a></p>


2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Deepa K.M. ◽  
Manju C.N.

Clevea pusilla a rare liverwort of Cleveaceae is reported from the Western Ghats of Tamil Nadu after more than 50 years with its detailed taxonomy and photographs.


2019 ◽  
Vol 11 (1) ◽  
pp. 13175-13179
Author(s):  
Praveenraj Jayasimhan ◽  
Moulitharan Nallathambi ◽  
M. P. Goutham-Bharathi

 The Nilgiri Mystus Hemibagrus punctatus (Jerdon, 1849), a Critically Endangered catfish endemic to the Western Ghats of India, is recorded for the first time from Stanley Reservoir in Tamil Nadu, India.  An account of the morphometrics of this species, along with notes on its habitat and threats, is provided.


2020 ◽  
Vol 12 (11) ◽  
pp. 16502-16509
Author(s):  
Sandeep Das ◽  
K.P. Rajkumar ◽  
K.A. Sreejith ◽  
M. Royaltata ◽  
P.S. Easa

Abstract: The Resplendent Shrub Frog, Raorchestes resplendens Biju, Shouche, Dubois, Dutta, & Bossuyt, 2010 is a Critically Endangered species endemic to the Western Ghats and was considered to be restricted to a three-square kilometer patch atop Anamudi summit.  In this study, we report 36 new locations of the species from the Anamalai massif of the southern Western Ghats.  Niche-based prediction modelling suggests that the species is restricted to Anamalai massif.  The call description of this frog is also provided for the first time. The preferred microhabitat of the frog is Chrysopogon grass clumps in the marshy/swampy montane grassland ecosystem. Restricted to a small area with controlled burning management practiced in its habitat, R. resplendens needs immediate attention.


2018 ◽  
Vol 17 (1) ◽  
pp. 21
Author(s):  
Arun Kanagavel ◽  
Sethu Parvathy ◽  
Abhiijth P. Chundakatil ◽  
Neelesh Dahanukar ◽  
Benjamin Tapley

Distribution and habitat associations of the Critically Endangered frog Walkerana phrynoderma (Anura: Ranixalidae), with an assessment of potential threats, abundance, and morphology. Little is known about Walkerana phrynoderma, a frog endemic to the Anamalai Hills of the Western Ghats of India. Baseline information (i.e., distribution, threats, habitat characteristics, activity patterns, and relative abundance) is provided for this species, with the aim of improving our understanding of the status of the species in the wild. Visual-encounter, transect, and time-activity budget surveys were conducted in and around the Anamalai Hills of the Western Ghats. The frog skin was swabbed to determine the presence/absence of Batrachochytrium dendrobatidis, and habitat and environmental characteristics were recorded at sites where W. phrynoderma was found. These data were compared with those of sites apparently lacking this species that had suitable habitat. Walkerana phrynoderma is restricted to evergreen forests between 1300 and 1700 m a.s.l. in the Anamalai Tiger Reserve and at Munnar; thus, its range was extended from the state of Tamil Nadu to the adjoining state of Kerala. Pesticide runoff and human disturbance are the most severe threats to the species; B. dendrobatidis was not detected. This nocturnal anuran prefers forest edges and is associated with well-shaded forest foors in cool areas near freshwater streams. Walkerana phrynoderma is rarely encountered whereas its congener, W. leptodactyla, is more common. The impact of anthropogenic disturbances, especially waste disposal and development of tourism infrastructure, should be evaluated. The land that is owned by the Forest Department peripheral to the protected areas could be designated as eco-sensitive sites to prevent changes in land use that could have an adverse effect on W. phrynoderma.


2021 ◽  
Vol 13 (9) ◽  
pp. 19380-19382
Author(s):  
Yogesh Koli ◽  
Akshay Dalvi

Melanoneura bilineata Fraser, 1922 is reported for the first time from Maharashtra, India. Previously it was only known from the Kerala and Karnataka states.


2021 ◽  
Vol 13 (9) ◽  
pp. 19376-19379
Author(s):  
T.B. Suryanarayanan ◽  
C. Bijoy

The species, Mantispilla indica (Westwood, 1852) of the Mantispidae family is recorded for the first time from the Western Ghats as well as from Kerala state. Besides, the distribution of the species in India is mapped. 


2015 ◽  
Vol 2 (1) ◽  
pp. 56-62
Author(s):  
Abinaya G ◽  
Paulsamy S

Phytosociological study is the most essential in any community to know its structure and organization. The various qualitative characters obtained are used to determine the level of distribution, numerical strength and degree of dominance exhibited by the constituent species in the community. Thalictrum javanicum belongs to the family Ranunculaceae family, it is medium sized erect herb, found in the temperate Himalayas from Kasmir to Sikkim in Khasi hills, and Kodaikanal and Nilgiri hills of Western Ghats in Tamil Nadu, India. At global level, it is generally distributed in the hilly tracts of India, Srilanka, China and Java at the altitude of around 2400 m above msl. The present study was undertaken in Thottabetta , the Nilgiris by sampling using belt transects of 10x1000m size which further divided into 100 segments each which 10x10m size. The total number of species encountered in the study area is 45 which includes 5 grasses and 40 forbs. The quantitative ecological characters of the study species, T. javanicum is a detailed below: frequency 11%, abundance 3.82 individuals/m2, density 0.42 individuals/m2, basal cover 172.20/mm2/ m2, relative frequency 0.55% and relative density 0.08%, relative dominance 0.16%. Based on the ecological attributes it is determined that the species, T. javanicum is less perpetuated in the community studied. Hence, further studies on the determination of propagation strategies for population enhancement and conservationof wilds are suggested.


2016 ◽  
Vol 8 (7) ◽  
pp. 9042
Author(s):  
Poovoli Amina ◽  
K. Rajmohana ◽  
K. V. Bhavana

Speculitermes chadaensis Chatterjee & Thapa, 1964, a termite species under Termitidae family is reported for the first time from the Western Ghats.  A distribution map of the species is also provided.


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