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Vijayakumaran Nair, P.
- Checklist of Flora of Myristica Swamps - A Critically Endangered Fresh Water Ecosystem of Southern Western Ghats of Kerala, India
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1 Department of Zoology, Mar Thoma College, Tiruvalla, Kerala, IN
1 Department of Zoology, Mar Thoma College, Tiruvalla, Kerala, IN
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Indian Forester, Vol 140, No 6 (2014), Pagination: 608-616Abstract
Trees of Myristicaceae family are dominant hence these swamps are popularly known as 'Myristica' swamps. Members of other families such as Celestraceae, Diptereocarpaceae, Anacardiaceae, Xanthophyllaceae, Myrtaceae, etc. are a significant part of the swamp community in some of these swamps, but are less frequent. Ground vegetation consists mainly of Pandanus, Calamus, Ochalandra and members of Araceae, Acanthaceae, and Zingiberaceae family. Endemic and Endangered species such as Myristica fatua var.magnifica, Syzygium trvancoricum, Vateria indica are well represented. Sixty swamps in Southern Kerala were surveyed and mapped recently. A check list of the plant species of Myristica swamp forests of southern Kerala, India from over a period of five years is presented. 221 species of plants belonging to 88 families have been recorded from these swamp forests. Of the total plant species in Kerala, 5% have been recorded from the Myristica swamp forests of Kerala, the cumulative area of which is less than 0.01% of the land area of the State. 79 species of trees, 93 species of herbs/shrubs and 49 climbers constitute the vegetation. Eighteen of these plants are in the redlist and 49 plants are endemic.Keywords
Myristica Swamps, Flora, Biodiversity
- Species Abundance Distributions of Selected Communities in the Myristica Swamp forests of Southern Kerala
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Authors
Affiliations
1 Department of Zoology, St Thomas’ College, Thrissur 680 001, IN
2 Department of Tree Physiology, Kerala Forest Research Institute, Peechi, Thrissur 680 653, IN
3 Department of Wildlife, Kerala Forest Research Institute, Peechi, Thrissur 680 653, IN
4 Department of GIS & Remote Sensing, Kerala Forest Research Institute, Peechi, Thrissur 680 653, IN
1 Department of Zoology, St Thomas’ College, Thrissur 680 001, IN
2 Department of Tree Physiology, Kerala Forest Research Institute, Peechi, Thrissur 680 653, IN
3 Department of Wildlife, Kerala Forest Research Institute, Peechi, Thrissur 680 653, IN
4 Department of GIS & Remote Sensing, Kerala Forest Research Institute, Peechi, Thrissur 680 653, IN
Source
Current Science, Vol 107, No 3 (2014), Pagination: 447-453Abstract
The species abundance distribution (SAD) utilizes all the information gathered in a community and is the most complete mathematical description of the data. Myristica swamp forests are an endemic, highly fragmented ecosystem, naturally restricted due to systematic destruction and the special abiotic conditions required for their survival. Species diversity of amphibians, reptiles and trees in the Myristica swamp forests of southern Western Ghats in Kerala was documented using standard protocols for two years. Conventional species abundance distribution models could not be fitted into the datasets of this study. Graphical representations of the distribution of the dataset suggest that existence of multiple peaks on a log scale does not reject the universal hollow curve law on the arithmetic scale, but it will reject all SAD models producing unimodal curves. Various studies using SAD as a tool for community and ecosystem studies were reviewed and it was found that the presence of many species of intermediate abundance and decrease in rare species in our datasets could be an indication of natural distributions moving apart under disturbance and enrichment. Deconstruction and identification of resident and transient groups was done. We suggest that the Myristica swamps, which are situated in an area with high potential for rare species, may be in a transition due to disturbance and fragmentation. Ground truthing and previous studies already indicate these swamp forests as highly fragmented and disturbed.Keywords
Amphibians, Conservation, Myristica Swamps, Reptiles, Species Abundance Distribution, Trees.Full Text
- Phytosociological Analysis of Myristica Swamp Forests of Kulathupuzha, Kerala, India
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Authors
Affiliations
1 Department of Zoology, St. Thomas College, Thrissur 680 001, IN
2 Department of GIS and Remote Sensing, Kerala Forest Research Institute, Peechi, Thrissur 680 653, IN
1 Department of Zoology, St. Thomas College, Thrissur 680 001, IN
2 Department of GIS and Remote Sensing, Kerala Forest Research Institute, Peechi, Thrissur 680 653, IN
Source
Current Science, Vol 114, No 08 (2018), Pagination: 1687-1696Abstract
The vegetation of Myristica swamp forests in Kulathupuzha, southern Kerala, India, was examined with reference to floristic composition, structure and diversity. Quadrates of 100 10 m were laid inside (17) and outside the swamps (14), and trees >10 cm girth at breast height were enumerated. A total of 2246 individual trees belonging to 58 species were recorded inside the swamps as against 1203 trees belonging to 89 species from outside the swamps. A total of 1775 shrubs belonging to 46 species and 26 species of herbs with 1082 individuals were recorded from inside the swamps. A total of 3535 shrubs belonging to 83 species and 491 herbs belonging to 30 species were recorded from outside the swamps. The Myristica swamp forests showed less diversity when compared to other forest types and was dominated by two Myristicaceae species, Myristica fatua var. magnifica and Gymnacranthera farquhariana. Comparison with Myristica swamps in other regions indicates that the Kulathupuzha region has the largest populations of the endangered M. fatua var. magnifica. Immediate steps for conservation are suggested.Keywords
Floristic Composition, Phytosociological Analysis, Myristica Forests, Structure and Diversity.Full Text
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- Creation of Digital Archives in Indian Languages using CDS\ISIS:Development of M-ISIS (Malayalam ISIS) and Nitya
Abstract Views :138 |
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Authors
Affiliations
1 Kerala Forest Research Institute, Trichur, Kerala, IN
1 Kerala Forest Research Institute, Trichur, Kerala, IN
Source
Information Studies, Vol 11, No 1 (2005), Pagination: 59-70Abstract
The need for developing Information Systems in Indian vernacular languages is now felt more than ever. Use of local scripts becomes inevitable in the creation of Information systems for digitized palm leaves, manuscripts and local documents. M-ISIS is a localized version of CDSMSIS for Malayalam language and script, which is programmed using ISIS32.DLL created by UNESCO. It is a bibliographic information system for Malayalam documents using Malayalam script. Together with the techniques of 'Nitya Digital Archives' it searches using Malayalam script and retrieves both references and full texts. A special font 'Meera.ttf is designed and a rendering engine to process conjunct formation is programmed, enabling both data entry and query formulation in Malayalam. This paper describes the creation of a digital archive of 'Mathrubhumi' weekly. A few issues of the weekly were scanned to PDF (Portable Document Format) using Adobe Acrobat. Catalogue data of each article was entered into a CDSMSIS database through a data entry worksheet designed in M-ISIS, The prototype shows immense possibilities of localization of CDSMSIS in Indian languages.References
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