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Jose, Joyce
- Checklist of Flora of Myristica Swamps - A Critically Endangered Fresh Water Ecosystem of Southern Western Ghats of Kerala, India
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Authors
Affiliations
1 Department of Zoology, Mar Thoma College, Tiruvalla, Kerala, IN
1 Department of Zoology, Mar Thoma College, Tiruvalla, Kerala, IN
Source
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
- The State of Myristica Swamp Forests in Southern Western Ghats, India - Butterfly Species Richness as an Indicator
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Authors
Affiliations
1 Department of Zoology, St. Thomas' College, Thrissur-1, Kerala, IN
2 Kerala Forest Research Institute, Peechi, Thrissur, Kerala, IN
1 Department of Zoology, St. Thomas' College, Thrissur-1, Kerala, IN
2 Kerala Forest Research Institute, Peechi, Thrissur, Kerala, IN
Source
Indian Forester, Vol 141, No 10 (2015), Pagination: 1056-1066Abstract
Species richness of butterflies in and around the highly fragmented, threatened and restricted patches of Myristica swamp forests in South Western Ghats, Kerala, India was documented. Eighty species of butterflies belonging to 5 families were recorded from these swamp forests with a land area of less than 1.5 km2 (149.75 ha). Species composition inside and outside the swamps showed above 80% similarity Presence-absence of butterfly species was affected by variations in host plant diversity, % of canopy cover, % of inundated area and % of ground litter cover. Habitat usage studies indicated that while habitat specialists were restricted to larger patches of evergreen forests, habitat generalists were not similarly constrained and formed the bulk of the species. The ecotone area between the swamps and the adjacent matrix had relatively more number of species, except where the ecotone had been disturbed. The increase in the butterfly species diversity at the expense of habitat specialists and the proliferation of generalists is an indicator of cryptic changes in the swamp environment leading to increase in microhabitats and host plants associated with disturbance and call for immediate conservation measures.Keywords
Butterfly, Myristica Swamp Forests, Species Richness, Habitat, Conservation.- Species Abundance Distributions of Selected Communities in the Myristica Swamp forests of Southern Kerala
Abstract Views :211 |
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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
- Distribution and Conservation Status of the Caenophidian Snake, Xylophis captaini Gower & Winkler, 2007 in the Western Ghats, India
Abstract Views :250 |
PDF Views:81
Authors
Affiliations
1 Salim Ali Centre for Ornithology and Natural History, Anaikatti (PO), Coimbatore 641 108, IN
2 Department of Zoology, St. Thomas College, Thrissur 680 001, IN
1 Salim Ali Centre for Ornithology and Natural History, Anaikatti (PO), Coimbatore 641 108, IN
2 Department of Zoology, St. Thomas College, Thrissur 680 001, IN
Source
Current Science, Vol 110, No 5 (2016), Pagination: 908-912Abstract
We update the distribution of the little known Captain's Wood Snake (Xylophis captaini) in the Western Ghats, based on new observations and collation of the literature. The Maximum Entropy (MaxEnt) algorithm was used to predict the distribution of the species, which showed potential sites south of 10°N and elevations between 50 and 1000 m amsl. Xylophis captaini is listed as 'Least Concern' under IUCN criteria, and we suggest the possible elevation of its status to the 'Near-Threatened' category on account of its narrow distributional range and general lack of data on its ecology. The present study highlights the utility of niche models in assessing the distribution of cryptic and little known species in biodiversity-rich areas such as the Western Ghats.Keywords
Agasthyamalai Biosphere Reserve, Captain’s Wood Snake, Ecological Niche Modelling, Endemic Species.Full Text
- Phytosociological Analysis of Myristica Swamp Forests of Kulathupuzha, Kerala, India
Abstract Views :292 |
PDF Views:95
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
References
- Myers, N., Biodiversity hotspots revisited. Bioscience, 2003, 53, 916–917.
- Cincotta, R. P., Wisnewski, J. and Engleman, R., Human population in the biodiversity hotspots. Nature, 2000, 404, 990–992.
- Champion, H. G. and Seth, S. K., A Revised Survey of the Forest Types of India, Government of India (GoI), New Delhi, 1968, pp. xxiii + 404.
- Krishnamoorthy, K., Myristica swamps in the evergreen forests of Tranvancore. Indian For., 1960, 86(5), 314–315.
- Varghese, V., Vegetation structure, floristic diversity and edaphic attributes of the freshwater swamps forests in southern Kerala. Dissertation (B Sc) submitted to College of Forestry, Kerala Agricultural University, Mannuthy, Kerala, 1992, pp. 113 + iv.
- Varghese, A. V. and Kumar, B. M., Ecological observations in the freshwater swamp forests of Southern Kerala, India. J. Trop. For. Sci., 1997, 9, 299–314.
- Varghese, A. O. and Menon, A. R. R., Floristic composition, dynamics and diversity of Myristica swamp forests of southern Western Ghats, Kerala. Indian For., 1999, 125, 775–783.
- Varghese, A. O. and Menon, A. R. R., Ecological niches and amplitudes of rare, threatened and endemic trees of Peppara Wildlife Sanctuary. Curr. Sci., 1999, 76(9), 1204–1208.
- Chandran, M. D. S., Mesta, D. K. and Naik, M. B., Inventorying and conservation of the Myristica swamps of Uttara Kannada. Final Report, FRTI, Bangalore, 1999.
- Chandran, M. D. S. and Mesta, D. K., On the conservation of the Myristica swamps of the Western Ghats. In Forest Genetic Resources: Status, Threats, and Conservation Strategies (eds Uma Shaanker, R., Ganeshaiah, K. N. and Bawa, K. S.), Oxford & IBH, New Delhi, 2001, pp. 1–19.
- Chandran, M. D. S. and Mesta, D. K., Myristica swamps. Sahyadri E-News, 2005, issue 13; http//wgbis.ces.iisc.ernet.in/biodiversity/sahyadrienews/mewsletter/issue13/index.htm (accessed on 23 January 2017).
- Santhakumaran, L. N., Singh, A. and Thomas, V. T., Description of a sacred grove in Goa (India), with notes on the unusual aerial ischolar_mains produced by its vegetation. Wood, 1995, 24–28.
- Nair, P. V., Ramachandran, K. K., Swarupanandan, K. and Thomas, T. P., Mapping Biodiversity of the Myristica swamps in Southern Kerala, Research Report No. 326, KFRI, Peechi, 2007, p. 255.
- Roby, T. J., Floristic structure and diversity of Myristica swamps at Kulathupuzha in a GIS perspective, Ph D thesis, Forest Research Institute (Deemed) University, Dehradun, 2011, pp. 148 + xxxi.
- Roby, T. J., Jose, J. and Nair, P. V., Checklist of flora of Myristica swamps – a critically endangered freshwater ecosystem of southern Western Ghats of Kerala, India. Indian For., 2014, 140(6), 608–616.
- Roby, T. J., Nair, P. V. and Jose, J., GIS techniques for mapping highly fragmented ecosystems – a case study on the Myristica swamp forests of southern Kerala, India. Res. J. Rec. Sci., 2014, 3(ISC-2013), 110–119.
- Prabhugaonkar, A., Mesta, D. K. and Janarthanam, M. K., First report of three redlisted tree species from swampy relics of Goa State, India. J. Threatened Taxa, 2014, 6(2), 5503–5506.
- Chandran, M. D. S. and Sivan, V. V., Myristicaceae. Classroom Lifescape Series, Part II. Resonance, 1999, 72, 10–12.
- Ravikanth, G., Vasudeva, R., Ganeshaiah, K. N. and Uma Shaanker, R., Molecular analysis of Semecarpus kathalekanensis (Anacardiaceae) – a newly described species from the Myristica swamps of Western Ghats, India. Indian For., 2004, 130(1), 101–104.
- Sharma, M. V. and Kundaranahalli, R. S., Pollinators, pollination efficiency and fruiting success in a wild nutmeg, Myristica dactyloides. J. Trop. Ecol., 2011, 27(04), 405–412.
- Sharma, M. V. and Armstrong, J. E., Pollination of Myristica and other nutmegs in natural populations. Trop. Conserv. Sci., 2013, 6(5), 595–607.
- Krishna, S. and Somanathan, H., Secondary removal of Myristica fatua (Myristicaceae) seeds by crabs in Myristica swamp forests in India. J. Trop. Ecol., 2014, 30(3), 259–263.
- Ramesh, B. R. and Pascal, J. P., Atlas of the Endemics of the Western Ghats (India). Distribution of Tree Species in the Evergreen and Semi-evergreen Forests, French Institute, Pondicherry, 1997, p. 403.
- Rodgers, W. A. and Panwar, H. S., Planning wildlife protected area network in India. State summaries. A report prepared for the Department of Environment, Forests and Wildlife, GoI, Wildlife Institute of India, 1988, vol. II, p. 267.
- Rodgers, W. A. and Panwar, H. S., Planning wildlife protected area network in India. The report. A report prepared for the Department of Environment, Forests and Wildlife, GoI, Wildlife Institute of India, 1988, vol. I, p. 341.
- Dasa, A. J., Krishnaswamya, K. S., Bawaa, M. C., Kirana, V., Srinivas, N., Samba Kumar, K. and Ullas, K., Prioritisation of conservation areas in the Western Ghats, India. Biol. Conserv., 2006, 13(3), 16–31.
- Swamy, S. L., Dutt, C. B. S., Murthy, M. S. R., Mishra, A. and Bargali, S. S., Floristics and dry matter dynamics of tropical wet evergreen forests of Western Ghats, India. Curr. Sci., 2010, 99(3), 353–364.
- Mueller, D. and Dombois, H. E., Aims and Methods of Vegetation Ecology, John Wiley, London, 1974, pp. xix + 547.
- Sivaram, M., Sasidharan, N., Ravi, S. and Sujanapal, P., Computer aided inventory analysis for sustainable management of non-timber forest product resources. J. Non-Timber For. Prod., 2006, 13(4), 237–244.
- Magurran, A. E., Ecological Diversity and its Measurements, Chapman and Hall, London, 1988, p. x + 178.
- Raunkiaer, C., The Life Forms of Plants and Statistical Plant Geography, Oxford University Press, Oxford, UK, 1934, p. 632.
- Sasidharan, N., Biodiversity documentation for Kerala, Part 6: flowering plants, KFRI Handbook No. 17. KFRI, Peechi, 2004, p. 702.
- Sasidharan, N., Forest Trees of Kerala, KFRI, Peechi, 2004, p. viii + 166.
- Sasidharan, N., Illustrated manual on tree flora of Kerala supplemented with computer aided identification, KFRI Research Report No. 282, KFRI, Peechi, 2006, p. 502.
- Sasidharan, N., Tree ID: Tree identification key for Kerala (CD). KFRI Handbook No. 17, KFRI, Peechi, 2007.
- Roby, T. J., Jose, J. and Nair, P. V., Syzygium travancoricum (Gamble) – a critically endangered and endemic tree from Kerala, India – threats, conservation and prediction of potential areas; with special emphasis on Myristica swamps as a prime habitat. Int. J. Sci. Environ. Technol., 2013, 2(6), 1335–1352.
- Gleason, H. A., The individualistic concept of the plant association. Bull. Torrey Bot. Club, 1926, 53, 7–26.
- Leigh Jr, E. G., Wright, S. and Herre, E. A., The decline of tree diversity on newly formed isolated tropical islands: a test of null hypothesis and some implications. Evol. Ecol., 1993, 7, 76–102.
- Jose, J., Roby, T. J., Ramachandran, K. K. and Nair, P. V., Species abundance distribution of selected communities in the Myristica swamp forest of southern Kerala. Curr. Sci., 2014, 107(3), 447–453.
- Bhatt, P. R. and Kaveriappa, K. M., Ecological studies on Myristica swamp forests of Uttara Kannada, Karnataka, India. Trop. Ecol., 2009, 50(2), 329–337.
- Sharma, J. K. et al., Studies on the biodiversity of New Amarambalam reserved forests of Nilgiri Biosphere Reserve. KFRI Research Report No. 247, KFRI, Peechi, 2002. p. 230.