Consequences of Habitat Loss and Habitat Fragmentation on the Survival of Monitor Lizard Populations in Bangladesh: A Review and Prospectus
Paper Details
Consequences of Habitat Loss and Habitat Fragmentation on the Survival of Monitor Lizard Populations in Bangladesh: A Review and Prospectus
Abstract
The ecosystems of Bangladesh support three different monitor lizard’s species (Varanus bengalensis, V. flavescens and V. salvator). But, these huge populations are in great threats from habitat loss and fragmentation point of view. Nonetheless, maximum research studies have not given clear insights into their population-level implications. There is an obvious need to explore the mechanisms that dispose activity patterns, abundance and distribution of monitor lizard. The primary objectives of this paper is to sum up the current research knowledge, information gaps and propose scientific approaches to give clear idea, efficient management and conservation of monitor lizard populations in ecosystems facing habitat loss and fragmentation. Most of the research study showed that due to habitat loss and fragmentation all of the Monitor lizards are facing continuous threats for surviving in their natural habitats. Habitat fragmentation decreases territory range and dispersal and increases mortality rates of the Monitor lizards. It’s narrowing the genetic diversity and perhaps the production of infertile youths. The species also faces the high vulnerability to pathogens, invasive species, climate change, increased Ultraviolet-B exposure and environmental pollution. The ultimate result or impact of habitat loss and fragmentation is actually the total loss or extinction of wild fauna including monitor lizards from that particular habitat. So, proper conservation and management strategy could only save these important species from extinction.
Auffenberg W. 1979d. Research on Monitor Lizards. Tiger Paper 6(4), 20-21.
Baillie JEM, Hilton-Taylor C, Stuart SN. 2004. IUCN Red List of Threatened Species. A Global Species Assessment. IUCN Gland, Switzerland and Cambridge, UK.
Brown JH, Kodric-Brown A. 1977. Turnover rates in insular biogeography: effect of immigration on extinction. Ecology 58, 445–449.
Brown WC, Alacala AC. 1970. The zoogeography of the herpetofauna of the Philippine Islands, a fringing archipelago. Proc. Calif. Acad. Sci. 4th series 38(6), 105 – 130.
Burden WD. 1928. Observations on the habits and distribution of Varanus komodoensis. Amer. Mus. Nov. 316, 1-10.
Carr LW, Pope SE, Fahrig L. 2002. Impacts of landscape transformation by roads. In: Gutzwiller, K.J. (Ed.), Concepts and Applications of Landscape Ecology in Biological Conservation. Springer-Verlag, New York.
Fahrig L, Merriam G. 1994. Conservation of Fragmented Populations. Conservation Biology, 8(1), 50-59
Hansson. 1991. Dispersal and connectivity in meta-populations. Biological Journal of the Linnaean Society, 42, 89-103.
Hobbs RJ. 1992. The role of corridors in conservation: Solution or bandwagon? Trends in Ecology and Evolution 7, 389- 392.
Hobbs RJ, Saunders DA, Lobry de Bruyn LA, Main AR. 1993b. Changes in the biota. Reintegrating Fragmented Landscapes. Towards Sustainable Production and Nature Conservation (eds R. J. Hobbs & D. A. Saunders), Springer-Verlag, New York, 65-106.
Hogan C. 2015. Habitat fragmentation. Retrieved from http://www.eoearth.org/view/article/153225
Humphreys WF, Kitchener DJ. 1982. The effect of habitat utilization on species-area curves: implications for reserve area. Journal of Biogeography 9, 391-396.
IUCN. 2015. The IUCN Red List of Threatened Species. Version 2015-4. Retrieved from <www.iucnredlist.org>. Downloaded on 21 December 2015
Khan MMH. 2008. Protected Areas of Bangladesh – A Guide to Wildlife. Nishorgo Program, Wildlife Management and Nature Conservation Circle, Bangladesh Forest Department.
Kitchener DJ, How RA. 1982. Lizard species in small main land habitat isolates and islands off south-western Western Australia. Australian Wildlife Research 9, 357- 363.
Lande R. 1988. Genetics and demography in biological conservation. Science 241, 1455–1460.
Lord JM, Norton DA. 1990. Scale and spatial concept of fragmentation. Conservation Biology 4, 197-202.
Norton DA, Hobbs RJ, Atkins L. 1995. Fragmentation, disturbance, and plant distribution: mistletoes in wood land remnants in the Western Australian wheat belt. Conservation Biology 9, 426-438.
Nunney L, Elam DR. 1994. Estimating the effective population size of conserved populations. Conservation Biology 8, 175-184.
Ovaska K, Sopuck L, Engelstoft C, Matthias L. 2004. Best Management Practices for Amphibians and Reptiles in Urban and Rural Environments in British Columbia. BC Ministry of Water, Land and Air Protection Nanaimo, BC.
Pounds JA, Fogden MPL, Campbell JH. 1999. Biological response to climate change on a tropical mountain. Nature 398, 611–615.
Rahman KMM, Rakhimov II. 2015. Habitat Preference and Feeding Ecology of the Bengal Monitors (Varanus bengalensis) in Natore, Bangladesh. International Research Journal, 11(42) part 3, 96-98.
Rahman KMM, Khan MMH, Rakhimov II. 2015. Scavenging Behavior of the Bengal Monitor (Varanus bengalensis) in Jahangirnagar University Campus, Bangladesh. Journal of Scientific Research & Reports 7(7), 539-550.
Stuart. 2004. Status and trends of amphibian declines and extinctions worldwide. Science 306, 1783–1786.
Scholes RJ, Biggs R. 2004. A biodiversity intactness index. Nature 434, 45-49.
Simberloof DS, Abble LG. 1976b. Island biogeography theory and conservation practice. Science 191, 285-286
Simberloof DS, Abble LG. 1984. Conservation and obfuscations: Subdivision of reserves. Oikos 42, 399-401
Simberloff DS. 2000. What do we really know about habitat fragmentation?. Texas Journal of Science, 52, 5–22.
Wilson EO. 1999. The Diversity of Life. Longitude, New York, USA.
Yeboah S. 1993. Aspects of the biology of two sympatric species of monitor lizards Varanus niloticus and Varanus exanthematicus (Reptilia, Sauria) in Ghana. African Journal of Ecology. December 324, 331-333.
Rahman K.M. Mijanur, Rakhimov Ilgizar Iliazovic (2016), Consequences of Habitat Loss and Habitat Fragmentation on the Survival of Monitor Lizard Populations in Bangladesh: A Review and Prospectus; JBES, V8, N2, February, P139-145
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