Estimation of large herbivore densities in the tropical forests of southern India using distance sampling

Jathanna, Devcharan; Karanth, K. Ullas; Johnsingh, A. J. T.

doi:10.1017/s0952836903004278

Cited by 77 publications

(69 citation statements)

References 19 publications

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“…This method has been widely applied to estimate densities of prey species [6,7,[14][15][16][17]. Totally five line transects of varying length from 1.5 to 2.0 km were laid in the study area covering all major vegetation types to ensure uniform distribution without leaving any large gaps between transects.…”

Section: Methodology Prey Estimationmentioning

confidence: 99%

Abundance of Large Carnivore and its Prey Species after Removal of Cattle Grazing in Mundanthurai Plateau of Kalakad-Mundanthurai Tiger Reserve, Tamil Nadu, India

Venkatesh¹,

Sridharan²,

Aj³

et al. 2017

J Biodivers Endanger Species

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Large carnivores are experiencing massive decline in their population and abundance due to loss of habitat and loss of prey species. The present study was carried out in Mundanthurai Pleateu of Kalakad-Mundanthurai Tiger Reserve, Tamil Nadu, India. In Mundanthurai Plateau, Tiger Panthera tigris has been absent in past two decades which is linked with low density of large ungulate prey species such as gaur and sambar. In this study we examined the status of large carnivore and prey species after the removal of cattle grazing in the plateau. The study reveals that the overall density of ungulate prey species was 12.4 ± 1.5/Km 2 and gaur density found to be 3.37 ± 1.40/Km 2 . The available prey biomass of 3282.02 kg can support around 11 tigers/100 Km 2 and it may be lower due to biomass which is shared by other sympatric carnivores. The present estimated leopard density in the plateau is 24.32 ± 4.38 using camera traps spatially explicit capture-recapture method. Overabundance of leopard may be due to the absence of tiger in the plateau and we have confirmed the presence of one male tiger in the plateau so far. The present study may provide baseline information on monitoring tigers and co-predators in the Mundanthurai Plateau of Kalakad Mundanthurai Tiger Reserve.

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Section: Methodology Prey Estimationmentioning

confidence: 99%

Abundance of Large Carnivore and its Prey Species after Removal of Cattle Grazing in Mundanthurai Plateau of Kalakad-Mundanthurai Tiger Reserve, Tamil Nadu, India

Venkatesh¹,

Sridharan²,

Aj³

et al. 2017

J Biodivers Endanger Species

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“…No reliable density estimates are available for Borneo. In tropical southern India, 3.64 ± 0.63 individuals/ km 2 (Jathanna et al 2003); in Thailand between 1.0 and 5.4 individuals/km 2 , with lower densities in the dry compared to the wet season (Srikosamatara 1993); in southern Sumatra between ca. 0.5 and 2 individuals/km 2 .…”

Section: Sambar Cervus Unicolormentioning

confidence: 98%

Life after logging: reconciling wildlife conservation and production forestry in Indonesian Borneo

Meijaard¹,

Sheil²,

Nasi³

et al. 2005

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This book has been published with fi nancial support from UNESCO, ITTO, and SwedBio. The authors are responsible for the choice and presentation of the facts contained in this book and for the opinions expressed therein, which are not necessarily those of CIFOR, UNESCO, ITTO, and SwedBio and do not commit these organisations. The review and synthesis refl ect inputs from many organisations, including MoF, LIPI, WCS, TNC, WWF and CIRAD. This review has also benefi ted from research, and related activities, supported by grants from ITTO, the European Commission, the World Bank, and the MacArthur Foundation. The opinions expressed in this book are not endorsed by any of these organisations. ISBN 979-3361-56-5The Center for International Forestry Research (CIFOR) was established in 1993 as part of the Consultative Group on International Agricultural Research (CGIAR) in response to global concerns about the social, environmental and economic consequences of forest loss and degradation. CIFOR research produces knowledge and methods to improve the well-being of forest-dependent people and to help countries manage their forests wisely for sustainable benefi ts. This research is conducted in more than two dozen countries, in collaboration with numerous partners. Since it was founded, CIFOR has also played a central role in infl uencing global and national forestry policies. National Library of Indonesia Cataloging-in-Publication DataLife after logging: Reconciling wildlife conservation and production forestry in Indonesian Borneo/ Meijaard, E., Sheil, D., Nasi, R., Augeri, D., Rosenbaum, B., Iskandar, D., Setyawati, T., Lammertink, M., Rachmatika, I., Wong, A., Soehartono, T., Stanley, S. and O'Brien, T. 308Life after logging | ix Figure 9. Sundasciurus lowii, seen here feeding on Artocarpus fruits, is a common squirrel of undisturbed and disturbed lowland forests 78 Figure 10. Malay Civet (Viverra tangalunga), one of the Bornean civet species that are negatively affected by the effects of timber harvest 87 Figure 11. Limnonectes leporinus, a Bornean endemic generally found near large or medium-sized streams 101 Figure 12. Numbers of amphibians found in an unlogged area in Danum Valley, a area under reduced impact logging (RIL), and an area under conventional logging (CL) 102 Figure 13. Box-and-whiskers plot of logging tolerance in relation to species age 118 Figure 14. Discriminant analysis of 3 variables (number of small Sundaic islands on which species occurs (after Meijaard 2003b), number of species per genus, and number of subspecies per species) and their predictive value for the sensitivity of mammal species to logging 119 Figure 15. Box-and-whiskers plot of categories for tolerance to logging in relation to distribution on small islands 120 Figure 16. Box-and-whiskers plot of categories for tolerance to logging in relation to number of young per nest or litter 120 Figure 17. Column charts of sensitivity to logging in relation to distribution range 121 Figure 18. Column charts of sensitivity to logging in relat...

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“…The study involved visual counts of animals 9,21 , an extensively used method for estimating abundance. A total of 22 transects ( Figure 1) were randomly laid across all four major habitat types of the park.…”

Section: Unicolor) Wild Boar (Sus Scrofa) and Feral Cattle (Bos Indimentioning

confidence: 99%

“…Understanding the social behaviour and demography of wild animals plays a major role in population monitoring and effective conservation planning 7,8 . Monitoring the population dynamics of herbivores, in particular, helps in comprehending various ecological processes at landscape and ecosystem levels 9 . Herbivores play a major role in forest ecosystems by influencing forest structure, composition, productivity, nutrient cycling and soil structure 10,11 .…”

mentioning

confidence: 99%

An Updated Account of Mammal Species and Population Status of Ungulates in Keoladeo National Park, Bharatpur, Rajasthan

Singh¹,

Mukherjee²,

Dookia

et al. 2017

Current Science

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This study documents the present status of mammals in Keoladeo National Park (KNP) and assesses the population structure of ungulates. It provides a comprehensive account of the mammal diversity of the park and aims to compare the change in mammalian species account ever since the park became a protected area. We employed line transect surveys for density estimation of ungulates. We report local extinction of eight species since 1966, and extant diversity of 34 mammalian species in KNP. The estimated densities of chital, feral cattle, nilgai, wild boar and sambar were 52.37, 33.66, 13.68, 3.21 and 0.32 individuals/km 2 respectively. Although blackbuck has become locally extinct and sambar density has significantly reduced, chital and nilgai as habitat generalists have increased in density in the last 25 years, which has contributed to an overall increase in ungulate population density in KNP. The mammalian diversity has changed substantially with local extinction of some carnivores and constant change in the habitat condition.

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Estimation of large herbivore densities in the tropical forests of southern India using distance sampling

Cited by 77 publications

References 19 publications

Abundance of Large Carnivore and its Prey Species after Removal of Cattle Grazing in Mundanthurai Plateau of Kalakad-Mundanthurai Tiger Reserve, Tamil Nadu, India

Abundance of Large Carnivore and its Prey Species after Removal of Cattle Grazing in Mundanthurai Plateau of Kalakad-Mundanthurai Tiger Reserve, Tamil Nadu, India

Life after logging: reconciling wildlife conservation and production forestry in Indonesian Borneo

An Updated Account of Mammal Species and Population Status of Ungulates in Keoladeo National Park, Bharatpur, Rajasthan

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