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Some Aspects of Seed Dispersal by Asian Elephants (Elephas maximus) in Kaudulla National Park, Sri Lanka


Affiliations
1 National Research Council of Sri Lanka, Ground Floor, Sri Lanka Institute of Architects Building, 120/07, Vidya Mawatha, Colombo 07 (00700), Sri Lanka
2 Department of Biological Sciences, Faculty of Applied Sciences, Rajarata University of Sri Lanka, Mihinthale 50300, Sri Lanka
 

Our understanding of the qualitative and quantitative aspects of seed dispersal by Asian elephants is at its infancy. We explored some of these aspects at Kaudulla National Park, Sri Lanka, focusing on the germination potential of dispersed seeds, and the influence of gut passage on germination and latency in the seeds of Bauhinia racemosa. Seeds of ten species were dispersed and their germination potential was generally poor. However, gut passage significantly reduced the latency period of B. racemosa. Long-term research on frugivory, passage times of seeds and ranging behaviour will help develop wildlife management plans.

Keywords

Asian Elephants, Bauhinia racemosa, Latency, Seed Dispersal.
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  • Schupp, E. W., Jordano, P. and Gomez, J. M., Seed dispersal effectiveness revisited: a conceptual review. New Phytologist, 2010, 188(2), 333–353.
  • Nathan, R. and Muller-Landau, H. C., Spatial patterns of seed dispersal, their determinants and consequences for recruitment. Trends Ecol. Evol., 2000, 15(7), 278–285.
  • Bullock, J. M. and Nathan, R., Plant dispersal across multiple scales: linking models and reality. J. Ecol., 2008, 96(4), 567– 568.
  • Cain, M. L., Milligan, B. G. and Strand, A. E., Long‐distance seed dispersal in plant populations. Am. J. Bot., 2000, 87(9), 1217– 1227.
  • Levine, J. M. and Murrell, D. J., The community-level consequences of seed dispersal patterns. Annu. Rev. Ecol., Evol. Syst., 2003, 34(1), 549–574.
  • Spiegel, O. and Nathan, R., Incorporating dispersal distance into the disperser effectiveness framework: frugivorous birds provide complementary dispersal to plants in a patchy environment. Ecol. Lett., 2007, 10(8), 718–728.
  • Clark, J. S., LaDeau, S. and Ibanez, I., Fecundity of trees and the colonization–competition hypothesis. Ecol. Monogr., 2004, 74(3), 415–442.
  • Nuttle, T. and Haefner, J. W., Design and validation of a spatially explicit simulation model for bottomland hardwood forests. Ecol. Modell., 2007, 200(1–2), 20–32.
  • Bascompte, J. and Jordano, P., Plant-animal mutualistic networks: the architecture of biodiversity. Annu. Rev. Ecol., Evol. Syst., 2007, 38, 567–593.
  • Buckley, Y. M. et al., Management of plant invasions mediated by frugivore interactions. J. Appl. Ecol., 2006, 43(5), 848–857.
  • Howe, H. F. and Smallwood, J., Ecology of seed dispersal. Annu. Rev. Ecol. Syst., 1982, 13(1), 201–228.
  • Gautier-Hion, A. et al., Fruit characters as a basis of fruit choice and seed dispersal in a tropical forest vertebrate community. Oecologia, 1985, 65(3), 324–337.
  • Howe, H. F., Aspects of variation in a neotropical seed dispersal system. In Frugivory and Seed Dispersal: Ecological and Evolutionary Aspects, Springer, Dordrecht, 1993, pp. 149–162.
  • McCall, C., Mitchell‐Olds, T. and Waller, D. M., Fitness consequences of out crossing in Impatiens capensis: tests of the frequency‐dependent and sib‐competition models. Evolution, 1989, 43(5), 1075–1084.
  • Reid, N., Dispersal of misteltoes by honeyeaters and flower peckers: components of seed dispersal quality. Ecology, 1989, 70(1), 137–145.
  • Howe, H. F., Schupp, E. W. and Westley, L. C., Early consequences of seed dispersal for a neotropical tree (Virola surinamensis). Ecology, 1985, 66(3), 781–791.
  • Linhart, Y. B. and Grant, M. C., Evolutionary significance of local genetic differentiation in plants. Annu. Rev. Ecol. Syst., 1996, 27(1), 237–277.
  • Howe, H. F. and Vande Kerckhove, G. A., Removal of wild nutmeg (Virola surinamensis) crops by birds. Ecology, 1981, 62(4), 1093–1106.
  • Ortiz-Pulido, R. and Rico-Gray, V., Seed dispersal of Bursera fagaroides (Burseraceae): the effect of linking environmental factors. Southwest. Nat., 2006, 51(1), 11–21.
  • Schupp, E. W., Jordano, P. and Gomez, J. M., Seed dispersal effectiveness revisited: a conceptual review. New Phytologist, 2010, 188(2), 333–353.
  • Janzen, D. H. and Martin, P. S., Neotropical anachronisms: the fruits the gomphotheres ate. Science, 1982, 215(4528), 19–27.
  • Owen-Smith, R. N., Megaherbivores: The influence of very large body size on ecology. Cambridge Studies in Ecology, Cambridge Press, Cambridge, 1988.
  • Campos-Arceiz, A. and Blake, S., Megagardeners of the forest–the role of elephants in seed dispersal. Acta Oecol., 2011, 37(6), 542– 553.
  • Chen, J., Deng, X., Zhang, L. and Bai, Z., Diet composition and foraging ecology of Asian elephants in Shangyong, Xishuangbanna, China. Acta Ecol. Sin., 2006, 26(2), 309–316.
  • Campos-Arceiz, A., Lin, T. Z., Htun, W., Takatsuki, S. and Leimgruber, P., Working with mahouts to explore the diet of work elephants in Myanmar (Burma). Ecol. Res., 2008, 23(6), 1057–1064.
  • Dudley, J. P., Seed dispersal of Acacia erioloba by African bush elephants in Hwange National Park, Zimbabwe. Afr. J. Ecol., 1999, 37(4), 375–385.
  • Sivaganesan, N. and Johnsingh, A. J. T., Food resources crucial to the wild elephants in Mudumalai wildlife sanctuary, South India. A Week with Elephants, Bombay Natural History Society, Bombay and Oxford University Press, New Delhi, 1995, pp. 405–423.
  • Kitamura, S., Yumoto, T., Poonswad, P. and Wohandee, P., Frugivory and seed dispersal by Asian elephants, Elephas maximus, in a moist evergreen forest of Thailand. J. Trop. Ecol., 2007, 23(3), 373–376.
  • Campos-Arceiz, A., Larrinaga, A. R., Weerasinghe, U. R., Takatsuki, S., Pastorini, J., Leimgruber, P., Fernando, P. and Santamaría, L., Behavior rather than diet mediates seasonal differences in seed dispersal by Asian elephants. Ecology, 2008, 89(10), 2684–2691.
  • Yumoto, T., Maruhashi, T., Yamagiwa, J. and Mwanza, N., Seeddispersal by elephants in a tropical rain forest in Kahuzi-Biega National Park, Zaire. Biotropica, 1995, 27(4), 526–530.
  • Dudley, J. P., Seed dispersal by elephants in semiarid woodland habitats of Hwange National Park, Zimbabwe 1. Biotropica, 2000, 32(3), 556–561.
  • Nchanji, A. C. and Plumptre, A. J., Seed germination and early seedling establishment of some elephant-dispersed species in Banyang-Mbo Wildlife Sanctuary, south-western Cameroon. J. Trop. Ecol., 2003, 19(03), 229–237.
  • Blake, S., Deem, S. L., Mossimbo, E., Maisels, F. and Walsh, P., Forest elephants: tree planters of the Congo. Biotropica, 2009, 41(4), 459–468.
  • Samansiri, K. A. P. and Weerakoon, D. K., A study on the seed dispersal capability of Asian elephants in the northwestern region of Sri Lanka. Gajah, 2008, 28, 19–24.
  • Jothish, P. S., Frugivory and seed dispersal of woody species by the Asian elephant (Elephas maximus) in a mid-elevation tropical evergreen forest in India. J. Trop. Ecol., 2013, 29(2), 181–185.
  • McKay, G. M., Behavior and Ecology of the Asiatic Elephant in Southeastern Ceylon (No. 125), Smithsonian Institution Press, Washington, DC, 1973.
  • Ishwaran, N., Elephant and woody-plant relationships in Gal Oya, Sri Lanka. Biol. Conserv., 1983, 26(3), 255–270.
  • Vandercone, R., Dietary Shifts, Niche Relationships and Interspecific Competition in Sympatric Grey Langur (Semnopithecus entellus) and Purple-faced Langur (Trachypithecus vetulus) in Sri Lanka. Ph D Thesis, Washington University, St Louis, 2011.
  • Jayasingam, T., Balasubramaniam, S. and Vivekanantharajah, S., Vegetation survey of the Wasgomuwa National Park: reconnaissance. Vegetatio, 1992, 101(2), 171–181.
  • Vancuylenberg, B. W. B., Feeding behaviour of the Asiatic elephant in south-east Sri Lanka in relation to conservation. Biol. Conserv., 1977, 12(1), 33–54.
  • Valenta, K. and Fedigan, L. M., Effects of gut passage, feces, and seed handling on latency and rate of germination in seeds consumed by capuchins (Cebus capucinus). Am. J. Phys. Anthropol.: Off. Publ. Am. Assoc. Phys. Anthropol., 2009, 138(4), 486–492.
  • Moles, A. T. et al., Global patterns in seed size. Global Ecol. Biogeogr., 2007, 16(1), 109–116.
  • Leimgruber, P., Gagnon, J. B., Wemmer, C., Kelly, D. S., Songer, M. A. and Selig, E. R., Fragmentation of Asia’s remaining wildlands: implications for Asian elephant conservation. In Animal Conservation Forum, Cambridge University Press, 2003, vol. 6, No. 4, pp. 347–359.
  • Griz, L. M. S. and Machado, I. C. S., Fruiting phenology and seed dispersal syndromes in caatinga, a tropical dry forest in the northeast of Brazil. J. Trop. Ecol., 2001, 17(2), 303–321.
  • Fernando, P., Elephants in Sri Lanka: past, present, and future. Loris, 2000, 22, 38–44.
  • Ministry of Forestry and Environment. Biodiversity conservation in Sri Lanka: A Framework for Action, MFE, Sri Lanka, 1999.
  • Vandercone, R. P., Dinadh, C., Wijethunga, G., Ranawana, K. and Rasmussen, D. T., Dietary diversity and food selection in Hanuman langurs (Semnopithecus entellus) and purple-faced langurs (Trachypithecus vetulus) in the Kaludiyapokuna Forest Reserve in the dry zone of Sri Lanka. Int. J. Primatol., 2012, 33(6), 1382– 1405.
  • Campos-Arceiz, A., The ecological role of Asian elephants as agents of seed dispersal in human-dominated landscapes. Doctoral dissertation, The University of Tokyo, 2009.
  • Shoshani, J., Understanding proboscidean evolution: a formidable task. Trends Ecol. Evol., 1998, 13(12), 480–487.
  • Babweteera, F., Savill, P. and Brown, N., Balanites wilsoniana: regeneration with and without elephants. Biol. Conserv., 2007, 134(1), 40–47.
  • Krefting, L. W. and Roe, E. I., The role of some birds and mammals in seed germination. Ecol. Monogr., 1949, 19(3), 269–286.
  • Traveset, A. and Verdu, M., A meta-analysis of the effect of gut treatment on seed germination. In Seed Dispersal and Frugivory: Ecology, Evolution, and Conservation, CABI, 2002, vol. 22, pp. 339–350.
  • Prasad, P. and Nautiyal, A. R., Physiology of germination in Bauhinia: involvement of seed coat in inhibition of germination in B. racemosa Lam. seeds. Seed Sci. Technol. (Switzerland), 1996, 24(2), 305–308.
  • Traveset, A., Effect of seed passage through vertebrate frugivores' guts on germination: a review. Perspect. Plant Ecol. Evol. Syst., 1998, 1(2), 151–190.
  • Weaver, S. E. and Cavers, P. B., The effects of date of emergence and emergence order on seedling survival rates in Rumex crispus and R. obtusifolius. Can. J. Bot., 1979, 57, 730–738.
  • Fernando, P. and Leimgruber, P., Asian elephants and seasonally dry forests. The Ecology and Conservation of Seasonally Dry Forests in Asia, Smithsonian Institution Scholarly Press, Washington, DC, 2011, pp. 151–163.
  • Richardson, D. M., Allsopp, N., D’antonio, C. M., Milton, S. J. and Rejmánek, M., Plant invasions – the role of mutualisms. Biol. Rev., 2000, 75(1), 65–93.
  • Bal, P., Nath, C. D., Nanaya, K. M., Kushalappa, C. G. and Garcia, C., Elephants also like coffee: trends and drivers of human– elephant conflicts in coffee agroforestry landscapes of Kodagu, Western Ghats, India. Environ. Manage., 2011, 47(5), 789–801.

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  • Some Aspects of Seed Dispersal by Asian Elephants (Elephas maximus) in Kaudulla National Park, Sri Lanka

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Authors

Perera Mahesha
National Research Council of Sri Lanka, Ground Floor, Sri Lanka Institute of Architects Building, 120/07, Vidya Mawatha, Colombo 07 (00700), Sri Lanka
Vandercone Rajnish
Department of Biological Sciences, Faculty of Applied Sciences, Rajarata University of Sri Lanka, Mihinthale 50300, Sri Lanka

Abstract


Our understanding of the qualitative and quantitative aspects of seed dispersal by Asian elephants is at its infancy. We explored some of these aspects at Kaudulla National Park, Sri Lanka, focusing on the germination potential of dispersed seeds, and the influence of gut passage on germination and latency in the seeds of Bauhinia racemosa. Seeds of ten species were dispersed and their germination potential was generally poor. However, gut passage significantly reduced the latency period of B. racemosa. Long-term research on frugivory, passage times of seeds and ranging behaviour will help develop wildlife management plans.

Keywords


Asian Elephants, Bauhinia racemosa, Latency, Seed Dispersal.

References





DOI: https://doi.org/10.18520/cs%2Fv118%2Fi4%2F648-654