The Case for Hippos in Colombia

in Israel Journal of Ecology and Evolution
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Drug lord Pablo Escobar imported 4 Hippopotamuses (Hippopotamus amphibius) onto his private estate in Colombia in the 1980s. Since his arrest and assassination, the hippos have escaped the confines of the property and have begun to reproduce in the wild of Colombia. They now number approximately 60 individuals. The presence of such a large, and possibly dangerous, species in a new habitat raises several moral and ecological questions and dilemmas. It is unknown what effect these animals may have on their new environment, or the threat that they pose to the people living near them. In an effort to mitigate possible risks to the environment and local populations the Colombian government initiated an effort to castrate all males in the herd. However, it is unlikely that these efforts will be very effective in curbing the population growth of the animals. South America lost most of its large species of animals during the Quaternary Extinction and it is possible that the hippos are filling a gap that still exists in the ecology of the continent. The rewilding efforts occurring around the world aim to restore and protect natural processes and habitats by introducing (or reintroducing) apex predators or keystone species. Perhaps further research could shed light on possible positive influences that the Hippos have on the South American environment and responsible ways to avoid risks to local populations.

The Case for Hippos in Colombia

in Israel Journal of Ecology and Evolution

References

  • African Wildlife Foundation. (2018). Hippopotamus. Retrieved from: http://www.awf.org/wildlife-conservation/hippopotamus.

  • Australian Government Department of Sustainability Environment Water Population and communities. (2018). The Feral Water Buffalo (Bubalus bubalis). Retreived from: https://www.environment.gov.au/system/files/resources/b4a187ba-7a72-4ed2-ab06-7a8b8a1b87a0/files/buffalo.pdf.

  • Barnosky A.D. Koch P.L. Feranec R.S. Wing S.L. and Shabel A.B. . (2004). Assessing the causes of late Pleistocene extinctions on the continents. Science 3067075.

  • Bartlett L.J. Williams D.R. Prescott G.W. Balmford A. Green R.E. Eriksson A. Valdes P.J. S.J.S. and Manica A. . (2015). Robustness despite uncertainty: regional climate data reveal the dominant role of humans in explaining global extinctions of Late Quaternary megafauna. Ecography 39152161.

  • Deel L. (June 2014). Feral camels cause problems in Australia. Frontiers in Ecology and the Environment 1264.

  • Donlan J. (2005). Rewilding North America. Nature 436913914.

  • Donlan C.J. Berger J. Bock C.E. Bock J.H. Burney D.A. Estes J.A. Foreman D. Martin P.S. Roemer G.W. Smith F.A. Soulé M.E. and Greene H.W. . (2006). Pleistocene rewilding: an optimistic agenda for twenty-first century conservation. The American Naturalist 168660681.

  • Doughty C.E. Roman J. Faurby S. Wolf A. Haque A. Bakker E.S. Malhi Y. Dunning Jr. J.B. and Svenning J.C. . (2016). Global nutrient transport in a world of giants. Proceedings of the National Academy of Sciences 113868873.

  • Doughty C.E. Wolf A. Morueta-Holme N. Jørgensen P.M. Sandel B. Violle C. Boyle B. Kraft N.J.B. Peet R.K. Enquist B.J. Svenning J.-C. Blake S. and Galetti M. . (2016). Megafauna extinction, tree species range reduction, and carbon storage in Amazonian forests. Ecography 39194203.

  • Friend G. and K. Cellier . (May 1990). Wetland and herpetofauna of Kakadu National Park, Australia: seasonal richness trends, habitat preferences and the effects of feral ungulates. Journal of Tropical Ecology 6131152.

  • Gabbatis J. (2006). The zoo that wants to release wild elephants into Denmark. BBC May 31 2006.

  • Grey J. and D.M. Harper . (2002). “Using Stable Isotope Analyses to Identify Allochthonous Inputs to Lake Naivasha Mediated Via the Hippopotamus Gut”. Isotopes in Environmental Health Studies 38245250.

  • Howard B. (2010). Pablo Escobar’s escaped hippos are thriving in Colombia. National Geographic May 10 2010.

  • Jacques H. J. Reed-Smith and M.J. Somers . (2015). Aonyx capensis. The IUCN Red List of Threatened Species 2015: e.T1793A21938767. http://dx.doi.org/10.2305/IUCN.UK.2015-2.RLTS.T1793A21938767.en.

  • Keith Diagne L. (2015). Trichechus senegalensis (errata version published in 2016). The IUCN Red List of Threatened Species 2015: e.T22104A97168578. http://dx.doi.org/10.2305/IUCN.UK.2015-4.RLTS.T22104A81904980.en.

  • Kingdon J. (1988). East African Mammals: An Atlas of Evolution in Africa Volume 6 Part B: Large Mammals. University of Chicago Press. p. 77.

  • Kremer W. (2014). Pablo Escobar’s hippos: a growing problem. BBC News. June 24

  • Lamb D. W. Saalfeld M. McGregor G. Edwards B. Zeng and Petronella Vaarson-Morel . (2010). A GIS-based decision-making structure for managing the impacts of feral camels in Australia. The Rangeland Journal 32 pp 129143.

  • Lewison R. (2007). Population responses to natural and human mediated disturbances: assessing the vulnerability of the common hippopotamus (Hippopotamus amphibius). African Journal of Ecology 45407415 .

  • Lewison R. and Pluháček J. (2017). Hippopotamus amphibius. The IUCN Red List of Threatened Species 2017: e.T10103A18567364. http://dx.doi.org/10.2305/IUCN.UK.2017-2.RLTS.T10103A18567364.en.

  • Lundgren E.J. Ramp D. Ripple W.J. and Wallach A.D. . (2017). Introduced megafauna are rewilding the Anthropocene. Ecography doi:10.1111/ecog.03430.

  • Malhi Y. Doughty C.E. Galetti M. Smith F.A. Svenning J.-C. and Terborgh J.W. . (2016). Megafauna and ecosystem function from the Pleistocene to the Anthropocene. Proceedings of the National Academy of Sciences 113838846.

  • Masese F.O. K.G. Abrantes G.M. Gettel S. Bouillon K. Irvine and M.E. Mcclain . (2015). Are Large Herbivores Vectors of Terrestrial Subsidies for Riverine Food Webs? Ecosystems 18686706.

  • Mosepele K. P. Boyle G. Merron D. Purkey and B. Mosepele . (January 1 2009). Fish floods and ecosystem engineers: aquatic conservation in the Okavango Delta, Botswana. BioScience 595364.

  • Ramp D. and Bekoff M. . (2015). Compassion as a practical and evolved ethic for conservation. BioScience 6323327.

  • Sandom C. Faurby S. Sandel B. and Svenning J.C. . (2014). Global late Quaternary megafauna extinctions linked to humans, not climate change. Proceedings of the Royal Society B 28120133254.

  • Velez Dominguez M . (2011). “Los Hipopotamos Del Capo(El Capo’s Hippos) Discovery Network Latin America/Us Hispanic. Retrieved from: https://www.youtube.com/watch?v=Dv-LhXGxMMk.

  • Wallach A.D. Bekoff M. Nelson M.P. and Ramp D. . (2015). Promoting predators and compassionate conservation. Conservation Biology 2914811484.

  • Werner P. (2005). Impact of feral water buffalo and fire on growth and survival of mature savanna trees: an experimental field study in Kakadu National Park, northern Australia. Austral Ecology 30625647.

  • World Wildlife Fund (WWF). (2018). Niger Delta. Retrieved from: http://clonewwf.wwf-dev.org/about_our_earth/ecoregions/niger_river_delta.cfm.

  • York S. (2014). Croc Eats Baby Hippo. Daily Mirror August 5th 2014 Retrieved from: https://www.mirror.co.uk/lifestyle/gallery/croc-eats-baby-hippo-3994137.

  • Zimov S. (2005). Pleistocene park: return of the mammoth’s ecosystem. Science 308796 798.

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