12/3/2023 0 Comments A romping western black rhinocerosRecently, it has been reported that rhinoceros poaching has reached a critical point, and if the killing continues, rhinoceros deaths would exceed births in 2016–2018 3. At the 16 th meeting of the Conference of Parties to the Convention on International Trade in Endangered Species (CITES 2013) 2, it was reported that poaching of black and white rhinoceroses in South Africa had increased from 13 per annum in 2007 to 455 by mid-October 2012, and Zimbabwe, where populations are much smaller, lost an average of 39 rhinoceroses per annum between 20 (CITES 2013) 2. Renewed poaching has threatened this recovery, as rhinoceros horn has attained an unprecedented and steadily rising value of $65,000 per kilogram 1. 1b), the black rhinoceros now survives in only five countries: South Africa, Namibia, Kenya, Zimbabwe and Tanzania (ranked by total population size). Despite a historic range that included much of sub-Saharan Africa ( Fig. During the 20 th century, populations are thought to have declined by more than twenty-fold until the mid-1990s, when intensive protection led to a population recovery to just over 5,000 individuals by 2014. longipes) declared extinct in 2011, has raised fears that this species will disappear from the wild within the next two decades 1 ( Fig. The well documented poaching and subsequent demographic collapse of black rhinoceros ( Diceros bicornis) populations, including the western subspecies ( D. Our results suggest a complete re-evaluation of current conservation management paradigms for the black rhinoceros. We also identify conservation units that will help maintain evolutionary potential. longipes), declared extinct in 2011, extends into southern Kenya, where a handful of individuals survive in the Masai Mara. We found that the historic range of the West African subspecies ( D. Genetically unique populations in countries such as Nigeria, Cameroon, Chad, Eritrea, Ethiopia, Somalia, Mozambique, Malawi and Angola no longer exist. Using both mitochondrial and nuclear datasets, we described a staggering loss of 69% of the species’ mitochondrial genetic variation, including the most ancestral lineages that are now absent from modern populations. Here we examined the range-wide genetic structure of historic and modern populations using the largest and most geographically representative sample of black rhinoceroses ever assembled. This knowledge gap has hampered conservation efforts because hunting has dramatically reduced the species’ once continuous distribution, leaving five surviving gene pools of unknown genetic affinity. Despite a wide historic distribution, the black rhinoceros was traditionally thought of as depauperate in genetic variation, and with very little known about its evolutionary history. "Really we're just waiting for the owner to step forward now so we can re-unite them with the pig.The black rhinoceros is again on the verge of extinction due to unsustainable poaching in its native range. "It was a reasonably big porker and they actually had to hogtie it in the end, believe it or not, and now we've got it in our pound," he said. Shire of Denmark's community and regulatory director Greg Harwood said it took three people to hold the pig down before rangers arrived. "It certainly was putting a lot of a fight and squealing her head off, making a lot of noise, so it was quite entertaining."Īnother resident, who did not want to be identified, said traffic was held up on South Coast Highway and drivers were honking their horns, trying to get the pig to move off the street. She said the pig's adventure lasted for at least half an hour and spanned about two kilometres. Ms Stock said she was amused to see a sign in the shop's window advertising 'free range meats available' on the pizzas. "We followed it around the corner on to Strickland Street and managed to catch it in front of the pizza shop." "It was going down the middle of South Coast Highway on the wrong side of the road.
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