Western Chimpanzee numbers declined by more than 80 percent over the past quarter century

first_imgAgriculture, Animals, Apes, Biodiversity, Biodiversity Crisis, Bushmeat, Chimpanzees, Conservation, Critically Endangered Species, Endangered Species, Environment, Fragmentation, Great Apes, Habitat Loss, Hunting, Industrial Agriculture, Logging, Mining, Pet Trade, Poaching, Primates, Research, Wildlife, Wildlife Conservation Popular in the CommunitySponsoredSponsoredOrangutan found tortured and decapitated prompts Indonesia probeEMGIES17 Jan, 2018We will never know the full extent of what this poor Orangutan went through before he died, the same must be done to this evil perpetrator(s) they don’t deserve the air that they breathe this has truly upset me and I wonder for the future for these wonderful creatures. So called ‘Mankind’ has a lot to answer for we are the only ones ruining this world I prefer animals to humans any day of the week.What makes community ecotourism succeed? In Madagascar, location, location, locationScissors1dOther countries should also learn and try to incorporateWhy you should care about the current wave of mass extinctions (commentary)Processor1 DecAfter all, there is no infinite anything in the whole galaxy!Infinite stupidity, right here on earth.The wildlife trade threatens people and animals alike (commentary)Anchor3dUnfortunately I feel The Chinese have no compassion for any living animal. They are a cruel country that as we knowneatbeverything that moves and do not humanily kill these poor animals and insects. They have no health and safety on their markets and they then contract these diseases. Maybe its karma maybe they should look at the way they live and stop using animals for all there so called remedies. DisgustingConservationists welcome China’s wildlife trade banThobolo27 JanChina has consistently been the worlds worst, “ Face of Evil “ in regards our planets flora and fauna survival. In some ways, this is nature trying to fight back. This ban is great, but the rest of the world just cannot allow it to be temporary, because history has demonstrated that once this coronavirus passes, they will in all likelihood, simply revert to been the planets worst Ecco Terrorists. Let’s simply not allow this to happen! How and why they have been able to degrade this planets iconic species, rape the planets rivers, oceans and forests, with apparent impunity, is just mind boggling! Please no more.Probing rural poachers in Africa: Why do they poach?Carrot3dOne day I feel like animals will be more scarce, and I agree with one of my friends, they said that poaching will take over the world, but I also hope notUpset about Amazon fires last year? Focus on deforestation this year (commentary)Bullhorn4dLies and more leisSponsoredSponsoredCoke is again the biggest culprit behind plastic waste in the PhilippinesGrapes7 NovOnce again the article blames companies for the actions of individuals. It is individuals that buy these products, it is individuals that dispose of them improperly. If we want to change it, we have to change, not just create bad guys to blame.Brazilian response to Bolsonaro policies and Amazon fires growsCar4 SepThank you for this excellent report. I feel overwhelmed by the ecocidal intent of the Bolsonaro government in the name of ‘developing’ their ‘God-given’ resources.U.S. allocates first of $30M in grants for forest conservation in SumatraPlanet4dcarrot hella thick ;)Melting Arctic sea ice may be altering winds, weather at equator: studyleftylarry30 JanThe Arctic sea ice seems to be recovering this winter as per the last 10-12 years, good news.Malaysia has the world’s highest deforestation rate, reveals Google forest mapBone27 Sep, 2018Who you’re trying to fool with selective data revelation?You can’t hide the truth if you show historical deforestation for all countries, especially in Europe from 1800s to this day. WorldBank has a good wholesome data on this.Mass tree planting along India’s Cauvery River has scientists worriedSurendra Nekkanti23 JanHi Mongabay. Good effort trying to be objective in this article. I would like to give a constructive feedback which could help in clearing things up.1. It is mentioned that planting trees in village common lands will have negative affects socially and ecologically. There is no need to even have to agree or disagree with it, because, you also mentioned the fact that Cauvery Calling aims to plant trees only in the private lands of the farmers. So, plantation in the common lands doesn’t come into the picture.2.I don’t see that the ecologists are totally against this project, but just they they have some concerns, mainly in terms of what species of trees will be planted. And because there was no direct communication between the ecologists and Isha Foundation, it was not possible for them to address the concerns. As you seem to have spoken with an Isha spokesperson, if you could connect the concerned parties, it would be great, because I see that the ecologists are genuinely interested in making sure things are done the right way.May we all come together and make things happen.Rare Amazon bush dogs caught on camera in BoliviaCarrot1 Feba very good iniciative to be fallowed by the ranchers all overSponsored Article published by Mike Gaworeckicenter_img Research published in the American Journal of Primatology earlier this month finds that the overall Western Chimpanzee population declined by six percent annually between 1990 and 2014, a total decline of 80.2 percent.The main threats to the Western Chimpanzee are almost all man-made. Habitat loss and fragmentation driven by slash-and-burn agriculture, industrial agriculture (including deforestation for oil palm plantations as well as eucalyptus, rubber, and sugar cane developments), and extractive industries like logging, mining, and oil top the list.In response to the finding that the Western Chimpanzee population has dropped so precipitously in less than three decades, the International Union for the Conservation of Nature (IUCN) elevated the subspecies’ status to Critically Endangered on its Red List of Threatened Species. Research published in the American Journal of Primatology earlier this month finds that the overall Western Chimpanzee population has declined by more than 80 percent over the past quarter century.In order to arrive at an estimate of the chimp’s population numbers, an international team of scientists led by Hjalmar Kühl of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany used transect count data from 20 different sites that encompassed the nesting grounds for some 25,000 of the estimated 35,000 Western Chimpanzees remaining in the wild. The team writes that they “detected a significant negative trend” at 12 of the 20 sites.“The estimated change in the subspecies abundance, as approximated by nest encounter rate, yielded a 6% annual decline and a total decline of 80.2% over the study period from 1990 to 2014,” the researchers write. “This also resulted in a reduced geographic range of 20% (657,600 vs. 524,100 km2).”Western Chimpanzees (Pan troglodytes verus) are one of four commonly recognized subspecies of the great ape, the others being the Nigeria-Cameroon Chimpanzee (P. t. ellioti), the Central Chimpanzee (P. t. troglodytes), and the Eastern Chimpanzee (P. t. schweinfurthii). Each population faces different threats, thus a regional approach to the conservation of each subspecies is considered crucial.The main threats to the Western Chimpanzee are almost all man-made. Habitat loss and fragmentation driven by slash-and-burn agriculture, industrial agriculture (including deforestation for oil palm plantations as well as eucalyptus, rubber, and sugar cane developments), and extractive industries like logging, mining, and oil top the list.Poaching for bushmeat and the pet trade are also taking a toll on the chimps, while human-wildlife conflict is an issue even in or near protected areas. Women living near a national park in Guinea-Bissau, for instance, consider the chimpanzees themselves unfit for consumption, and blame the animals for malnutrition in their villages because of the damage they do to crops.Even infectious disease outbreaks that decimate the chimp’s numbers may be more frequent thanks to human activities. Homo sapiens and P. t. verus are, of course, closely related species, and as increasing human populations expand into Western Chimpanzee territory, they bring with them higher risks of disease transmission because the animals are coming into more frequent contact with humans and human waste.In response to the finding that the Western Chimpanzee population has dropped so precipitously in less than three decades, the International Union for the Conservation of Nature (IUCN) elevated the subspecies’ status to Critically Endangered on its Red List of Threatened Species.According to the IUCN, “Chimpanzees are completely protected by national and international laws in all countries of their range, and it is, therefore, illegal to kill, capture or trade in live Chimpanzees or their body parts.” But enforcement of these laws is generally weak, the IUCN adds.Some Western Chimpanzees are known to occur in national parks, but the majority — greater than 70 percent, the IUCN estimates — occur outside protected areas. That could mean that, in addition to the often intractable threats they’re already facing, the chimps could be facing even larger threats in the near future.The IUCN reports that there is significant overlap between Western Chimpanzee terrain and areas suitable for oil palm development in Western Africa, which is “likely to exacerbate population declines in coming years.” That’s especially true in Liberia, where 94.3 percent of areas of Western Chimp occurrence overlap with areas that might be targeted for oil palm plantations, and Sierra Leone, where there is 84.2 percent overlap. Those two countries, together with Guinea, are considered strongholds for the subspecies, which is already believed to be extinct in the wild in Benin, Burkina-Faso, and Togo. The chimp’s numbers are “in the low hundreds” in Ghana, Guinea-Bissau, and Senegal, the IUCN notes, while “Côte d’Ivoire has seen a catastrophic decline of about 90% of its Chimpanzee population.”The authors of the American Journal of Primatology study write that the IUCN plans to start updating a 2003 conservation action plan for Western Chimpanzees this year, with the intent of providing “a consensus blueprint for what is needed to save this subspecies.”The authors also included “a plea for greater commitment to conservation in West Africa across sectors” in their paper: “Needed especially is more robust engagement by national governments, integration of conservation priorities into the private sector and development planning across the region and sustained financial support from donors,” they wrote.Western Chimpanzee (Pan troglodytes verus). Photo by Christoph Würbel, licensed under CC BY-NC-SA 2.0.CITATIONHumle, T., Boesch, C., Campbell, G., Junker, J., Koops, K., Kuehl, H. & Sop, T. (2016). Pan troglodytes ssp. verus (errata version published in 2016). The IUCN Red List of Threatened Species: e.T15935A102327574. http://dx.doi.org/10.2305/IUCN.UK.2016-2.RLTS.T15935A17989872.en. Downloaded on 31 July 2017.Kühl, H. S., Sop, T., Williamson, E. A., Mundry, R., Brugière, D., Campbell, G., … & Jones, S. (2017). The Critically Endangered western chimpanzee declines by 80%. American Journal of Primatology. doi:10.1002/ajp.22681Follow Mike Gaworecki on Twitter: @mikeg2001FEEDBACK: Use this form to send a message to the author of this post. If you want to post a public comment, you can do that at the bottom of the page.last_img read more