Poaching is on the rise — most illegal ivory comes from recently killed elephants

Radiocarbon dating of ‘antique’ ivory being sold in European countries reveals that many are not antique at all. By Megan Shersby. Ivory items bought from a range of countries in Europe have been tested by the environmental group Avaaz and exposed to be modern ivory. The ivory pieces were all advertised with either no date or predating , but more than 47 per cent were found to be from after this year. The date of is key as ivory is considered to be antique if it originates before then, and can be traded. A sample of ivory items were bought via antique dealers and private sellers, and then dated at the University of Oxford, to test the statements from European officials that there is no evidence of the legal ivory trade providing cover for illegal ivory. When dating items, researchers are able to identify when the ivory was grown by the elephant, rather than when the animal was killed.

Study: Radiocarbon dating finds illegal ivory in EU markets

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Radiocarbon dating: radioactive carbon decays to nitrogen with a half-life of years. In dead material, the decayed 14C is not replaced and its concentration in the object decreases slowly. To obtain a truly absolute chronology, corrections must be made, provided by measurements on samples of know age. The most suitable types of sample for radiocarbon dating are charcoal and well-preserved wood, although leather, cloth, paper, peat, shell and bone can also be used. Because of the somewhat short half-life of 14C, radiocarbon dating is not applicable to samples with ages greater than about 50, years, because the remaining concentration would be too small for accurate measurement.

Thermoluminescence dating: this method is associated with the effect of the high energy radiation emitted as a result of the decay or radioactive impurities. Because of the half-lives of U, nd, and 40K are very long, their concentrations in the object, and hence the radiation dose they provide per year, have remained fairly constant. The most suitable type of sample for thermoluminescence dating is pottery, though the date gotten will be for the last time the object was fired.

Application of this method of age determination is limited to those periods of pottery and fired clay availability from about BC to the present. Beta Analytic, Inc. University Branch S. International Chemical Analysis, Inc.

Illegal ivory mostly from recent elephant killings

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Carbon Test Determines Whether A Piece Of Ivory Is Legal Or Illegal

Credit: Getty Images. More than 90 percent of ivory in large, seized shipments comes from elephants that died less than three years before, research shows. Scientists came to the conclusion by combining a new approach to radiocarbon dating for ivory samples with genetic analysis tools that gave conservationists a picture of when and where poachers are killing elephants.

A scientific study of ivory traded by dealers across Europe proves that the sales are illegal, according to the activist groups that released the.

The overwhelming majority of seized ivory from Africa comes from elephants killed in the past three years. The stark findings were reported by scientists who used radiocarbon dating on samples from elephant ivory specimens seized as part of 14 different operations from through The last couple of years saw a dramatic surge in traded ivory on the black markets, most of it destined to Asian markets. We can tell how many elephants get killed thanks to modern surveillance measures and algorithms that extrapolate data.

Using helicopters and cameras, conservationists and local authorities scour the savanna and count elephants one by one. Today, only , are still alive in the 15 African countries that they surveyed, down from over one million in Some have gone as far as suggesting African authorities are collaborating with criminal gangs by releasing seized ivory held in government stockpiles into the black market.

While this is horrific in itself, if true it would mean that the scale of poaching is not as drastic as ivory trading patterns suggest. Thure Cerling, a professor at the University of Utah, and his colleagues, used radiocarbon dating to determine the age of seized ivory and test nefarious hypotheses like African officials being in cahoots with criminals. The method involves measuring the ratio between normal carbon C and its isotope C All livings things, be them plants or animals, have C in their tissue and the previously mentioned ratio is the same at the moment of death as every other living thing.

Elephant poachers are hard at work in Africa, and carbon dating proves it

All rights reserved. The new requirements do not apply to cut or carved ivory, nor do they apply to the tons of tusks already stockpiled. Starting July 1, anyone in Japan who wishes to register and sell a whole elephant tusk must first prove its age through carbon dating. More than that, officials believe that carbon dating will prove to be so burdensome as to dissuade private citizens—who hold untold numbers of tusks—from selling their ivory to dealers.

Elephant poaching is alive and well. Scientists examining seized shipments of ivory from Africa have found that 90% came from elephants that.

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Dating ivory crochet hooks

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Request PDF | Radiocarbon dating of ivory: Potentialities and limitations in forensics | The determination of the age of elephant ivory is a crucial aspect in the​.

A Hong Kong court has convicted two people of illegally possessing ivory chopsticks after radiocarbon dating proved the items were produced after and therefore unlawful, the government said Wednesday. Domestic trade in ivory imported legally into Hong Kong before that year is not against the law if the seller has a government licence. But the pair were convicted and fined after the dating process established the ivory was obtained after While environmental groups welcomed the use of forensic evidence, they condemned the light penalty.

Hong Kong, a key hub for the ivory trade and manufacturing, announced plans last year to phase out sales completely by But the government of neighbouring mainland China will ban all ivory trade and processing by the end of this year, a move hailed by conservationists. Conservationists estimate that more than 20, elephants were killed for their ivory in , with similar tolls in previous years.

Metamorphism and U-P Dating of the SASCA domain (South-West Ivory coast)

The age determination of elephant ivory provides necessary and crucial information for all criminal prosecution authorities enforcing the Convention on International Trade in Endangered Species of Wild Fauna and Flora. The knowledge of the age of ivory allows to distinguish between pre-convention, hence legal material and ivory deriving from recent, illegal poaching incidents. The commonly applied method to determine the age of ivory is radiocarbon dating in the form of bomb pulse dating, which however will fade out soon.

This work provides an enhancement of the radiocarbon dating method by supplementary determination of the isotope profile of Sr and the two thorium isotopes Th and Th.

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Nearly 25 years after an international ban was placed on ivory, African elephants are being slaughtered at a rate that could bring about their extinction this century. By allowing the trade of ivory acquired before to continue, the ban put the burden on law enforcement to distinguish between legal ivory and poached. Now, a new method for dating elephant tusks, described in the latest issue of the Proceedings of the National Academy of Sciences , could make it easier to enforce the ivory ban and save the African elephant from extermination say researchers.

The method might also be applied to endangered rhinoceroses and other wildlife. In the highly-regulated market for legal ivory, finding tusks for scientific research is not easy. In the lab, the researchers measured radiocarbon levels at the base of each tusk to independently calculate when the elephants died.

The legal sale of ivory is actually the trade of illegal and poached ivory as well

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Request PDF | Dating ivory by determination of 14C, 90Sr and /Th | A method is described to determine the time of death of elephants. This is.

There are many misunderstandings about the use of ivory in antiques and we believe that the information given below will help provide more clarity. The poaching of elephants in the wild and the threat that this causes to the survival of the species is a very serious matter. We should make it absolutely clear that BADA members deplore the illicit market in ivory and are fully supportive of targeted and proportionate measures aimed at eradicating it.

It is not quite as simple as this, because most of the objects found in the UK today made from or incorporating elements of ivory were created many years ago and are part of our shared cultural heritage. These historical items are not derived from recently-poached ivory. Elephant ivory in large and small quantities has been incorporated into cultural artefacts for thousands of years.

As long ago as BC workshops in Mycenae were producing ivory boxes and furniture inlaid with ivory for export to the Greek mainland. In Egypt during the reign of Tutankhamun it was used as inlay in luxury goods, such as chests or head supports.

90% of ivory comes from recently killed elephants

University of Utah researchers developed a new weapon to fight poachers who kill elephants, hippos, rhinos and other wildlife. By measuring radioactive carbon deposited in tusks and teeth by open-air nuclear bomb tests, the method reveals the year an animal died, and thus whether the ivory was taken illegally. It was published online the week of July 1 in the journal Proceedings of the National Academy of Sciences. Not only can the method help wildlife forensics to combat poaching, but “we’ve shown that you can use the signature in animal tissues left over from nuclear weapons testing in the atmosphere to study modern ecology and help us learn about fossil animals and how they lived,” says Cerling, a distinguished professor of geology and geophysics, and biology at the University of Utah.

Last week, just days before Central Park’s big Ivory Crush, a Lamont-Doherty geochemist and his colleague sawed off samples of the confiscated ivory for DNA​.

We use cookies and other tracking technologies to improve your browsing experience on our site, show personalized content and targeted ads, analyze site traffic, and understand where our audiences come from. To learn more or opt-out, read our Cookie Policy. That means that poaching — one of the biggest threats to elephants — is widespread and may be a bigger problem than we think. Poaching has been soaring in the past decade. A recent report said that poachers killed off nearly a third of the savannah elephants in Africa from to , leaving only about , of the animals.

There have been many attempts to protect elephants: one long-standing poaching ban makes it illegal to trade ivory internationally if the elephant was killed after In the United States, there is already a near-complete ban on ivory , but other countries have not enacted domestic bans yet. In China, where ivory is culturally valued and the black market is rampant, politicians have promised to crack down on illegal trade, but many are skeptical of this promise. By measuring how much C is in the tusks, the researchers were able to figure out how old the elephant tusks are.

Ivory smuggling. Learn: haul, market value, seizure, tusks, transported