When most people think of illegal wildlife trade, the first images that spring to mind are likely to be African elephants killed for their ivory, rhino horns being smuggled for medicine, or huge seizures of pangolins. But there is another huge global wildlife trade that is often overlooked, despite it involving thousands of species that are often traded illegally and unsustainably.
Orchids are perhaps best known for the over one billion mass-market pot plants traded internationally each year, but there is also a large-scale commercial trade of wild orchids for food, medicine and as ornamental plants. This is despite the fact that all species of orchids are listed by the Convention on the International Trade in Endangered Species of Wild Flora and Fauna (CITES), which regulates and monitors the commercial trade of wild plants and animals that may be threatened by exploitation.
Whilst CITES discussions often focus on elephants and other charismatic mammals, orchids make up over 70% of all of the species listed by the Convention.
To highlight the problems associated with the illegal and unsustainable orchid trade, a review paper was published recently by an international team of authors from the IUCN Orchid Specialist Group’s Global Trade Programme. This paper provides the first global overview of the orchid trade, drawing attention to not only its diversity but also the conservation problems associated with it. For example, the trade includes species traded as:
Various different orchid species are used in traditional medicines in several countries and on a lot of different scales, including on a commercial level in some cases. For example, the stems and tubers of several species are used in Traditional Chinese Medicine, in products to improve general health condition as well as in medicines for specific problems. Similarly, South Asian Ayurvedic medicine uses at least 94 species of orchids in various medicinal preparations. In addition, orchids are used globally in various health products, including in bodybuilding supplements sold in Europe and the USA.
Many people will have eaten orchids without realising, due to the countless products in international trade that contain the seeds of artificially propagated Vanilla orchids. However, this legal trade is only one example of orchids being used as ingredients in food and drink. One example is the trade in chikanda, a cake made from the ground tubers of terrestrial orchids and consumed in several countries in Central and East Africa. Another product made from the ground tubers of terrestrial species is salep, which is used as an ingredient in hot drinks and ice cream and consumed mainly in Turkey and neighbouring countries.
Orchids have been grown as ornamental plants for several thousand years, most commonly for their attractive flowers but also for their scent, patterned leaves or unusual growth habit. In Victorian Europe the ornamental trade was characterised by obsessive collectors suffering from orchidelirium (also known as orchid fever) that led them to pay huge sums for rare or unusual species. Whilst the majority of ornamental orchids traded internationally today are cut flowers and plants grown in greenhouses, there is still a large-scale commercial trade in wild, often illegally-collected plants. Harvesting for illegal trade is a particular problem in Southeast Asia, where species such as Canh’s slipper orchid (Paphiopedilum canhii) have been driven to extinction due to collection for international trade.
Whilst diverse, all of these trades have been linked to over-harvesting, causing decline and loss of species from the wild. In addition, the nature of the trade presents significant challenges to conservationists trying to regulate and monitor the trade. These include the direct threat from many different types of illegal harvest and trade, rapidly shifting patterns of consumer and supplier behaviour, the huge number of orchid species in trade that make identification difficult, and the fact that very little is known about the ecology of traded species, or how threatened they are in the wild. Finally, whilst the illegal trade in animals may get a lot of attention from the public, from conservation organisations and from policy makers, plants are often not seen as a priority, resulting in little funding being devoted to research or action to address the unsustainable trade
To address these challenges, the authors of the paper recommend that the conservation community should focus on conducting further research on trade dynamics and the impacts of collection for trade; strengthening the legal trade of orchids whilst developing and adopting measures to reduce illegal trade; and raising the profile of orchid trade among policy makers, conservationists and the public.
This opinion piece originally appeared on the OUP Blog on 10 March 2018.