Jordi Janssen

Monitor Conservation Research Society

The commercial captive breeding of wildlife is often seen as a potential conservation tool to relieve pressure off wild populations, but laundering of wild-sourced specimens as captive-bred can seriously undermine these and provide a false sense of sustainability. Indonesia has been at the centre of such controversy, therefore we examine Indonesia'...

The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) aims to ensure that international trade does not further endanger species already threatened by trade. While the scale of legal trade in CITES listed species is relatively well documented, trade in non-CITES listed species is usually only collected when it c...

The Convention on International Trade in Endangered Species of Wild Flora and Fauna (CITES) aims to ensure that the trade in wild fauna and flora does not threaten the survival of species. Increased protection and regulation, including a potential CITES listing, can unintentionally cause an increase in the value of some species amongst collectors,...

Documentation of international trade in non-CITES species is generally poor. As a result, illegal trade in nationally-protected non-CITES species is often hard to detect. To show that such illicit trade nevertheless occurs, this study has analysed import and export records of the Giant Blue-tongued Skink Tiliqua gigas for the European Union (EU) an...

Reptiles are among the most intensively harvested and traded species groups globally. The global trade of reptiles includes the trade of live reptiles as pets, as well as the trade of reptiles or their parts for use in traditional medicine, for reptile skins, or for human consumption. Reptiles have been widely used to treat a large variety of ailme...

The recent COVID-19 pandemic presented the world with a crisis of incredible scale and made wildlife markets the focal point of authorities. Scientific literature on COVID-19 and wildlife trade overwhelmingly focused on the zoonotic risks of wildlife markets. As many physical marketplaces for wildlife were faced with closure or restrictions to curb...

This photographic identification guide to 225 lizard species most commonly seen in mainland and maritime Southeast Asia (covering Brunei Darussalam, Cambodia, Indonesia, Laos, Myanmar, Peninsular and east Malaysia, Thailand, Timor-Leste, Singapore, the Philippines and Vietnam) is perfect for resident and visitor alike. High quality photographs from...

The global trade in wildlife affects most major taxonomic groups (Fukushima et al., 2020; Scheffers et al., 2019). Managing wildlife trade requires an accurate understanding of the dimensions of trade and its impacts (positive, neutral, or negative) on the conservation of native wildlife populations. We are concerned that assertions made by Natusch...

The Philippine Sailfin Lizard (Agamidae: Hydrosaurus pustulatus) is a nationally protected Philippine endemic species. It is threatened by habitat destruction, pollution and overexploitation for the domestic pet trade, yet less is known about the international component of the trade. Here we investigate the international trade in Hydrosaurus spp. (...

Our knowledge of the conservation status of reptiles, the most diverse class of terrestrial vertebrates, has improved dramatically over the past decade, but still lags behind that of the other tetrapod groups. Here, we conduct the first comprehensive evaluation (~92% of the world's ~1714 described species) of the conservation 1 Joint senior authors...

Millions of reptiles are both legally and illegally traded annually. However, the number of species being exploited for the live animal trade far exceeds any other demand, such as for use in the exotic leather trade. The huge diversity and abundance of reptiles traded globally is concerning as commercial consumer demand can result in unsustainable...

The Philippine Forest Turtle Siebenrockiella leytensis is a critically endangered species endemic to the Palawan group of islands. Evidence of this species breeding in captivity is very scarce and limited to two documented events. Although strictly protected, illegal trade seems to continue with sightings of this species in China, USA, and Europe....

Illegal trade in wildlife in Indonesia is rampant, and includes many little-known species, such as the Sulawesi Bear Cuscus Ailurops ursinus. Too often the trade in less charismatic species goes unnoticed, with many being pushed towards extinction. Sadly, few, if any, effective interventions are put in place to prevent further declines. The demand...

Rare or newly discovered species are attractive targets for poaching as they often command a high value in the international market. Endemic species often have a very restricted range, making them extremely vulnerable to stochastic events and human activities, including poaching. Previous studies have shown that several species endemic to the Nanse...

The Union Island Gecko Gonatodes daudini is a Critically Endangered gecko, endemic to Union Island, Saint Vincent and the Grenadines. This species is occurring in an area less than 1 km² in one of the Grenadines only remaining stands of mature forest. Illegal trade in this species was first reported in 2011 and over-harvesting for the international...

Reptiles are one of the most heavily harvested terrestrial faunas in the world, with varanoid lizards (Varanus and Lanthanotus) as some of the most sought-after reptiles. Where previous studies have looked solely at official import and export records, such records provide little information on illegal trade in varanoid lizards. In the present study...

Endemic species can be especially vulnerable to overexploitation due to their restricted range and trade can quickly become a significant threat. Yet, trade in endemic species is not well document as many endemic species lack domestic and/or international trade regulations. Viet Nam is home to approximately 470 reptile species, 136 of which are con...

Japan is the fourth-largest country in the world by import values of reptiles and has a significant reptile pet market after Europe and US. The physical market survey conducted by TRAFFIC in Tokyo, Kanagawa, and Osaka on February 2017 discovered that 5,491 reptiles of 606 species/subspecies were traded. Of all these reptiles imported from across th...

Nature-based tourism is one of the fastest-growing tourism sectors in many parts of the world. Besides positive impacts on local economies and human health, nature-based tourism can have a negative impact, especially on wildlife. Several studies suggested that wildlife experience human disturbance as a form of predation risk. While tourism is incre...