Research

Dataset of seized wildlife and their intended uses

We compiled a dataset consisting of all the species involved in the illegal wildlife trade along with the reason (i.e., use-type) they were being traded. In total, the dataset includes c. 4.9k distinct taxa representing c. 3.3k species and contains c. 11k taxa-use combinations from 110 unique use-types. Our dataset can be used to conduct large-scale broad searches of the Internet to find illegally traded wildlife.

Reptile smuggling is predicted by trends in the legal exotic pet trade

We found a pattern between US reptile trade and smuggling of live reptiles to Australia. Almost all species smuggled to Aus are legal in US trade and are popular We compared illegal smuggling of reptiles into Australia to the legal pet trade of reptiles in the US. We provide the first empirical risk watch-list for desirable reptile species being trafficked into Australia. Our findings give insight into the drivers of illegal wildlife trade and our approach provides a framework for anticipating future trends in wildlife smuggling.

Text classification to streamline online wildlife trade analyses

The Internet can be vast source of data for the wildlife trade. However, data collected from the Internet is often numerous and messy, making data cleaning a task the requires a lot time and effort. Here, we tested if text classification can be used to speed up the process of data cleaning in relation to online data collected on the wildlife trade. We found that text classification models can predict with great accuracy relaxant advertisements, including the taxonomy of relevant species, using the text found in online advertisements. We recommend using text classification as a method to make data cleaning more efficient. Future efforts should try to pair text classification with image classification for improved efficiency.

Strengthening protection of endemic wildlife threatened by the international pet trade: The case of the Australian shingleback lizard

Australian reptiles face serious conservation threats from illegal poaching fuelled by international demand and the exotic pet trade. We investigated the extent of illegal trade in a charismatic Australian lizard: the shingleback, also known as the bobtail or sleepy lizard. Using government records, media reports, and online advertisements, we found clear evidence that many shinglebacks have been illegally poached from the wild and are smuggled overseas to be traded as pets. Not only are our findings concerning from a conservation and animal welfare perspective, but they also highlight a major legal loophole. Once shinglebacks are illegally smuggled out of Australia, there are no legal actions available to prevent or regulate overseas trade. To address this, we recommend using an existing and under-utilised legislative tool (Appendix III of CITES, an international treaty) to protect Australian shinglebacks and help to curtail global trade.

The International Vertebrate Pet Trade Network and Insights from US Imports of Exotic Pets

The international trade in exotic vertebrate pets provides key social and economic benefits but also drives associated ecological, ethical, and human health impacts. Here, we represent and review the structure of the pet trade as a network composed of different market actors (nodes) and trade flows (links). As a case study of how data-informed networks can realize this goal, we quantified spatial and temporal patterns in pets imported to the United States. Our framework and case study illustrate how network approaches can help to inform and manage the effects of the growing demand for exotic pets.

Managing propagule pressure to prevent invasive species establishments: propagule size, number, and risk–release curve

Keeping propagule pressure low can reduce the probability a non-native species will establish in a new location. Here we develop a mathematical framework that can determine the required reduction in levels for propagule size and number (representative of management actions) to maintain a target establishment probability. Our tool can serve to guide the development of new invasive species management plans in a transparent and quantitative manner. Together with information on the costs associated with approaches to reducing propagule pressure, our tool can be used to identify the most cost‐effective approach to prevent invasive species establishments.

A guide to using the Internet to monitor and quantify the wildlife trade

The internet is a vast source of wildlife trade data. Here, we present an accessible guide for Internet‐based wildlife trade surveillance, which uses a repeatable and systematic method to automate data collection from relevant websites. Our guide is adaptable to the multitude of trade‐based contexts including different focal taxa or derived parts, and locations of interest.

Australia’s wish list of exotic pets: biosecurity and conservation implications of desired alien and illegal pet species

The live pet trade is a major pathways for invasive species. Australia imposes tough regulations against the trade of non-native animals as pets. However, there exists an illegal trade of these animals in Australia that threatens biosecurity. Here, we used government records of enquiries from the general public to assess the characteristics of species that are likely desired as pets. We found that desired species are more likely to invasive species elsewhere or at risk of extinction due to trade. Our findings suggest that in absence of strict laws, an unregulated pet trade would threaten Australian biosecurity and global conservation efforts.

When pets become pests: the role of the exotic pet trade in producing invasive vertebrate animals

The exotic pet trade is a multi-billion dollar industry involving thousands of animal species. Research has historically focused only the conservation and disease risks, however the risk of pets becoming invasive species has been overlooked. We show this trade is now the leading contributor of non-native establishments and invasions worldwide among vertebrates. We highlight areas of future research/policy changes needed to avoid more invasive pets in the future.

Pet problems: Biological and economic factors that influence the release of alien reptiles and amphibians by pet owners

The trade of non-native animals as pets the main pathway for new invasive species if they become released into the wild. Here, we examined the trade in non-native reptiles and amphibians as pets in the United States. We found c. 1,700 species traded in the past two decades of which 126 species have been recorded as released in the wild. Using machine learning models, we show that larger-bodied, longer-lived species, who sold for cheaper prices were more likely to have been released. We propose policies and education focused on species with these characteristics in order to curb the impacts of new invasive species that originated as pets.

High annual survival in infected wildlife populations may veil a persistent extinction risk from disease

White-nose syndrome (WNS) has caused catastrophic declines in some bat species, while others appear less impacted. We conducted a mark–recapture study of federally endangered Indiana bats (Myotis sodalis) during 2011–2016 and found survival had decreased by around 4 percentage points. We ran population models based on new survival data and results suggested there will be future population declines for the Indiana bat.

A Novel Tool for Making Policy Recommendations Based on PVA: Helping Theory Become Practice

Mathematical models that inform conservation efforts always have underlying uncertainty. We show that in many applied cases, this uncertainty results in a non-trivial probability that management action will have no benefit to conservation. We encourage future use of population viability analysis (PVA) to explicitly account for this uncertainty when considering whether or not to implement management actions.