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The threats posed by the pet trade in alien terrestrial invertebrates in South Africa
Journal for Nature Conservation ( IF 2.2 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.jnc.2020.125831
Takalani Nelufule , Mark P. Robertson , John R.U. Wilson , Katelyn T. Faulkner , Catherine Sole , Sabrina Kumschick

Abstract The pet trade has been a major pathway for the introduction of vertebrate invaders, but little is known about its role in invertebrate invasions. Here we assess the trade in terrestrial invertebrates (excluding spiders) in South Africa and the potential of this trade to result in biological invasions and impacts. Pet stores, websites, and expositions were visited, and a list of the taxa traded was compiled. DNA barcoding was used to determine if the species were correctly identified in the trade. Information on invasion history and impact elsewhere was used to assess the potential for species to become invasive and have impact in South Africa. We found 53 alien terrestrial invertebrate taxa that were traded, although only 36 of these matched a valid species name. Of 11 species tested using DNA barcoding nine were correctly identified. Species accumulation curves were produced, but did not reach an asymptote, suggesting there are many species in the trade that were not recorded. The most common species were used as food for pets, rather than as pets themselves. None of the species were reported to be invasive elsewhere, and few had records of causing negative impacts (the exception being moderate impacts to human health caused by venomous scorpions). Therefore, there is little evidence that the invertebrates traded pose a significant threat to South Africa. However, given uncertainties in which taxa are traded and the lack of data on invasiveness and impact, there might be a significant invasion debt. We recommend continued monitoring and engagement with the industry.

中文翻译:

南非外来陆生无脊椎动物的宠物贸易构成的威胁

摘要 宠物贸易一直是引入脊椎动物入侵者的主要途径,但对其在无脊椎动物入侵中的作用知之甚少。在这里,我们评估了南非陆生无脊椎动物(不包括蜘蛛)的贸易以及这种贸易导致生物入侵和影响的可能性。参观了宠物商店、网站和博览会,并编制了一份交易类群清单。DNA 条形码用于确定该物种是否在贸易中被正确识别。关于入侵历史和其他地方影响的信息被用来评估物种在南非成为入侵和产生影响的可能性。我们发现了 53 种被交易的外来陆生无脊椎动物类群,尽管其中只有 36 种与有效的物种名称匹配。在使用 DNA 条形码测试的​​ 11 种物种中,有 9 种被正确识别。产生了物种积累曲线,但没有达到渐近线,这表明交易中有许多物种没有被记录。最常见的物种被用作宠物的食物,而不是宠物本身。据报道,这些物种都没有在其他地方入侵,也很少有造成负面影响的记录(有毒蝎子对人类健康造成的中度影响除外)。因此,几乎没有证据表明交易的无脊椎动物对南非构成重大威胁。然而,鉴于分类群交易的不确定性以及缺乏关于入侵和影响的数据,可能存在重大入侵债务。我们建议继续监控并与行业接触。表明贸易中有许多物种没有被记录。最常见的物种被用作宠物的食物,而不是宠物本身。据报道,这些物种都没有在其他地方入侵,也很少有造成负面影响的记录(有毒蝎子对人类健康造成的中度影响除外)。因此,几乎没有证据表明交易的无脊椎动物对南非构成重大威胁。然而,鉴于分类群交易的不确定性以及缺乏关于入侵和影响的数据,可能存在重大入侵债务。我们建议继续监控并与行业接触。表明贸易中有许多物种没有被记录。最常见的物种被用作宠物的食物,而不是宠物本身。据报道,这些物种都没有在其他地方入侵,也很少有造成负面影响的记录(有毒蝎子对人类健康造成的中度影响除外)。因此,几乎没有证据表明交易的无脊椎动物对南非构成重大威胁。然而,鉴于分类群交易的不确定性以及缺乏关于入侵和影响的数据,可能存在重大入侵债务。我们建议继续监控并与行业接触。很少有造成负面影响的记录(有毒蝎子对人类健康造成的中度影响除外)。因此,几乎没有证据表明交易的无脊椎动物对南非构成重大威胁。然而,鉴于分类群交易的不确定性以及缺乏关于入侵和影响的数据,可能存在重大入侵债务。我们建议继续监控并与行业接触。很少有造成负面影响的记录(有毒蝎子对人类健康造成的中度影响除外)。因此,几乎没有证据表明交易的无脊椎动物对南非构成重大威胁。然而,鉴于分类群交易的不确定性以及缺乏关于入侵和影响的数据,可能存在重大入侵债务。我们建议继续监控并与行业接触。
更新日期:2020-06-01
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