Crowdsourcing can be a useful tool for the early detection of invasive species. Invasive wild pigs (Sus scrofa) have been reported in Ontario, Canada. We compared trends in reporting frequency of wild pig sightings to trends in media events that included directions for the public on where to submit their wild pig sightings. We found that media events occurring on the same week, and in up to two weeks before the sighting was reported significantly increased the number of wild pig reports we received. Our findings suggest that media can be used to increase participation by the public. Because of this relationship, our findings also imply that reporting frequency alone cannot accurately index real changes in wild pig numbers—participants were more likely to report sightings after they had been exposed to relevant media, and spikes in the number of reports tracked our outreach efforts. Despite this limitation, reports of wild pig sightings from community members remain a cost-effective tool to detect low-density invasive species across large regions, and participation in the program can be increased with periodic news media and social media blitzes.

众包可以是早期发现入侵物种的有用工具。外来入侵猪（Sus scrofa）已在加拿大安大略省进行了报道。我们将野猪发现的报道频率趋势与媒体事件的趋势进行了比较，媒体事件包括向公众指示野猪发现的方向。我们发现媒体事件发生在同一周，并且在报道目击事件之前的两周之内，大大增加了我们收到的野猪报道的数量。我们的发现表明，可以利用媒体来增加公众的参与度。由于这种关系，我们的研究结果还暗示，仅报告频率不能准确地索引野猪数量的真实变化-参与者在暴露于相关媒体后更有可能报告目击事件，并且报告数量的高峰追踪了我们的推广工作。尽管有这个限制，