Motion‐triggered laser photography shows burrowing crayfish activity patterns

1. Burrowing crayfish represent 15% of total crayfish species and 32% of imperiled species. Few life history studies exist for these species and more information is needed regarding their ecology, population status, distribution, and biogeography for effective conservation efforts. Challenges to gaining such information include sampling difficulty and small sample sizes. Collection efforts may be more efficient if activity patterns can be identified for species of interest. The goal of our study was to assess specific environmental indicators of burrowing crayfish activity patterns.

2. We evaluated activity patterns of two primary burrowing crayfish species, Lacunicambarus erythrodactylus Simon & Morris, 2014 and Procambarus holifieldi Schuster, Taylor & Adams, 2015 using laser-triggered digital photography for one-year periods in the Bogue Chitto Creek floodplain, Dallas County, Alabama, U.S.A. We predicted that activity would be related to time of day, season, groundwater d...

1. 穴居小龙虾占小龙虾总物种数的15%，占濒危物种数的32%。针对这些物种的生活史研究较少，为有效开展保护工作，需进一步了解其生态、种群状态、分布及生物地理学信息。获取此类信息面临的挑战包括采样困难和样本量小。若能确定目标物种的活动模式，采集工作的效率或可提升。本研究旨在评估穴居小龙虾活动模式的特定环境指标。

2. 我们采用激光触发数码摄影技术，在美国阿拉巴马州达拉斯县的博盖奇托溪泛滥平原，对两种主要穴居小龙虾物种——Lacunicambarus erythrodactylus Simon & Morris, 2014和Procambarus holifieldi Schuster, Taylor & Adams, 2015——的活动模式进行了为期一年的评估。我们推测，其活动与时段、季节、地下水d...相关。