Resting egg production is considered the most common form of dormancy in aquatic invertebrates. Given that many taxa at least partially terminate resting egg state using environmental cues, knowledge on environmental drivers of hatching success is important, particularly within the context of climate change and environmental degradation. Fairy shrimp (anostracans) are temporary wetland specialists that are reliant on resting egg production for population persistence. Temporary wetlands are common in many arid regions projected to experience increases in temperature, and in areas often compromised by human‐mediated activities. In this study, we assessed the combined effects of light and temperature on the hatching success of Streptocephalus cafer (Anostraca) dormant eggs from temporary wetlands in an arid environment. Both temperature and light altered hatching success, with emergent effects evident. Light caused a significant threefold increase in hatching success overall, while temperature effects were non‐linear, with hatching optimised at 27°C, and especially under light conditions. These results are discussed within the context of shifting climates and disturbances to temporary wetland ecosystems.

中文翻译：

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光和温度对链球菌（Brepchiopoda：Anostraca）静息卵孵化成功的紧急影响

静息产卵被认为是水生无脊椎动物最常见的休眠形式。考虑到许多分类单元至少使用环境提示部分终止了静止的卵状态，因此，关于孵化成功的环境驱动因素的知识很重要，尤其是在气候变化和环境退化的背景下。仙女虾（金龟子）是临时湿地专家，依靠静息卵的生产来维持种群的持久性。临时湿地在许多预计会出现温度升高的干旱地区，以及在人类介导的活动经常受到影响的地区都很普遍。在这项研究中，我们评估了光和温度对链球菌孵化成功的综合影响（Anostraca）在干旱环境中来自暂时湿地的休眠卵。温度和光照均会改变孵化成功率，并且会出现明显的效果。总体而言，光照使孵化成功率显着提高了三倍，而温度影响是非线性的，孵化在27°C下进行了优化，尤其是在光照条件下。在将气候和干扰转移到临时湿地生态系统的背景下讨论了这些结果。