Alpine plant species are particularly vulnerable to climate change. Temperature fluctuations are projected to be most severe at high elevations. Even small shifts in temperature have major consequences on phenology, reproduction, and community composition. Early life stages are arguably the most important processes in the fitness of an individual plant and the dynamics and persistence of plant populations. These initial developmental stages are expected to be more vulnerable to changes in climate than adult life stages. To understand how early life stages of alpine plant species will respond to warming temperatures, seeds and seedlings of two species were exposed to three different temperature regimes. Temperatures were based on current and projected conditions under low and high emission scenarios. Two rare alpine species performed better under warmer temperatures at both the germination and seedling stages. The results show that early life stages of alpine plants may not be at high risk from warming temperatures; however, there are many other shifting climatic factors to consider, resulting from climate change beyond temperature alone.

中文翻译：

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高山物种能耐热吗？温度升高对生命早期阶段的影响

高山植物物种特别容易受到气候变化的影响。预计高海拔地区的温度波动最为严重。即使温度的微小变化也会对物候、繁殖和群落组成产生重大影响。早期生命阶段可以说是植物个体的适应性以及植物种群的动态和持久性中最重要的过程。预计这些初始发育阶段比成年生命阶段更容易受到气候变化的影响。为了了解高山植物物种的早期生命阶段对气温升高的反应，将两个物种的种子和幼苗暴露在三种不同的温度条件下。温度基于低排放和高排放情景下的当前和预测条件。两种稀有的高山物种在较高的温度下在发芽和幼苗阶段都表现得更好。结果表明，高山植物的早期生命阶段可能不会受到气温升高的高风险；然而，除了温度之外，还有许多其他气候变化因素需要考虑，这些因素是由气候变化引起的。