Orthosia simulation experiment data

Consequences of climate change-driven shifts in the relative timing of spring activities of interacting species are insufficiently understood, especially for insects. We use a controlled experiment which simulates a trophic mismatch scenario in which lepidopteran larvae predominately feed on older leaves due to foliage developing faster than larvae growth rates. As a case study our experiment uses Orthosia cerasi, which is a widespread but declining woodland moth whose UK declines appear to be driven by warming temperatures. In the control experiment larvae are fed young oak Quercus robur leaves (bud burst stages six and seven), whilst in the treatment newly emerged larvae are fed young leaves but then gradually transition to feed on older leaves (post bud burst stage seven). We assess impacts on duration of the larval stage, pupal size and overwintering duration and survival. Larvae in the phenological mismatch treatment had a longer larval period, and smaller and lighter pupae. Larval...气候变化驱动的相互作用物种春季活动时序相对偏移所产生的后果尚未得到充分认知，尤以昆虫类群为甚。本研究采用对照实验，模拟了营养时序错配（trophic mismatch）情景：在此情景中，因植物叶片发育速率快于幼虫生长速率，鳞翅目幼虫主要取食成熟老叶。本实验以广泛分布却种群衰退的林地蛾类暗脉粘夜蛾（Orthosia cerasi）为案例研究对象，该物种在英国的种群衰减似乎由气温变暖所驱动。对照组中，幼虫被喂食幼嫩的夏栎（Quercus robur）叶片（芽萌动阶段6至7期）；处理组则为先让初孵幼虫取食幼叶，随后逐渐过渡至取食成熟老叶（芽萌动阶段7期之后）。本研究评估了该处理对幼虫期时长、蛹体大小以及越冬时长与存活率的影响。处于物候错配（phenological mismatch）处理组的幼虫，其幼虫期更长，蛹体更小且更轻。幼虫……