Animal behavior is central in shaping the realized diel light niche.
Animal behavior is central in shaping the realized diel light niche.
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DOI：
10.1038/s42003-022-03472-z
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发表时间：
2022-06-08
影响因子：
5.9
通讯作者：
中科院分区：
文献类型：
--
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动物在空间和时间上的行为是由感知的昼夜周期构成的。然而，这被动物自己在其栖息地内的运动所改变，创造了一个实现的地光生态位(RDLN)。为了了解RDLN，我们调查了浮游动物在春分前后在北极峡湾经历同步垂直迁移(DVM)所经历的光。我们揭示了一个高度受阻的光周期，与表面或静态深度相比，深度变化大约小两个数量级。RDLN还具有独特的特定波长的辐射周期。我们讨论了RDLN与动物适应和相互作用的相关性，以及对野外和实验室生物钟携带的影响。研究浮游动物在春分前后的北极峡湾经历同步Diel垂直迁徙所经历的光线，可以深入了解动物行为如何塑造实现的Diel Light生态位。
Animal behavior in space and time is structured by the perceived day/night cycle. However, this is modified by the animals’ own movement within its habitat, creating a realized diel light niche (RDLN). To understand the RDLN, we investigated the light as experienced by zooplankton undergoing synchronized diel vertical migration (DVM) in an Arctic fjord around the spring equinox. We reveal a highly dampened light cycle with diel changes being about two orders of magnitude smaller compared to the surface or a static depth. The RDLN is further characterized by unique wavelength-specific irradiance cycles. We discuss the relevance of RDLNs for animal adaptations and interactions, as well as implications for circadian clock entrainment in the wild and laboratory. Investigating the light as experienced by zooplankton undergoing synchronized diel vertical migration in an Arctic fjord around the spring equinox provides insights into how animal behavior shapes the Realized Diel Light Niche.
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