E-scape: consumer-specific landscapes of energetic resources derived from stable isotope analysis and remote sensing

Energetic resources and habitat distribution are inherently linked. Energetic resource availability is a major driver of the distribution of consumers, but estimating how much specific habitats contribute to the energetic resource needs of a consumer can be problematic.

We present a new approach that combines remote sensing information and stable isotope ecology to produce maps of energetic resources (E-scapes). E-scapes project species-specific resource use information onto the landscape to classify areas based on energetic importance.

Using our E-scapes, we investigated the relationship between energetic resource distribution and white shrimp distribution and how the scale used to generate the E-scape mediated this relationship.

E-scapes successfully predicted the size, abundance, biomass, and total energy of a consumer in salt marsh habitats in coastal Louisiana, USA at scales relevant to the movement of the consumer.

Our E-scape maps can be used alone or in combination w...

能量资源与栖息地分布存在内在关联。能量资源的可获得性是消费者分布的核心驱动因子，但量化特定栖息地对消费者能量资源需求的贡献程度仍颇具挑战。

本研究提出一种全新研究方法，将遥感（remote sensing）信息与稳定同位素生态学（stable isotope ecology）相结合，以生成能量资源图谱（E-scapes）。此类图谱将物种特异性的资源利用信息投射至景观尺度，进而基于能量重要性对区域进行分类。

借助本研究生成的能量资源图谱（E-scapes），我们探究了能量资源分布与白虾分布之间的关联，以及生成该图谱所采用的空间尺度如何介导这一关联。

能量资源图谱（E-scapes）可在与消费者运动尺度相匹配的空间尺度下，成功预测美国路易斯安那州沿海盐沼生境中消费者的个体大小、种群丰度、生物量及总能量水平。

本研究生成的能量资源图谱既可单独使用，也可结合...