Habitat Use Analysis

What habitat use analysis revealed

Habitat Use Analysis

The spatial distribution of predation risk probability for youg Steller sea lions as a function of marine habitat features.

We have not yet commenced a detailed habitat use analysis for the Pacific sleeper shark in our study region, because we don’t have enough data yet. In the meantime though, here we will show you the results of a complex, multi-species space use analysis that we performed for a previous project.


Building on an analysis of the home range and space use of juvenile Steller sea lions we had tracked with external satellite transmitters over the course of two decades, published in this freely downloadable paper, we visualize the spatial distribution of the predation risk for young sea lions as a function of marine habitat features, as shown here.


Input data from multiple telemetry streams with widely divergent sample sizes and Spatio-temporal resolution was used. Our current shark project is not directly addressing predation risk. However, the approach our team developed in this example may be applicable for constructing Pacific sleeper shark species distribution models or for other spatial examinations of predator-prey interactions as it can integrate data from multiple biotelemetry platforms.