The purpose of this atlas

Begin with what is observed

This site is for curious readers, students and research-minded conservation practitioners. It follows evidence-producing objects—a tracking tag, an image tile, a modelled route and a decision note—to make the steps behind migration analysis easier to inspect.

Our central distinction is simple: a recorded position is an instrument output; an inferred route is a reconstruction; an ecological interpretation connects observations to processes in the living world. These layers can inform each other, but they are not interchangeable. Good explanations show how one layer supports the next and where uncertainty remains.

Patient, specific explanations

We focus on provenance, sampling bias, missing fixes, image timing, model assumptions and the risks of disclosing sensitive wildlife locations. This is not a substitute for field expertise, peer-reviewed methods or local knowledge. It is a starting point for asking better questions of maps and datasets.

We aim to make technical language understandable without flattening meaningful distinctions. Where a method depends on assumptions, those assumptions deserve plain description. Where evidence is incomplete, the gap should remain visible rather than being filled with a confident-sounding story.

How to use the reading index

Begin with tracking records to understand how a position is produced. Continue to remote imagery for environmental context, then compare approaches to route inference. The final article considers how evidence can support careful conservation use. The field questions page offers a quick reference.

For an editorial question or correction, use the research-question composer. We welcome focused questions that identify the page and passage in need of clarification.