Radar Wind Profilers: A Widespread but Unused Remote Sensing Tool for Migration Ornithologists

Post provided by Nadja Weisshaupt

Snapshot of nocturnal waterfowl migration in front of the lunar disk. ©N. Weisshaupt

Snapshot of nocturnal waterfowl migration in front of the lunar disk. ©N. Weisshaupt

Each year an uncountable number of airborne organisms, mainly birds and insects, venture out on long journeys across the globe. In particular, the mass movements of birds have fascinated humankind for hundreds of years and inspired a wealth of increasingly sophisticated studies. The development and improvement of individual tracking devices in animal research and has provided amazing insights into such extensive journeys. Study of mass movements of biological organisms is still a challenge on continent-wide or cross-continental scales.

One tool that can effectively track and/or monitor large numbers of birds is radar technology. Radars offer many advantages over other methods such as visual counts or ringing. They’re less expensive, need less effort, offer better visibility and detectability, and are more applicable for large-scale monitoring. Networks of meteorological radars (as opposed to individual radars) seem particularly promising for large-scale studies. Continue reading

Satellite Data Fusion for Ecologists and Conservation Scientists

What is satellite data fusion, and how can it benefit ecologists and conservation scientists? In a new Methods in Ecology and Evolution video, Henrike Schulte-to-Bühne answers this question using whiteboards and questionable drawing skills.

The availability and accessibility of multispectral and radar satellite remote sensing (SRS) imagery are at an unprecedented high. However, despite the benefits of combining multispectral and radar SRS data, data fusion techniques, including image fusion, are not commonly used in biodiversity monitoring, ecology and conservation. To address this, the authors provide an overview of the most common SRS data fusion techniques, discussing their benefits and drawbacks, and pull together case studies illustrating the added value for biodiversity research and monitoring.

This video is based on the review article ‘Better together: Integrating and fusing multispectral and radar satellite imagery to inform biodiversity monitoring, ecological research and conservation science by Schulte to Bühne and Pettorelli.