Deer population surveys have traditionally been accomplished via spotlighting, trail cameras, stand counts, and aerial surveys. Aerial surveys are conducted using fixed wing aircrafts, or helicopters, with a visual observer onboard. This study used an unmanned aerial system (UAS) equipped with a thermal sensor to conduct an unmanned-aerial survey for white-tailed deer. The thermal sensor performed well, and was successful in estimating population size, density, and sex ratios, and at a fraction of the cost of traditional techniques.
This novel methodology proved successful for identifying, mapping, and enumerating salmon redds in clear water spawning streams. This technique and approach can be tailored to fit your specific research objectives. Examples of variations can include spatially rectified full-motion video (FMV), 3D models of spawning sites, bathymetric profiling, and timelapse spatial overlay. This approach can be used to map and enumerate redds, monitor and estimate fish passage and migrations, monitor riverine habitats, and record baseline habitat conditions for in-stream improvements and project planning.
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