In Week 3 - Week 3 PDF

Title In Week 3 - Week 3
Author Sulav Pokhrel
Course Wildlife Management
Institution Charles Darwin University
Pages 1
File Size 103.9 KB
File Type PDF
Total Downloads 62
Total Views 163

Summary

Week 3...


Description

The use of Unmanned Aerial Vehicles (UAV’s) or generally referred to as ‘drones’ for aerial surveys. As I was going through the week 5 lecture I was interested to know more about the current aerial survey method to detect different animal species and I wanted to explore more. In wildlife, it is very difficult to estimate the accurate number of species but we can attain the precise number using a count method [1]. The existing aerial wildlife monitoring techniques include remote photography, GPS collaring, tagging, thermal sensor imagery, and so on. Currently, different automated sensors are used to monitor the situation of wildlife events in beneficial ways like monitoring and helping antipoaching campaigns for rhinos, wildlife collar tracking, monitoring of wildlife, and benthic habitat mapping [2]. For instance, there is research done in monitoring wild crocodiles in the Nile river of South Africa which showed that it was way effective and efficient compared to the traditional aerial monitoring method [3]. Similarly, the drone survey of elephants in Burkina Faso (West Africa) was done successfully where more than 700 pieces of the aerial footage were taken for the entire survey [4]. Furthermore, Hodgson, et al., 2018, have shown that drones can calculate wildlife more accurately than human observation. Moreover, even bird species like Corvus cornix can be easily assessed by using a drone which is complex for humans to observe [5]. Drone surveys can be taken in frequent time intervals comparing to human observation and the aerial survey should be taken in the regular interval in order to eliminate type II statistical error. This is because regular monitoring helps to reduce the overall variance that is obtained in the counting process [1]. Reference [1.] Hodgson, J. C., Baylis, S. M., Mott, R., Herrod, A., & Clarke, R. H. (2016). Precision wildlife monitoring using unmanned aerial vehicles. Nature, (6), DOI: 10.1038/srep22574, 1-7. [2.]Gonzalez, L. F., Montes, G. A., Puig, E., Johnson, S., Mengersen, K., & Gaston, K. J. (2016). Unmanned Aerial Vehicles (UAVs) and Artificial Intelligence Revolutionizing Wildlife Monitoring and Conservation. Sensors, (16), https://doi.org/10.3390/s16010097, 1-18. [3.] A.Ezat, M., J.Fritsch, C., & T.Downsa, C. (2018). Use of an unmanned aerial vehicle (drone) to survey Nile crocodile populations: A case study at Lake Nyamithi, Ndumo game reserve, South Africa. Biological Conservation, (223), 76-81. [4.] Vermeulen, C., Lejeune, P., Lisein, J., Sawadogo, P., & Bouché, P. (2013). Unmanned Aerial Survey of Elephants. PLOS ONE, (8), 1-7. [5.] Hodgson, J. C., Mott, R., Baylis, S. M., Pham, T. T., Wotherspoon, S., Kilpatrick, A. D., . . . Koh, L. P. (2018). Drones count wildlife more accurately and precisely than humans. Methods in Ecology and Evolution, (9), 1160-1167....


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