To avoid wildlife-human conflict
several solutions are used, like electrical fences, the most expensive
solution. Nowadays, technology enables alternative and cheaper approaches for
conservation projects. A technological device was developed to detect
elephants, moving on their habitat, and predict and react by avoiding
confrontation with man. The devices were tested in field experiments, and
proved to be efficient in capturing floor vibration, and air-sound signals.
Collected data also enabled the estimation of the vibration-source by calculus
(using triangulation), revealing the importance of the methodology for
real-time location and tracking of high mass animals (e.g. elephants). Building
up a mesh of devices, separated 25 m from each other, is estimated as possible
to monitor and identify different animals (by discriminating patterns) in an
area, like a virtual fencing system. Though the devices may be effective for
animal behaviour research, or even animal communication analysis, or other
Biology field, other applications outside Biology are possible for them, like
monitoring of: rock-falling, micro seismic railway, infrastructures, and people
movements.
References
[1]
Arosio, D., Longoni, L., Papini, M., Scaioni, M., Lanzi, L. and Alba, M. (2009) Towards Rockfall Forecasting through Observing Deformations and Listening to Microseismic Emissions. Natural Hazards and Earth System Sciences, 9, 119-1131. http://www.nat-hazards-earth-syst-sci.net/9/1119/2009/ https://doi.org/10.5194/nhess-9-1119-2009
[2]
Collins, D.S., Toya, Y., Hosseini, Z. and Trifu, C.-I. (2014) Real Time detection of Rock Fall Events Using a Microseismic Railway Monitoring System. Geohazards6, Kingston.
[3]
Senfaute, G., Duperret, A. and Lawrence, J.A. (2009) Micro-Seismic Precursory Cracks Prior to Rock-Fall on Coastal Chalk Cliffs: A Case Study at Mesnil-Val, Normandie, NW France. Natural Hazards and Earth System Sciences, 9, 1625-1641. https://doi.org/10.5194/nhess-9-1625-2009
[4]
Zimmer, V.L. and Sitar, N. (2015) Detection and Location of Rocks Falls Using Seismic and Infrasound Sensors. Engineering Geology, 193, 49-60. https://doi.org/10.1016/j.enggeo.2015.04.007
[5]
Günther, R.H., O’Connell-Rodwell, C.E. and Klemperer, S.L. (2004) Seismic Waves from Elephant Vocalizations: A Possible Communication Mode? Geophysical Research Letters, 31, L11602. https://doi.org/10.1029/2004GL019671
[6]
O’Connell-Rodwell, C.E. (2007) Keeping an “Ear” to the Ground: Seismic Communication in Elephants. Physiology, 22, 287-294. https://doi.org/10.1152/physiol.00008.2007
[7]
Prince, J.N. and Sugumar, S.J. (2014) Surveillance and Tracking of Elephants Using Vocal Spectral Information. IJRET, 3, 664-671. https://doi.org/10.15623/ijret.2014.0319118
[8]
Zeppelzauer, M. and Stoeger, A.S. (2015) Establishing the Fundamentals for an Elephant Early Warning and Monitoring System. BMC Research Notes, 8, 409. https://doi.org/10.1186/s13104-015-1370-y
[9]
Liang, T. and Lin, Y. (2013) A Fiber-Optic Sensor for the Ground Vibration Detection. Optics Communications, 306, 190-197. https://doi.org/10.1016/j.optcom.2013.05.057
[10]
Jewett, J. and Serway, R. (2007) Physics for Scientists and Engineers. 7th Edition, Brooks/Cole, Pacific Grove.
[11]
Kearey, P., Brooks, M. and Hill, I. (2002) An Introduction to Geophysical Exploration. 3rd Edition, Blackwell Science, Ltd., Oxford.
[12]
Kamei, R., Nakata, N. and Lumley, D. (2015) Introduction to Microseismic Source Mechanisms. The Leading Edge, 34, 876-880. https://doi.org/10.1190/tle34080876.1
[13]
Lainé, J. and Mougenot, D. (2014) A High-Sensitivity MEMS-Based Accelerometer. The Leading Edge, 33, 1234-1242. https://doi.org/10.1190/tle33111234.1
[14]
Teixeira, C. and Zbyszewski, G. (1976) Carta Geológica de Portugal na escala 1/50000. Notícia explicativa da folha 16-A (Aveiro), Servicos Geológicos de Portugal, Lisboa.
[15]
Stoeger, A.A. and Manger, P. (2014) Vocal Learning in Elephants: Neural Bases and Adaptive Context. Current Opinion in Neurobiology, 28, 101-107. https://doi.org/10.1016/j.conb.2014.07.001
[16]
Woodroffe, R., Hedges, S. and Durant, S.M. (2014) To Fence or Not to Fence. Science, 344, 46-48. https://doi.org/10.1126/science.1246251
[17]
Pitman, R.T., Fattebert, J., Williams, S.T., Williams, K.S., Hill, R.A., Hunter, L.B.T., Slotow, R. and Balme, G.A. (2017) The Conservation Costs of Game Ranging. Conservation Letters, 10, 403-413. https://doi.org/10.1111/conl.12276
[18]
Evans, L.A. and Adams, W.M. (2016) Fencing Elephants: The Hidden Politics of Wildlife Fencing in Laikipia, Kenya. Land Use Policy, 51, 215-228. https://doi.org/10.1016/j.landusepol.2015.11.008
[19]
Huijser, M.P., Duffield, J.W., Clevenger, A.P., Ament, R.J. and McGowen, P.T. (2009) Cost-Benefit Analyses of Mitigation Measures Aimed at Reducing Collisions with Large Ungulates in the United States and Canada; A Decision Support Tool. Ecology and Society, 14, 15. https://www.ecologyandsociety.org/vol14/iss2/art15/ https://doi.org/10.5751/ES-03000-140215
[20]
Mehmood, A., Damarla, T. and Sabatier, J. (2012) Separation of Human and Animal Seismic Signatures using Non-Negative Matrix Factorization. Pattern Recognition Letters, 33, 2085-2093. https://doi.org/10.1016/j.patrec.2012.06.015