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Four years of camera trapping the wildcats: the rate of capture success as index of population size? A case report from Sicily. Stefano Anile, Dipartimento.

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Presentation on theme: "Four years of camera trapping the wildcats: the rate of capture success as index of population size? A case report from Sicily. Stefano Anile, Dipartimento."— Presentation transcript:

1 Four years of camera trapping the wildcats: the rate of capture success as index of population size? A case report from Sicily. Stefano Anile, Dipartimento di Biologia Animale, Università di Catania Bernardino Ragni, Dipartimento di Biologia Cellulare ed Ambientale, Università di Perugia VII CONGRESSO ITALIANO DI TERIOLOGIA Fabriano (Ancona) 5-7 Maggio 2010

2 Four years of camera trapping the wildcats: the rate of trapping success as index of population size?A case report from Sicily. VII CONGRESSO ITALIANO DI TERIOLOGIA Fabriano (Ancona) 5-7 Maggio 2010 FIRST PERIOD SECOND PERIOD (14 pictures/518 trap-days) vs. (10 pictures/306 trap-days) 1 capture/37 trap-days vs. 1 capture/31 trap-days; X 2 = 0.02, N. S. r 2006 =1 capture/34.3 trap-days Anile S, Bizzarri L, Ragni B (2009) Camera trapping the European wildcat (Felis silvestris silvestris) in Sicily (Southern Italy): preliminary results Hystrix It. J. Mamm. (n.s) 20(1): 55-60

3 Four years of camera trapping the wildcats: the rate of trapping success as index of population size?A case report from Sicily. VII CONGRESSO ITALIANO DI TERIOLOGIA Fabriano (Ancona) 5-7 Maggio 2010 Anile S, Bizzarri L, Ragni B (2010) Estimation of european wildcat population size in Sicily (Italy) using camera-trapping and capture-recapture analyses Italian Journal of Zoology in press r 2007 = 1 capture/24.9 trap-days

4 Four years of camera trapping the wildcats: the rate of trapping success as index of population size?A case report from Sicily. VII CONGRESSO ITALIANO DI TERIOLOGIA Fabriano (Ancona) 5-7 Maggio 2010 r 2008 = 1 capture/122 trap-days

5 Four years of camera trapping the wildcats: the rate of trapping success as index of population size?A case report from Sicily. VII CONGRESSO ITALIANO DI TERIOLOGIA Fabriano (Ancona) 5-7 Maggio 2010 Station/Trap X Y Start TimeEnd Timetrap-daysEvents 1 AB493127417642014/05/200913/07/2009601 2 CD492201417631214/05/200913/07/200960 3 EF491505417587514/05/200913/07/2009606 4 GH490719417580414/05/200913/07/200960 5 IL490619417637414/05/200913/07/2009604 6 MN489569417631614/05/200913/07/200960 7 OP488916417562814/05/200913/07/2009602 8 QR490055417715514/05/200913/07/2009605 9 ST491098417743614/05/200913/07/2009601 10 AB489974417554713/07/200911/09/2009602 11 CD488185417621613/07/200911/09/200960 12 EF488750417673713/07/200911/09/2009601 13 GH489291417890713/07/200911/09/2009602 14 IL489883417859513/07/200911/09/2009603 15 MN490410417814913/07/200911/09/200960 16 OP492195417741013/07/200911/09/200960 17 QR491561417664313/07/200911/09/2009602 18 ST488647417476613/07/200911/09/2009603 r 2009 = 1 capture/ 34.84 trap-days trap-days108032 events finalmente il digitale

6 Four years of camera trapping the wildcats: the rate of trapping success as index of population size?A case report from Sicily. VII CONGRESSO ITALIANO DI TERIOLOGIA Fabriano (Ancona) 5-7 Maggio 2010 yearntrap-daysn eventsrn stations 2006A6518141/37.0013 2006B3306101/30.607 20079671271/24.8511 2008373261/122.0012 2009101080311/34.8418

7 Four years of camera trapping the wildcats: the rate of trapping success as index of population size?A case report from Sicily. VII CONGRESSO ITALIANO DI TERIOLOGIA Fabriano (Ancona) 5-7 Maggio 2010 Carbone et al. (2001) The use of photographic rates to estimate densities of tigers and other cryptic mammals Animal Conservation 4: 75-79 Rovero & Marshall (2009) Camera trapping photographic rate as an index of density in forest ungulates Journal of Applied Ecology 46: 1011-1017 Rowcliffe et al. (2008) Estimating animal density using camera traps without the need for individual recognition Journal of Applied Ecology OBrien et al. (2003) Crouching tigers, hidden prey: Sumatrian tiger and prey populations in a tropical forest landscape Animal Conservation 6: 131-139

8 Four years of camera trapping the wildcats: the rate of trapping success as index of population size?A case report from Sicily. VII CONGRESSO ITALIANO DI TERIOLOGIA Fabriano (Ancona) 5-7 Maggio 2010

9 Four years of camera trapping the wildcats: the rate of trapping success as index of population size?A case report from Sicily. VII CONGRESSO ITALIANO DI TERIOLOGIA Fabriano (Ancona) 5-7 Maggio 2010 Ringraziamenti Alla mia famiglia Ripartizione Faunistico Venatoria di Catania Dott. Carlo Amico & Dott. Maurizio Pennisi Ettore Centofanti per www.fototrappolaggio.com


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