Predicting preferred prey of Sumatran tigers Panthera tigris sumatrae via spatio-temporal overlap

Allen, Maximilian L. (avtor), Sibarani, Marsya C. (avtor), Krofel, Miha (avtor)

Encounter rates of carnivores with prey are dependent on spatial and temporal overlap, and are often highest with their preferred prey. The Critically Endangered Sumatran tiger Panthera tigris sumatrae is dependent on prey populations, but little is known about its prey preferences. We collected camera-trap data for 7 years (2010%2016) in Bukit Barisan Selatan National Park, Sumatra, to investigate spatial and temporal overlap of tigers with potential prey species. We also developed a novel method to predict predator%prey encounter rates and potential prey preferences from camera-trap data. We documented at least 10 individual tigers, with an overall detection rate of 0.24 detections/100 trap nights. Tigers exhibited a diurnal activity pattern and had highest temporal overlap with wild boar Sus scrofa and pig-tailed macaques Macaca nemestrina, but highest spatial overlap with wild boar and sambar deer Rusa unicolor. We created a spatial and temporal composite score and three additional composite scores with adjustments for the spatial overlap and preferred prey mass. Wild boars ranked highest for all composite scores, followed by sambar deer, and both are known as preferred tiger prey in other areas. Spatial and temporal overlaps are often considered as separate indices, but a composite score may facilitate better predictions of encounter rates and potential prey preferences. Our findings suggest that prey management efforts in this area should focus on wild boar and sambar deer, to ensure a robust prey base for this Critically Endangered tiger population.

• Jezik: Angleški jezik
• Ključne besede: Sumatran tigers, Panthera tigris sumatrae, preferred prey
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Status publikacije: V tisku
• Različica publikacije: Recenzirani rokopis
• Leto izida: 2020
• Št. strani: Str.
• Številčenje: Vol. , iss.
• PID: 20.500.12556/RUL-121657
• UDK: 59
• ISSN pri članku: 1365-3008
• DOI: 10.1017/S0030605319000577
• COBISS.SI-ID: 5646758
• Datum objave v RUL: 21.10.2020

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
• Začetek licenciranja: 21.10.2020

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: tiger, Panthera tigris, prehrana, izbira plena, Sumatra

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P4-0059
• Naslov: Gozd, gozdarstvo in obnovljivi gozdni viri