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European brown bears live trapping: efficiency for research purposes. (CROSBI ID 688361)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Pereira, Joana ; Rosalino, Miguel ; Reljić, Slaven ; Huber, Djuro European brown bears live trapping: efficiency for research purposes. // Book of Abstracts of the 26th International Conference on Bear Research and Management (IBA). / Majić Skrbinšek, Aleksandra. (ur.). Ljubljana: Univerza v Ljubljani, 2018. str. 146-146

Podaci o odgovornosti

Pereira, Joana ; Rosalino, Miguel ; Reljić, Slaven ; Huber, Djuro

engleski

European brown bears live trapping: efficiency for research purposes.

Many wildlife research studies and management strategies targeting free-ranging animals require the need for temporarily hands-on opportunities to collect biological samples, assess physiological conditions or install monitoring devices. The basic requirements when trapping wildlife are that the animal does not get injured or excessively stressed, or accidentally killed, and that it continues the normal ranging activities after being handled by researchers. Furthermore, trapping campaigns are logistically and financially demanding, and therefore, there is an increasing need to optimize captures success. The objective of this study was to use the 36 years of trapping experience and dataset from free-living European brown bears captures in Croatia to test four hypotheses related to bear’s capturing success. Thus, we hypothesised that capturing success of Aldrich foot snare trap will be determined by factors associated with: (H1) trapping design, associated with the trapping area, season and set ; (H2) bait design, linked to the bait type, frequency of re- baiting and occurrence of pre- baiting ; (H3) trapping events, dependent exclusively on the way animals behave at the trapping-sites ; (H4) or a combination of any of those factors. 416 Aldrich type traps were set at 164 trapping- sites, during 2, 994 days, comprising a total of 7, 298 trap- nights and 63 captured bears. These trapping-sites were monitored in 45 trapping-sessions in both Gorski Kotar and Lika regions. The results highlighted that longer trapping- sessions and the use of bait at trapping-sites increased capturing-efficiency. Also, bears’ visit to the sites enhanced the number of captures ; however in cases where bears managed to eat the bait, the capturing success was lower. Lastly, the importance of some capturing criteria was different for the two study regions, evidencing the influence of trapping areas’ characteristics in the capturing efficiency.

Brown bears, trapping.

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Podaci o prilogu

146-146.

2018.

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objavljeno

Podaci o matičnoj publikaciji

Book of Abstracts of the 26th International Conference on Bear Research and Management (IBA).

Majić Skrbinšek, Aleksandra.

Ljubljana: Univerza v Ljubljani

Podaci o skupu

26th International Conference on Bear Research and Management (IBA 2018)

poster

16.09.2018-21.09.2018

Ljubljana, Slovenija

Povezanost rada

Biologija, Veterinarska medicina