Efficiency of pitfall traps and snap traps in small terrestrial mammals depends on their diet composition
Efficiency of pitfall traps and snap traps in small terrestrial mammals depends on their diet composition
We compared the monitoring of small terrestrial mammals among forest stands by pitfalls and snap traps. The captures tookplace in the Czech Republic in the Moravskoslezske Beskydy Mts. (2007–2012) on 16 plots in adult beech and spruce stands between 910and 1220 m a.s.l. In total, 14 species of small mammals were captured (12 in the snap traps and 10 in the pitfalls). Snap traps capturedthe broader species spectrum and they were more successful in capturing larger species of small terrestrial mammals consuming ahigher proportion of plant food (mice, and in particular voles). The pitfalls were more effective in capturing smaller species with apredominance of animal food (shrews). To cover the widest species spectrum of small mammals, it is appropriate to use both types oftraps. To observe the functional diversity of the community in terms of food composition, it is sufficient to use snap traps.
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