Previous studies investigating the deterrence effect of electric fences have utilized highly variable voltage currents without satisfactory justification. Therefore, in this study, I aimed to clarify required voltage for successfully deterring several animal species that vary in body size as well as the factors that contribute to such differences. Small electric fences were installed in a forest, and attractants placed inside and outside the fence. The response to these attractants was captured by sensor camera (i.e., camera trap), and the probability of invasion into the fences was examined for seven species of mammal. While large bodied species such as wild boar and sika deer did not enter the fence even at a low voltage of 1500 V, medium-sized mammals such as raccoon dogs and badgers required 10000 V for effectiveness. The reason for this may be the electrical conductivity of the soil. When weighted iron plates were placed on the soil and the change in electric conductivity was measured, the higher the weight the that more conductivity increased. To eliminate the effect of soil conductivity, metallic mesh was laid around the electric fence and connected to the negative terminal of the energizer. All animals did not enter the fence even at mid-range voltages, and there was no species difference in the intrusion rate. These results indicate that effectiveness of low voltage electric fences is inferior for light-weight animals likely due to the grounding not being sufficiently secured, and that the problem can be solved by increasing the voltage.

先前调查电围栏威慑效果的研究使用了高度可变的电压电流，但没有令人满意的理由。因此，在这项研究中，我旨在阐明成功阻止几种体型不同的动物物种所需的电压以及导致这种差异的因素。在一片森林中安装了小型电栅栏，在栅栏内外放置了引诱剂。传感器相机（即相机陷阱）捕获对这些引诱剂的反应，并检查了七种哺乳动物入侵围栏的可能性。虽然野猪和梅花鹿等体型较大的物种即使在 1500 V 的低电压下也不会进入围栏，但浣熊和獾等中型哺乳动物需要 10000 V 才能有效。其原因可能是土壤的导电性。当将加重的铁板放在土壤上并测量电导率的变化时，重量越大，电导率增加的越多。为了消除土壤电导率的影响，在电栅栏周围铺设金属网并连接到增能器的负极端子。所有动物即使在中档电压下也没有进入围栏，入侵率没有物种差异。这些结果表明，由于接地不充分，低压电围栏对轻量动物的有效性较差，可以通过增加电压来解决问题。当将加重的铁板放在土壤上并测量电导率的变化时，重量越大，电导率增加的越多。为了消除土壤电导率的影响，在电栅栏周围铺设金属网并连接到增能器的负极端子。所有动物即使在中档电压下也没有进入围栏，入侵率没有物种差异。这些结果表明，由于接地不充分，低压电围栏对轻量动物的有效性较差，可以通过增加电压来解决问题。当将加重的铁板放在土壤上并测量电导率的变化时，重量越大，电导率增加的越多。为了消除土壤电导率的影响，在电栅栏周围铺设金属网并连接到增能器的负极端子。所有动物即使在中档电压下也没有进入围栏，入侵率没有物种差异。这些结果表明，由于接地不充分，低压电围栏对轻量动物的有效性较差，可以通过增加电压来解决问题。金属网铺设在电围栏周围，并连接到励磁机的负极端子。所有动物即使在中档电压下也没有进入围栏，入侵率没有物种差异。这些结果表明，由于接地不充分，低压电围栏对轻量动物的有效性较差，可以通过增加电压来解决问题。金属网铺设在电围栏周围，并连接到励磁机的负极端子。所有动物即使在中档电压下也没有进入围栏，入侵率没有物种差异。这些结果表明，由于接地不充分，低压电围栏对轻量动物的有效性较差，可以通过增加电压来解决问题。