Rapid deforestation and excessive human intervention in wildlife habitat lead to very bad consequences. The invasion of wildlife most often occurs during the construction of railways and roads, canals, power lines and pipelines. The habitat of wild animals varies greatly, and often happens is that a large animal trying to cross the main road provokes an accident

As a result, people are suffering under the wheels of cars that run out the animals and the animals themselves. Road mortality is strongly influenced by many rare species, including white-tailed deer, Florida panthers and black bears. According to a study in 2005, nearly 1.5 million traffic accidents occur in the U.S. each year due to running out of deer on the road. At the same time according to the insurance companies damage to vehicles is $ 1.1 billion
In addition, some species are disappearing due to the fact that the roads have separated them from their natural habitat and they can not get access to food
A good way to minimize the conflict of humans and wildlife is to construct crossings for animals, special bridges and tunnels, which allow animals to cross man-made barriers. The first intersections to nature were created in France during the 1950s. Since then, several European countries including the Netherlands, Switzerland, Germany and France used a similar structure. In the Netherlands alone there are more than 600 tunnels, arranged by major and minor roads and highways, including the world's longest ekoduk length of 800 meters
Crossroads for wildlife have become increasingly popular in Canada and the United States. The most famous of them are located in Banff National Park in Alberta, where natural park is divided into two parts, a large commercial road - Highway Trans. To reduce the effects of human intervention in nature - have been built 24 huge transition, and the tunnel, which ensured the preservation of habitats and protected motorists. These passes are regularly used by bears, moose, deer, wolves and moose
In total, the U.S. was built a few thousand of these intersections. They are used to protect the snowy goats in Montana, spotted salamanders in Massachusetts, bighorn sheep in Colorado, desert tortoises in California and Florida panthers in Florida
The second country with the largest population ekodukov the Netherlands. It also built the longest in the world ekoduk width of 50 meters and a length of 800 meters

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