The growing human population requires an ever-increasing expansion of urban areas and increases consumption of natural resources. The expansion of urban areas causes fragmentation or destruction of natural habitats, leading to the disappearance of biodiversity and related ecosystem services, on which both urban and rural populations depend. About 70% of the world’s population is expected to live in urban areas by 2050 (CBD).
Urbanization is one of the most significant factors in the global loss of biodiversity (Czech, 2000). Numerous studies have shown that both the diversity and the abundance of native plant and animal species is diminished precisely by the process of accelerated urbanization. Also, invasive species additionally put pressure on native species, often posing a threat to the health of the local population.
Numerous wild species, on the other hand, have been able to adapt to urban conditions even in conditions of limited natural habitat. Green infrastructure in cities plays a key role in supporting the survival of wild species and their habitats and helps to establish communication between different populations, thus maintaining the functionality of the ecosystem and its services.