Why our cities need butterflies

Why our cities need butterflies,Threatened by loss of habitat, industrial agriculture and climate change, butterfly populations have been dwindling in recent years in the UK.
Butterfly Conservation, a British charity devoted to saving butterflies and moths, says that 76 percent of species have declined over the past four decades.
The loss is particularly evident in urban areas, where green spaces are shrinking and butterflies are disappearing more rapidly in the last 20 years: a 69 percent fall compared to 45 percent in the countryside.
It’s a significant loss, because butterflies — the most-studied insects in the UK — act as an indicator for the well-being of a wider ecosystem and the status of several species of insects that are not examined as thoroughly.According to Butterfly Conservation, restoring butterfly populations in gardens, urban green spaces and the countryside can bring substantial benefits to several other species and improve the health, wealth and well-being of the human population.

The butterflies are back in town

Ten years ago, Danahar created a butterfly haven in the coastal city of Brighton, south of London, using the grounds of a local school and getting help from its students.
“Brighton is a really good place to do butterfly havens, because we are on chalk: there’s a whole range of butterflies that feed on plants that grow on it,” Danahar says.

Very soon after its creation, the original site led to a colonization of the Small Blue, a nationally rare butterfly