Go native: why we need ‘wildlife allotments’ to bring species back to the ‘burbs

As urban populations around the globe skyrocket and the demand for housing grows, space is increasingly at a premium in cities. Unfortunately, despite some notable efforts to include green

space in cities, native wildlife is not often a priority for urban planners, despite research showing the benefits it brings to both people and ecosystems. It may seem that bringing

biodiversity back into cities would require large areas of land set aside for habitat restoration. But it is possible to use relatively small spaces such as transport corridors, verges and

the edges of sporting grounds. Think of it as “land sharing” rather than “land sparing”“. The idea of transforming public areas in cities into green space is not a new one. Allotment

vegetable gardens, which have long been a staple of British suburban life, are enjoying a revival, as are community gardens in Australia. These gardens are obviously great for sustainable

food production and community engagement. But we think similar efforts should be directed towards creating green spaces filled with native vegetation, so that local wildlife might thrive

too. BENEFITS FOR BIODIVERSITY Cities can be hostile environments for wildlife, and although some rare species are still present in some cities, the destruction of habitats and growth of

built-up areas has led to many localised extinctions. Often, species are left clinging on in particular reserves or habitat remnants. "Green corridors” through the built environment can

link these habitat fragments together and help stop urban species from being marooned in small patches – and this is where native gardens can help. Cities are often built in fertile areas

on coasts, and because of their fertility are often home to large numbers of species, which means that planting native vegetation in public spaces can potentially help a wide range of

different species. A study in Melbourne found that native vegetation in urban green space is essential for conservation of native pollinators, as introduced plants only benefit introduced

bees. But with the right habitat, even small mammals such as bandicoots can survive in urban areas. BENEFITS FOR PEOPLE Native green space in cities can also be used to educate communities

about their wildlife. Community gardens can be a very effective way to bring people together and create a sense of identity and cohesion within a community. Many people in cities have little

or no contact with nature, and this “extinction of experience” can make them feel apathetic about conservation. Green space lets city dwellers connect with nature, and if these spaces

contain native rather than introduced plants, they have the added benefit of familiarising people with their native flora, creating a stronger sense of cultural identity. WHERE TO SHARE

There are many places in urban areas that can be tinkered with to encourage native species, with little or no disruption to their intended use. Picture the typical Australian park, for

example: large expanses of grass and some isolated gum trees. Biodiverse systems are more complex, featuring tall trees, smaller ones, shrubs, herbs and grasses, which together create

diverse habitat for a range of species. So by building native garden beds around single trees, at the park’s edges, or within designated areas (even among playgrounds!), we can gain complex

layers of habitats for our native animals without losing too much picnic space. We think of verges as places to park our cars or wheelie bins, but these grass borders are another underused

area where we could plant native gardens. This not only improves the aesthetics of the streetscape but also reduces water use and the need to mow. Australia is a sporting nation and our

sports grounds are cherished features of the urban landscape, yet there are plenty of opportunities here for native vegetation. The average golf course, for instance, only uses two-thirds of

its area for actual golf (unless you’re a very bad shot). The out-of-bounds areas nestled between the fairways offer plenty of space for native biodiversity. Likewise, the boundaries of

sporting ovals are ideal locations for native vegetation borders. Even infrastructure corridors such as train lines, electricity corridors, and the edges of highways have the potential to

contribute to the functioning of local ecosystems. MAKING IT HAPPEN As the existence of community gardens and Landcare groups shows, there is already a drive within local communities to make

these ideas a reality. In fact, some groups of “guerrilla gardeners” are so passionate about urban greening that they dedicate their own time and resources towards creating green public

space, often without permission. But urban gardening doesn’t need to be illegal. Many councils in Australia have policies that encourage the planting of native plants in private gardens,

with some even offering rebates for native landscaping projects. Ultimately we need to both share and spare urban landscapes. By conserving habitat fragments and planting native gardens to

connect these patches, we can bring native plants and animals back into our cities.