David Drake, University of Wisconsin-Madison; Bret Shaw, University of Wisconsin-Madison, and Mary Magnuson, University of Wisconsin-Madison
Urban coyotes prey on rodents and spread plant seeds. It’s OK to observe them from a distance, but then you should chase them off.
Litter after recent looting in Durban, South Africa. The city recently introduced a scheme that looks to protect biodiversity and associated ecosystems.
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Plague-wary Londoners tolerated mischievous red kites and ravens for their services to the city’s sanitation.
Several large cities have set ambitious targets for increasing their tree canopy. The city of Montréal has adopted an action plan that aims to plant 185,000 trees by 2025.
(Shutterstock)
With wild boar in Barcelona and coyotes in San Francisco, the lockdown has transformed concrete jungles worldwide.
Cities around the world appear to be harboring increasing numbers of rats, including this one: the inflatable ‘Scabby the Rat.’
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Cities often embark upon drastic and expensive eradication campaigns designed to rapidly rid the city of pests like rats. But are the surviving rats stronger or weaker than before?
A film about Cape Town’s environmental resources features a cast as diverse as breakdancers and wetland activists - and is being used as a study aid globally.
A drain carries water but does little else, but imagine how different the neighbourhood would be if the drain could be transformed into a living stream.
Zoe Myers
Drains take up precious but inaccessible open space in our cities. Converting these to living streams running through the suburbs could make for healthier places in multiple ways.
Animals shed bits of DNA as they go about their lives. A new study of the Hudson River estuary tracked spring migration of ocean fish by collecting water samples and seeing whose DNA was present when.
Given that cities may be home to 80% of humanity by the end of the century, they can only be sustainable if eco-friendliness is one of their core features.
Cities today are flooded with light and we seldom think of its harmful impacts on the natural world.
Jim Young/Reuters
Urban greening programs need to consider the harmful impacts of artificial lighting on ecosystems. Fortunately, we can do a lot to create more biosensitive lighting.