Date: April 6, 2018
Source: University of Portsmouth
New research suggests that
species that live on green roofs arrived by hitching lifts on birds or by
riding air currents.
While green roofs are seen as
being great for biodiversity, adding habitat to what would otherwise be a bare
roof, they can be harsh environments with high winds and extremes of
temperature that make them vulnerable to drought. Because they are high, they can
also be inaccessible to species that can't fly, in particular soil organisms
which are crucial for nutrient cycling and sustainable plant growth.
Yet previous research shows that
these species do live on roofs. So how do they get there?
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