Industrial Revolution Pollution Suppresses Succession in Lichen Communities

Lichens are indicators of air pollution and ecosystem health. In London parks, researchers found that historical pollution may have decreased the lichen diversity. Sulfur emissions from the Industrial Revolution and modern nitrogen emissions stall the growth of lichens on urban trees hinting at larger effects on ecosystem health.

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Does wearing a face mask make humans less scary to tree sparrows?

Environmental conditions can change quite quickly. In this case, due to the global pandemic of COVID-19 we’ve all been wearing masks when we venture outside. How might this sudden change in our appearance affect animals that frequently live amongst us? Find out how Eurasian tree sparrows responded to wearing masks in two provinces of Sichuan, China.

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From Cropland to Cities: Aerial Transport of Fungi

How connected are our farms to our cities? If you are a flying fungus, they may be very connected! In a new study, researchers from De Paul University found fungi from the soil on the rooftops of Chicago and wondered why. It turns out, small fungal spores can travel from agricultural fields through the air into the cities and form friendships with the city-dwelling plants. Understanding how these spores move from agriculture to cities could help researchers develop new insight of the urban ecosystem.

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Unequal Access to Urban Tree Benefits in the Bronx

Urban trees provide many ecosystem services to residents, but tree cover can be unequally distributed, resulting in fewer benefits for disadvantaged neighborhoods. This is true in the Bronx, where a recent study demonstrates that the distribution of services provided by trees is related to median income as well as population density. Analyzing the inequity of ecosystem services in our cities is the first step towards developing solutions to improve access to ecosystem services and make the distribution of these resources more just.

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