Butterfly Population Decreasing

Pollution Affecting the Popuation Of Butterflies

An increase of air pollution is destroying floral aromas, pollinators such as butterflies may be struggling to find pollen resources. A new study by the University of Virginia has indicated that increased levels of air pollution are destroying of flowering plants, making it hard for pollinators to find them. The study, published in the journal Atmospheric Environment, says that aroma from flowers has decreased by as much as 90% from pre-industrial times.
The research shows that due to the unstable nature of floral hydrocarbons they bond easily with airborne pollutants. The chemical reaction that follows destroys the scents produced by the hydrocarbons, resulting in molecules that no longer smell like flowers. Because of this, butterflies and other pollinators that rely on scent trails to locate plants are forced to rely more heavily on sight. This makes the population of butterflies decline as they struggle to find food.
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