Biology

The lasting impacts of West Nile virus on Pennsylvania bird populations

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Population ecologyDisease ecologyZoonotic diseases

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A University of Pennsylvania study reveals that West Nile virus has negatively affected approximately 20% of bird species in Pennsylvania. The research utilized decades of community science observations combined with mosquito surveillance data to track the long-term ecological consequences of the virus on wild bird populations. This demonstrates how sustained data collection can reveal lasting disease impacts on wildlife communities.


The findings highlight how emerging infectious diseases can have persistent, widespread effects on wildlife biodiversity that may not be immediately apparent. This approach of combining citizen science data with disease surveillance provides a model for monitoring long-term ecological changes caused by pathogens in other wildlife populations.


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A new study out of the University of Pennsylvania School of Veterinary Medicine suggests that West Nile virus (WNV) has had impacts on one in five Pennsylvania bird species, demonstrating how decades of community science data and mosquito surveillance can uncover the long-term ecological effects of wildlife disease.

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