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Wednesday, February 5, 2020

parallel declines in abundance of insects and insectivorous birds

Parallel declines in abundance of insects and insectivorous birds in Denmark over 22 years

Anders Pape Møller

See the paper at this link:

https://onlinelibrary.wiley.com/doi/abs/10.1002/ece3.5236

 Dr. Anders Pape Moller completed a 21-year study that demonstrates how declining insect abundance may be linked to declines in numbers of insectivorous birds. Published last spring in the journal Ecology and Evolution...

 "This 21‐year study of insect abundance showed a tenfold decline. The decline in insect abundance reported here could partly be attributed to changes in climate. Such declines in insect abundance may have consequences for reproductive success in insectivorous birds such as hirundines (swallows), but also have consequences for population size as documented in the present study. Long‐term population declines in abundance of insects must have important consequences for insectivores, interspecific interactions, and ecosystem functioning."


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