Delighted to see this paper now out: “Range size and abundance dynamics of Japanese breeding birds over 40 years suggest a potential crisis in warm areas”.

In this collaboration with colleagues in Japan, we investigated changes in the range size and abundance of 165 breeding bird species in Japan over the past 40 years. We found a consistent increase in the range size and abundance of non-native species. Most open-land species showed range-size recovery in the 2010s but their abundance continued to decline. Species seem to be shifting their ranges towards previously cooler areas.

Read the paper here.