FacebookTwitterEmailPrintFriendly分享Changing weather and population patterns may be causing unpredictable berry harvests, according to a study from the U.S. Geological Survey. With little to no snow covering some areas last winter and a mild winter in 2013/14, specialists from the Kenai National Wildlife Refuge say it’s possible the bushes didn’t develop as usual. Researchers gathered data from Alaskan berry pickers, who reported that some known berry patches were dry and barren this year. 67% of the berry pickers who responded to the survey said berry harvests have been smaller or less predictable in the last ten years. Anecdotal reports also suggested berry patches are being picked clean more quickly by moose, who can more easily access remote areas when there’s little snow, and Alaska’s growing human population.