Although poor reproduction rates have been known to affect individual species in the past, this is the first time such low reproductive rates have been seen at every stage of the ecosystem.
Although poor reproduction rates have been known to affect individual species in the past, this is the first time such low reproductive rates have been seen at every stage of the ecosystem, the study authors say.
"Our study shows that climate change is more than 'just' warming, and that ecosystems may be hard hit by currently still rare but extreme events," lead author Niels Martin Schmidt, a biologist at Aarhus University in Denmark, said in a"What it also brings out is the unparalleled value of long-term observations of the Arctic. Only by keeping an eye on full arctic ecosystems can we understand the havoc brought by the changing climate.
Late nest initiation resulted in fewer shorebird eggs. The small number that hatched did so later in the season, which meant that they were less likely to have the time and resources to make it until fledgling. As for the mammals, the researchers did not see any Arctic fox cubs or muskox calves.
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