Scientists found that Bombus pensylvanicus, commonly known as the American bumblebee, is rapidly declining in the northern part of the continent.
Moreover, this is due to accelerating threats from agricultural expansion, such as widely used insecticides, and the danger of harsh winters throughout the northern region.
According to the study the number of areas where bumblebees can be found decreased by 70% from historical rates. In Canada, the bumblebee population has dropped approximately 89%.
American bumblebees are a keystone species and are vital for the function of ecosystems where they reside, and if they go extinct, the plant reproduction and plant yield could plummet significantly, according to CNN.
Bumblebees use their jaws to rattle flowers until pollen is released, and this process is vital for food crops such as tomatoes, blueberries, strawberries, peppers, and potatoes, and so much more.
Countless animal species are negatively affected by climate change, but a recent study suggests that lizards have it particularly rough.
Following a major international survey published in the journal Science, it was predicted that if current trends continue, 20 percent of all lizard species could go extinct by 2080. An international team of biologists led by Barry Sinervo at the University of California, Santa Cruz researched the effects of rising temperatures on lizard populations around the world. Using their findings, the group developed a predictive model of extinction risk. Sinervo said, “We did a lot of work on the ground to validate the model and show that the extinctions are the result of climate change.” He added, “None of these are due to habitat loss. These sites are not disturbed in any way, and most of them are in national parks or other protected areas.”
The researchers implanted small temperature sensors into dozens of spiny lizards and tested how the animals reacted to constructed areas of shade within New Mexico desert enclosures. They found that the lizards fared better in environments when several small areas of shade were available, in comparison with enclosures that had just a few large areas of shade. Sears explained, “It’s sort of like, if you were out jogging, and there was only one tree and it was a long way to the next one, and it was a hot day — that’s a bad environment. But if there were a bunch of trees along the way providing little bits of shade, you’d feel a lot better.”
The study concluded that extinction predictions for lizards are not uniform across all populations. In general, lizards that live in cooler environments may actually benefit from climate change, while those that live in hotter areas are likely to suffer. As for all those in between, Sears said we can’t be sure, “All bets are kind of off now. Because what our study suggests is that how bushes are placed in an environment might really impact the lizards just as much as the temperature itself.”