A new NASA project has created Arctic Animal Movement Archive, containing data about 90 animal species living in circumpolar areas, unequivocally showing the effects of global warming on animal ecology. Few are the animal species that spend their entire existence in the ice, most are in constant motion, there are those who move to the boreal forests during the Arctic night, to return to the tundra in the short summer.
Others migrate for very long distances, such as the Arctic tern. According to the United Nations Intergovernmental Panel on Climate Change, the rate of rise in air temperature at the North Pole is about double1 that of the earth's average.
Arctic ice is thinning and its extent decreases every year: in the autumn of 2020 the lowest extent since 1979 was recorded. of plant communities. NASA is monitoring the situation, and is interested in understanding how the Arctic ecosystem is changing, including wildlife.
NASA thinks on a large scale, for this reason they have started a project, the Artic-Boreal vulnerabily experiment to study the ecological consequences of climate change in the entire Arctic region. "Wild animals have only a couple of options: they can move to follow the climatic conditions that are best for them, and if they can't die, or they can evolve," said Mark Hebblewhite, professor of animal ecology at the University of Australia's wildlife ecology program.
As noise pollution affects the lives of some birds
A recent scientific study, conducted by a team of US scientists and published in The Royal Society, highlighted how noise pollution can impair the learning abilities of songbirds.
In some cases, it causes these birds to take twice as long to process basic actions and play their tunes. This study demonstrates a new mechanism through which anthropogenic noise can have an impact on animals, in particular through cognitive interference, modifying their motor and social learning, and it is not excluded that it may also have effects on mating strategies.
At the center of the research was a sample of mandarin diamond birds that were observed in a variety of activities with or without traffic noise. Scientists said: "In some cases, we observed that animals took more than twice as long to learn new skills when they heard road traffic.
For example, to learn to remember the location of a food reward, birds need about nine attempts before they succeeded, while those exposed to traffic noise made an average of 18 tests to learn the same task."