says a Chinese proverb that plants can recognize the arrival of spring long before us, a statement has been supported by science. In fact, researchers have discovered that the behavior of plants and animals that feed on them can
show that spring arrives earlier and earlier, it seems that this progress is accelerating.
show that spring arrives earlier and earlier, it seems that this progress is accelerating.
According to Dr. Stephen Thackeray, the Centre for Ecology and Hydrology in Lancaster: "We have calculated the date of arrival of spring by observing the behavior of over 700 species of animals and plants, including life forms such as plankton of lakes, and found that, on average, spring has arrived 11 days before the middle of the last decade in the 70's. And the rate of change continues to increase. "
Some early signs of the coming of spring is the appearance of the yellow flowers of lesser celandine in the woods. Similarly, sprouting leaves of oak, black-headed gulls acquire a chocolate color, and the crows begin to rebuild their nests.
Thackeray added that the speed of the arrival of spring has been monitored for many years with the emergence of plants, flowers and plankton. "Every year unfolds a sequence of natural events: the life of plants becomes more active, and the herbivores that feed on those plants and, finally, the carnivores that eat herbivores."
The crucial point is that the emergence of plants, herbivores and carnivores are intertwined. However, these are responding to the early arrival of spring in different ways, and rhythms
different, so there is a clear danger to birds that feed on certain insects, may be born too late to get your food. Similar case is that of some young fish, they need to feed on water fleas, are hatching too late and die of starvation. "The times that control how spring unfolds are changing and urgent need to discover how it is affecting wildlife," said Thackeray.
different, so there is a clear danger to birds that feed on certain insects, may be born too late to get your food. Similar case is that of some young fish, they need to feed on water fleas, are hatching too late and die of starvation. "The times that control how spring unfolds are changing and urgent need to discover how it is affecting wildlife," said Thackeray.
This is a project in which the public can help. In a web page where users can record their observations, wrote that a lesser celandine, which usually bloom in March was seen in bloom last week.
0 comments:
Post a Comment