Many animals, including birds, insects, and mammals, change their place of residence for some time according to the season and need. To do this, they also travel thousands of miles. Some do this for a favorable environment, better food, while some do this only to avoid being prey. The new study has shown that now due to the pressure of climate change and human activities.
Trends By A Team Of International Researchers
A team of international researchers has found in research written in Trends in Ecology and Evolution. That due to climate change and increasing human pressure, migration among animals is no longer beneficial. In many cases, these species have seen a decrease in fertility and an increase in mortality. Researchers warn that the benefits of long-distance migration have been eroded. Which can have very serious consequences for the functions and structure of the ecosystem. Referring to 25 recent studies, the researchers reported that. Migration was not as beneficial for many migratory animals, including caribou, seaside birds, and many butterflies.
Food Supply, Fewer Diseases, Protection From Predators
Traveling over long distances proves to be very energy-consuming for such migratory animals, but the benefits like supply of food, less diseases, protection from predatory creatures were more beneficial than this expenditure earlier but now very much. Not so for C species. Many animals that migrate for breeding are either now moving further north. At the same time, many migratory animals continue to migrate in the same way even with less profit.
What Does Research Say
In the journal Nature last month, assistant professor of fish, wildlife, and conservation biology at Colorado State University, Fort Collins, USA, Kyle G. This has come to the fore according to research published under the leadership of Horton. Birds are migrating more rapidly than ever before in the United States in recent decades, which can disrupt feeding and nest building cycles. Researchers claim that the reason for this may be climate change.
What’s Going On
The increased heat during spring and autumn was a predictor of east longitude at the time of birds. Another research has revealed that climate change is bringing early spring, which can lead to more drier summers. Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University, Beijing The research, led by Xu Lian, has been published in the journal Science Advances. The study states that prolonged weather increases the loss of soil moisture through evaporation.
Researchers have found that now the predatory animals eat creatures like lemming. Now due to climate change, the north side has started coming less. In such a situation, foxes eating them have started attacking the nests of migratory birds and eating their eggs or newborn babies. Nest attack rates have tripled in the past 70 years. The researchers say that significant conservation efforts are needed in the northern arctic and northern temperate. Researchers say that in addition to these areas, work will also have to be done on reducing the pressing factors.