Climate change makes grizzly bear salmon, turn to fruit

The grizzly bear bears a salmon dish on the stream to climb the elderberry hill to ripen earlier than usual.

Grizzly bear eats red salmon in Alaska.Video: YouTube.

Scientists at Oregon State University, USA in the study published in the journal Proceedings of the

The National Academy of Sciences said the grizzly bear is putting salmon to eat the elderberry when forced to choose one of them, Telegraph reported on August 25.

The temperature of the Earth warmed up so the elderberry fruit ripened earlier than usual, at the right time when red salmon appeared in streams on Kodiak Island, Alaska. Normally, grizzly bears on the island eat salmon in the early summer before enjoying the elderberry fruit in late August and September.

According to zoologist William Deacy, the time of the bear's dish appears to be pushed up soon."Like breakfast and lunch are served at the same time and there is nothing to eat at dinner. You have to choose breakfast or lunch because you can only eat that much at a time , " Deacy said.

Research shows that during the unusually warm summer of 2014, the bears went to the hill to eat elderberry trees, though they normally eat about 75% of salmon. Because elderberry berries have less protein than salmon, bears consume less energy and are more likely to gain weight.

Unusual behavior of bears due to climate change can affect the entire ecosystem."The bear moved from eating salmon to elderberry to upset the ecological chain that nourishes the soil with a large amount of salmon," according to the study.

On average, red elderberry fruits ripen early 2.5 days every 10 years. If this model continues, the time when the fruit of the rice plant will ripen will coincide with the time of the appearance of salmon before 2070.