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This year, bears have been appearing more in the villages precisely because of the very bad harvest of acorns from the beech, the bears’ favorite tree.

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Maki Yamamoto, who studies bears at the Nagaoka University of Technology in Niigata. At least 212 people survived what has been a record year for bear attacks in Japan, according to the Ministry of Environment. Six people have died.

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Is it possible to provide acorns or some other food for the bears in more isolated areas?

1 ( +2 / -1 )

because of the very bad harvest of acorns from the beech,

I thought acorns were the seeds of oak trees and beechnuts the seeds of beech trees?

3 ( +4 / -1 )

Unfortunately this is another consequence of climate change, different temperatures means different times for flowers and fruits to appear, and also can affect insects involved in the process, so it can cause changes that lead to scarcity of food for the bears which then will come closer to humans and favor attacks.

Is it possible to provide acorns or some other food for the bears in more isolated areas?

Likely it would be unfeasible to dedicate the resources necessary to prevent the attacks, we would be talking about dialing back changes in whole ecosystems,

0 ( +3 / -3 )

I say this every time, but are all the bears sightings or bears being exterminated finding bears that are skinny? If not, changing bear behaviour cannot be simply blamed on lack of food.

Are these people actually going into the woods and measuring the acorn or beech nut volume? That's what

precisely because of the very bad harvest of acorns from the beech

suggests. This is only "precise" if they are monitoring acorn volume every year across the country. The populations of deer, inoshishi, and those "kyon" non-native mini deer that escaped from a zoo are all very high. There is no lack of food for those animals.

1 ( +1 / -0 )

This is only "precise" if they are monitoring acorn volume every year across the country

According to previously published research, this is the case

https://www.jstage.jst.go.jp/article/mammalstudy/31/2/31_2_93/_article/-char/ja/

The researchers not only measure the acorn production, they also correlated it with bear consumption of crops, so years with low number of acorns coincide with bears eating more crops

In years of low acorn production, brown bears used crops as an alternative food source from September through November,

It does not seem to be difficult to just assume the same thing would happen in other years or locations in absence of a factor that would modify the relationship.

-1 ( +1 / -2 )

Deer eat mostly browse (leaves, twigs, shoots of woody plants and vines) and forbs (weeds and other broadleaf flowering plants).

Bears eat nuts, acorns, fish, and bamboo.

Acorns are from oaks.

1 ( +2 / -1 )

The linked article on Mammal Study is from 2006.

0 ( +1 / -1 )

The linked article on Mammal Study is from 2006

*According to previously published research, this is the case*

*It does not seem to be difficult to just assume the same thing would happen in other years or locations in absence of a factor that would modify the relationship.*

0 ( +1 / -1 )

Climate change since 2006. How many oak trees have been cut down?

2 ( +2 / -0 )

Climate change since 2006. How many oak trees have been cut down?

Climate change has been happening since much longer than 2006.

1 ( +3 / -2 )

"Climate change [has been occurring since] since 2006. How many oak trees have been cut down?"

Referring to Japan? Several oak trees have been cut down.

-3 ( +0 / -3 )

Thanks folks. Diseased trees would make sense. It can't be conventional deforestation, because forestry in Japan is on its knees.

Attacks are also increasing outside of donguri season, which starts around mid August, so there must be other factors at work. There were 71 attacks this year in April to August.

https://www3.nhk.or.jp/news/html/20231011/k10014222461000.html

0 ( +1 / -1 )

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