ecosystem

Why shouldn't we exterminate bears to the point of extinction? A complete explanation of the benefits of bears (Asian black bears and brown bears)!

In Japan, the Japanese black bear (Ursus thibetanus japonicus) is found on Honshu and Shikoku, while the Hokkaido brown bear (Ursus arctos yesoensis) is found on Hokkaido. In 2025, these bears were projected to be active in populated areas...

2025.11.02

animalecosystem

Research has revealed that "intraguild predation" occurs universally between spiders and wasps, potentially contributing to ecosystem stability! [Press Release]

In the "Ecological Information" section, at the request of the lead author, Mr. Daisuke Noguchi, I assisted with the introduction, discussion, and literature review on a paid basis. This research revealed that intraguild predation between spiders and wasps occurs universally, and that there is a possibility of "symmetrical intraguild predation" between spiders and wasps...

2022.03.31

animalecosystem

This article explains how to perform biodiversity index and community structure analysis (cluster analysis/NMDS) using the statistical analysis language "R"!

If you want to calculate biodiversity indices or perform community structure analysis (cluster analysis/NMDS), the best approach is to use the free statistical programming language 'R'. However, when I was a student, there was little documentation available, and I struggled to write the code. Variables...

2019.09.10

ecosystem