ecology

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plant

What species resembles the egret orchid? The flowers are visited by hawk moths! And not only that, tiny insects called thrips also play an important role in pollination! What is the "Egret Orchid Legend"?

サギソウはやや湿った場所に生息する多年草で、園芸でも人気の種類ですが、残念ながら湿地生息地の減少や盗掘が原因で環境省レッドリストでは準絶滅危惧になっている種類でもあります。近縁種は多く、サギソウの名がつく種類も多いですが、鷺のように横に平た...
2022.06.07
plant
animal

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
plant

What are the differences between Greater Celandine and Japanese Kerria? We'll explain how to distinguish between similar species! Are they poisonous? Why do Greater Celandine flowers bloom at an angle?

クサノオウとヤマブキソウはいずれも黄色い4枚の花弁から構成されるケシ科の野生種であるため、区別に迷うことがあるかもしれません。葉は小葉の鋸歯の有無で見分けることができ、花は殆どそっくりですが、花序の付き方や雄しべや雌しべの形に違いがあります...
2022.02.08
plant
plant

What are the differences between Veronica persica, Veronica polifolia, Veronica undulata, and Veronica polifolia? We'll explain how to distinguish between similar species! Has Veronica persica been displacing Veronica polifolia?

オオイヌノフグリ・タチイヌノフグリ・フラサバソウ・イヌノフグリは世界中の畑や道端で見られる青い野生種4種で日本でも早春の花を代表し、雑草に興味をもった時、一番初めの方に名前を覚える植物かもしれません。ただ、いずれも花も青～紫色をしており、葉...
2021.09.24
plant
plant

There are differences between plumeria and Indian jasmine! We'll explain how to distinguish between similar species! When did it arrive in Hawaii? Is it poisonous? Were the flower's flashy colors and scent an evolutionary adaptation to deceive moths?!

Plumeria is a popular garden plant known for its vibrant, large flowers and fragrance, symbolizing the tropics. However, it is also known as Indian jasmine. The terms "plumeria" and "Indian jasmine" may have different meanings. In Japan, "Indian jasmine" often refers to a single, common variety...
2021.09.22
plant
plant

How toxic is castor bean? What are its components? What are the uses of castor oil? Why is it considered safe despite being toxic? Its flowers are pollinated by both wind and insects! Its seeds are dispersed automatically and by ants!

Castor bean is a perennial plant said to originate from northeastern Africa, cultivated worldwide for commercial and ornamental purposes, and sometimes naturalized. It's almost impossible to mistake it for anything else. Its seeds, called "himashi," are rich in oil, and the extracted "castor oil" is used in cosmetics, shampoos, soaps, and more...
2021.09.22
plant
plant

フジ・ヤマフジ・ナツフジの違いは？似た種類の見分け方を解説！なぜ日本人から愛される？花はクマバチ専用だった？藤の豆はカチンと弾け飛ぶ？

フジ・ヤマフジ・ナツフジは現在でも藤棚が用意されるほど、人気のマメ科の植物です。しかしその3種の判別は慣れるまで大変です。この同定には花期やつるの巻く方向を調べることがとても重要です。歴史も古く日本の奈良時代に成立した最古の文献である『古事...
2021.09.22
plant
plant

What are the differences between mustard greens, rapeseed, European rapeseed, and black mustard? How do their uses differ? Why did they evolve to be spicy? Brassica plants, essential for Japanese mustard and salad oil, have increased fruit production thanks to insect visits!

Brassica napus, rapeseed, European rapeseed, and black mustard are four species of yellow flowers that bloom in spring and belong to the Brassicaceae family. Their flower shapes are almost identical, and their habitats are also nearly the same. Furthermore, there are many closely related species, making identification extremely confusing. This complexity is such that even researchers sometimes misidentify them. Recent research has revealed...
2021.09.21
plant
plant

What's the difference between Enokigusa and Enoki? We'll explain how to distinguish between similar species! What are Nagaba Enokigusa and Velvet Enokigusa? These unassuming flowers are pollinated in two ways!?

エノキグサは平地の道端や畑でみられる普通種ですが、詳しくないと名前の通りエノキと区別が迷うことがあるかもしれません。葉の葉脈や鋸歯、先が尖っている点などの共通点もありますが、基本的には分類は全く違っており、草本か木本かという大きな違いがあり...
2021.09.21
plant
plant

トキワツユクサ・ノハカタカラクサ・ミドリハカタカラクサ・オオトキワツユクサの違いは？似た種類の見分け方を解説！栄養繁殖で分布地を拡大していた？蜜を出さない花から出る白い糸の役割は？

トキワツユクサ（ノハカタカラクサ・ミドリハカタカラクサ）とオオトキワツユクサは観賞用に園芸で栽培され、現在急速に野生化しているムラサキツユクサ属です。元々様々な形態を持った品種が野生化したためか、その形態は多様です。現在の分類では葉の形、葉...
2021.09.20
plant
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