clouded magpie vs Common Oak

Abraxas sylvata compared with Quercus robur

Key Differences

clouded magpie is Vulnerable while Common Oak is Least Concern.

Taxonomic Classification

Rank	clouded magpie	Common Oak
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Arthropoda (節足動物)	Magnoliophyta (被子植物門)
Class	Insecta (昆虫)	Magnoliopsida (モクレン綱)
Order	Lepidoptera (チョウ目)	Fagales (ブナ目)
Family	Geometridae	Fagaceae (Beech Family)
Genus	Abraxas	Quercus (Oaks)
Species	Abraxas sylvata	Quercus robur

Conservation Status

clouded magpie

VU — Vulnerable

Common Oak

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	clouded magpie	Common Oak
Diet	—	Autotroph
Average Lifespan	—	1000 years
Average Length	—	25.0 m
Average Weight	—	—

Habitat & Geographic Range

clouded magpie

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Oak

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Africa (Lesotho, South Africa), Asia (Armenia, India), Europe (8 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (4 countries).

clouded magpie

The clouded magpie (Abraxas sylvata) is a geometrid moth in the family Geometridae found across temperate Europe, extending eastward through Russia to Japan. The adult wingspan measures approximately 32–42 mm, with white wings bearing a distinctive pattern of yellow-orange and dark grey to black spots and patches arranged in rows across the forewing and hindwing, creating a striking patterned appearance resembling the magpie coloring of the related magpie moth Abraxas grossulariata, but with a more yellowish, muted tone and less black — hence 'clouded.' Adults fly in one generation from June to July, resting on leaf surfaces and attending woodland flowers for nectar. The larvae feed on wych elm (Ulmus glabra) and occasionally other Ulmus species in mature deciduous woodland and woodland edges. The clouded magpie has become less common in parts of its European range due to the widespread loss of mature elms from Dutch elm disease, which devastated European elm populations from the 1970s onward. Conservation of this species requires the protection of surviving mature elm trees and management of regrowth elms in woodland ecosystems.

Common Oak

ヨーロッパで最も重要かつ広く分布する落葉樹の一つであるイングリッシュオーク（Quercus robur）は、1,000年以上生き、高さ40mに達し、ヨーロッパのどの樹種よりも多くの生物多様性を支える。2,300種以上の昆虫・菌類・地衣類・苔・鳥類が成熟したナラに直接依存している。ヨーロッパ全域から西アジアにかけての温帯林に分布し、その硬くて耐久性のある木材は歴史的に造船・建築・樽製造に欠かせなかった。