arran brown vs Cluster Bat

Erebia ligea compared with Myotis sodalis

Key Differences

arran brown is Least Concern while Cluster Bat is Near Threatened.

Taxonomic Classification

Rank	arran brown	Cluster Bat
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Arthropoda (節足動物)	Chordata (脊索動物)
Class	Insecta (昆虫)	Mammalia (哺乳類)
Order	Lepidoptera (チョウ目)	Chiroptera (翼手目)
Family	Nymphalidae (Brush-footed Butterflies)	Vespertilionidae
Genus	Erebia	Myotis
Species	Erebia ligea	Myotis sodalis

Evolutionary Relationship

arran brown and Cluster Bat share a common ancestor at the Kingdom level: Animalia. (動物)

表示 Kingdom: Animalia

Conservation Status

arran brown

LC — Least Concern

Cluster Bat

NT — Near Threatened

Physical Characteristics

Attribute	arran brown	Cluster Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

arran brown

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (33 countries).

Cluster Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

arran brown

アランブラウン（Erebia ligea）はユーラシアの山地・亜高山帯の林縁や草地に広く分布するタテハチョウ科の蝶で、茶褐色の翅に橙色のバンドと白斑が連なる特徴的な模様を持つ。IUCNレッドリストでは軽度懸念（LC）に分類されており、北欧からアジアにかけて安定した個体群を維持している。夏季にのみ成虫が出現し、涼冷な気候の草地・針葉樹林帯を好む高山性の蝶である。

Myotis sodalis, the Indiana bat or cluster bat, is a medium-sized insectivorous bat in the family Vespertilionidae endemic to the eastern United States. It is one of the most endangered bats in North America, listed as Endangered under the U.S. Endangered Species Act and classified as Near Threatened by the IUCN. The species is named for its behavior of clustering in extremely dense hibernation groups—sometimes thousands of bats per square meter—in specific limestone caves and mines during winter. These few critical hibernacula make the species extremely vulnerable to disturbance and disease. Since 2007, Indiana bats have suffered severe mortality from white-nose syndrome, a fungal disease caused by Pseudogymnoascus destructans that disrupts hibernation and causes mass starvation. During summer, Indiana bats roost under loose bark of dead trees and forage for insects over forested landscapes and riparian areas. Foraging individuals consume moths, beetles, and flying insects. Conservation efforts include cave gate protection, white-nose syndrome research, and summer habitat management on public and private lands across the eastern US.