FLYING SQUIRRELS · SPECIES PROFILE

Formosan Giant Flying Squirrel

Petaurista grandis

Not EvaluatedDETAILED REFERENCE
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Body lengthUnknown
Tail lengthUnknown
WeightUnknown
Activitylarge nocturnal gliders capable of long controlled glides
ConservationNot Evaluated
Countries / regionTaiwan
01

Classification & Current Taxonomy

KingdomAnimalia
PhylumChordata
ClassMammalia
OrderRodentia
FamilySciuridae
SubfamilySciurinae
TribePteromyini
GenusPetaurista
SpeciesPetaurista grandis
MDD taxon ID1001642

Current MDD recognizes this Taiwan endemic separately from Petaurista philippensis.

02 · DISTRIBUTION

Where it occurs

Current MDD country distribution: Taiwan.

Country-level distribution is a broad map, not a claim that the species occurs throughout every listed country.

02 · HABITAT

Where it lives

Current MDD country distribution: Taiwan. Species-specific forest type, elevation limits and microhabitat use are not fully summarized here. Genus context: Asian tropical, subtropical and montane forest with tall connected canopy.

03

Shelter, Nest & Resting Sites

Species-specific den and nest data: Unknown. Genus context: tree cavities and large arboreal nests/secure tree sites. This is context, not a substitute for direct observations of Formosan Giant Flying Squirrel.

RANGE & HABITAT CONTEXT

Compare form, setting and structure

Related flying squirrels help break up the reference while showing how habitat, body form and movement can vary across the broader group.

Black Flying Squirrel — related flying squirrel visual context
RELATED FLYING SQUIRRELBlack Flying SquirrelAeromys tephromelas — related group reference for visual comparison; not Formosan Giant Flying Squirrel.(c) Wich’yanan (Jay) Limparungpatthanakij, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
Thomas’s Flying Squirrel — related flying squirrel visual context
RELATED FLYING SQUIRRELThomas’s Flying SquirrelAeromys thomasi — related group reference for visual comparison; not Formosan Giant Flying Squirrel.(c) pfaucher, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
04

Identification & Physical Profile

Body lengthUnknown
Tail lengthUnknown
WeightUnknown
AppearanceSpecies-specific adult measurements and diagnostic pelage details are not yet sufficiently standardized in available species-specific references. Genus context: Petaurista is a large / giant flying-squirrel lineage; exact field identification should use locality, measurements and current taxonomic references together.

Species-specific adult measurements and diagnostic pelage details are not yet sufficiently standardized in available species-specific references. Genus context: Petaurista is a large / giant flying-squirrel lineage; exact field identification should use locality, measurements and current taxonomic references together.

05

Gliding Anatomy & Locomotion

As a member of Pteromyini, this species uses a furred patagium between the fore- and hind limbs for controlled gliding. Wrist-supported membrane anatomy and the tail contribute to lift, steering, braking and landing. Species-specific maximum glide distance: Unknown.

Pteromyini context: Flying squirrels glide rather than perform powered flight. The patagium creates an aerodynamic surface, specialized wrist structures help support that surface, and the flattened or bushy tail contributes to stability and control.

06

Behavior, Activity & Communication

Activity: large nocturnal gliders capable of long controlled glides

Social system: Unknown at species-specific detail.

Communication: Unknown at species-specific detail. Flying squirrels also use scent, posture and acoustic signals, but a species-specific repertoire is not assigned without direct evidence.

BEHAVIOR & FORAGING CONTEXT

Keep behavior connected to the animal

These are related flying squirrels, not photographs of Formosan Giant Flying Squirrel. Use them as visual context for locomotion, posture, feeding and environmental use.

Hairy-footed Flying Squirrel — related flying squirrel visual context
RELATED FLYING SQUIRRELHairy-footed Flying SquirrelBelomys pearsonii — related group reference for visual comparison; not Formosan Giant Flying Squirrel.(c) BioM_Akekachoke.B, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
Kashmir Flying Squirrel — related flying squirrel visual context
RELATED FLYING SQUIRRELKashmir Flying SquirrelEoglaucomys fimbriatus — related group reference for visual comparison; not Formosan Giant Flying Squirrel.(c) Ahmad Hassan, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
07

Diet & Foraging

Species-specific diet: Unknown or incompletely documented in available references. Genus context: mostly plant-heavy diets including leaves, buds, fruit, nuts and bark; species-specific emphasis varies.

Unknown
08

Reproduction & Development

Breeding seasonUnknown
GestationUnknown
Litter sizeUnknown
DevelopmentUnknown

Unknown values remain explicit. Reproductive figures from related flying squirrels are not silently substituted for this species.

09 · LONGEVITY

Lifespan

Unknown

09 · PREDATORS

Predation & Risk

Species-specific predator list: Unknown. Flying squirrels are broadly preyed on by nocturnal raptors, snakes and mammalian carnivores, with the exact predator community depending on region.

10

Ecology & Ecosystem Role

Species-specific ecological role is incompletely documented. Genus context: large-bodied folivore/frugivore/seed consumer that can influence canopy plant resources.

GROUP DIVERSITY

See the wider group around this species

Squirrels in the same broad group can look and live very differently. These credited references provide comparison without changing the facts for Formosan Giant Flying Squirrel.

Humboldt’s Flying Squirrel — related flying squirrel visual context
RELATED FLYING SQUIRRELHumboldt’s Flying SquirrelGlaucomys oregonensis — related group reference for visual comparison; not Formosan Giant Flying Squirrel.(c) Kyle Stark, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
Northern Flying Squirrel — related flying squirrel visual context
RELATED FLYING SQUIRRELNorthern Flying SquirrelGlaucomys sabrinus — related group reference for visual comparison; not Formosan Giant Flying Squirrel.(c) Steve Waller, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
11

Conservation

CURRENT MDD / IUCN STATUSNot Evaluated

Current MDD status shown above. Species with narrow island or montane distributions can face serious local habitat pressure even when a global assessment is not available.

12

Research Coverage & Unknowns

Natural-history coverage is incomplete. Taxonomy, current country distribution and conservation category are anchored to MDD; unsupported measurements, reproduction and lifespan remain Unknown rather than inferred from relatives.

Genus context: Petaurista is a large / giant flying-squirrel lineage associated broadly with Asian tropical, subtropical and montane forest with tall connected canopy. This is genus-level context where direct species-specific data are missing.

13

References & Further Reading

Taxonomy, distribution and conservation status follow the Mammal Diversity Database.