Northern palm squirrels are native to India, Iran, Nepal, and Pakistan, but are now also found in Afghanistan. They are widespread throughout these areas.

Biogeographic Regions: palearctic (Introduced , Native ); oriental (Native )

Adult weight is about 147 g. Body length ranges from 230 to 356 mm, including the tail. The tail alone makes up about half of the total body length. There is little known about the metabolic rate of northern palm squirrels. Some key physical features include the stripes on the back. There are typically 3 lightly colored stripes on the back. The top coat color ranges from grayish brown to almost black, while the head is usually grayish to reddish brown.

Average mass: 147.7 g.

Range length: 230 to 356 mm.

Other Physical Features: endothermic ; homoiothermic; bilateral symmetry

• Terrestrial

Northern palm squirrels are widespread and flexible in their habitat preferences. Typically living in elevations below 4,000 m, these animals have been found in grasslands, scrublands, plantations, and tropical to subtropical dry deciduous forests.

Range elevation: 0 to 4000 m.

Habitat Regions: tropical ; terrestrial

Terrestrial Biomes: savanna or grassland ; forest ; rainforest ; scrub forest

Other Habitat Features: urban ; suburban ; agricultural

Northern palm squirrels are herbivorous and omnivorous. They typically feed on a wide variety of foods including seeds, nuts, buds, young bark, leaves, insects, flowers, and grubs. They have also been known to eat baby birds. They feed both in trees and on the ground. They store food for later use.

Animal Foods: birds; insects

Plant Foods: leaves; wood, bark, or stems; seeds, grains, and nuts; fruit; flowers

Foraging Behavior: stores or caches food

Primary Diet: omnivore

Nothing is known about the role that northern palm squirrels play in the ecosystem. However, they probably play an important role in the spread of seeds, they provide food for birds of prey, and they may pollinate some plants.

Ecosystem Impact: disperses seeds; pollinates

Nothing is known about predation on northern palm squirrels, but golden eagles and other raptors are found in the same region and are likely predators of these squirrels. Large snakes and other terrestrial predators may also prey on northern palm squirrels.

Known Predators:

• golden eagles (Aquila chrysaetos)
• raptors (Falconiformes)

Anti-predator Adaptations: cryptic

Northern palm squirrels use sight, touch, smell, and acoustics to perceive their environment. They use sight, touch, and smell for finding food. Sounds and visual displays are used in intraspecific communication. Northern palm squirrels are known for their repetitive, shrill, bird-like calls. Use of scent marking or pheromones is not reported in the literature.

Communication Channels: visual ; acoustic

Perception Channels: visual ; acoustic

Little is known about the maximum or expected lifespan of northern palm squirrels. However, one individual lived for nearly 5 years in captivity and was then released into the wild at the age of 6 to 7 years old.

Northern palm squirrels are gregarious. Up to 10 animals have been seen in one tree at a time. Typically, multiple males fight over one female. The dominant male then mates with the female and leaves her within a couple of days. Breeding occurs several times a year, usually with different partners each time.

Mating System: polygynandrous (promiscuous)

Northern palm squirrels are able to reproduce throughout most, if not all, of the year. Females have 2 to 3 litters yearly. Litter sizes range from 1 to 5, with 3 being the norm. Females have a gestation period of 40 to 45 days. Birth mass of northern palm squirrels is typically about 7 g. The mother will nurse her young for about 2 months.  Males and females reach sexual maturity between 6 and 11 months of age. Males mature closer to about 10 months, while females tend to reach sexual maturity at around 7 to 8 months of age.

Breeding interval: Northern palm squirrels breed 2 to 3 times per year. Usually, matings are separated by 4 to 5 months.

Breeding season: Mating can occur throughout the entire year. However, March to April and July to September are the times when most breeding occurs.

Range number of offspring: 1 to 5.

Range gestation period: 40 to 45 days.

Average birth mass: 7 g.

Average weaning age: 2 months.

Average age at sexual or reproductive maturity (female): 8 months.

Average age at sexual or reproductive maturity (male): 10 months.

Key Reproductive Features: iteroparous ; year-round breeding ; gonochoric/gonochoristic/dioecious (sexes separate); fertilization ; viviparous

Males do not help with the care of young and tend to leave the female 1 to 2 days after mating with her. Female invest heavily in young by building a large nest for them and nursing and protecting them for about 2 months.

Parental Investment: altricial ; pre-fertilization (Provisioning, Protecting: Female); pre-hatching/birth (Provisioning: Female, Protecting: Female); pre-weaning/fledging (Provisioning: Female, Protecting: Female)

Northern palm squirrels are listed by the IUCN Red List as Least Concern. This is likely due to their wide distribution and ability to easily adapt to disturbed habitats. There also seem to be large populations of northern palm squirrels in protected areas. Therefore, there currently seems to be little threat to this species.

US Federal List: no special status

CITES: no special status

IUCN Red List of Threatened Species: least concern

Northern palm squirrels have a tendency to live on plantations and around farm lands, so they can be a pest when it comes to eating buds and seeds of food producing plants. They are also known to eat cocoa pods and can damage twigs of important plants.

Negative Impacts: crop pest

Northern palm squirrels have a special liking for the nectar of silky oaks (Grevillea robusta) and while acquiring it become covered in the powdery pollen of these plants. They may play a role in the pollination of these trees, which are non-native in the range of northern palm squirrels. Also, they may play a role in the pollination and seed dispersal of plantation trees, where they are common. Northern palm squirrels could be hunted and used as a food source for humans if needed.

Positive Impacts: food ; pollinates crops