The Junín red squirrel (''Sciurus pyrrhinus'') is a species of

squirrel Squirrels are members of the family Sciuridae (), a family that includes small or medium-sized rodents. The squirrel family includes tree squirrels, ground squirrels (including chipmunks and prairie dogs, among others), and flying squirrel ...

from

Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...

and

Ecuador Ecuador, officially the Republic of Ecuador, is a country in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean on the west. It also includes the Galápagos Province which contain ...

Description

The Junín red squirrel is a relatively large

tree squirrel Tree squirrels are the members of the squirrel Family (biology), family (Sciuridae) commonly just referred to as "squirrels". They include more than 100 arboreal species native to all continents except Antarctica and Oceania. They do not form a ...

, having a head-body length of about . The majority of the body is covered in dark red fur, grizzled with black, fading to a chestnut brown on the tail, which is slightly shorter than the combined head and body. The underparts vary in colour between individuals, being white, red, or some shade in between. The whiskers and the edges of the ears are black.

Distribution and biology

The squirrel is known to inhabit the eastern slopes of the

Andes The Andes ( ), Andes Mountains or Andean Mountain Range (; ) are the List of longest mountain chains on Earth, longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range ...

in central Peru, from

Huánuco Huánuco (; ) is a city in central Peru. It had a population of 196,627 as of 2017 and in 2015 it had a population of 175,068. It is the capital of the Huánuco Region and the Huánuco District. It is the seat of the diocese of Huánuco. The met ...

in the north to Ayacuchco and

Cusco Cusco or Cuzco (; or , ) is a city in southeastern Peru, near the Sacred Valley of the Andes mountain range and the Huatanay river. It is the capital of the eponymous Cusco Province, province and Cusco Region, department. The city was the cap ...

in the south, although it may also live further east, perhaps as far as the

Bolivia Bolivia, officially the Plurinational State of Bolivia, is a landlocked country located in central South America. The country features diverse geography, including vast Amazonian plains, tropical lowlands, mountains, the Gran Chaco Province, w ...

n border, and further north, with one specimen collected in 1920 known from Zamora-Chinchipe Province of Ecuador. Within this region it inhabits both lowland

rainforest Rainforests are forests characterized by a closed and continuous tree Canopy (biology), canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforests can be generally classified as tropi ...

s and higher, montane, forests. Little is known about the squirrel's biology and behaviour. They are known to be diurnal and

arboreal Arboreal locomotion is the locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them. Some animals may scale trees only occasionally (scansorial), but others are exclusively arboreal. The hab ...

, and are often seen in small groups, suggesting that they are not strongly territorial. Lactating females, presumably nursing young, have been identified in January. They are thought to be relatively numerous, and to tolerate human activity such as logging and hunting better than some other squirrels, but their limited range has led to them being classified as "Vulnerable" by the Peruvian Ministry of the Environment.

References

{{DEFAULTSORT:Junin red squirrel Sciurus Mammals of Ecuador Mammals of Peru Mammals described in 1898 Taxa named by Oldfield Thomas Taxonomy articles created by Polbot