To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

Merriam's ground squirrel

From Wikipedia, the free encyclopedia

Merriam's ground squirrel
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Clade: Tetrapodomorpha
Class: Mammalia
Order: Rodentia
Family: Sciuridae
Genus: Urocitellus
Species: U. canus
Binomial name
Urocitellus canus
(Merriam, 1898)
Synonyms

Spermophilus canus Merriam, 1898
Spermophilus vigilis Merriam, 1913

Merriam's ground squirrel (Urocitellus canus) is a species of rodent in the family Sciuridae. It occurs in the states of Idaho, Nevada, and Oregon in the United States.[1]

YouTube Encyclopedic

  • 1/3
    Views:
    997
    6 975
    377
  • Mammals of the World: Merriam's Kangaroo Rat
  • Black-tailed Jackrabbit (Lepus californicus)
  • Hungry black tailed jackrabbit

Transcription

Contents

Description

Merriam's ground squirrel is a small, grey, ground squirrel with a relatively nondescript appearance. Adults range from 18.8 to 21.8 centimetres (7.4 to 8.6 in) in head-body length, with a 3.1 to 5.0 centimetres (1.2 to 2.0 in) tail. Although their weight varies throughout the year, depending on nutrition, typical adult weights of 144 to 210 grams (5.1 to 7.4 oz) have been recorded for females, and 146 to 300 grams (5.1 to 10.6 oz) for males.[2]

The fur is short and lacks any distinctive markings such as stripes or spots. It is greyish buff over most of the body, and pale buff to white on the underparts. The tail is relatively short and narrow compared with most other related ground squirrels, and the ears are small. However, it can only be reliably distinguished from Townsend's ground squirrel and the Piute ground squirrel by genetic testing, and, for a long time, these species were not considered to be separate.[2]

Distribution and habitat

The species is found throughout much of Oregon, although not in the northern and western regions of the state. Some populations extend south of the state line into the extreme north-eastern corner of California and the extreme north-western corner of Nevada, while other populations extend along the west bank of the Snake River into western Idaho.[2]

Two subspecies are generally recognised:

  • Urocitellus canus canus - Oregon, California, Nevada
  • Urocitellus canus vigilis - Snake River region (eastern Oregon, western Idaho)

The native habitat of Merriam's ground squirrel is arid chaparral environments dominated by sagebrush, and, to a lesser extent, by greasewood and shadscale.[3] It is sometimes found in marginal juniper woodland and can be common in man-made pasture and fields.[2]

Behavior

Merriam's ground squirrel is a diurnal omnivore, feeding on a wide range of seeds, roots, and bulbs, as well as on insects, such as cicadas.[4] Although relatively little of its native habitat has been converted into farmland, where it does inhabit agricultural land, it may eat domesticated grains or alfalfa, and be considered as a pest. Known predators include barn owls and great horned owls, and presumably also include hawks, snakes, and various carnivorous mammals.[2]

They construct burrows, and rarely wander far from their entrances, typically having a home range of less than 1 hectare (2 acres). They spend most of the year hibernating; although there is some variation with local habitat, they generally emerge in early March, and become dormant again in early August. They give birth to a single litter of up to ten young each year in late April or early May.[4] The gestation period and duration of weaning are unknown, but are probably each in the range of three to four weeks.

They are quiet and secretive animals, with a shrill, squeaking, alarm call, and have been observed to climb low bushes in search of food and to be good swimmers.[2]

References

  1. ^ a b Yensen, E. & Hammerson, G. (NatureServe) (2008). "Spermophilus canus". IUCN Red List of Threatened Species. Version 2008. International Union for Conservation of Nature. Retrieved 8 January 2009.
  2. ^ a b c d e f Cole, F.R. & Wilson, D.E. (2009). "Urocitellus canus (Rodentia: Sciuridae)". Mammalian Species. 834: 1–8. doi:10.1644/834.1.
  3. ^ Feldhammer, G.A. (1979). "Vegetation and edaphic factors affecting abundance and distribution of small mammals in southeast Oregon". Great Basin Naturalist. 39 (3): 207–218.
  4. ^ a b Bailey, V. (1936). "The mammals and life zones of Oregon". North American Fauna. 55 (1): 155–158. doi:10.3996/nafa.55.0001.
This page was last edited on 30 October 2018, at 22:54
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.