Eliomys Quercinus
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The garden dormouse (''Eliomys quercinus'') is a
rodent Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are na ...
in the
dormouse A dormouse is a rodent of the family Gliridae (this family is also variously called Myoxidae or Muscardinidae by different taxonomists). Dormice are nocturnal animals found in Africa, Asia, and Europe. They are named for their long, dormant hibe ...
family.


Characteristics

The garden dormouse is gray or brown, with a whitish underside. It has black eye markings and large ears. Its hair is short, and its tail has a white tassel at the end. It is typically in head to body length, with a long tail. It weighs .


Distribution and habitat

In spite of its name, the garden dormouse's main habitat is the forest, though it can also be found in fruit-growing regions. It is particularly common in southern
Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
, but its range extends into the north. Garden dormice are often found in the
Alps The Alps () ; german: Alpen ; it, Alpi ; rm, Alps ; sl, Alpe . are the highest and most extensive mountain range system that lies entirely in Europe, stretching approximately across seven Alpine countries (from west to east): France, Sw ...
, the
Bavarian Forest The village of Zell in the Bavarian Forest The Bavarian Forest (German: ' or ''Bayerwald''; bar, Boarischa Woid) is a wooded, low-mountain region in Bavaria, Germany that is about 100 kilometres long. It runs along the Czech border and is con ...
, and the Ore Mountains. The species is also present in northern Germany, but that population is apparently not capable of large-scale reproduction. In the
Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...
, it is almost extirpated: in 2007, researchers reported finding only nine animals in two woods in the province of
Limburg Limburg or Limbourg may refer to: Regions * Limburg (Belgium), a province since 1839 in the Flanders region of Belgium * Limburg (Netherlands), a province since 1839 in the south of the Netherlands * Diocese of Limburg, Roman Catholic Diocese in ...
, where it used to be common. They suggested this is a result of the landscape becoming increasingly monotonous and due to climate change, which they said interrupts hibernation. To draw attention to the limits of the adaptability, the Swiss nature conservation organisation ''Pro Natura'' has named the garden dormouse "Animal of the Year" in 2022. The same year, using
camera traps A camera trap is a camera that is automatically triggered by a change in some activity in its vicinity, like presence of an animal or a human being. It is typically equipped with a motion sensor – usually a passive infrared (PIR) sensor ...
and ''Spurentunnel'' (a tunnel-like device that forces animals to step into an ink container, and leave footprints), the first recorded sightings of garden dormice in more than 100 years were made in
Büsserach Büsserach is a municipality in the district of Thierstein in the canton of Solothurn in Switzerland. History Büsserach is first mentioned in 1194 as ''Buezherach''. Geography Büsserach has an area, , of . Of this area, or 42.4% is used f ...
.


Behaviour and ecology

The garden dormouse is primarily
nocturnal Nocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnal meaning the opposite. Nocturnal creatures generally have highly developed sens ...
, sleeping in spherical nests in trees during the day. At night, they look for food, mainly eating larger
insects Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of j ...
, such as
grasshopper Grasshoppers are a group of insects belonging to the suborder Caelifera. They are among what is possibly the most ancient living group of chewing herbivorous insects, dating back to the early Triassic around 250 million years ago. Grasshopp ...
s and
beetle Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 describ ...
s, and
snail A snail is, in loose terms, a shelled gastropod. The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name ''snail'' is also used for most of the members of the molluscan class Gastro ...
s, eggs, young
nestling Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight s ...
s, small
rodent Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are na ...
s, and
spider Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species ...
s, as well as
berries A berry is a small, pulpy, and often edible fruit. Typically, berries are juicy, rounded, brightly colored, sweet, sour or tart, and do not have a stone or pit, although many pips or seeds may be present. Common examples are strawberries, raspb ...
,
fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particu ...
, and
nut Nut often refers to: * Nut (fruit), fruit composed of a hard shell and a seed, or a collective noun for dry and edible fruits or seeds * Nut (hardware), fastener used with a bolt Nut or Nuts may also refer to: Arts, entertainment, and media Co ...
s, such as
acorn The acorn, or oaknut, is the nut of the oaks and their close relatives (genera ''Quercus'' and '' Lithocarpus'', in the family Fagaceae). It usually contains one seed (occasionally two seeds), enclosed in a tough, leathery shell, and borne ...
s and
beech Beech (''Fagus'') is a genus of deciduous trees in the family Fagaceae, native to temperate Europe, Asia, and North America. Recent classifications recognize 10 to 13 species in two distinct subgenera, ''Engleriana'' and ''Fagus''. The ''Engle ...
nuts. While
omnivorous An omnivore () is an animal that has the ability to eat and survive on both plant and animal matter. Obtaining energy and nutrients from plant and animal matter, omnivores digest carbohydrates, protein, fat, and fiber, and metabolize the nutri ...
, the diet of dormice contains slightly more animal protein than vegetation. The mating period lasts from April to June. During this time, the female indicates her readiness to mate by squeaking loudly. The young are usually born in litters of three to seven, after a
gestation Gestation is the period of development during the carrying of an embryo, and later fetus, inside viviparous animals (the embryo develops within the parent). It is typical for mammals, but also occurs for some non-mammals. Mammals during pregna ...
period of 23 days. Blind and naked at birth, they open their eyes after about 18 days, and are nursed until they are one month old. They become independent at two months of age, but do not reach sexual maturity until the next year. They have a life expectancy of about five years. It is not unusual for a garden dormouse to eat one of its unfortunate rivals during the mating season. Cannibalism is also observed occasionally when the animal is coming out of hibernation. The garden dormouse is a host of the
Acanthocephala Acanthocephala (Greek , ', thorn + , ', head) is a phylum of parasitic worms known as acanthocephalans, thorny-headed worms, or spiny-headed worms, characterized by the presence of an eversible proboscis, armed with spines, which it uses to p ...
n intestinal parasite '' Moniliformis siciliensis'' in
Sicily (man) it, Siciliana (woman) , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = Ethnicity , demographics1_footnotes = , demographi ...
.


Classification

On the islands of the
Mediterranean Sea The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the ea ...
, all of the several subspecies of garden dormouse are very rare. These are the Sardinian garden dormouse (''E. q. sardus''), the Sicilian garden dormouse (''E. q. dichrurus''), the Liparian garden dormouse (''E. q. liparensis''), the Balearic garden dormouse (''E. q. gymnesicus'') and the
Formentera Formentera (, ) is the smallest and most southerly island of the Pityusic Islands group (comprising Ibiza and Formentera, as well as various small islets), which belongs to the Balearic Islands autonomous community (Spain). It covers an area of ...
Island garden dormouse (''E. q. ophiusae''), which is notable for its larger size and all-black tail.Purroy, F. J. & Varela, J. M. (2003) ''Guía de los Mamíferos de España. Península, Baleares y Canarias.'' Lynx Edicions, Barcelona The populations of western Asia and north Africa, on the other hand, have recently been separated into their own species, ''
Eliomys melanurus The Asian garden dormouse or large-eared garden dormouse, (''Eliomys melanurus'') is a species of rodent in the family Gliridae. It is found in Egypt, Iraq, Israel, Jordan, Lebanon, Libya, Saudi Arabia, Syria and Turkey. Its natural habitats ar ...
''.


References

:''This article includes information translated from the German and French Wikipedias.''


External links

* {{Taxonbar, from=Q465786 Dormice Rodents of Europe Mammals described in 1766 Taxa named by Carl Linnaeus