Cottontail rabbit

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Cottontail rabbits [1]
Wild rabbit us.jpg
Eastern cottontail rabbit (S. floridanus)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Lagomorpha
Family: Leporidae
Genus: Sylvilagus
J. E. Gray, 1867
Type species
Lepus sylvaticus
Bachman, 1837
(=Lepus sylvaticus floridanus J. A. Allen, 1890)
Species

27, see text

Sylvilagus scientific range.jpg
Eastern cottontail North American Cottontail Rabbit.jpg
Eastern cottontail

Cottontail rabbits are in the Sylvilagus genus, which is in the Leporidae family. They are found in the Americas. [1] Most Sylvilagus species have stub tails with white undersides that show when they retreat, giving them their characteristic name. However, this feature is not present in all Sylvilagus, nor is it unique to the genus.

Contents

The genus is widely distributed across North America, Central America, and northern and central South America, though most species are confined to some particular regions. Most species live in nests called forms, and all have altricial young. An adult female averages three litters per year, which can occur in any season. Occurrence and litter size depend on several factors, including time of the year, weather, and location. The average litter size is four, but can range from as few as two to as many as eight, most of whom do not go on to survive to adulthood.

Cottontail rabbits show a greater resistance to myxomatosis than European rabbits. [2]

Evolution

Cottontails are one of several species of Sylvilagus. Their closest relative is Brachylagus , the pygmy rabbit. They are more distantly related to the European and other rabbits, and more distantly still to the hares. The cladogram is based on mitochondrial gene analysis. [3] [4]

Cottontails

Sylvilagus audubonii

Sylvilagus nuttallii

Sylvilagus aquaticus

Sylvilagus palustris

Sylvilagus transitionalis

Sylvilagus obscurus

Sylvilagus floridanus

Sylvilagus brasiliensis

Sylvilagus bachmani

Sylvilagus mansuetus

Sylvilagus andinus

Lifespan

The lifespan of a cottontail averages about two years, depending on the location. Almost every living carnivorous creature comparable to or larger in size than these lagomorphs is a potential predator, including such diverse creatures as domestic dogs, cats, humans, snakes, coyotes, mountain lions, foxes, and if the cottontail is showing signs of illness, even squirrels. The cottontail's most frequent predators are various birds of prey. Cottontails can also be parasitized by botfly species including Cuterebra fontinella . [5] Newborn cottontails are particularly vulnerable to these attacks. Cottontails use burrows vacated by other animals, and the burrows are used for long enough periods that predators can learn where the cottontails reside and repeatedly return to prey on the lagomorphs. Though cottontails are prolific animals that can have multiple litters in a year, few of the resulting offspring survive to adulthood. Those that do survive grow very quickly and are full grown adults at three months. [6]

Eating mechanics

In contrast to rodents (squirrels, etc.), which generally sit on their hind legs and hold food with their front paws while feeding, cottontail rabbits eat while on all fours. Cottontail rabbits typically only use their nose to move and adjust the position of the food that it places directly in front of its front paws on the ground. The cottontail will turn the food with its nose to find the cleanest part of the vegetation (free of sand and inedible parts) to begin its meal. The only time a cottontail uses its front paws while feeding is when vegetation is above its head on a living plant, at which point the cottontail will lift its paw to bend the branch to bring the food within reach. [7]

Cottontails are rarely found foraging for food on windy days, because the wind interferes with their hearing capabilities. Hearing an incoming predator before they get close enough to attack is their primary defense mechanism. [8]

Species

Pleistocene fossil Fossil Sylvilagus.jpg
Pleistocene fossil

The subgenera were described in the 19th century based on limited morphological data that have been shown to not be of great use, nor to depict phylogenetic relationships. Molecular studies (limited in scope to the mitochondrial 12S gene) have shown that the currently accepted subgeneric structure, [1] while of some heuristic value, is unlikely to withstand additional scrutiny. [9]

SubgenusImageCommon nameScientific nameDistribution
Microlagus Sylvilagus bachmani 01035t.JPG Brush rabbit Sylvilagus bachmaniWest coast of North America, from the Columbia River in Oregon to the southern tip of the Baja California Peninsula. Isolated subspecies, San Jose brush rabbit, on San José Island in the Gulf of California.
Sylvilagus Joshua Tree NP - Cottontail - 1d.jpg Desert cottontail Sylvilagus auduboniiWestern United States from eastern Montana to western Texas, California and in Northern and Central Mexico
Sylvilagus cunicularius2.jpg Mexican cottontail Sylvilagus cuniculariusMexico from the state of Sinaloa to the states of Oaxaca and Veracruz
Tochtli-Rabbit-Conejo.jpg Eastern cottontail Sylvilagus floridanuseastern and south-central United States, southern Canada, eastern Mexico, Central America and northernmost South America
Sylvilagus graysoni.jpg Tres Marias cottontail Sylvilagus graysoniTres Marias Islands, Mexico
Sylvilagus nuttallii (29723452411).jpg Mountain cottontail Sylvilagus nuttallii Intermountain west of Canada and the United States
Sylvilagus obscurus 1.jpg Appalachian cottontail or Allegheny cottontailSylvilagus obscuruseastern United States
Sylvilagus robustus imported from iNaturalist photo 64270774 on 9 September 2021.jpg Robust cottontail Sylvilagus holznerisouthwestern United States and adjacent Mexico
New England cottontail rabbit animal sylvilagus transitionalis.jpg New England cottontail Sylvilagus transitionalisNew England, specifically from southern Maine to southern New York
Tapeti Sylvilagus brasiliensis andinus (12687595295).jpg Andean tapeti Sylvilagus andinusVenezuela south to Peru
Bogota tapeti Sylvilagus apollinarisColombia
Swamp Rabbit (Sylvilagus aquaticus).jpg Swamp rabbit Sylvilagus aquaticussouthern United States
Sylvilagus brasiliensis1.jpg Common tapeti Sylvilagus brasiliensisBrazil (Venezuela to Argentina when the many unclassified populations are included)
Ecuadorian tapeti Sylvilagus daulensisEcuador
Dice's cottontail Sylvilagus diceiCosta Rica and Panama
Fulvous tapeti Sylvilagus fulvescensColombia
Central American tapeti Sylvilagus gabbiMexico to Panama
Northern tapeti Sylvilagus incitatusSan Miguel Island, Panama
Omilteme cottontail Sylvilagus insonusGuerrero, Mexico
Nicefor's tapeti Sylvilagus niceforiColombia
Marsh Rabbit.jpg Marsh rabbit Sylvilagus palustrissoutheastern United States
Suriname tapeti Sylvilagus parentumwestern Suriname
Colombian tapeti Sylvilagus salentusColombia
Santa Marta tapeti Sylvilagus sanctaemartaeColombia
Western tapeti Sylvilagus surdasterEcuador
Coastal tapeti Sylvilagus tapetillusRio de Janeiro, Brazil
Venezuelan lowland rabbit Sylvilagus varynaensiswestern Venezuela

Prehistoric species

Related Research Articles

<span class="mw-page-title-main">Rabbit</span> Mammals of the family Leporidae

Rabbits, also known as bunnies or bunny rabbits, are small mammals in the family Leporidae, which is in the order Lagomorpha. Oryctolagus cuniculus is the European rabbit, including its descendants, the world's 305 breeds of domestic rabbit. Sylvilagus includes 13 wild rabbit species, among them the seven types of cottontail. The European rabbit, which has been introduced on every continent except Antarctica, is familiar throughout the world as a wild prey animal, a domesticated form of livestock and a pet. With its widespread effect on ecologies and cultures, in many areas of the world, the rabbit is a part of daily life – as food, clothing, a companion, and a source of artistic inspiration.

<span class="mw-page-title-main">Lagomorpha</span> Order of mammals

The lagomorphs are the members of the taxonomic order Lagomorpha, of which there are two living families: the Leporidae and the Ochotonidae (pikas). There are 110 recent species of lagomorph of which 109 are extant, including 10 genera of rabbits, 1 genus of hare and 1 genus of pika. The name of the order is derived from the Ancient Greek lagos + morphē.

<span class="mw-page-title-main">Leporidae</span> Family of lagomorphs

Leporidae is the family of rabbits and hares, containing over 70 species of extant mammals in all. The Latin word Leporidae means "those that resemble lepus" (hare). Together with the pikas, the Leporidae constitute the mammalian order Lagomorpha. Leporidae differ from pikas in that they have short, furry tails and elongated ears and hind legs.

<span class="mw-page-title-main">Desert cottontail</span> Species of mammal

The desert cottontail, also known as Audubon's cottontail, is a New World cottontail rabbit, and a member of the family Leporidae. Unlike the European rabbit, they do not form social burrow systems, but compared with some other leporids, they are extremely tolerant of other individuals in their vicinity.

<span class="mw-page-title-main">Eastern cottontail</span> Species of mammal

The eastern cottontail is a New World cottontail rabbit, a member of the family Leporidae. It is the most common rabbit species in North America.

<span class="mw-page-title-main">Common tapeti</span> Species of mammal

The common tapeti, also known as the Brazilian cottontail, forest cottontail, or (formerly) simply tapeti is a species of cottontail rabbit. It is small to medium-sized with a small, dark tail, short hind feet, and short ears. As traditionally defined, its range extends from southern Mexico to northern Argentina, but this includes several distinctive population that have since been split into separate species. Under this narrower definition, the true tapeti only occurs in the Atlantic Rainforest of coastal northeastern Brazil and it is classified as "Endangered" by the IUCN. The American Society of Mammalogists concurs, but also tentatively classifies several distinct populations that have not yet received proper species names into S. brasiliensis, and thus considers it to range from Venezuela south to Argentina.

<span class="mw-page-title-main">Mexican cottontail</span> Species of mammal

The Mexican cottontail is a species of cottontail rabbit in the family Leporidae. It is endemic to Mexico where its natural habitats are temperate forests, subtropical or tropical dry forests and pastureland.

<span class="mw-page-title-main">Dice's cottontail</span> Species of mammal

Dice's cottontail is a species of cottontail rabbit in the family Leporidae. It is found in Costa Rica and Panama, in páramo and cloud forest habitats.

<span class="mw-page-title-main">Tres Marias cottontail</span> Species of mammal

The Tres Marias cottontail or Tres Marias rabbit is a species of mammal in the family Leporidae.

<span class="mw-page-title-main">Mountain cottontail</span> Species of mammal

The mountain cottontail or Nuttall's cottontail is a species of mammal in the family Leporidae. It is found in Canada and the United States.

<span class="mw-page-title-main">Marsh rabbit</span> Species of mammal

The marsh rabbit is a small cottontail rabbit found in marshes and swamps of coastal regions of the Eastern and Southern United States. It is a strong swimmer and found only near regions of water. It is similar in appearance to the eastern cottontail but is characterized by smaller ears, legs, and tail.

<span class="mw-page-title-main">Robust cottontail</span> Species of mammal

The robust cottontail or Holzner's cottontail is a species of cottontail rabbit native to high-altitude regions of the southwestern United States and western Mexico.

<i>Hypolagus</i> Extinct genus of lagomorph

Hypolagus is an extinct genus of lagomorph, first recorded in the Hemingfordian of North America. It entered Asia during the early Turolian and spread to Europe not much later, where it survived until the Middle Pleistocene. Though unknown in the Iberian Peninsula, fossils of this genus have been found in the Balearic Islands, suggesting an eastern migration during the dry period in the Mediterranean region known as the Messinian Salinity Crisis.

<span class="mw-page-title-main">Suriname tapeti</span> Species of rabbit

The Suriname tapeti or Suriname lowland forest cottontail is a South American species of cottontail rabbit described in 2017. It is known from the lowlands of western Suriname, and was described from specimens collected by Dutch scientists in the 1980s. Its size is relatively large for a South American cottontail rabbit. The rabbit is likely already threatened due to environmental degradation in the region, and its discovery could boost conservation efforts in the area. It was discovered by Portland State University Professor Luis Ruedas.

<span class="mw-page-title-main">Coastal tapeti</span> Species of mammal

The coastal tapeti, also known as the Rio de Janeiro dwarf cottontail or dwarf tapeti, is a species of cottontail rabbit native to Brazil. Known from only three specimens, captured in the late nineteenth century in the Paraíba Valley, it was for a long time considered to be a subspecies of the common tapeti. Slightly smaller than its close relative, analysis in 2017 confirmed that it is sufficiently distinct in both appearance and genetics to be considered a species in its own right. Due to destruction of its putative habitat in the densely populated Paraíba Valley, it is unclear whether or not the species still survives in the present day.

<span class="mw-page-title-main">Andean tapeti</span> Species of mammal

The Andean tapeti or Andean cottontail is a species of cottontail rabbit native to Colombia, Venezuela, Peru and Ecuador. It was previously considered a subspecies of the common tapeti. Living at high elevations in the treeless Páramo of the Andes, analysis in 2017 confirmed that it is sufficiently distinct in both appearance and genetics to be considered a species in its own right. Although widespread, it remains poorly known, as few studies have been conducted on its biology and habits as distinct from those of the tapeti

<span class="mw-page-title-main">Central American tapeti</span> Species of mammal

The Central American tapeti or Gabbi's cottontail is a species of cottontail rabbit native to southern Mexico and much of Central America. It was previously considered a subspecies of the common tapeti but analysis in 2017 confirmed that it is sufficiently distinct in both appearance and genetics to be considered a species in its own right. The name Gabbi's cottontail comes from American paleontologist William More Gabb.

References

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  2. Carter, G.R.; Wise, D.J. (2006). "Poxviridae". A Concise Review of Veterinary Virology. Retrieved 2006-06-13.
  3. Ruedas, Luis A.; Marques Silva, Sofia; et al. (October 2019). "Taxonomy of the Sylvilagus brasiliensis complex in Central and South America (Lagomorpha: Leporidae)". Journal of Mammalogy. 100 (5): 1599–1630. doi: 10.1093/jmammal/gyz126 . S2CID   202855918.
  4. Kraatz, Brian P.; et al. (2015). "Ecological correlates to cranial morphology in Leporids (Mammalia, Lagomorpha)". PeerJ. 3: e844. doi: 10.7717/peerj.844 . PMC   4369340 . PMID   25802812.
  5. Jennison CA, Rodas LR, Barrett GW (2006). "Cuterebra fontinella parasitism on Peromyscus leucopus and Ochrotomys nuttalli". Southeastern Naturalist. 5 (1): 157–168. doi:10.1656/1528-7092(2006)5[157:CFPOPL]2.0.CO;2.
  6. "Sylvilagus floridanus" . Retrieved 28 June 2017.
  7. "Small mammals" (PDF).
  8. "Rabbits and Hares".
  9. Ruedas LA, Silva SM, French JM, Platt II RN, Salazar-Bravo J, Mora JM, Thompson CW (February 9, 2017). "A prolegomenon to the systematics of South American cottontail rabbits (Mammalia, Lagomorpha, Leporidae: Sylvilagus): designation of a neotype for S. brasiliensis (Linnaeus, 1758), and restoration of S. andinus (Thomas, 1897) and S. tapetillus Thomas, 1913". Miscellaneous Publications. Ann Arbor: Museum of Zoology, University of Michigan (205): i–iv, 1–67. hdl:2027.42/136089. ISSN   0076-8405.