Amazon weasel

Last updated

Amazon weasel
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Mustelidae
Genus: Neogale
Species:
N. africana
Binomial name
Neogale africana
(Desmarest, 1818)
Amazon Weasel area.png
Amazon weasel range
Synonyms

Mustela africana

The Amazon weasel (Neogale africana), also known as the tropical weasel, is a species of New World weasel native to South America. It was first identified from a museum specimen mislabelled as coming from Africa, hence the scientific name. [2]

Contents

Taxonomy

Originally described in the genus Mustela , a 2021 study reclassified it into the genus Neogale along with two other former Mustela species, as well as the two species formerly classified in Neovison . [3]

Description

The largest of the three species of South American weasel, Amazon weasels measure 43 to 52 cm (17 to 20 in) in total length, including a tail 16 to 21 cm (6.3 to 8.3 in) long. They have a typical body form for weasels, with a long, slender, torso and short legs and ears. They have short fur which varies from reddish to dark brown on the upper body, and is pale orange-tan on the underparts. A stripe of fur the same colour as that on the upper body runs down the centre of the chest and throat. The whiskers are short and the soles of the feet almost hairless. Females have three pairs of teats. [2]

Distribution and habitat

Amazon weasels are known to inhabit the Amazon basin in north-central Brazil, northern Bolivia and eastern Peru and Ecuador. [4] However, the full extent of their range is unknown, and they probably also inhabit southern Colombia, Venezuela and the Guyanas. The region is covered by tropical rainforest, and, while detailed habitat preferences are unknown, the weasel has mostly been recovered near rivers. [1] [2] The Amazon weasel exhibits a unique scale-dependent pattern of habitat selection, favoring specific microhabitats characterized by varying vegetation density and prey availability, which is crucial for its survival in tropical and subtropical forests. [5]

Two subspecies are recognised: [2]

Biology and behaviour

The Amazon weasel is rarely seen and little is known of its habits. They eat rodents and other small mammals,[ citation needed ] and have been reported to construct burrows in the stumps of hollow trees. [6] They have been found from sea level to 1,400 m (4,600 ft), [4] and have been reported to swim in rivers or estuaries, sometimes far from the shore. [7]

Conservation status

The Amazon weasel is considered a Data Deficient species because scientists know little about them. [8] Their population is unknown [2] and they have only been registered anywhere 24 times (as of July 2024). [4] An Amazon weasel had never been filmed until 2024, when some coffee producers captured a short video of an individual in Bolivia as part of a citizen science monitoring program. [4] Despite the extremely small number of observations, Amazon weasels are listed as a Least Concern species on the IUCN Red List of Threatened Species because scientists believe they still have a sizable population living in the Amazonian forest. [8] It is not known whether this species can handle anthropogenic disturbances in the environment [8] and their numbers may drop significantly in the future due to the deforestation of the Amazon rainforest. [2]

Related Research Articles

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

Carnivora is an order of placental mammals that have specialized in primarily eating flesh, whose members are formally referred to as carnivorans. The order Carnivora is the sixth largest order of mammals, comprising at least 279 species on every major landmass and in a variety of habitats, ranging from the cold polar regions of Earth to the hyper-arid region of the Sahara Desert and the open seas. These mammals have a large array of diverse body plans with a wide diversity of shapes and sizes.

<span class="mw-page-title-main">Mustelidae</span> Family of mammals

The Mustelidae are a diverse family of carnivoran mammals, including weasels, badgers, otters, polecats, martens, grisons, and wolverines. Otherwise known as mustelids, they form the largest family in the suborder Caniformia of the order Carnivora with about 66 to 70 species in nine subfamilies.

<span class="mw-page-title-main">Weasel</span> Mammal of the mustelid family

Weasels are mammals of the genus Mustela of the family Mustelidae. The genus Mustela includes the least weasels, polecats, stoats, ferrets, and European mink. Members of this genus are small, active predators, with long and slender bodies and short legs. The family Mustelidae, or mustelids, is often referred to as the "weasel family". In the UK, the term "weasel" usually refers to the smallest species, the least weasel (M. nivalis), the smallest carnivoran species.

<span class="mw-page-title-main">Kinkajou</span> South American honeyeater (Potos flavus)

The kinkajou is a tropical rainforest mammal of the family Procyonidae related to olingos, coatis, raccoons, and the ringtail and cacomistle. It is the only member of the genus Potos and is also known as the "honey bear". Though kinkajous are arboreal, they are not closely related to any other tree-dwelling mammal group.

<span class="mw-page-title-main">Long-tailed weasel</span> Species of weasel native to the Americas

The long-tailed weasel, also known as the bridled weasel, masked ermine, or big stoat, is a species of weasel found in North, Central, and South America. It is distinct from the short-tailed weasel, also known as a "stoat", a close relation in the genus Mustela that originated in Eurasia and crossed into North America some half million years ago; the two species are visually similar, especially the black tail tip.

<span class="mw-page-title-main">Least weasel</span> Species of mammal

The least weasel, little weasel, common weasel, or simply weasel is the smallest member of the genus Mustela, family Mustelidae and order Carnivora. It is native to Eurasia, North America and North Africa, and has been introduced to New Zealand, Malta, Crete, the Azores, and São Tomé. It is classified as least concern by the IUCN, due to its wide distribution and large population throughout the Northern Hemisphere.

<span class="mw-page-title-main">Indonesian mountain weasel</span> Species of carnivore

The Indonesian mountain weasel is a species of weasel that lives on the islands of Java and Sumatra in Indonesia at elevations over 1,000 metres (3,300 ft). They live in mountainous, tropical, and rainforest areas. Indonesian mountain weasels have a body length of 280–300 mm (11–12 in) and a tail length of 130–150 mm (5–6 in). They are reddish-brown in color.

<span class="mw-page-title-main">Sea mink</span> Extinct species of mustelid mammal from eastern North America

The sea mink is a recently extinct species of mink that lived on the eastern coast of North America around the Gulf of Maine on the New England seaboard. It was most closely related to the American mink, with continuing debate about whether or not the sea mink should be considered a subspecies of the American mink or a species of its own. The main justification for a separate species designation is the size difference between the two minks, but other distinctions have been made, such as its redder fur. The only known remains are bone fragments unearthed in Native American shell middens. Its actual size is speculative, based largely on tooth remains.

<span class="mw-page-title-main">Southern naked-tailed armadillo</span> Species of mammal

The southern naked-tailed armadillo is a species of small armadillo from South America.

<span class="mw-page-title-main">Colombian weasel</span> Species of carnivore

The Colombian weasel, also known as Don Felipe's weasel, is a very rare species of New World weasel only known with certainty from the departments of Huila and Cauca in Colombia and nearby northern Ecuador. Both its scientific and alternative common name honours the mammalogist Philip "Don Felipe" Hershkovitz.

M. africana may refer to:

<span class="mw-page-title-main">Tayra</span> Genus of carnivores

The tayra is an omnivorous animal from the mustelid family, native to the Americas. It is the only species in the genus Eira.

<i>Neogale</i> Genus of mustelids

Neogale is a genus of carnivorous, highly active small mammals belonging to the Mustelidae family. Neogale contains four species: the Amazon weasel, the long and short-tailed weasels, and the American mink. Native to the Americas, members of the genus can be found as far north as Alaska and as far south as Argentina and Bolivia. Across this distribution, they thrive in a range of habitats, from the deep-freezes of the Alaskan and Canadian boreal forests to the arid desert southwest, and from the humid tropics of Central and South America to the windswept foothills of the Andes and northern Patagonia.

Mustela aistoodonnivalis, the missing-toothed pygmy weasel or Sichuan weasel, is a species of weasel that inhabits mountains in the Shaanxi and Sichuan provinces of China.

References

  1. 1 2 Emmons, L.; Helgen, K. (2016). "Mustela africana". IUCN Red List of Threatened Species . 2016: e.T14025A45200982. doi: 10.2305/IUCN.UK.2016-1.RLTS.T14025A45200982.en . Retrieved 14 March 2022.
  2. 1 2 3 4 5 6 Ramírez-Chaves, H.E.; Arango-Guerra, H.L.; Patterson, B.D. (2014). "Mustela africana (Carnivora: Mustelidae)" (PDF). Mammalian Species. 46 (917): 110–115. doi: 10.1644/917.1 .
  3. Patterson, Bruce D.; Ramírez-Chaves, Héctor E.; Vilela, Júlio F.; Soares, André E. R.; Grewe, Felix (2021). "On the nomenclature of the American clade of weasels (Carnivora: Mustelidae)". Journal of Animal Diversity. 3 (2): 1–8. doi: 10.52547/JAD.2021.3.2.1 . ISSN   2676-685X. S2CID   236299740.
  4. 1 2 3 4 Anderson, Natali (2024-07-17). "Extremely Rare Amazon Weasel Captured on Video in Bolivia | Sci.News". Sci.News: Breaking Science News. Retrieved 2024-07-22.
  5. Caviedes-Solis, I. et al. (2022). Distribution patterns of South American mustelids (Carnivora: Mustelidae). Journal of Mammalogy, 103(4), 900-908.
  6. Emmons, L.H. (1997). Neotropical Rainforest Mammals, 2nd ed. University of Chicago Press ISBN   0-226-20721-8
  7. Tate, G.H.H. (August 1931). "Random observations on habits of South American mammals". Journal of Mammalogy. 12 (3): 248–256. doi:10.2307/1373874. JSTOR   1373874.
  8. 1 2 3 Mattice, Ashley. "Mustela africana (tropical weasel)". Animal Diversity Web. Retrieved 2024-07-22.