
(c) Francesco Rovero (MUSE), some rights reserved (CC BY-SA) · cc-by-sa
Grey-faced sengi
Sign in to saveAlso known as Rhynchocyon udzungwensis, Grey-faced elephant-shrew, grey-faced elephant-shrew
species of elephant shrew found in Tanzania
Species
VulnerableGrey-faced Sengi
species
二名法 Rhynchocyon udzungwensisF. Rovero and G. Rathbun, 2008 灰臉象尖鼠(學名Rhynchocyon udzungwensis),又名灰臉森吉,是一種象鼩。 目录 1 特徵 2 發現 3 棲息地 4 繁殖 5 威脅 6 參考 7 外部連結 特徵 灰臉象尖鼠的毛很稀疏及有光澤,頭部呈灰色,身體則呈鮮紅色。背上有一很闊的褐紫紅色帶,腹部及尾巴呈淺褐色。它們的體型稍大,上顎的牙齒較長。它們一般長56.4厘米及重711克。[2] 發現 灰臉象尖鼠於2005年被鏡頭捕捉到並確認為未知的象鼩。[3]這些結果後來送交到加州科學院(California Academy of Sciences)的Galen Rathbun。他後來出發尋找灰臉象尖鼠,但2006年的旅程卻沒有發現。他指灰臉象尖鼠是126年以來發現的新物種。 棲息地 灰臉象尖鼠是坦桑尼亞中南部烏德宗瓦山脈(Udzungwa Mountains)的特有種。[2]由於山脈被隔離,當中發展了很廣闊的生物多樣性。在這裡很多物種都是特有的,在其他地方是沒有的。[4]灰臉象尖鼠棲息在山脈中的兩個保護區內,包括山區及亞山區森林。 繁殖 灰臉象尖鼠的數量估計有50-80隻,雄鼠與雌鼠的比例為1:1。它們會以葉子及土壤來築巢。一株樹上可以有4-5個巢。每胎約有1-2隻幼鼠。就它們的繁殖所知不多。 威脅 灰臉象尖鼠的主要威脅是人類的人口膨脹。非洲人口膨脹令很多森林及當中的生物面臨威脅。山火也是一種間接的威脅。[2]加上它們的數量有限,棲息地的破壞會嚴重影響。另外有指獵殺也威脅它們,但需更多證據支持。 保育措施包括教育大眾有關保護灰臉象尖鼠及其天然棲息地的重要。另外,它們棲息在保育區內也可以保護它們免受捕獵及人口膨脹的影響。研究也令學者對它們有更多的認識,可以監察它們的數量。[5] 參考 ^ Rhynchocyon udzungwensis. IUCN Red List of Threatened Species 2010. International Union for Conservation of Nature. 2008. ^ 2.0 2.1 2.2 Rovero F., Rathbun G.B., Perkins A., Jones T., Ribble D.O., Leonard C., Mwakisoma R.R. A new species of giant sengi or elephant-shrew (genus Rhynchocyon) highlights the exceptional biodiversity of the Udzungwa Mountains of Tanzania. Journal of Zoology. 2008, 274: 1
via IUCN
Wikidata facts
- Instance of
- taxon
- Parent taxon
- Rhynchocyon
- Named after
- Udzungwa Mountains
- Image
- Rhynchocyon udzungwensis Tanzania F. Rovero.jpg
Show 8 more facts
- taxon rank
- species
- IUCN conservation status
- Vulnerable
- Commons category
- Rhynchocyon udzungwensis
- taxon name
- Rhynchocyon udzungwensis
- Commons gallery
- Rhynchocyon udzungwensis
- taxon common name
- Graugesichts-Rüsselhündchen
- short name
- R. udzungwensis
- time period
- Holocene
Sources (1)
via Wikidata · CC0
~7 min read
Encyclopedic overview
The grey-faced sengi (Rhynchocyon udzungwensis) is a species of elephant shrew that is endemic to the Udzungwa Mountains of south-central Tanzania. The discovery of the species was announced in January 2008; only 15 species of elephant shrew were known until then, and the last discovery was made more than 120 years ago. As the name implies, the species is characterised by a distinctive grey face and a black rump, as well as being larger than the other species of elephant shrews.
Description
Excerpted from Wikipedia’s “Grey-faced sengi” article, available under the CC BY-SA 4.0 licence.
Gallery (2)
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