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灰脸象尖鼠

灰脸象尖鼠
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 哺乳纲 Mammalia
目: 象鼩目 Macroscelidea
科: 象鼩科 Macroscelididae
属: 东非象鼩属 Rhynchocyon
种:
灰脸象尖鼠 R. udzungwensis
二名法
Rhynchocyon udzungwensis
F. Rovero and G. Rathbun, 2008

灰脸象尖鼠学名Rhynchocyon udzungwensis),又名灰脸森吉,是一种象鼩

特征

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灰脸象尖鼠的毛很稀疏及有光泽,头部呈灰色,身体则呈鲜红色。背上有一很阔的褐紫红色带,腹部及尾巴呈浅褐色。它们的体型稍大,上颚的牙齿较长。它们一般长56.4厘米及重711克。[2]

发现

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灰脸象尖鼠于2005年被镜头捕捉到并确认为未知的象鼩[3]这些结果后来送交到加州科学院(California Academy of Sciences)的Galen Rathbun。他后来出发寻找灰脸象尖鼠,但2006年的旅程却没有发现。他指灰脸象尖鼠是126年以来发现的新物种

栖息地

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灰脸象尖鼠是坦桑尼亚中南部乌德宗瓦山脉(Udzungwa Mountains)的特有种[2]由于山脉被隔离,当中发展了很广阔的生物多样性。在这里很多物种都是特有的,在其他地方是没有的。[4]灰脸象尖鼠栖息在山脉中的两个保护区内,包括山区及亚山区森林

繁殖

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灰脸象尖鼠的数量估计有50-80只,雄鼠与雌鼠的比例为1:1。它们会以叶子土壤来筑巢。一株树上可以有4-5个巢。每胎约有1-2只幼鼠。就它们的繁殖所知不多。

威胁

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灰脸象尖鼠的主要威胁是人类的人口膨胀。非洲人口膨胀令很多森林及当中的生物面临威胁。山火也是一种间接的威胁。[2]加上它们的数量有限,栖息地的破坏会严重影响。另外有指猎杀也威胁它们,但需更多证据支持。

保育措施包括教育大众有关保护灰脸象尖鼠及其天然栖息地的重要。另外,它们栖息在保育区内也可以保护它们免受捕猎及人口膨胀的影响。研究也令学者对它们有更多的认识,可以监察它们的数量。[5]

参考

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  1. ^ Rovero, F. & Doggart, N. Rhynchocyon udzungwensis. The IUCN Red List of Threatened Species 2008. [2010-11-20]. 
  2. ^ 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: 126–33. doi:10.1111/j.1469-7998.2007.00363.x. 
  3. ^ Stephanie Stone. Scientists discover new species of giant elephant-shrew. 2008-02-01 [2010-11-21]. (原始内容存档于2020-08-08). 
  4. ^ Jeremy Hance. Giant shrew discovered in Tanzania. monabay.com. 2008-02-01 [2010-11-21]. (原始内容存档于2012-07-11). 
  5. ^ Aim and objectives. The Udzungwa Ecological Monitoring Centre. [2010-11-21]. (原始内容存档于2009-04-26). 

外部链接

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灰脸象尖鼠
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