Volume 35 Issue 4
Jul.  2014
Turn off MathJax
Article Contents

Zhi-Gui ZHANG, De-Yan GE. Postnatal ontogenetic size and shape changes in the craniums of plateau pika and woolly hare (Mammalia:Lagomorpha). Zoological Research, 2014, 35(4): 287-293. doi: 10.13918/j.issn.2095-8137.2014.4.287
Citation: Zhi-Gui ZHANG, De-Yan GE. Postnatal ontogenetic size and shape changes in the craniums of plateau pika and woolly hare (Mammalia:Lagomorpha). Zoological Research, 2014, 35(4): 287-293. doi: 10.13918/j.issn.2095-8137.2014.4.287

Postnatal ontogenetic size and shape changes in the craniums of plateau pika and woolly hare (Mammalia:Lagomorpha)

doi: 10.13918/j.issn.2095-8137.2014.4.287
  • Received Date: 2013-12-04
  • Rev Recd Date: 2014-04-14
  • Publish Date: 2014-07-08
  • In the present study, postnatal ontogenetic size and shape changes in the cranium of two lagomorph species, the plateau pika (Ochotona curzoniae) and woolly hare (Lepus oiostolus), were investigated by geometric morphometrics. The ontogenetic size and shape changes of their cranium exhibited different growth patterns in response to similar environmental pressures on the Qinghai-Tibetan Plateau. The overall size change in the cranium of the plateau pika was slower than that of the woolly hare. The percentage of ontogenetic shape variance explained by size in the woolly hare was greater than that in the plateau pika. The overall shape of the cranium was narrowed in both species, and morphological components in relation to neural maturity showed negative allometry, while those responsible for muscular development showed isometric or positive allometry. The most remarkable shape variations in the plateau pika were associated with food acquisition (temporalis development), though other remarkable shape variations in the incisive and palatal foramen in the ventral view were also observed. The most important shape change in the woolly hare was demonstrated by the elongation of the nasal bones, expansion of the supra-orbital process and shape variation of the neurocranium.
  • 加载中
  • [1] Bramble DM. 1989. Cranial specialization and locomotor habit in the lagomorpha. American Zoologist, 29(1): 303-317.
    [2] Ge DY, Lv XF, Xia L, Huang CM, Yang QS. 2012. Geometric morphometrics of postnatal size and shape changes in the cranium of cape hare (Lagomorpha, Leporidea, Lepus capensis). Acta Theriologica Sinica, 32(1): 12-24.
    [3] Ge DY, Wen ZX, Xia L, Zhang ZQ, Erbajeva M, Huang CM, Yang QS. 2013. Evolutionary History of Lagomorphs in Response to Global Environmental Change. PLoS ONE, 8(4): e59668.
    [4] Goodall C. 1991. Procrustes Methods in the Statistical-Analysis of Shape. Journal of the Royal Statistical Society Series B-Methodological, 53(2): 285-339.
    [5] Lin LK, Shiraishi S. 1992. Skull growth and variation in the Formosan wood mouse, Apodemus semotus.Journal of the Faculty of Agriculture Kyushu University, 37(1): 51-69.
    [6] Lissovsky AA, Yang Q, Pilnikov AE. 2008. Taxonomy and distribution of the pikas (Ochotona, Lagomorpha) of alpina-hyperborea group in North-East China and adjacent territories. Russian Journal of Theriology, 7(1): 5-16
    [7] Lu X. 2003. Postnatal growth of skull linear measurements of Cape hare Lepus capensis in northern China: An analysis in an adaptive context. Biological Journal of the Linnean Society, 78(3): 343-353.
    [8] Wible JR, 2007. On the cranial osteology of the Lagomorpha. Bulletin of Carnegie Museum of Natural History, 39(5): 213-234.
    [9] Rohlf FJ. 2002. TPS series. Department of Ecology and Evolution, State University of Newyork, Stony Brook, New York. http://life.bio.sunysb.edu/morph/.
    [10] Sheets HD. 2003. IMP-Integrated Morphometrics Package. Department of Physics, Canisius College, Buffalo, New York. http://www.canisius.edu/~sheets/morphsoft.html.
    [11] Smith AT, Weston ML. 1990. Ochotona princeps.Mammalian Species, 352: 1-8.
    [12] Smith AT, Xie Y. 2009. A Guide to the Mammals of China. Princeton & Oxford: Princeton University Press. 1-544.
    [13] Tanaka R. 1942. A biostatistical analysis of Apodemus agmrius from Formosa with special reference to its systematic characters. Memoirs of the Faculty of Science and Agriculture, Taihoku Imperial University/Taihoku, 23, 212-285.
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article Metrics

Article views(390) PDF downloads(1146) Cited by()

Related
Proportional views

Postnatal ontogenetic size and shape changes in the craniums of plateau pika and woolly hare (Mammalia:Lagomorpha)

doi: 10.13918/j.issn.2095-8137.2014.4.287

Abstract: In the present study, postnatal ontogenetic size and shape changes in the cranium of two lagomorph species, the plateau pika (Ochotona curzoniae) and woolly hare (Lepus oiostolus), were investigated by geometric morphometrics. The ontogenetic size and shape changes of their cranium exhibited different growth patterns in response to similar environmental pressures on the Qinghai-Tibetan Plateau. The overall size change in the cranium of the plateau pika was slower than that of the woolly hare. The percentage of ontogenetic shape variance explained by size in the woolly hare was greater than that in the plateau pika. The overall shape of the cranium was narrowed in both species, and morphological components in relation to neural maturity showed negative allometry, while those responsible for muscular development showed isometric or positive allometry. The most remarkable shape variations in the plateau pika were associated with food acquisition (temporalis development), though other remarkable shape variations in the incisive and palatal foramen in the ventral view were also observed. The most important shape change in the woolly hare was demonstrated by the elongation of the nasal bones, expansion of the supra-orbital process and shape variation of the neurocranium.

Zhi-Gui ZHANG, De-Yan GE. Postnatal ontogenetic size and shape changes in the craniums of plateau pika and woolly hare (Mammalia:Lagomorpha). Zoological Research, 2014, 35(4): 287-293. doi: 10.13918/j.issn.2095-8137.2014.4.287
Citation: Zhi-Gui ZHANG, De-Yan GE. Postnatal ontogenetic size and shape changes in the craniums of plateau pika and woolly hare (Mammalia:Lagomorpha). Zoological Research, 2014, 35(4): 287-293. doi: 10.13918/j.issn.2095-8137.2014.4.287
Reference (13)

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return