dc.contributor.author |
Huffman, M.A. |
|
dc.contributor.author |
Kumara, R. |
|
dc.contributor.author |
Nahallage, C.A.D. |
|
dc.contributor.author |
Kawamoto, Y. |
|
dc.contributor.author |
Jayaweera, P.M. |
|
dc.date.accessioned |
2017-10-20T06:42:45Z |
|
dc.date.available |
2017-10-20T06:42:45Z |
|
dc.date.issued |
2016 |
|
dc.identifier.citation |
Huffman, M.A., Kumara, R., Nahallage, C.A.D., Kawamoto, Y., Jayaweera, P.M. (2016). "The Relationship between Tail Length and Elevation in Toque Macaques (Macaca sinica) in the Natural Habitat: usinga Quick Non-Invasive Method for Measuring Body to Tail Proportions", Proceedings of Asian Primate Symposium 2016, p. 64 |
en_US, si_LK |
dc.identifier.uri |
http://dr.lib.sjp.ac.lk/handle/123456789/5948 |
|
dc.description.abstract |
Attached |
en_US, si_LK |
dc.description.abstract |
The toque macaque o f Sri Lanka is classified into 3 sub-species; Macaca sinica sinica (dry zone),
M. s. aurifrons (wet zone) and M. s. opisthomelas (hill zone), based on a combination o f
phenotypical traits and climatic and ecological habitat distribution. We investigated the
relationship between altitude and sub-species on relative tail length. Digital profile photographs
were taken of 167 individual toque macaques from 27 localities distributed along elevationaf'
(2~2129 masl) and climatic zones across the island. From these photos we created a pixelated
proxy for tail length (base to tip) and body trunk length (base o f neck to base o f tail) o f each
individual macaques using “Home o f LibreCAD, 2D-CAD” free ware
(http://librecad.org/cms/home.html). From these measurements, we calculated a tail-to-trunk
index (IT index) for the relative proportion o f tail to body length. A statistically significant
relationship was found between T-T index and elevation (LMM 15.45, p < 0.0001). With
every 100 m o f elevation increase, the TT index decreased by 0.031 (SE + 0.007). This
morphological variation seems to be an adaptation to environmental conditions. This simple
method is a promising new application for the non-invasive morphometric analysis o f species
traits in the field. |
|
dc.language.iso |
en_US |
en_US, si_LK |
dc.publisher |
Proceedings of Asian Primate Symposium 2016 |
en_US, si_LK |
dc.subject |
toque macaque |
en_US, si_LK |
dc.subject |
non-invasive methods |
en_US, si_LK |
dc.subject |
morphometrics |
en_US, si_LK |
dc.subject |
elevation |
en_US, si_LK |
dc.subject |
relative tail length |
en_US, si_LK |
dc.subject |
relative body trunk length |
en_US, si_LK |
dc.title |
The Relationship between Tail Length and Elevation in Toque Macaques (Macaca sinica) in the Natural Habitat: usinga Quick Non-Invasive Method for Measuring Body to Tail Proportions |
en_US, si_LK |
dc.type |
Article |
en_US, si_LK |