Primate census and comparative socio- ecology of toque macaque sub
species in the wet and dry zones of Sri Lanka.
Nahallage, Charmalie AD
6th January,2007 - 20th March,2007
From 7 January to 4 February, I worked at the University of Sri
Jayawardenepura analyzing questionnaires returned so far by undergraduate
students in my department. Also I went to the library and collected
literature on primates from historical Buddhist literature. I also
conducted a preliminary survey of the distribution of the purple-faced
langur in Colombo district by direct observation and by asking fellow
colleagues in the university whom live across the district.Between 5 and19
Feb., I started the extensive field survey with Prof. Michael Huffman and
two local counterparts, Ms. K.M.P. Nadeera (officer, Department of
Wildlife) and Ms. W. Tharindi (graduate in Anthropology, Univ. Sri.
Jayawardenepura). We visited 12 sites in the western, southern and central
provinces of Sri Lanka known to contain many primate populations. We left
Colombo on 5 February for Bundala National Park in the south. There
between 5 and 7 Feb., we observed toque macaques and gray langurs. Between
7 and 9 Feb. we visited four temple complexes: Vadasitikanda,
Sellakataragama, Kataragama and Situlpawwa. Here we collected fecal
samples from troops of toque macaque and hanuman langur when encountered.
From 9 to 12 Feb. we stayed in Yala NP and conducted surveys and collected
fecal samples from toque macaques and hanuman langurs. We next moved north
to Udawalawa NP and stayed there between 12 and 14 Feb. were we again
observed toque macaques and hanuman langurs. From 14 Feb. we moved further
north to the highlands of Horton Plains NP, the highest national park in
Sri Lanka. Between 14 to 17 Feb. we conducted surveys on the high-altitude
sub-species of purple faced langur (bear monkeys). On 18 Feb. we visited
the Kandy City suberbs, Udawatta Kele Nature Sancturay and the Peradeniya
Botanical Gardens to collect toque macaque fecal samples and conduct
questionnaires on local residents. On 19 Feb. we visited Dambulla in the
north central part of the island site to collect toque macaque fecal
samples. This temple complex is a World Heritage site.Prof. Huffman
returned to Japan on 25 Feb. From 20 Feb. to 17 March I visited University
of Sri Jayawardenepura to conduct preliminary studies on two troops of the
lowland sub-species of purple faced langurs ranging on the campus grounds
and nearby neighborhood. I followed them and collected fecal samples and
took photos when ever possible. I left Colombo for Nagoya on 18 March
arriving back in Nagoya via Singapore on 20 March.
1. Charmalie Nahallage (R), Tareendi (M), Nadeera (L)
observing a mother - infant pair of toque macaques
in Yala National Park, southern Sri Lanka.
2. Purple faced langurs in forest outside of Pattipola, Sri Lanka at the foot of Horton Plains NP.
3. Toque macaque (center) resting among a troop of hanuman langurs in the shade
in Bundala National Park, Sri Lanka.