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Tembadau - Courtesy of H. Matsubayashi |
Clouded Leopard - Courtesy of H. Matsubayashi |
Five monitoring components are currently being carried out in DFR. These are:
| i. | Riverside (four times a year); |
| ii. | Salt Lick (once a month); |
| iii. | Orangutan aerial nest count (twice a year); |
| iv. | Elephant (once a month); and |
| v. | Opportunistic Sightings (daily). |
Four natural salt licks in DFR were identified with the assistance of Dr. Hisashi Matsubayashi, a mammalogist from the University of Tokyo, Japan. Natural salt lick is one attribute to High Conservation Value Forest.
Water and soil samples have been collected for analysis and were found to contain high amounts of Ca, Mg, Na and K. Other ocular findings in relation to these salt licks are shown in Table 1.
| LOCATION OF SALT LICK | *Mammals Caught On Celluloid | Hoof Prints | Dungs |
|
Compartment 49, 58 and 46 KM 12, Secondary Road 3 |
Tembadau | Elephant | Elephant |
| Samba Deer | Tembadau | Samba Deer | |
| Greater Mouse Deer | Sus Barbatus | Tembadau | |
| Samba deer | Wild boar | ||
|
Compartment 70, KM 14
|
Clouded Leopard | Clouded Leopard | Elephant |
| Leopard Cat | Tembadau | Samba Deer | |
| Tembadau | Samba Deer | Tembadau | |
| Samba deer | Wild Boar | Wild Boar | |
| Wild boar | Elephant | ||
| Malay Badger | |||
| Muntjac – Barking Deer | |||
|
Compartment 66, KM 17.5 Main Road 2 |
Orang utan | Elephant | Elephant |
| Tembadau | Tembadau | Tembadau | |
| Sun Bear | Samba Deer | Samba Deer | |
| Wild Boar | Wild Boar | ||
| Samba Deer | |||
| Malay Civet | |||
| Greater Mouse Deer | |||
|
Compartment 90, KM 29 Main Road 2 |
None set up yet. | Tembadau | Tembadau |
| Elephant | Elephant | ||
| Samba Deer | Samba Deer | ||
| Wild Boar |
Table
1. Ocular findings of mammals in relation
to salt licks in DFR.
Orangutans (Pongo pygmaeus) are exceptionally shy animals, which contribute to the fact that their population and distribution cannot be readily assessed by direct sightings. The aerial census methodology by counting Orangutan nests along pre-determined transects, is being used in DFR. This exercise is carried out twice a year and the results are shown in Table 2.
|
Date of Census |
# of Individuals/km2 |
# of Orang-utan in DFR |
|
December-99 |
1.40 |
772 |
|
July-02 |
1.78 |
981 |
|
December-02 |
1.71 |
943 |
|
December-03 |
1.65 |
910 |
|
February-04 |
1.74 |
959 |
|
June-05 |
1.64 |
904 |
|
November-05 |
1.10 |
607 |
|
June-06 |
1.23 |
678 |
|
November-06 |
1.18 |
651 |
|
August-07 |
1.50 |
827 |
|
November-07 |
1.92 |
1,059 |
It is estimated that a minimum of 900 Orangutans are currently residing in DFR. The recent survey indicates that there are more nest building activities in the central and eastern part as compared to the west of DFR. The focus of the various forest management activities (harvesting, rehabilitation and silviculture tending) that are now currently concentrated in the west, could be the reason for this.
Observations are based on daily opportunistic encounters and calls. Refer to Table 3. Opportunistic sightings (1997 – 2003).

Pygmy Elephant
Courtesy of Shan Kee, WWF,
4.0 Mitigating the impacts of Forest Management Activities on Wildlife
As planned in the FMP, approximately three quarters of DFR remains undisturbed or closed to forest management activities at any given time. This means all forest management activities (silviculture, enrichment planting and harvesting) is focused on a small portion (10,000 ha) of DFR staggered over a period of ten years, which translates to a management cycle of about 40 years. This is planned primarily to encourage plant succession without disturbance, and at the same time they act as a sanctuary for wildlife that thrives in DFR.
Wildlife and their habitat contiguity is ensured simply because DFR is a well managed forest and hopefully, it will stay that way in perpetuity. Regardless of this, mitigating measures are put in place to minimize the impact of human presence and interference to the eco-system.
|
SPECIES AND FREQUENCY OF SIGHTINGS/ENCOUNTERS (2007) |
|
|
LOCALLY THREATENED |
|
|
Orangutan (Pongo pygmaeus) |
67 |
|
Pygmy Elephant |
253 |
|
Tembadau / Banteng (Bos javanicus) |
5 |
|
Clouded Leopard (Neofelis diardii) |
3 |
|
Proboscis Monkey (Nasalis larvatus) |
25 |
|
Borneon Gibbon (Hylobates muelleri) |
52 |
|
Sun Bear (Helartos malayanus) |
15 |
|
Red Leaf Monkey (Presbytis rubicunda) |
6 |
|
Helmeted Hornbill (Rhinplax vigil) |
55 |
|
Storm Stork |
2 |
|
COMMON |
|
|
Sambar deer (Cervus unicolor) |
278 |
|
Bornean yellow muntjac (Muntiacus atherodes) |
31 |
|
Bearded pig (Sus barbatus) |
293 |
|
Lesser mouse-deer (Traulus javanicus) |
63 |
|
Greater mouse-deer (Tragulus napu) |
60 |
|
Flat-headed cat (Felis planiceps) |
9 |
|
Leopard cat (Felis bengalensis) |
31 |
|
Marbled cat (Felis marmorata) |
2 |
|
Bay cat (Felis badia) |
1 |
|
Malay civet (Viverra tangalunga ) |
203 |
|
Common palm civet (Paradoxurus hermaphroditus) |
76 |
|
Malay badger (Mydaus javanensis) |
55 |
|
Oriental small-clawed otter (Aonyx (Amblonyx) cinerea) |
17 |
|
Long-tailed macaque (Macaca fascicularis) |
88 |
|
Pig-tailed macaque (Macaca nemestrina) |
79 |
|
Moonrat (Echinosorex gymnurus) |
13 |
|
Thick-spined porcupine (Thecurus crassispinis) |
23 |
|
Pangolin (Manis javanica) |
18 |
|
Rhinoceros Hornbill (Buceros rhinoceros) |
56 |
|
Pied Hornbill (Anthrococeros coronatus) |
46 |
|
Crocodile (Crocodylus porosus) |
77 |
|
Argus Pheasant |
46 |
|
Reticulated Python |
18 |
|
Masked Palm Civet |
3 |
|
Flying Lemur (Cynocephalus variegates) |
4 |
|
Crested Serpent-Eagle (Spirlonis cheela) |
56 |
|
Black Eagle (Ictinaetus malayensis) |
34 |
|
Bay Owl (Phodilus badius) |
3 |
|
Buffy Fish-owl (Ketupa ketupu) |
16 |
|
Oriental darter |
46 |
|
Hill Myrna (Gracula religiosa) |
15 |
|
Flying fox (Pteropus vampyrus) |
37 |
|
Crested Fireback |
28 |
|
Black cobra |
4 |
|
Monitor lizard |
56 |
|
Binturong or Bear cat (Arctictis binturong) |
3 |
Table 3. Opportunistic sightings (2007).