Ream National Park Twelve Month Report

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Results Fauna A full list of all vertebrate species recorded by the survey can be found in Appendix 2. Amphibia Confirmed sightings of 12 species of amphibia were made, in six families. The majority of amphibia captured were small frogs. One amphibian find of great significance was several individuals (both adults and juveniles) of the Koh Tao caecilian (Ichthyophis kohtaoensis). Avia During the year the project recorded 125 species of bird. 66 of these are new records compared to the most recent previous survey (Goes et al. 1998). Taking into account both surveys, which together provide good coverage of Ream’s terrestrial and wetland habitats, 192 bird species have been recorded in the area. A species discovery curve for birds (Figure 2) shows a clear decrease in the rate of discovery of new species towards the end of the survey period, suggesting that the majority of bird species that Frontier-Cambodia has the expertise to identify have been recorded. Of the birds definitively identified, five are key conservation species recorded on the IUCN’s Red Data List. These are the lesser adjutant (Leptoptilos javanicus; Vulnerable), milky stork (Mycteria cinerea; Vulnerable), painted stork (Mycteria leucocephala; Lower risk – near threatened), spot-billed pelican (Pelecanus philippensis; Vulnerable) and great hornbill (Buceros bicornis; Lower risk – near threatened). A number of individuals of lesser adjutants have also been observed on the island of Koh Thmei. Additionally, five species observed are known to be threatened in neighbouring countries: the woolly-necked stork (Ciconia episcopus), white-bellied sea eagle (Haliaetus leucogaster) and brahminy kite (Haliastar indicus) in Thailand and Laos, blue-tailed bee-eater (Merops phillippinus) in Laos, and great slaty woodpecker (Muellerpicus pulverulentus) in Thailand. Nesting sites for brahminy kite have been identified in areas of the Park. Possible other sightings of conservation interest, which require verification, include four more Red Listed species: greater-spotted eagle (Aquila clanga; Vulnerable), Pallas’s fish eagle (Haliaetus leucoryphus; Vulnerable), grey-headed fish eagle (Ichthyophaga ichthyaetus; Lower risk – near threatened) and Wallace’s hawk eagle (Spizaetus nanus; Vulnerable). Frontier Cambodia Environmental Research Report 1 9
Total number of bird species seen to date 140 120 100 80 60 40 20 0 Lepidoptera Frontier Cambodia Environmental Research Report 1 1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121 127 133 139 145 151 157 163 169 175 181 187 193 199 205 211 217 223 Number of days' surveying Figure 2. Species discovery curve for birds in Ream National Park, January-December 2004. One hundred and thirty-one lepidopteran morphotypes were captured and photographed during the project. Some of these cannot be identified to species level (and will therefore be sent to experts for identification), but approximately 40 are moths and the remainder butterflies. The image database that has been built up should prove useful both for liaison with experts on questions of identification, and for publishing of a species guide of Ream National Park (and hopefully in the future a Cambodian lepidoptera guide). Mammalia Thirty mammalian species have been recorded in Ream from sightings or specimens. These include a number of IUCN Red Listed terrestrial species. The malayan pangolin (Manis javanica; Lower risk – near threatened), positively identified from prints, and the long tailed macaque (Macaca fascicularis; Lower risk – near threatened) have been observed throughout the Park. Evidence of the fishing cat (Prionailurus viverrinus; Vulnerable) was also discovered in an area of paddy-fields directly adjacent to the Park. A colony of silvered langurs (Trachypithecus germaini; Data deficient) has been observed in the mangroves lining the eastern side of the Prek Toek Sap. Marine mammals of conservation importance include a population of otters in the Prek Toek Sap River. The otters were either Eurasian (Lutra lutra) or smooth-coated (Lutrogale perspicillata ) otters, both classed as Vulnerable; however Frontier-Cambodia was not in a position to make a definite identification. Both irrawaddy dolphin (Orcaella brevirostris; Critically endangered) and eastern bottle-nosed dolphin (Tursiops aduncus; Data deficient) have been sighted at numerous locations in the Prek Toek Sap estuary and adjacent marine waters. The alien roof rat (Rattus rattus) has been found in many areas of the Park, including its offshore islands. The population status of this non-native species should be monitored as it could have a negative impact upon native small mammal and bird populations. 10
Page 1: Frontier Cambodia Environmental Res
Page 4 and 5: Suggested technical paper citation:
Page 6 and 7: Participants: Frontier Staff: Dr. A
Page 8 and 9: Introduction Ream National Park Rea
Page 10 and 11: The common dilemma that the DNCP ha
Page 12 and 13: Methodology Study sites Throughout
Page 14 and 15: voucher specimens (one of each sex)
Page 18 and 19: Reptilia Ream National Park is rich
Page 20 and 21: Frequency of turtle catches 25 20 1
Page 22 and 23: Figure 9. Comparison of brahminy ki
Page 24 and 25: Discussion Ream National Park conta
Page 26 and 27: Figure 10. A map showing significan
Page 28 and 29: References ADB. 1999. Cambodia Coas
Page 30 and 31: Appendices Appendix 1: Table summar
Page 32 and 33: What types of fish species do you c
Page 34 and 35: Appendix 3: Animal species seen or
Page 48 and 49: Appendix 4: Tree species identified
Page 54 and 55: Phase, Trapsite,Vegetati on Plot (0
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Ream National Park Twelve Month Report

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