1. Tan SK & Chan S-Y (2009) New records of predatory slugs from Singapore with notes on their feeding behaviour. Nature in Singapore, 2: 1–7. [PDF, 1.03 MB]
  2. Lim KKP & D’Rozario V (2009) The rainbow mud snake, Enhydris enhydris (Schneider) (Reptilia: Squamata: Homalopsidae) in Singapore. Nature in Singapore, 2: 9–12. [PDF, 545 KB]
  3. Leong TM & D’Rozario V (2009) Larval development and metamorphosis of the hawkmoth, Theretra suffusa (Walker) (Lepidoptera: Sphingidae: Macroglossinae). Nature in Singapore, 2: 13–20. [PDF, 1.30 MB]
  4. Leong TM & Teo SC (2009) Endotrophic tadpoles of the Saint Andrew’s Cross toadlet, Pelophryne signata (Amphibia: Anura: Bufonidae) in Singapore. Nature in Singapore, 2: 21–25. [PDF, 622 KB]
  5. Wee YC & Subaraj R (2009) Citizen science and the gathering of ornithological data in Singapore. Nature in Singapore, 2:27–30. [PDF, 37.8 KB]
  6. Lok AFSL, Lee TK & Lim KC (2009) The biology of Otus lempiji cnephaues Deignan, the Sunda scops-owl in Singapore. Nature in Singapore, 2: 31–38. [PDF, 980 KB]
  7. Lok AFSL, Tey BS & Subaraj R (2009) Barbets of Singapore Part 1: Megalaima lineata hodgsoni Bonaparte, the lineated barbet, Singapore’s only exotic species. Nature in Singapore, 2: 39–45. [PDF, 909 KB]
  8. Lok AFSL & Lee TK (2009) Barbets of Singapore Part 2: Megalaima haemacephala indica Latham (coppersmith barbet), Singapore’s only native, urban barbet. Nature in Singapore, 2: 47–54. [PDF, 897 KB] [Corrigendum]
  9. Leong TM (2009) Oviposition and hatching in the praying mantis, Hierodula patellifera (Serville) in Singapore (Mantodea: Mantidae: Paramantinae). Nature in Singapore, 2: 55–61. [PDF, 655 KB]
  10. Chan S-Y (2009) The Melongenidae (Mollusca: Gastropoda) of Singapore. Nature in Singapore, 2: 63–67. [PDF, 178 KB]
  11. Lok AFSL, Yao CJ & Tey BS (2009) Barbets of Singapore Part 3: forest species, with emphasis on Megalaima rafflesii lesson, the red-crowned barbet. Nature in Singapore, 2: 69–76. [PDF, 1.02 MB]
  12. Low JKY, Jani Isa Thuaibah Tanzil & Zeehan Jaafar (2009) Some note-worthy fishes observed in the Singapore Straits.Nature in Singapore, 2: 77–82. [PDF, 554 KB]
  13. Leong TM & Lim KKP (2009) Noteworthy microchiropteran records from the Bukit Timah and Central Catchment Nature Reserves, Singapore. Nature in Singapore, 2: 83–90. [PDF, 576 KB]
  14. Leong TM, D’Rozario V & Chan SH (2009) Observations on the mature caterpillar and pupa of the hummingbird hawkmoth,Macroglossum sitiene Walker (Lepidoptera: Sphingidae: Macroglossinae). Nature in Singapore, 2: 91–96. [PDF, 840 KB]
  15. Wang LK, Chan M, Chan YM, Tan GC & Wee YC (2009) Pellet-casting by non-raptorial birds of Singapore. Nature in Singapore, 2: 97–106. [PDF, 1.17 MB]
  16. Subaraj R & Lok AFSL (2009) Status of the lesser adjutant stork (Leptoptilos javanicus) in Singapore. Nature in Singapore, 2: 107–113. [PDF, 731 KB]
  17. Leong TM & Tay SL (2009) Encounters with Tetracanthagyna plagiata (Waterhouse) in Singapore, with an observation of oviposition (Odonata: Anisoptera: Aeshnidae). Nature in Singapore, 2: 115–119. [PDF, 466 KB]
  18. Tham FY & Chan TY (2009) A record of gregarious fruiting of blue Entoloma fungi at Bukit Timah Nature Reserve. Nature in Singapore, 2: 121–124. [PDF, 562 KB]
  19. Lok AFSL & Subaraj R (2009) Lapwings (Charadriidae: Vanellinae) of Singapore. Nature in Singapore, 2: 125–134. [PDF, 1.29 MB]
  20. Lok AFSL & Orr AG (2009) The biology of Euphaea impar Selys (Odonata: Euphaeidae) in Singapore. Nature in Singapore, 2: 135–140. [PDF, 1.15 MB]
  21. Leong TM (2009) Late instar caterpillar and metamorphosis of the hawkmoth Eupanacra automedon (Walker) (Lepidoptera: Sphingidae: Macroglossinae). Nature in Singapore, 2: 141–148. [PDF, 1.84 MB]
  22. Tan PY & Sia A (2009) Understanding the performance of plants on non-irrigated green roofs in Singapore using a biomass yield approach. Nature in Singapore, 2: 149–153. [PDF, 121 KB]
  23. Lok AFSL, Khor KTN, Lim KC & Subaraj R (2009) Pittas (Pittidae) of Singapore. Nature in Singapore, 2: 155–165 . [PDF, 1.04 MB]
  24. Tan HH (2009) Observations on the black pomfret, Parastromateus niger (Teleostei: Perciformes: Carangidae). Nature in Singapore, 2: 167–169. [PDF, 265 KB]
  25. Leong TM (2009) Final instar larva and metamorphosis of Hypopyra pudens Walker in Singapore (Lepidoptera: Noctuidae: Catocalinae). Nature in Singapore, 2: 171–176. [PDF, 817 KB]
  26. Leong TM (2009) Final instar caterpillar and metamorphosis of Eudocima smaragdipicta (Walker) (Lepidoptera: Noctuidae: Calpinae). Nature in Singapore, 2: 177–182. [PDF, 620 KB]
  27. Tsang KC, Subaraj R & Wee YC (2009) The role of the camera in birdwatching in Singapore. Nature in Singapore, 2: 183–191. [PDF, 843 KB]
  28. Wee YC & Wang LK (2009) Observations on the in-captivity development of a rescued chick of the striated heron, Butorides striatus (Linnaeus). Nature in Singapore, 2: 193–202. [PDF, 1.56 MB]
  29. Leong TM (2009) Late instar larva and metamorphosis of Ophiusa trapezium (Guenée) in Singapore (Lepidoptera: Noctuidae: Catocalinae). Nature in Singapore, 2: 203–207. [PDF, 913 KB]
  30. Ngiam RWJ (2009) The biology and distribution of Pseudagrion rubriceps rubriceps Selys, 1876 (Odonata: Zygoptera: Coenagrionidae) in Singapore. Nature in Singapore, 2: 209–214. [PDF, 1.02 MB]
  31. Leong TM, Teo SC & Lim KKP (2009) The naked bulldog bat, Cheiromeles torquatus in Singapore—Past and present records, with highlights on its unique morphology (Microchiroptera: Molossidae). Nature in Singapore, 2: 215–230. [PDF, 1.91 MB]
  32. Lok AFSL & Tan HTW (2009) Tuberous, epiphytic, rubiaceous myrmecophytes of Singapore. Nature in Singapore, 2:231–236. [PDF, 843 KB]
  33. Lok AFSL, Ang WF, Lee SML, Tan HH & Tan HTW (2009) The status and distribution of Barclaya (Nymphaeaceae) in Singapore. Nature in Singapore, 2: 237–245. [PDF, 1.96 MB]
  34. Leong TM & Foo SK (2009) An encounter with the net-casting spider, Deinopis species in Singapore (Araneae: Deinopidae). Nature in Singapore, 2: 247–255. [PDF, 691 KB]
  35. Leong TM (2009) Final instar larvae and metamorphosis of the hawkmoth, Psilogramma increta (Walker) in Singapore (Lepidoptera: Sphingidae: Sphinginae). Nature in Singapore, 2: 257–266. [PDF, 2.17 MB]
  36. Leong TM & Aminurashid (2009) Final instar caterpillar and metamorphosis of Amblychia hymenaria (Guenée) in Singapore (Lepidoptera: Geometridae: Ennominae). Nature in Singapore, 2: 267–273. [PDF, 1.20 MB]
  37. Banwell HM & Lim JCW (2009) Observations on a successful nesting of a pair of Oriental pied hornbills (Anthracoceros albirostris, Shaw & Nodd, 1790) at Changi Village, Singapore. Nature in Singapore, 2: 275–281. [PDF, 881 KB]
  38. Wong HW (2009) The Mactridae (Mollusca: Bivalvia) of East Coast Park, Singapore. Nature in Singapore, 2: 283–296. [PDF, 1.10 MB]
  39. Leong TM & D’Rozario V (2009) Final instar larvae and metamorphosis of the oleander hawkmoth, Daphnis nerii (Linnaeus) in Singapore (Lepidoptera: Sphingidae: Macroglossinae). Nature in Singapore, 2: 297–306. [PDF, 1.66 MB]
  40. Lim JCW (2009) First two days in the life of a little tern, Sterna albifrons (Aves: Sternidae). Nature in Singapore, 2: 307–310 [PDF, 343 KB]
  41. Leong TM & Foo SK (2009) Attempted predation on a large gecko by a twin-barred tree snake, Chrysopelea pelias (Reptilia: Squamata: Colubridae). Nature in Singapore, 2: 311–316. [PDF, 901 KB]
  42. Ali bin Ibrahim & Leong TM (2009) Records of the black and scarlet cicada, Huechys sanguinea (De Geer) in Singapore, with notes on its emergence (Homoptera: Cicadidae: Cicadettinae). Nature in Singapore, 2: 317–322. [PDF, 820 KB]
  43. Chan KW, Lim KKP & Leong TM (2009) The Javan pipistrelle, Pipistrellus javanicus (Mammalia: Chiroptera: Vespertilionidae) in Singapore. Nature in Singapore, 2: 323–327. [PDF, 380 KB]
  44. Leong TM & D’Rozario V (2009) Larval development and metamorphosis of the hawkmoth, Pergesa acteus (Cramer) in Singapore (Lepidoptera: Sphingidae: Macroglossinae). Nature in Singapore, 2: 329–338. [PDF, 1.36 MB]
  45. Lok AFSL, Ang WF & Tan HTW (2009) The status and distribution in Singapore of Dipteris conjugata Reinw. (Dipteridaceae). Nature in Singapore, 2: 339–345. [PDF, 2.55 MB]
  46. Wee YC (2009) Observations on the behaviour of the yellow-vented bulbul, Pycnonotus goiavier (Scopoli) in two instances of failed nesting. Nature in Singapore, 2: 347–352. [PDF, 1.45 MB]
  47. Leong TM, Chew MSM & Foo SK (2009) An encounter with a mating pair of Hypopyra pudens Walker in Singapore (Lepidoptera: Noctuidae: Catocalinae). Nature in Singapore, 2: 353–356. [PDF, 489 KB]
  48. Tan SK, Tan SH & Low MEY (2009) On Ellobium aurismalchi (Müller, 1774) (Mollusca: Ellobiidae). Nature in Singapore,2: 357–359. [PDF, 111 KB]
  49. Leong TM, C. Yeong & Subaraj R (2009) Attempted predation on a tadpole by a painted bronzeback, Dendrelaphis pictus(Reptilia: Squamata: Colubridae). Nature in Singapore, 2: 361–364. [PDF, 444 KB]
  50. Yong DL (2009) Persistence of babbler (Timaliidae) communities in Singapore forests. Nature in Singapore, 2: 365–371. [PDF, 222 KB]
  51. Chua M, Sivasothi N & Teo R (2009) Rediscovery of greater mouse deer, Tragulus napu (Mammalia: Artiodactyla: Tragulidae) in Pulau Ubin, Singapore. Nature in Singapore, 2: 373–378. [PDF, 380 KB]
  52. Chim CK, Neo ML & Loh KS (2009) The status in Singapore of Strombus (Dolomena) marginatus sowerbyorum Visser & Man In’t Veld, 2005 (Mollusca: Gastropoda: Strombidae). Nature in Singapore, 2: 379–384. [PDF, 633 KB]
  53. Leong TM (2009) Final instar larvae and metamorphosis of Eterusia risa risa and Prosopandrophila distincta distincta in Singapore (Lepidoptera: Zygaenidae: Chalcosiinae). Nature in Singapore, 2: 385–392. [PDF, 1.11 MB] [Corrigendum]
  54. Lok AFSL, Ang WF, Ng PX, Yee ATK & Tan HTW (2009) The distribution and status in Singapore of Bulbophyllum sessile (Koen.) J. J. Sm. (Orchidaceae). Nature in Singapore, 2: 393–395. [PDF, 618 KB]
  55. Leong TM (2009) Report of the moth, “Hadenniakimae Holloway, 2008 in Singapore, a first record outside of Borneo (Lepidoptera: Noctuidae: Herminiinae). Nature in Singapore, 2: 397–398. [PDF, 152 KB]
  56. Leong TM (2009) Final instar caterpillar and metamorphosis of Eudocima discrepans (Walker) in Singapore (Lepidoptera: Noctuidae: Calpinae). Nature in Singapore, 2: 399–406. [PDF, 1.16 MB]
  57. Leong TM, Groenewoud D & Foo SK (2009) Final instar caterpillar and metamorphosis of the moth, Dysphania malayanus (Guérin-Méneville) in Singapore (Lepidoptera: Geometridae: Geometrinae). Nature in Singapore, 2: 407–410. [PDF, 536 KB]
  58. Teo S & Ng LCS (2009) New record of a sea cucumber, Holothuria ocellata (Jaeger, 1833) (Holothuroidea: Aspidochirotida: Holothuriidae) in Singapore. Nature in Singapore, 2: 411–414. [PDF, 689 KB]
  59. Lok AFSL, Ang WF & Tan HTW (2009) The status of Gastrodia javanica (Bl.) Lindl. in Singapore. Nature in Singapore, 2: 415–419. [PDF, 413 KB]
  60. Tan CKW (2009) Effects of trenching on shell size and density of Turbo brunneus (Gastropoda: Turbinidae) and Monodonta labio (Gastropoda: Trochidae) at Labrador Beach, Singapore. Nature in Singapore, 2: 421–429. [PDF, 228 KB]
  61. Leong TM (2009) Final instar larva and metamorphosis of Biston pustulata in Singapore (Lepidoptera: Geometridae: Ennominae). Nature in Singapore, 2: 431–436. [PDF, 1.10 MB]
  62. Leong TM (2009) Final instar larva and metamorphosis of the moth Eupterote naessigi Holloway, 1987 in Singapore (Lepidoptera: Eupterotidae: Eupterotinae). Nature in Singapore, 2: 437–442. [PDF, 1.16 MB]
  63. Leong TM & D’Rozario V (2009) Final instar caterpillar and metamorphosis of Calliteara horsfieldii (Saunders) in Singapore (Lepidoptera: Lymantriidae: Orgyiini). Nature in Singapore, 2: 443–447. [PDF, 901 KB]
  64. Ngiam RWJ (2009) The record of Archibasis rebeccae Kemp, 1989 in Singapore (Odonata: Zygoptera: Coenagrionidae).Nature in Singapore, 2: 449–452. [PDF, 457 KB]
  65. Leong TM (2009) Final instar caterpillar and metamorphosis of Pericyma cruegeri (Butler, 1886) in Singapore (Lepidoptera: Noctuidae: Catocalinae). Nature in Singapore, 2: 453–457. [PDF, 820 KB]
  66. Ganesan SK (2009) Lophopetalum pallidum Laws. (Celastraceae), an addition to the flora of Singapore. Nature in Singapore, 2: 459–461. [PDF, 369 KB]
  67. Lim FLK (2009) Asthenodipsas laevis (Reptilia: Squamata: Pareatidae), a snake record for Singapore that was almost forgotten. Nature in Singapore, 2: 463–465. [PDF, 148 KB]
  68. Low CHS, Chan KW & Lim KKP (2009) The identity of a mousedeer (Mammalia: Artiodactyla: Tragulidae) observed at Lower Peirce forest, Singapore. Nature in Singapore, 2: 467–473. [PDF, 1.02 MB]
  69. Lok AFSL (2009) The black-naped monarch (Hypothymis azurea) in Singapore. Nature in Singapore, 2: 475–479. [PDF, 848 KB]
  70. Lok AFSL, Ng PX, Ang WF & Tan HTW (2009) The status and distribution in Singapore of Acriopsis liliifolia (Koenig) Ormerod (Orchidaceae). Nature in Singapore, 2: 481–485. [PDF, 532 KB]
  71. Leong TM, Lim KKP & Baker N (2009) Rediscovery of the white-spotted cat snake, Boiga drapiezii in Singapore (Reptilia: Serpentes: Colubridae). Nature in Singapore, 2: 487–493. [PDF, 735 KB]
  72. Leong TM, Murphy DH & Leong L (2009) Records of the lantern bug, Laternaria oculata (Westwood, 1839), (Homoptera: Fulgoridae: Fulgorinae) in Singapore, with notes on Zanna nobilis (Westwood, 1839). Nature in Singapore, 2: 495–501. [PDF, 1.20 MB]
  73. Leong TM & Lim KKP (2009) Final instar caterpillar and metamorphosis of the hawkmoth, Theretra nessus (Drury) in Singapore (Lepidoptera: Sphingidae: Macroglossinae). Nature in Singapore, 2: 503–510. [PDF, 1.67 MB]