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Spatial ecology of a small arboreal ambush predator, Trimeresurus macrops Kramer, 1977, in Northeast Thailand

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The Big-Eyed Green Pit Viper (Trimeresurus macrops; Kramer, 1977) is a venomous snake species endemic to Southeast Asia. Although we have some knowledge of the systematics and toxicology of T. macrops, little is known about the spatial ecology of this species. From May 2013 to February 2014, we used radio-telemetry to determine home-range sizes of 13 adult female T. macrops inhabiting the Sakaerat Biosphere Reserve in Northeast Thailand. We found that individual home ranges for T. macrops averaged 0.175 ha, with activity areas ranging from 0.112-0.303 ha and core areas ranging from 0.023-0.052 ha. There was little overlap between conspecific tracked females, especially for the most used areas of their home ranges. We find that T. macrops ambushes more in higher humidity and expresses very little diurnal activity. They use the groundstory for ambushing, then retreat over small distances to higher refuge during the day. Future studies should focus on prey abundance, habitat selection, and survival rates.

Affiliations: 1: 1School of Biology, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand ; 2: 2Conservation Ecology Program, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand ; 3: 3Sakaerat Environmental Research Station, Nakhon Ratchasima, Thailand ; 4: 4Department of Biological Science, University of Arkansas, Fayetteville, AR, USA

*Corresponding author; e-mail:

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1. Bauder J.M., Breininger D.R., Bolt M.R., Legare M.L., Jenkins C.L., Rothermel B.B., McGarigal K. (2016): "Seasonal variation in Eastern Indigo snake (Drymarchon couperi) movement patterns and space use in Peninsular Florida at multiple temporal scales". Herpetologica Vol 72: 214-226. [Crossref]
2. Berger-Tal O., Polak T., Oron A., Lubin Y., Kotler B.P., Saltz D. (2011): "Integrating animal behavior and conservation biology: a conceptual framework". Behav. Ecol. Vol 22: 236-239. [Crossref]
3. Bonnet X., Naulleau G., Shine R. (1999): "The dangers of leaving home: dispersal and mortality in snakes". Biol. Conserv. Vol 89: 39-50. [Crossref]
4. Brown G.P., Shine R., Madsen T. (2002): "Responses of three sympatric snake species to tropical seasonality in northern Australia". J. Trop. Ecol. Vol 18: 549-568. [Crossref]
5. Carfagno G.L., Weatherhead P.J. (2008): "Energetics and space use: intraspecific and interspecific comparisons of movements and home ranges of two Colubrid snakes". J. Anim. Ecol. Vol 77: 416-424. [Crossref]
6. Chanhome L., Cox M.J., Vasaruchapong T., Chaiyabutr N., Sitprija V. (2011): "Characterization of venomous snakes of Thailand". Asian Biomed. Vol 5: 311-328.
7. Creer S., Chou W.H., Malhotra A., Thorpe R.S. (2002): "Offshore insular variation in the diet of the Taiwanese bamboo viper Trimeresurus stejnegeri (Schmidt)". Zool. Sci. Vol 19: 907-913. [Crossref]
8. Daltry J.C., Ross T., Thorpe R.S., Wüster W. (1998): "Evidence that humidity influences snake activity patterns: a field study of the Malayan pit viper Calloselasma rhodostoma". Ecography Vol 21: 25-34. [Crossref]
9. ESRI (2011): ArcGIS Desktop: Release 10. Environmental Systems Research Institute, Redlands, CA.
10. Fieberg J., Kochanny C.O. (2005): "Quantifying home-range overlap: the importance of the utilization distribution". J. Wildl. Manage. Vol 69: 1346-1359. [Crossref]
11. Fryxell J.M., Sinclair A.R., Caughley G. (2014): Wildlife Ecology, Conservation, and Management. John Wiley & Sons, New York.
12. Guillera-Arroita G. (2017): "Modelling of species distributions, range dynamics and communities under imperfect detection: advances, challenges and opportunities". Ecography Vol 40: 281-295. [Crossref]
13. Hoss S.K., Guyer C., Smith L.L., Schuett G.W. (2010): "Multiscale influences of landscape composition and configuration on the spatial ecology of eastern diamond-backed rattlesnakes (Crotalus adamanteus)". J. Herpetol. Vol 44: 110-123. [Crossref]
14. Hutton R.A., Looareesuwan S., Ho M., Silamut K., Chanthavanich P., Karbwang J., Supanaranond W., Vejcho S., Viravan C., Phillips R.E., Warrell D.A. (1990): "Arboreal green pit vipers (genus Trimeresurus) of South-East Asia: bites by T. albolabris and T. macrops in Thailand and a review of the literature". Trans. R. Soc. Trop. Med. Hyg. Vol 84: 866-874. [Crossref]
15. Hyslop N.L., Meyers J.M., Cooper R.J., Norton T.M. (2009): "Survival of radio-implanted Drymarchon couperi (eastern indigo snake) in relation to body size and sex". Herpetologica Vol 65: 199-206. [Crossref]
16. Hyslop N.L., Meyers J.M., Cooper R.J., Stevenson D.J. (2014): "Effects of body size and sex of Drymarchon couperi (eastern indigo snake) on habitat use, movements, and home range size in Georgia". J. Wildl. Manage. Vol 78: 101-111. [Crossref]
17. Kernohan B.J., Gitzen R.A., Millspaugh J.J. (2001): "Analysis of animal space use and movements". In: Radiotracking and Animal Populations, p.  126-166. Millspaugh J.J., Marzluff J.M., Eds, Academic Press, San Diego.
18. Labocha M.K., Schutz H., Hayes J.P. (2014): "Which body condition index is best?" Oikos Vol 123: 111-119. [Crossref]
19. Luiselli L. (2006): "Resource partitioning and interspecific competition in snakes: the search for general geographical and guild patterns". Oikos Vol 114: 193-211. [Crossref]
20. Macartney J.M. (1985): The ecology of the northern Pacific rattlesnake, Crotalus viridis oreganus, in British Columbia. M.Sc. Thesis, Department of Biology, University of Victoria, British Columbia, Canada. Available at
21. Malhotra A., Thorpe R.S., Mrinalini, Stuart B.L. (2011): "Two new species of pitviper of the genus Cryptelytrops Cope 1860 (Squamata: Viperidae: Crotalinae) from Southeast Asia". Zootaxa Vol 2757: 1-23.
22. Maritz B., Alexander G.J. (2012): "Dwarfs on the move: spatial ecology of the world’s smallest viper, Bitis schneideri". Copeia Vol 1: 115-120. [Crossref]
23. Maritz B., Penner J., Martins M., Crnobrnja-Isailović J., Spear S., Alencar L.R.V., Sigala-Rodriguez J., Messenger K., Clark R.W., Soorae P., Luiselli L., Jenkins C., Greene H.W. (2016): "Identifying global priorities for the conservation of vipers". Biol. Conserv. Vol 204: 94-102. [Crossref]
24. Mazerolle M.J. (2011): AICcmodavg: model selection and multimodel inference based on (Q)AIC(c). R package version 2.00.
25. Nakagawa S., Schielzeth H. (2013): "A general and simple method for obtaining R2 from generalized linear mixed-effects models". Methods in Ecol. Evol. Vol 4: 133-142. [Crossref]
26. Nilsen E.B., Pedersen S., Linnell J.D. (2008): "Can minimum convex polygon home ranges be used to draw biologically meaningful conclusions?" Ecol. Res. Vol 23: 635-639. [Crossref]
27. Peig J., Green A.J. (2009): "New Sistrurus catenatus catenatus perspectives for estimating body condition from mass/length data: the scaled mass index as an alternative method". Oikos Vol 118: 1883-1891. [Crossref]
28. R Development Core Team (2013): R: A Language and Environment for Statistical Computing. R Foundation for Statistical Computing, Vienna, Austria. Available at
29. Reed R.N., Douglas M.E. (2002): "Ecology of the Grand Canyon rattlesnake (Crotalus viridis abyssus) in the Little Colorado River Canyon, Arizona". Southwest Naturalist Vol 47: 30-39. [Crossref]
30. Reinert H.K., Zappalorti R.T. (1988): "Timber rattlesnakes (Crotalus horridus) of the Pine Barrens: their movement patterns and habitat preference". Copeia Vol 4: 964-978. [Crossref]
31. Roth E.D. (2005): "Spatial ecology of a cottonmouth (Agkistrodon piscivorus) population in east Texas". J. Herpetol. Vol 39: 308-312. [Crossref]
32. Row J.R., Blouin-Demers G. (2006): "Kernels are not accurate estimators of home-range size for herpetofauna". Copeia Vol 4: 797-802. [Crossref]
33. Sasa M., Wasko D.K., Lamar W.W. (2009): "Natural history of the terciopelo Bothrops asper (Serpentes: Viperidae) in Costa Rica". Toxicon Vol 54: 904-922. [Crossref]
34. Schaefer W.H. (1934): "Diagnosis of sex in snakes". Copeia Vol 4: 181. [Crossref]
35. Setser K. (2007): "Use of anesthesia increases precision of snake measurements". Herpetol. Rev. Vol 38: 409-411.
36. Shine R. (1987): "Intraspecific variation in thermoregulation, movements and habitat use by Australian Blacksnakes, Pseudechis porphyriachus (Elapidae)". J. Herpetol. Vol 21: 165-177. [Crossref]
37. Shine R., Sun L., Fitzgerald M., Kearney M. (2003): "A radiotelemetric study of movements and thermal biology of insular Chinese pit-vipers (Gloydius shedaoensis, Viperidae)". Oikos Vol 100: 342-352. [Crossref]
38. Steen D.A. (2010): "Snakes in the grass: secretive natural histories defy both conventional and progressive statistics". Herpetol. Conserv. Biol. Vol 5: 183-188.
39. Strine C., Barnes C., Crane M., Silva I., Suwanwaree P., Nadolski B., Hill J. (2015): "Sexual dimorphism of tropical green pit viper Trimeresurus (Cryptelytrops) macrops in Northeast Thailand". Amphibia-Reptilia Vol 36: 327-338. [Crossref]
40. Stuart B., Chan-Ard T., Thy N. (2012): Cryptelytrops macrops. The IUCN Red List of Threatened Species. Version 2014.3. Available at Accessed on 09 January 2015.
41. Tiebout H.M. III, Cary J.R. (1987): "Dynamic spatial ecology of the water snake, Nerodia sipedon". Copeia Vol 1: 1-18. [Crossref]
42. Tsai T.S., Tu M.C. (2005): "Postprandial thermophily of Chinese green tree vipers, Trimeresurus s. stejnegeri: interfering factors on snake temperature selection in a thigmothermal gradient". J. Therm. Biol. Vol 30: 423-430. [Crossref]
43. Wasko D.K., Sasa M. (2009): "Activity patterns of a Neotropical ambush predator: spatial ecology of the Fer-de-lance (Bothrops asper, Serpentes: Viperidae) in Costa Rica". Biotropica Vol 41: 241-249. [Crossref]
44. Wasko D.K., Sasa M. (2012): "Food resources influence spatial ecology, habitat selection, and foraging behavior in an ambush-hunting snake (Viperidae: Bothrops asper): an experimental study". Zoology Vol 115: 179-187. [Crossref]
45. Whitaker P.B., Shine R. (2003): "A radiotelemetric study of movements and shelter-site selection by free-ranging brownsnakes (Pseudonaja textilis, Elapidae)". Herpetol. Monogr. Vol 17: 130-144. [Crossref]
46. Worton B.J. (1989): "Kernel methods for estimating the utilization distribution in home-range studies". Ecology Vol 70: 164-168. [Crossref]

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