Myanmar Timber Elephant Project


Crawley J.A.H., Nandar H., Zaw H.T., Lahdenperä M., dos Santos D.J.F., Seltmann M.W., Brown J.L., Goodsell R.M., Oo Z.M., Htut W., Nyein U.K., Aung H.H., Lummaa V. (2024) Asian elephant calf physiology and mahout perspectives during taming in Myanmar. Royal Society Open Science 11(4).   DOWNLOAD PDF.   DOI: 10.1098/rsos.231172

Ukonaho S., Berger, V., Franco dos Santos D., Htut W., Aung, H.H., Nyein U.K., Reichert S., Lummaa V. (2023) Seasonal variation in molecular and physiological stress markers in Asian elephants. Conservation Physiology 11(1) coad029.   DOWNLOAD PDF.   DOI: 10.1093/conphys/coad029

Liehrmann O., Ollila, A., Lummaa, V., Lansade L., Seltmann, M. (2023) First report of reindeer (Rangifer tarandus tarandus) response to human-given cues. Journal of Comparative Psychology. Advance online publication.   DOWNLOAD PDF.   DOI: 10.1037/com0000353

Liehrmann O., Cosnard C., Riihonen, V., Viitanen, A., Alander, E., Jardat, P., Koski, S.E., Lummaa, V., Lansade L. (2023) What drives horse success at following human-given cues? An investigation of handler familiarity and living conditions. Animal Cognition.  DOWNLOAD PDF.   DOI: 10.1007/s10071-023-01775-0

Liehrmann O., Viitanen A., Riihonen V., Alander E., Koski S.E., Lummaa V., Lansade L. (2022) Multiple handlers, several owner changes and short relationship lengths affect horses’ responses to novel object tests. Applied Animal Behaviour Science.  DOWNLOAD PDF.  DOI: 10.1016/j.applanim.2022.105709

Lynsdale C.L., Seltmann M.W., Nay Oo Mon, Aung H.H., Nyein U.K., Htut W., Lahdenperä M., Lummaa V. (2022) Investigating associations between nematode infection and three measures of sociality in Asian elephants. Behavioral Ecology and Sociobiology 76:87.  DOWNLOAD PDF.  DOI: 10.1007/s00265-022-03192-8

Lalande L.D., Lummaa V., Aung H.H., Htut W., Nyein U.K., Berger V., Briga M. (2022) Sex-specific body mass ageing trajectories in adult Asian elephants. Journal of Evolutionary Biology.  DOWNLOAD PDF.  DOI: 10.1101/2020.12.17.423208v8

Seltmann M.W., Jackson J., Lynch E., Brown J.L., Htut W., Lahdenperä M., Lummaa V. (2022) Sex-specific links between the social landscape and faecal glucocorticoid metabolites in semi-captive Asian elephants. General and Comparative Endocrinology 319: 113990.  DOWNLOAD PDF.  DOI: 10.1016/j.ygcen.2022.113990

Reichert S., Berger V., dos Santos D.J.F., Lahdenperä M., Nyein U.K., Htut W., Lummaa V. (2022) Age related variation of health markers in Asian elephants. Experimental Gerontology 157:111629.  Download PDF.  DOI: 10.1016/j.exger.2021.111629

Berger V., Reichert S., Lahdenperä M., Jackson J., Htut W., Lummaa V. (2021) The elephant in the family: Costs and benefits of elder siblings on younger offspring life-history trajectory in a matrilineal mammal. Journal of Animal Ecology 00:1-15.  Download PDF.  DOI: 10.1111/1365-2656.13573

Liehrmann O., Crawley J.A.H., Seltmann M.W., Feillet S., Nyein U.K., Aung H.H., Htut W., Lahdenperä M., Lansade L. Lummaa V. (2021) Handler familiarity helps to improve working performance during novel situations of semi-captive Asian elephants. Scientific Reports 11:15480.  Download PDF.  DOI: 10.1038/s41598-021-95048-w

Crawley J.A.H., Liehrmann O., dos Santos D.J.F., Brown J., Nyein U.K., Aung H.H., Htut W., Min Oo Z., Seltmann M.W., Webb J.L., Lahdenperä M., Lummaa V. (2021) Influence of handler relationships and experience on health parameters, glococorticoid responses and behaviour of semi-captive Asian elephants. Conservation Physiology 9(1).  Download PDF.  DOI: 10.1093/conphys/coaa116

dos Santos D.J.F., Berger V., Cristofari R., Htut W., Nyein U.K., Aung H.H., Reichert S., Lummaa V. (2020) Seasonal variation of health in Asian elephants. Conservation Physiology 8(1).  Download PDF.  DOI: 10.1093/conphys/coaa119

Jackson J., Mar K.U., Htut W., Childs D.Z., Lummaa V. (2020) Changes in age-structure over four decades were a key determinant of population growth in a long-lived mammal. Journal of Animal Ecology.  DOI: 10.1111/1365‐2656.13290

Lynsdale C.L., Mon N.O., dos Santos D.J.F., Aung H.H., Nyein U.K., Htut W., Childs D., Lummaa V. (2020) Demographic and reproductive associations with nematode infection in a long-lived mammal. Scientific Reports 10(9214).  Download PDF. DOI: 10.1038/s41598-020-66075-w

Dierenfeld E.S., Han Y.A.M., Mar K.U., Aung Aung, Aung Thura Soe, Lummaa V., Lahdenperä M. (2020) Milk composition of Asian elephants (Elephas maximus) in a natural environment in Myanmar during late lactation. Animals 10(725).  Download PDF.  DOI: 10.3390/ani10040725

dos Santos D.J.F., Jackson J., Nyein U.K., Lummaa V. (2020) Sex differences in the reference intervals in health parameters in semicaptive Asian elephants (Elephas maximus) from Myanmar. Journal of Zoo and Wildlife Medicine 51(1):25-38.  Download PDF.  DOI: 10.1638/2018-0818.

Crawley J.A.H., Lahdenperä M., Oo Z.M., Htut W., Nandar H., Lummaa V. (2020) Taming age mortality in semi-captive Asian elephants. Scientific Reports 10(1889).  Download PDF.  DOI: 10.1038/s41598-020-58590-7

Webb J.L., Crawley J.A.H., Seltmann M.W., Liehrmann O., Hemmings N., Nyein K.U., Aung H.H., Htut W., Lummaa V., Lahdenperä, M. (2020) Evaluating the reliability of non-specialist observers in the behavioural assessment of semi-captive Asian elephant welfare. Animals 10(167).  Download PDF.  DOI: 10.3390/ani10010167

Seltmann M.W., Ukonaho S., Reichert S., Dos Santos D., Nyein K.U., Htut W., Lummaa V. (2020) Faecal clucocorticoid metabolites and H/L ratio are related markers of stress in semi-captive Asian timber elephants. Animals 10(1), 94.  Download PDFDOI: 10.3390/ani10010094

Chapman S., Jackson J., Htut W., Lummaa V., Lahdenperä M. (2019) Asian elephants exhibit post-reproductive lifespans. BMC Evolutionary Biology.  Download PDFDOI: 10.1186/s12862-019-1513-1

Lahdenperä M., Jackson J., Htut W., Lummaa, V. (2019) Capture from the wild has long-term costs on reproductive success in Asian elephants. Proceedings of the Royal Society B, Biological Sciences 286(1912).  Download PDFDOI: 10.1098/rspb.2019.1584

Lynch E. C., Lummaa, V., Htut W., Lahdenperä M. (2019) Evolutionary significance of maternal kinship in a long-lived mammal. Phil. Trans. R. Soc B. 374: 20180067.  Download PDFDOI: 10.1098/rstb.2018.0067

Reichert S., Berger V., Jackson J., Chapman S. N., Htut W., Mar K. U., Lummaa, V. (2019) Maternal age at birth shapes offspring life-history trajectory across generations in long-lived Asian elephants. Journal of Animal Ecology.  Download PDFDOI: 10.1111/1365‐2656.13049

Jackson J., Childs, D.Z., Mar K.U., Htut W., Lummaa V. (2019) Long-term trends in wild-capture and population dynamics point to an uncertain future for captive elephants. Proceedings of the Royal Society B 286(1899).  Download PDFDOI: 10.1098/rspb.2018.2810

Seltmann M., Helle S., Htut W., Lahdenperä M. (2019) Males have more aggressive and less sociable personalities than females in semi-captive Asian elephants. Scientific Reports.  Download PDF.  DOI: 10.1038/s41598-019-39915-7

Crawley J.A.H., Lahdenperä M., Seltmann M.W., Htut W., Aung H.H., Nyein K., & Lummaa V. (2019) Investigating changes within the handling system of the largest semi-captive population of Asian elephants. PLoS ONE 14(1).  Download PDF.  DOI: 10.1371/journal.pone.0209701

Lahdenperä M., Mar K.U., Courtiol A. & Lummaa V. (2018) Differences in age-specific mortality between wild-caught and captive-born Asian elephants. Nature Communications.  Download PDF.  DOI: 10.1038/s41467-018-05515-8

Seltmann M.W., Helle S., Adams M.J., Mar K.U. & Lahdenperä M. (2018) Evaluating the personality structure of semi-captive Asian elephants living in their natural habitat. Royal Society Open Science.  Download PDF.  DOI: 10.1098/rsos.172026

Han Y.A.M, Dierenfeld E.S., Mar K.U., Lahdenperä M., Lummaa V. and Aung A.A. (2018) Simple, Practical Method for Measurement of Fat in Milk, Applied to Mid- to Late-Lactating Working Elephants in Myanmar. Nov Tech Nutri Food Sci. 2(4). NTNF.000541.  Download PDF.  DOI: 10.31031/NTNF.2018.02.000541

Lynsdale C.L., Mumby H.S., Hayward A.D., Mar K.U. & Lummaa V. (2017) Parasite-associated mortality in a long-lived mammal: Variation with host age, sex, and reproduction. Ecology and Evolution November 2017.  Download PDF.  DOI: 10.1002/ece3.3559

Crawley J.A.H., Mumby H.S., Chapman S.N., Lahdenperä M., Mar K.U., Htut W., Thura Soe A., Aung H.H. & Lummaa V. (2017) Is bigger better? The relationship between size and reproduction in female Asian elephants. Journal of Evolutionary Biology July 2017. Download PDF.  DOI: 10.1111/jeb.13143

Lahdenperä M., Mar, K.U., Lummaa V. (2016) Nearby grandmother enhances calf survival and reproduction in Asian elephants. Scientific Reports 6: 27213.  Download PDF.  DOI: 10.1038/srep27213

Chapman S.N., Mumby H.S., Crawley J.A.H., Mar K.U., Htut W., Thura Soe A., Aung H.H., Lummaa V. (2016) How Big Is It Really? Assessing the Efficacy of Indirect Estimates of Body Size in Asian Elephants. PLoS One 11(3):e0150533.  Download PDF.  DOI: 10.1371/journal.pone.0150533

Crawley J.A.H., Chapman S.N., Lummaa V. & Lynsdale C.L. (2016) Testing storage methods of faecal samples for subsequent measurement of helminth egg numbers in the domestic horse. Veterinary Parasitology.  Download PDF.  DOI: 10.1016/j.vetpar.2016.03.012

Lahdenperä M., Mar, K.U., Lummaa V. (2016) Short-term and delayed effects of mother death on calf mortality in Asian elephants. Behavioral Ecology 27(1).  Download PDF.  DOI: 10.1093/beheco/arv136

Mumby H.S., Chapman S.N., Crawley J.A.H., Mar K.U., Htut W., Thura Soe A., Aung H.H. & Lummaa V. (2015) Distinguishing between determinate and indeterminate growth in a long-lived mammal. BMC evolutionary biology 15: 214.  Download PDF.  DOI: 10.1186/s12862-015-0487-x

Mumby H.S., Mar K.U., Hayward A.D., Htut W., Htut-Aung Y., & Lummaa V. (2015) Elephants born in the high stress season have faster reproductive senescence. Scientific Reports 5: 13946.  Download PDF.  DOI: 10.1038/srep13946

Lynsdale C.L., Franco dos Santos D., Hayward A.D., Mar K.U., Htut W., Aung H.H., Soe A.T., Lummaa V. (2015) A standardised faecal collection protocol for intestinal helminth egg counts in Asian elephants, Elephas maximus. International Journal of Parasitology: Parasites and Wildlife 4:307–315.  Download PDF.  DOI: 10.1016/j.ijppaw.2015.06.001

Mumby H.S., Mar K.U., Thitaram C., Courtiol A., Towiboon P., Min-Oo Z., Htut-Aung Y, Brown J.L., Lummaa V. (2015) Stress and body condition are associated with demography of Asian elephants. Conservation Physiology 3:1.  Download PDF.  DOI: 10.1093/conphys/cov030

Hayward A.D., Mar, K.U., Lahdenperä M., Lummaa V. (2014): Early reproductive investment, senescence and lifetime reproductive success in female Asian elephants. Journal of Evolutionary Biology 27: 772-783.  Download PDF.  DOI: 10.1111/jeb.12350

Lahdenperä M., Mar, K.U., Lummaa V. (2014): Reproductive cessation and post-reproductive lifespan in female Asian elephants compared to humans. Frontiers in Zoology 11:54.  Download PDF.  DOI: 10.1186/s12983-014-0054-0

Mumby H.S., Courtiol A., Mar K.U., Lummaa V. (2013): Climatic variation and age-specific survival in Asian elephants from Myanmar. Ecology 94:1131-1141.  Download PDF.  DOI: 10.1890/12-0834.1

Mumby H.S., Courtiol A., Mar K.U., Lummaa V. (2013): Birth seasonality and calf mortality in a large population of Asian elephants. Ecology and Evolution 11:3794-3803.  Download PDF.  DOI: 10.1002/ece3.746

Robinson M.R., Mar K.U., Lummaa V. (2012):
Senescence and age-specific trade-offs between reproduction and survival in female Asian elephants. Ecology Letters 15:260-266.  Download PDF.  DOI: 10.1111/j.1461-0248.2011.01735.x

Mar, K.U., Lahdenperä M., Lummaa V. (2012): Causes and correlates of calf mortality in captive Asian Elephants. PLoS One 7(3):e32335.  Download PDF.  DOI: 10.1371/journal.pone.0032335