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Providing evidence to improve practice

Individual study: Density dependence effects on demographic parameters-A case study of Père David's deer (Elaphurus davidianus) in captive and wild habitats

Published source details

Yuan B.D., Wang L.B., Xie S.B., Ren Y.J., Liu B., Jia Y.Y., Shen H., Sun D.M. & Ruan H.H. (2017) Density dependence effects on demographic parameters-A case study of Père David's deer (Elaphurus davidianus) in captive and wild habitats. Biology and Environment: Proceedings of the Royal Irish Academy, 117, 139-144


This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Release captive-bred individuals to re-establish or boost populations in native range Terrestrial Mammal Conservation

A study in 1997–2016 in a grassland area in Jiangsu province, China (Yuan et al. 2017) found that a population of released captive-bred Père David's deer Elaphurus davidianus, established and increased in number over time. From a total of 82 founders, the population increased to 325 animals by 18 years after the first of these founders were released. In 1998, seven deer were released into a 1,000-ha area in which there were no other Père David's deer. Between 2002 and 2016, a further 75 animals were released. Observations were made with binoculars and using a drone, to estimate the deer population size. No other details of monitoring were provided in the study.

(Summarised by Phil Martin)