Projects per year
2. The model was parameterized from a comprehensive review of captive breeding and wild demography of large bustards. To handle uncertainty in the standards of captive-breeding performance that may be achieved we explored four scenarios of programme quality: ‘full-range’ (parameters sampled across the observed range), ‘below-average’, ‘above-average’ and ‘best possible’ (performance observed in exemplary breeding programmes). Results are evaluated examining i) the probability of captive population extirpation within 50 years and ii) numbers of adult females subsequently established in the wild following release, compared to an alternative strategy of in situ conservation without attempting captive breeding.
3. Successful implementation of captive breeding, involving permanent retention of 20 breeding females and release of surplus juveniles, required collection of many wild eggs and consistent ‘best possible’ performance across all aspects of the programme. Under ‘full-range’ and ‘above-average’ scenarios captive population extirpation probabilities were 73–88% % and 23‒51%% respectively, depending on egg collection rates.
4. Although most (73‒92%) ‘best possible’ programmes supported releases, re-establishment of free-living adults also required effective in situ conservation. Incremental implementation of effective conservation measures over the initial 10 years resulted in more free-living adults within 35 years if eggs were left in the wild without attempting captive breeding.
5. Synthesis and applications. For the great Indian bustard Ardeotis nigriceps, rapid implementation of in situ conservation offers a better chance to avoid extinction than captive breeding. Demographic modelling should be used to examine whether captive breeding is likely to bring net benefits to conservation programmes.
- Ardeotis nigriceps
- captive breeding
- great Indian bustard
- Noah’s Ark
- 34 Citations (Scopus)
- 6 Article
Captive breeding cannot sustain migratory Asian houbara Chlamydotis macqueenii without hunting controlsDolman, P. M., Collar, N. J. & Burnside, R. J., Dec 2018, In: Biological Conservation. 228, p. 357-366 10 p.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile11 Citations (Scopus)13 Downloads (Pure)
Effects of habitat and land use on breeding season density of male Asian Houbara Chlamydotis macqueeniiKoshkin, M., Burnside, R., Collar, N., Guilherme, J., Showler, D. & Dolman, P., Jul 2016, In: Journal of Ornithology. 157, 3, p. 811–823 13 p.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile12 Citations (Scopus)12 Downloads (Pure)
Effects of habitat and livestock on nest productivity of the Asian houbara Chlamydotis macqueenii in Bukhara Province, UzbekistanKoshkin, M., Burnside, R. J., Packman, C. E., Collar, N. J. & Dolman, P. M., Aug 2016, In: European Journal of Wildlife Research. 62, 4, p. 447–459 13 p.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile16 Citations (Scopus)24 Downloads (Pure)