2026-06-27T15:46:29Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/1001112025-03-18T15:48:02Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author De Oliveira Silva, Rafael author Cortés Gardyn, Óscar author Hiemstra, Sipke-Joost author Oliveira Marques, Joao author Tixier-Boichard, Michele author Moran, Dominic 2024-02-07T17:51:30Z 2024-02-07T17:51:30Z 2021 De Oliveira Silva, Rafael, et al. «Rationalizing Ex Situ Collection of Reproductive Materials for Endangered Livestock Breed Conservation». Ecological Economics, vol. 181, marzo de 2021, p. 106916. DOI.org (Crossref), https://doi.org/10.1016/j.ecolecon.2020.106916. 0921-8009 10.1016/j.ecolecon.2020.106916 https://hdl.handle.net/20.500.14352/100111 1873-6106 https://www.doi.org/10.1016/j.ecolecon.2020.106916 https://www.research.ed.ac.uk/en/publications/rationalizing-ex-situ-collection-of-reproductive-materials-for-en Improvements in ex situ storage of genetic and reproductive materials offer an alternative for endangered livestock breed conservation, but collections should be optimized cost-effectively to avoid duplication, and with reference to the sustainability of in situ breeds. We developed a multi-period chance-constrained optimization model to rationalize collections of endangered livestock breeds at risk of in situ extinction in Spain. The model configures collections by determining the least-cost optimal collection locations, timing and material quantities (semen doses). A decision variable defining an “acceptable level of risk” allows decision makers to specify tolerable levels of in situ breed endangerment when taking ex situ collection and storage decisions. Using data from 18 gene banks we demonstrate how collections can be rationalized, and derive cost curves relating marginal ex situ collection cost and accepted probability of in situ extinction covering the period 2018 to 2060. The modelling framework can be replicated in countries seeking to rationalize ex situ collections under limited conservation budgets and uncertain in situ extinction risks. eng Attribution 4.0 International Rationalizing ex situ collection of reproductive materials for endangered livestock breed conservation journal article 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