Andalusian Envorinment Awards

Colleagues awarded

Juan Calderón Rubiales, former director of the Doñana Biological Reserve (EBD-CSIC) has been awarded in the last edition of the Environmental Awards of the Junta de Andalucía. Juan ("Perote"), retired now, developed his research and professional career during 40 years in Doñana. The jury has highlighted his contributions to the conservation of Doñana, his commitment, his capacity for consensus and his important contributions to knowledge in the defense and improvement of the environment. At the same time, the harbor of Sevilla has been awarded for its management of the sediments from the maintenance dredging of the Guadalquivir river. Using a protocol designed by Miguel Ferrer's team (EBD-CSIC), the creation of suitable habitats for the rest, reproduction and breeding of water birds and other species of interest has been achieved in sediment depots. It is highlighted that this project is an example of how the economic development of a region can be reconciled with the conservation of the environment as part of the emerging philosophy of "Working with nature". CONGRATULATIONS!!

Press release (Junta de Andalucía)


Generalized hybridization between commercial and native individuals of bumble bees

Generalized hybridization between commercial and native individuals of bumble bees

Every year more than 1 million commercial bumblebee colonies are deployed in greenhouses worldwide for their pollination services. While commercial pollinators have been an enormous benefit for crop production, their use is emerging as an important threat. Commercial pollinators have been linked to pathogen spillover, and their introduction outside their native area has had devastating effects on native pollinators. A more pervasive but underappreciated threat is their potential impact on the genetic integrity of native pollinators. A sampling and genotyping?plus?phenotyping protocol was set up to evaluate the presence and extent of hybridization between commercial and native individuals of Bombus terrestris in south?western Spain, a region experiencing a huge propagule pressure of non?native genotypes due to the massive use of commercial colonies for crop pollination. Genomic data show clear evidence of generalized hybridization between native and introduced commercial bumblebee lineages in southern Spain. Only 19% of analysed individuals were assigned with high confidence to the pure native genetic cluster and >45% of sampled specimens were first?generation hybrids or backcrosses between native and commercial genotypes, indicating that genetic introgression is pervasive in southern Spain. Although the frequency of commercial genotypes sharply declined with the distance to greenhouses, non?native alleles have introgressed into native populations inhabiting protected natural parks >60 km away from commercial bumblebee release areas. As pollination services demand will increase in the coming years, only a more restrictive regulation of commercial lines could mitigate their negative impacts on the genetic integrity of native pollinators, avoid processes of genetic homogenization, and prevent the potential disruption of local adaptations. informacion[at] Bartomeus et al (2020) Safeguarding the genetic integrity of native pollinators requires stronger regulations on commercial lines. Ecological Solutions and Evidences. Doi 10.1002/2688-8319.12012