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Restored and artificial wetlands do not support the same waterbird functional diversity as natural wetlands

The restoration of degraded areas and the creation of artificial ecosystems have partially compensated for the continuing loss of natural wetlands. However, the success of these wetlands in terms of the capacity of supporting biodiversity and ecosystem functions is unclear. Natural, restored, and artificially created wetlands present within the Doñana protected area were compared to evaluate if they are equivalent in terms of waterbird functional trait diversity and composition. Functional diversity measures and functional group species richness describing species diet, body mass, and foraging techniques were modelled in 20 wetlands in wintering and breeding seasons. Artificial wetlands constructed for conservation failed to reach the functional diversity of natural and restored wetlands. Unexpectedly, artificial ponds constructed for fish production performed better, and even exceeded natural wetlands for functional richness during winter. Fish ponds stood out as having a unique functional composition, connected with an increase in richness of opportunistic gulls and a decrease in species sensitive to high salinity. Overall, the functional structure of breeding communities was more affected by wetland type than wintering communities. These findings suggest that compensating the loss of natural wetlands with restored and artificial wetlands results in systems with altered waterbird?supported functions. Protection of natural Mediterranean wetlands is vital to maintain the original diversity and composition of waterbird functional traits. Furthermore, restoration must be prioritised over the creation of artificial wetlands, which, even when intended for conservation, may not provide an adequate replacement. informacion[at]ebd.csic.es: Almeida et al. (2020) Comparing the diversity and composition of waterbird functional traits between natural, restored, and artificial wetlands. Freshwater Biology DOI 10.1111/fwb.13618


https://onlinelibrary.wiley.com/doi/full/10.1111/fwb.13618
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Doñana’s Retuerta horse

Doñana's Retuerta horse

The Retuerta horse is mainly located in the Doñana National Park, specifically in the Doñana Biological Reserve, and in the Guadiamar Reserve. It counts with an approximate population of 300 horses. This specimen was used in the past by the people of Doñana as a work animal and as a means of transport, but, nowadays, this animal lives in the wild. In 2003, the population was sampled and its genetic profile and genetic distances facing other breeds were established. The genetic distance tree showed that the Retuerta horses formed a group genetically isolated from the eleven tested breeds. In addition, it was found that 31 of the specimens with biochemical markers were carriers of an allele of the esterase, the "m" allele, which was never previously described in other breeds. Furthermore, it was found in the Retuerta horses in a large proportion another allele of the esterase gene, the "L" allele, which found in a few horses around the world. informacion[at]ebd.csic.es: Calderón & Vega-Pla (2020) El caballo de las Retuertas de Doñana. Pp 256-279 En González-Madrid, R (ed) Doñana y su entorno como Zona Patrimonial. ERA/UPO


https://rio.upo.es/xmlui/bitstream/handle/10433/8486/12.%20Calderon_VegaPla.pdf?sequence=5&isAllowed=y