Preliminary results of the first edition of this project indicate that most of the Spanish vertebrate species included in the IUCN Red List
IUCN Red List
and with an outdated record that have been analyzed, require the utmost attention in the foreseen climate change scenarios.
Unfortunately, there is still a significant list of Red List species present in Spain that are outdated, as well as species that, although they have been re-evaluated, the recent worsening of their threat status could make them more vulnerable to climate change. Thus, according to the Spanish Committee of the IUCN, it is necessary to have robust predictions of their medium-term future in order to urge the competent authorities to take the necessary measures in time.
In this sense, the actions of this project are aimed at increasing the number of species analyzed, involving the maximum number of collaborating entities in these actions and continuing with the dissemination of the results.
The overall objective of the project has been to increase the number of distribution models in climate change scenarios for species present in Spain that are threatened in the IUCN Red List and to raise awareness of those with the worst prospects.
The specific objectives were as follows:
In this work, ten species of threatened vertebrates in Spain have been analyzed and relevant and useful conclusions have been obtained to improve the management of these species for conservation purposes. Specifically, the potential effect of different climate change scenarios on the distribution of these species has been evaluated: Iberian imperial eagle (Aquila adalberti), rabbit (Oryctolagus cuniculus), pond turtle (Mauremys leprosa), mountain lizard (Iberolacerta monticola), pallaresa lizard (Iberolacerta aurelioi), broom hare (Lepus castroviejoi), Canarian shrew (Crocidura canariensis), bearded vulture (Gypaetus barbatus), Balearic toad (Alytes muletensis) and Moorish tortoise (Testudo graeca).
For this purpose, species distribution models (specifically the favorability function) have been used, a tool that allows predicting how climate change could affect distributions, providing precise spatial information on the vulnerability of these species. For the construction of the models, a series of climatic and non-climatic predictor variables (topographic, spatial and anthropic activity), as well as different climate change scenarios, have been selected.
As main conclusions, it was observed that the favourable potential distribution for six of these species (imperial eagle, rabbit, mountain lizard, Canarian shrew, bearded vulture and Balearic toad) could be negatively affected by the effects of climate change to a greater or lesser degree, with losses of areas with favourable conditions for these species. For the pond turtle, a positive evolution was found, while for the remaining three species (lizard, broom hare and black tortoise) hardly any significant differences were found in their favorable potential distribution.
In any case, these results confirm the need for IUCN and relevant entities to implement climate change adaptation measures for the most vulnerable species, both legislative and ex situ and in situ conservation measures, in the short term. For this reason, a report on the status of each of the species has been sent to the IUCN Red List office, paying attention to those with the worst prognosis.
Finally, the project has tried to inform and raise awareness among the population about the effects of climate change on the conservation status of these species, through different actions in digital format (such as the publication of an infographic or an informative brochure) as well as through talks and participation in the II Ibero-American Congress of Biogeography and the XV Congress of the SECEM.
Monitoring the effects of climate change on endangered vertebrates using species distribution modeling (ECCEVA)