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Content with tag conservation biology .

The Cantabrian brown bear's range has expanded up to 17,000 km2 after decades of decline

Researchers at the EBD-CSIC relate the trend to the change of characteristics of the territory occupied by the bears. The study points to the need to adapt management tools for the conservation of the new distribution area of the population of this endangered species. The researchers have observed that while the area with presence of brown bear individuals has increased considerably from the 1990s, the area with presence of bears with cubs has remained stable over time.

Hatcheries are an efficient conservation tool for threatened sea turtle rookeries with high embryonic mortality

Loggerhead clutches suffered high mortality in-situ nests by ghost crabs and flooding. Relocating the doomed eggs to a hatchery reduced these risks.

Climate models predict a severe range contraction and upward shift of suitable habitat for alpine birds

Alpine ecosystems are particularly vulnerable to climate change. For widely distributed alpine specialists, rear-edge populations are disproportionately important. The importance and effects of climatic and landscape variables was assessed for 4 alpine bird species (Pyrrhocorax graculus, Prunella collaris, Montifringilla nivalis, Tichodroma muraria).

Spanish scientists warn: Urgent need for planning of renewable energies to safeguard biodiversity

Spanish researchers warn in a letter that the new projects for renewable enery plants in Spain will affect hundreds of thousands of hectares and that there is no way to offset the huge quantity of valuable habitats that could be lost. Reducing greenhouse gas emissions is a global priority. To meet this goal, the Spanish government is planning 89 GW of wind and solar photovoltaic energy in the draft of the National Integrated Energy and Climate Plan (PNIEC) for 2021–2030. Despite the...

A new subspecies of Manx shearwater to the Canary Islands

The taxonomy of Procellariiformes, particularly petrels and shearwaters, is still unresolved. The Manx shearwater Puffinus puffinus is one of the best studied seabirds worldwide. Most of the information known on this seabird is focused on the northern core populations where the species is abundant. However, the species shows a high number of peripheral populations, which are extremely small and difficult to study in comparison to central populations. Using an integrative approach, this...