Pnas @en

220 lizards show there to be reciprocal feedback between ecology and evolution

Finches were vital to the formulation of Charles Darwin’s theory of evolution by natural selection. The size and shape of their beaks, highly suited to eating different types of seeds, helped him understand how an animal evolves to adapt to the ecological conditions of its ecosystem. The Galapagos Islands were an ideal laboratory for Darwin, but there was something he overlooked: was it only the finches that had evolved or had the seeds of the plants they fed on evolved a little too?

Article pnas Ecology and evolution Evolutionary ecology Oriol lapiedara @en Oriol lapiedra @ca Pnas @en

A study shows how difficult it is for temperate forests to recover from severe drought

Climate change is making forests all over the world more vulnerable to drought, causing tree mortality episodes with serious ecological and social consequences. As yet, the traits of the vegetation replacing trees that have died as a result of drought are not known.

Climate change forest Drought Enric batllori @en Forest and woodland replacement patterns following drought-related mortality @en Forest draught Francisco lloret @en Paco lloret @en Pnas @en Sandra saura mas @en

Forests are retaining carbon for less and less time

Published in the journal PNAS (Proceedings of the National Academy of Sciences), a study to which the Spanish National Research Council (CSIC) and CREAF have contributed has revealed that the time for which forests retain carbon has fallen by between 0.2% and 0.3% every year in recent decades. Plant mortality is rising due to higher carbon dioxide (CO2) levels and, in particular, warming and droughts.

Atmosphere Geu @en Jordi sardans @en Josep peñuelas @en Pnas @en Reservoirs

Rising temperatures threaten global agricultural production

The production of essential crops such as wheat, maize, rice, and soybean will be substantially reduced. Effective measures for climate change adaptation will be necessary, as well as  improvements in crop genetics in order to reduce the impacts of climate change

Agriculture Climate change Crops Food Geu @en Josep peñuelas @en Maize Pnas @en Production Rice Soybean Temperature Wheat

Remote sensing of leaf pigments will improve climate change models

An international team of researchers co-led by Josep Peñuelas (CSIC and CREAF) has developed a new method for monitoring changes in the photosynthetic activity of perennial conifers throughout the year. This new technique, based on the analysis of remote sensing images captured by satellites, will improve global models of atmospheric carbon capture and permit more precise predictions about climate change.

Carbon Carbon dioxide Chlorophyll Co2 @en Co2 uptake Geu @en Josep peñuelas @en Leaves Photosynthesis Pigments @en Pnas @en Remote sensing Satellites

The loss of soil carbon can accelerate climate change

The journal Nature has today published a study which had the participation of CSIC scientists at CREAF, Marc Estiarte and Josep Peñuelas, which demonstrates the relationship between the release of carbon from soils and the acceleration of climate change.

Carbon Carbon dioxide Climate change Co2 @en Co2 uptake Geu @en Global change Josep peñuelas @en Marc estiarte @en Nature @en Pnas @en Soils

The treeline in Tibet increases slower than temperatures

The forest treeline shifts upward slower than temperature increase, and it can be hindered by densification of shrubs. A number of factors influence upward forest expansion, including the particular plant species growing near trees, climate change, human activity, and terrain morphology. The Tibetan Plateau, practically devoid of human pressures, offers a pristine area for study 

Climate change Competition Forests Geu @en High mountain Josep peñuelas @en Mountain Pnas @en Temperatures @en Tibet @en Treeline @en