Etiqueta: Lluis brotons
Climate change affects birds in Europe and North-America differently than in the Mediterranean, and could expose them to a climate trap17 de February 2021Anna Ramon Revilla
The behavior of bird communities in Europe and in the United States and Canada due to climate change is different than in the Mediterranean area. It changes faster in winter, when they migrate, than in spring, when they nest.
We participate in Europabon, the biodiversity observation project at the service of European public policies28 de December 2020Adriana Clivillé
More than 4,400 terrestrial and freshwater species are threatened by changes in the fire regime. While many species are at risk by the increased frequency and intensity of fire, its suppression can be harmful to some life forms and ecosystems.
We have published the first international CREAF's newsletter with the purpose of improving our visibility, reputation and recruitment of talent. Its common thread is ecology as a solution and it includes current events as diverse as 'la Caixa' postdoctoral scholarships with the experience of Oriol Lapiedra and the opinion of Marc Palahí, director of the European Forest Institute, about his previous work with us.
Creating less flammable landscapes would as much as halve the area expected to be affected by fire in the next 30 years28 de August 2020Adriana Clivillé
Using mathematical models, a joint Spanish and Portuguese study has shown that altering the landscape, so as to reduce vegetation density and combustibility for example, and promoting farming activities of high natural value would drastically reduce the amount of land damaged by fire.
The need to fit the pieces of a currently fragmented landscape has led the European Union and the various territorial administrations to promote green infrastructure. This type of planning could secure ecosystem services and increase the connectivity of the Natura 2000 network, while improving the coverage of species of conservation interest in the EU beyond the current protected areas.
Research led by two French institutions shows that farmland comprising small fields sown with different types of crops is conducive to plant and animal diversity. Promoting such landscapes would help make up for the loss of natural and semi-natural habitats between crops.
CREAF and ICO (Catalan Ornithological Institute) researchers Sergi Herrando and Lluís Brotons have participated in a study that shows populations of birds described as “mountain specialists” to have fallen by 10% in a decade in Europe. The situation is even more alarming in the Pyrenees and elsewhere in the Iberian Peninsula, where mountain bird populations fell by 21%.
Two CREAF researchers have taken part in the study, which shows that small, irregularly shaped fields on farmland boost the number and abundance of species. This is because pollinators use crop borders as highways or corridors for movement and protection. The trend of ever larger crop fields is endangering insect pollinator populations and their ability to pollinate crops
In many ecosystems, fire promotes a greater variety of species of plants and animals since it creates a more diverse set of environments. The positive effects of fire cannot be generalized to all aspects of an ecosystem; profound knowledge about the local species and fire regime is crucial. Insights from the study are useful for planning management of forest biomass fuel, controlled burnings, and forest fire suppression.
A study by CTFC and CREAF scientists has led to the development of a mathematical model which predicts drought stress in forests. The research shows that forest drought stress depends on climatic conditions as well as vegetation and soil characteristics.
According to a study in which CREAF participated, the populations of birds or butterflies living in open habitats have been negatively affected by the loss of field and scrubland habitat. Conversely, species which live in forests have been favored. These variations were related with changes in the Catalonian (and Mediterranean) landscape over the last few decades.
A CEED (Centre of Excellence for Environmental Decisions) Research Fellow has been recently awarded one of the five Victorian Postdoctoral Research Fellowships. He will travell to Spain to study the threat of fires to biodiversity at the CTFC (Forest Sciences Centre of Catalonia) and CREAF (Centre of Ecological Research and Forestry Applications).
InForest mixed unity, composed by CTFC and CREAF, has published the first images taken by drones of the burned area from Òdena's wildfire (Barcelona area), occurred last july which burned more than 1.200 ha. InForest is pioneer in drones use for ecology and conservation research.
Scientists identify the 13 most important research challenges to face global change in the Mediterranean region3 de February 2015J.Luis Ordóñez
Scientists consider it key to understand why droughts kill so many trees and the influence of local forest histories on tree mortality. They also warn that we know very little about the joined effects of different disturbances on each ecosystem, and highlight the necessity to plan research projects covering more time and space.
A new model of landscape evolution, developed by a group of Catalan and Canadian researchers, identifies that the ability to extinguish fire is essential in the explanation of the fire patterns in Catalan territory. The model also shows that, if current climate trends continue, the burned area could increase by more than 60% in the next 20 years.