Europe

The migratory painted lady butterfly can cross the Sahara

A study with the participation of Constantí Stefanescu, researcher at CREAF and the Granollers Natural Science Museum, has revealed that the migratory painted lady butterfly makes a trip which is even more difficult than previously thought. While it was already known that the butterfly travels from Europe to Morocco, chemical analyses have shown that it can even go as far as the Sahel, in the process crossing the enormous Sahara Desert. 

Constanti stefanescu @en Europe Migration Morocco Painted lady butterfly Sahara @en Vanessa cardui @en

The response of leaf unfolding phenology to climate warming has significantly reduced in Central Europe

Leaf unfolding occurred on average about 4 days earlier every one degree increase in spring temperature between 1980 and 1994, whereas this value dropped to -2.3 days C-1 between 1999 and 2013, a decrease of over 40%. According to this study recently published in the jorunal Nature with the participaction of Josep Peñuelas, researcher from CSIC at CREAF, warmer winters and photoperiod are forcing plants to control their phenology calendars.

Climate change Europe Forests Geu @en Global change Josep peñuelas @en Leaf Temperatures @en Warning