An exotic species becomes an invasive one when it forms stable populations that expand on the new territory. One hypothesis attempting to explain this process predicts that exotic plants lose the herbivores associated...
A doctoral thesis read at the CREAF, at the UAB, attempts to characterise the social factors involved in the differentiation between workers and queens in ant colonies. Investigating ants' behavioural mechanisms, both physiological and pheromonal, this work confirms that both the queen and the workers influence...
The process by which plants are used to remove metals from contaminated soils is called phytoremediation. Phytoremediation plants must have a very high tolerance to metals, must be resistant to various factors and should not transfer the metals to their leaves,...
