Hae

Human mediated species introductions are often irreversible, represent a world-wide problem and are considered one of the threats to marine biodiversity. Invasions can have an impact on the native species and communities, ...

Individuals within populations often show repeatable behavioural differences which reflect variation in personality. In contrast to human personality, which has been extensively studied by psychologists ...

Hoarding behaviour (storing food for later use) has evolved to reduce the risk of starvation when resources are scarce. In this thesis, I studied the food-hoarding behaviour of Eurasian pygmy owls (Glaucidium passerinum) ...

Red wood ants (Formica rufa group) impact forest ecosystems in a multitude of ways and can thus be considered as ecosystem engineers. Although they are highly efficacious predators of many arthropods, their nests host a ...