Ecology Letters (2012) Abstract Interspecific trait variation has long served as a conceptual
foundation for our understanding of ecological patterns and dynamics. In particular …

Animal personalities or behavioural syndromes are consistent and/or correlated behaviours
across two or more situations within a population. Social insect biologists have measured …

Highlights•Invertebrates representing 98% of all species are neglected in personality
research.•The lack of data confines comparative analyses to unravel personality evolution.• …

How task specialization, individual task performance and within-group behavioural variation
affects fitness is a longstanding and unresolved problem in our understanding of animal …

Group selection may be defined as selection caused by the differential extinction or
proliferation of groups,. The socially polymorphic spider Anelosimus studiosus exhibits a …

Personality differences can be found in a wide range of species across the animal kingdom,
but why natural selection gave rise to such differences remains an open question …

Cheaters—genotypes that gain a selective advantage by taking the benefits of the social
contributions of others while avoiding the costs of cooperating—are thought to pose a major …

Natural populations throughout the tree of life undergo range expansions in response to
changes in the environment. Recent theoretical work suggests that range expansions can …

Behaviour is generally plastic to some degree and allows an animal to react appropriately to
changing and novel conditions. Consequently, a degree of plasticity is predicted to be a key …

It has come to the authors' attention that the data on spider boldness reported in this paper
appear to contain irregularities in the form of an excess of duplicated values. These …