The evolution of social behaviour in Blaberid cockroaches with diverse habitats and social systems: phylogenetic analysis of behavioural sequences

摘要: The adequacy and utility of behavioural characters in phylogenetics is widely acknowledged, especially for stereotyped behaviours. However, the most common behaviours are not stereotyped, these usually seen as inappropriate or more difficult to analyze a phylogenetic context. A few methods have been proposed deal with such data, although they never tested on samples larger than six species, which limits their evolutionary interest. In present study, we perform observations 13 cockroach species derive successive event-pairing method. We combine morphological molecular data (approximately 6800 bp) study 41 species. then reconstruct ancestral states evolution social behaviour insects regard systems (i.e. solitary, gregarious, subsocial) diversity habitat choice. report first time that nonstereotyped adequate analyses: no homoplastic traditional support several relationships discuss. From an perspective, show solitary Thanatophyllum akinetum does display original interactions, suggesting inertia interactive despite radical change structure. Conversely, subsocial Parasphaeria boleiriana shows could result from its peculiar system habitat. conclude approaches studies useful deciphering discriminating between different modalities, even characters.(c) 2013 Linnean Society London, Biological Journal Society, 2014, 111, 58-77.