Aina Astudillo Fernández

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During collective movement, animals display a wide variety of mechanisms to maintain cohesion. In some species, individuals rely mainly on following their direct predecessor, thereby forming spectacular processions of individuals in single file. Despite being the simplest case of following behaviour, it is largely absent from the theoretical literature on(More)
Tetranychus urticae is a phytophagous mite that forms colonies of several thousand individuals. These mites construct a common web to protect the colony. When plants become overcrowded and food resources become scarce, individuals gather at the plant apex to form a ball composed of mites and their silk threads. This ball is a structure facilitating group(More)
Collective migrations occur in a wide range of taxa throughout the animal kingdom. Among the most studied examples are the social insects, such as ants during foraging (Hölldobler & Wilson 1990), fish (Sumpter 2009), birds (Bajec & Heppner 2009) and other vertebrates (Couzin & Krauze 2003). Collective migration is also observable in groups with a simpler(More)
Silk is a vector for collective behaviour in many spinning arthropods, including social spiders, social caterpillars, and some spider mites. In this study, the potential for silk-mediated collective choices is evaluated for the two-spotted spider mite Tetranychus urticae. This subsocial mite lives in large colonies on plants, sheltered under a collectively(More)
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