2 Works

Data from: Body condition and food shapes group dispersal but not solitary dispersal in a social spider

Bharat Parthasarathy & Hema Somanathan
Dispersal is important for exploitation of new habitat and for outbreeding. A precondition for sociality in spiders is reduced dispersal propensity leading to largely inbred societies. Despite this, social spiders have been observed to disperse from natal colonies and form new or satellite colonies. Proximate factors shaping dispersal, inter-individual variation in dispersal propensities and any advantages accrued from dispersal remain obscure. In the social spider Stegodyphus sarasinorum, we distinguish two types of dispersal: 1) group...

Data from: Grab my tail: evolution of dazzle stripes and colourful tails in lizards

Gopal Murali, Sami Merilaita & Ullasa Kodandaramaiah
Understanding the functions of animal coloration has been a long-standing question in evolutionary biology. For example, the widespread occurrence of striking longitudinal stripes and colourful tails in lizards begs for an explanation. Experiments have suggested that colourful tails can deflect attacks towards the tail (the ‘deflection’ hypothesis), which is sacrificable in most lizards, thereby increasing the chance of escape. Studies also suggest that in moving lizards, longitudinal body stripes can redirect predators’ strikes towards the...

Registration Year

  • 2018
    2

Resource Types

  • Dataset
    2

Affiliations

  • Indian Institute of Science Education and Research, Thiruvananthapuram
    2
  • University of Turku
    1