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      https://www.ias.ac.in/article/fulltext/jbsc/034/03/0435-0444

    • Keywords

       

      Attraction to kin; chemical cues; Bufo melanostictus; group living; species and kin discrimination; sensory basis of kin recognition; toad; visual cues

    • Abstract

       

      In experiments with specially designed choice tanks, tadpoles of Bufo melanostictus spend significantly greater amounts of time near kin than near non-kin. However, in the absence of kin members, they prefer to spend more time near non-kin rather than stay away in isolation in the opposite blank zone with no company. This implies that association of toad tadpoles with their kin is due to attraction rather than repulsion from non-kin. Experiments designed to elucidate the sensory basis of kin recognition showed that toad tadpoles recognize their kin based on chemical cues rather than visual cues. They can also discriminate between homospecific non-kin and heterospecific (Sphaerotheca breviceps) tadpoles since the tadpoles spent significantly greater amounts of time near the former than near the latter. These findings suggest that where kin members are unavailable, selection may have favoured living with non-kin so as to derive benefits from group living and that a phenotype-matching mechanism may operate for both kin and species discrimination in B. melanostictus.

    • Author Affiliations

       

      Lilly Margaret Eluvathingal1 Bhagyashri A Shanbhag1 Srinivas K Saidapur1

      1. Department of Zoology, Karnatak University, Dharwad 580 003, India
    • Dates

       
  • Journal of Biosciences | News

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