Behavioral Ecology and Sociobiology

, Volume 68, Issue 12, pp 1985–1993

Behavioral repeatability and personality in pit-building antlion larvae under differing environmental contexts

Original Paper

DOI: 10.1007/s00265-014-1804-x

Cite this article as:
Alcalay, Y., Ovadia, O. & Scharf, I. Behav Ecol Sociobiol (2014) 68: 1985. doi:10.1007/s00265-014-1804-x

Abstract

Over the last decades, there has been growing interest among behavioral ecologists in exploring animal personalities. However, while the foraging behavior of active foragers has been extensively studied, only little is known about that of sit-and-wait predators within the personality framework. We investigated the existence of repeatability and personality in pit-building antlion larvae in the context of foraging (pit construction) and habitat selection (relocation distance and direction) over time and under three environmental contexts: thermal conditions, sand depth, and soil type. Over time, repeatability was much stronger for relocation distance than for movement directionality. Additionally, we observed positive correlations across the two levels of sand depth and soil type but not between thermal conditions. Change in substrate type may induce faster decision-making in these sand-dwelling insects or could be perceived by such insects as a more drastic alteration in their habitat. We suggest that different individuals indeed possess distinct personalities. We also suggest that repeatability should be measured at two levels: the amount of energy expenditure (distances and pit construction) and the pattern of energy expenditure (directionality). Finally, our study illustrates how differing environmental conditions can result in differing levels of plasticity, while largely preserving individual personalities.

Keywords

Animal personality Behavioral syndromes Repeatability Thermal ecology Trap-building predators 

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Department of Life Sciences, Faculty of Natural SciencesBen-Gurion University of the NegevBeer-ShevaIsrael
  2. 2.Department of Zoology, Faculty of Life SciencesTel Aviv UniversityTel AvivIsrael

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