Larger laboratory colonies consume proportionally less energy and have lower per capita brood production in Temnothorax ants

T. T. Cao, Anna Dornhaus

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Colony size can affect individual- and colony-level behavioral and physiological traits in social insects. Changes in behavior and physiology in response to colony growth and development can affect productivity and fitness. Here, we used respirometry to study the relationship between colony size and colony energy consumption in Temnothorax rugatulus ants. In addition, we examined the relationship between colony size and worker productivity measured as per capita brood production. We found that colony metabolic rate scales with colony size to the 0. 78 power and the number of brood scales with the number of workers to the 0. 49 power. These regression analyses reveal that larger ant colonies use proportionally less energy and produce fewer brood per worker. Our findings provide new information on the relationships between colony size and energetic efficiency and productivity in a model ant genus. We discuss the potential mechanisms giving rise to allometric scaling of metabolic rate in ant colonies and the influence of colony size on energy consumption and productivity in general.

Original languageEnglish (US)
Pages (from-to)1-5
Number of pages5
JournalInsectes Sociaux
Volume60
Issue number1
DOIs
StatePublished - 2013

Fingerprint

Temnothorax
energy use and consumption
ant
Formicidae
social insects
energy
energy efficiency
behavior change
growth and development
physiology
productivity
ant colonies
laboratory
social insect

Keywords

  • Ants
  • Colony productivity
  • Colony size
  • Metabolic scaling
  • Temnothorax

ASJC Scopus subject areas

  • Insect Science
  • Ecology, Evolution, Behavior and Systematics

Cite this

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