skip to main content
Idioma:
Primo Search
Clear Search Box
Search in: Busca Geral
Busca Avançada
Busca por Índices

Allometric scaling of foraging rate with trail dimensions in leaf-cutting ants

Bruce, Andrew I ; Burd, Martin

Proceedings of the Royal Society. B, Biological sciences, 2012-06, Vol.279 (1737), p.2442-2447 [Periódico revisado por pares]

England: Royal Society

Texto completo disponível

Citações Citado por
  • Título:
    Allometric scaling of foraging rate with trail dimensions in leaf-cutting ants
  • Autor: Bruce, Andrew I ; Burd, Martin
  • Assuntos: Allometry ; Animals ; Ants ; Ants - physiology ; Appetitive Behavior - physiology ; Atta ; Atta cephalotes ; Atta colombica ; cities ; Foraging ; Formicidae ; humans ; Insect behavior ; Insect colonies ; Leaf cutting ants ; Linear Models ; Locomotion - physiology ; Models, Theoretical ; Multivariate Analysis ; nests ; Orientation - physiology ; Panama ; Plant Leaves ; Population Density ; reproduction ; Scaling ; Social Behavior ; Social insects ; Traffic Flow ; Trails ; Worker insects ; Workforce
  • É parte de: Proceedings of the Royal Society. B, Biological sciences, 2012-06, Vol.279 (1737), p.2442-2447
  • Notas: http://dx.doi.org/10.1098/rspb.2011.2583
    Present address: Biozentrum, Universität Würzburg, Am Hubland, 97074 Würzburg, Bavaria, Germany.
    istex:F6EA4A975EDA0A81CABB3FA9EA0E515CA9B1A3FA
    ark:/67375/V84-WZJKQ1RG-8
    ArticleID:rspb20112583
    href:rspb20112583.pdf
    ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    ObjectType-Article-2
    ObjectType-Feature-1
  • Descrição: Leaf-cutting ants (Atta spp.) create physical pathways to support the transport of resources on which colony growth and reproduction depend. We determined the scaling relationship between the rate of resource acquisition and the size of the trail system and foraging workforce for 18 colonies of Atta colombica and Atta cephalotes. We examined conventional power-law scaling patterns, but did so in a multivariate analysis that reveals the simultaneous effects of forager number, trail length and trail width. Foraging rate (number of resource-laden ants returning to the nest per unit time) scaled at the 0.93 power of worker numbers, the –1.02 power of total trail length and the 0.65 power of trail width. These scaling exponents indicate that individual performance declines only slightly as more foragers are recruited to the workforce, but that trail length imposes a severe penalty on the foraging rate. A model of mass traffic flow predicts the allometric patterns for workforce and trail length, although the effect of trail width is unexpected and points to the importance of the little-known mechanisms that regulate a colony's investment in trail clearance. These results provide a point of comparison for the role that resource flows may play in allometric scaling patterns in other transport-dependent entities, such as human cities.
  • Editor: England: Royal Society
  • Idioma: Inglês
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.