Body Size Differences between Foraging and Intranidal Workers of the Monomorphic Ant Lasius niger

Mateusz Okrutniak , Bartosz Rom , Filip Turza , Irena Grześ

Abstract

The association between the division of labour and worker body size of ants is typical for species that maintain physical castes. Some studies showed that this phenomenon can be also observed in the absence of distinct morphological subcastes among workers. However, the general and consistent patterns in the size-based division of labour in monomorphic ants are largely unidentified. In this study, we performed a field experiment to investigate the link between worker body size and the division of labour of the ant Lasius niger (Linnaeus, 1758), which displays limited worker size variation. We demonstrated that the body size of workers exploring tuna baits is slightly but significantly smaller than the size of workers located in the upper parts of the nest. Comparing the present results with existing studies, large workers do not seem to be dedicated to work outside the nest. We suggest that monomorphic workers of certain body sizes are flexible in the choice of task they perform, and food type may be the important determinant of this choice.
Author Mateusz Okrutniak (FoAS / Department of Zoology and Animal Welfare)
Mateusz Okrutniak,,
- Department of Zoology and Animal Welfare
, Bartosz Rom (FoAS / Department of Zoology and Animal Welfare)
Bartosz Rom,,
- Department of Zoology and Animal Welfare
, Filip Turza - Jagiellonian University (UJ)
Filip Turza,,
-
, Irena Grześ (FoAS / Department of Zoology and Animal Welfare)
Irena Grześ,,
- Department of Zoology and Animal Welfare
Journal seriesInsects, ISSN 2075-4450, (N/A 100 pkt)
Issue year2020
Vol11
No7
Pages1-8
Publication size in sheets0.5
Article number433
Keywords in Englishants; body size; monomorphism; task division
ASJC Classification1109 Insect Science
DOIDOI:10.3390/insects11070433
URL https://www.mdpi.com/2075-4450/11/7/433/pdf
Languageen angielski
LicenseJournal (articles only); author's original; Uznanie Autorstwa (CC-BY); after publication
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Body Size Differences between Foraging and Intranidal Workers of the Monomorphic Ant Lasius niger of 23-07-2020
1,15 MB
Score (nominal)100
Score sourcejournalList
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.166; WoS Impact Factor: 2019 = 2.220 (2)
Citation count*
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FinansowanieThis Research was financed by the Ministry of Science and Higher Education of the Republic of Poland, BM 4257/2016.
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