Intraspecific differences in the invasion success of the Argentine ant Linepithema humile Mayr are associated with diet breadth

Abstract The Argentine ant, Linepithema humile Mayr, has spread to almost all continents. In each introduced region, L. humile often forms a single large colony (supercolony), the members of which share the haplotype “LH1”, despite the presence of other supercolonies with different genetic structure...

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Autores principales:	Yugo Seko, Koya Hashimoto, Keisuke Koba, Daisuke Hayasaka, Takuo Sawahata
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/be81b462ee724a879af2ea3ad08abb27
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spelling	oai:doaj.org-article:be81b462ee724a879af2ea3ad08abb272021-12-02T14:06:19ZIntraspecific differences in the invasion success of the Argentine ant Linepithema humile Mayr are associated with diet breadth10.1038/s41598-021-82464-12045-2322https://doaj.org/article/be81b462ee724a879af2ea3ad08abb272021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82464-1https://doaj.org/toc/2045-2322Abstract The Argentine ant, Linepithema humile Mayr, has spread to almost all continents. In each introduced region, L. humile often forms a single large colony (supercolony), the members of which share the haplotype “LH1”, despite the presence of other supercolonies with different genetic structures. However, the mechanisms underlying the successful invasion of LH1 ants are unclear. Here, we examined whether diet breadth differs between more successful (LH1) and less successful (LH2, LH3, LH4) L. humile supercolonies in Japan to better understand the processes responsible for invasion success. The standard ellipse areas (SEAs) of δ 13C and δ 15N and their ranges (CR and NR) were used as diet breadth indices. The SEAs of LH1 were much larger than those of the less successful supercolonies despite no differences in the baseline SEAs of arthropods within the supercolony habitats, indicating that the invasion success of a supercolony is associated with its diet breadth. Furthermore, LH1 had a broader CR than the other supercolonies, suggesting that which might be derived from superior resource exploitation ability. Our study highlights the importance of focusing on intraspecific differences in diet breadth among supercolonies when assessing organisms that can potentially invade and become dominant in new habitats.Yugo SekoKoya HashimotoKeisuke KobaDaisuke HayasakaTakuo SawahataNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yugo Seko Koya Hashimoto Keisuke Koba Daisuke Hayasaka Takuo Sawahata Intraspecific differences in the invasion success of the Argentine ant Linepithema humile Mayr are associated with diet breadth
description	Abstract The Argentine ant, Linepithema humile Mayr, has spread to almost all continents. In each introduced region, L. humile often forms a single large colony (supercolony), the members of which share the haplotype “LH1”, despite the presence of other supercolonies with different genetic structures. However, the mechanisms underlying the successful invasion of LH1 ants are unclear. Here, we examined whether diet breadth differs between more successful (LH1) and less successful (LH2, LH3, LH4) L. humile supercolonies in Japan to better understand the processes responsible for invasion success. The standard ellipse areas (SEAs) of δ 13C and δ 15N and their ranges (CR and NR) were used as diet breadth indices. The SEAs of LH1 were much larger than those of the less successful supercolonies despite no differences in the baseline SEAs of arthropods within the supercolony habitats, indicating that the invasion success of a supercolony is associated with its diet breadth. Furthermore, LH1 had a broader CR than the other supercolonies, suggesting that which might be derived from superior resource exploitation ability. Our study highlights the importance of focusing on intraspecific differences in diet breadth among supercolonies when assessing organisms that can potentially invade and become dominant in new habitats.
format	article
author	Yugo Seko Koya Hashimoto Keisuke Koba Daisuke Hayasaka Takuo Sawahata
author_facet	Yugo Seko Koya Hashimoto Keisuke Koba Daisuke Hayasaka Takuo Sawahata
author_sort	Yugo Seko
title	Intraspecific differences in the invasion success of the Argentine ant Linepithema humile Mayr are associated with diet breadth
title_short	Intraspecific differences in the invasion success of the Argentine ant Linepithema humile Mayr are associated with diet breadth
title_full	Intraspecific differences in the invasion success of the Argentine ant Linepithema humile Mayr are associated with diet breadth
title_fullStr	Intraspecific differences in the invasion success of the Argentine ant Linepithema humile Mayr are associated with diet breadth
title_full_unstemmed	Intraspecific differences in the invasion success of the Argentine ant Linepithema humile Mayr are associated with diet breadth
title_sort	intraspecific differences in the invasion success of the argentine ant linepithema humile mayr are associated with diet breadth
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/be81b462ee724a879af2ea3ad08abb27
work_keys_str_mv	AT yugoseko intraspecificdifferencesintheinvasionsuccessoftheargentineantlinepithemahumilemayrareassociatedwithdietbreadth AT koyahashimoto intraspecificdifferencesintheinvasionsuccessoftheargentineantlinepithemahumilemayrareassociatedwithdietbreadth AT keisukekoba intraspecificdifferencesintheinvasionsuccessoftheargentineantlinepithemahumilemayrareassociatedwithdietbreadth AT daisukehayasaka intraspecificdifferencesintheinvasionsuccessoftheargentineantlinepithemahumilemayrareassociatedwithdietbreadth AT takuosawahata intraspecificdifferencesintheinvasionsuccessoftheargentineantlinepithemahumilemayrareassociatedwithdietbreadth
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Intraspecific differences in the invasion success of the Argentine ant Linepithema humile Mayr are associated with diet breadth

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