Artículo

Felden, A.; Paris, C.I.; Chapple, D.G.; Haywood, J.; Suarez, A.V.; Tsutsui, N.D.; Lester, P.J.; Gruber, M.A.M. "Behavioural variation and plasticity along an invasive ant introduction pathway" (2018) Journal of Animal Ecology. 87(6):1653-1666
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Abstract:

Once established in new areas, introduced species may exhibit changes in their biology due to phenotypic plasticity, novel selection pressures and genetic drift. Moreover, the introduction process itself has been hypothesised to act as a selective filter for traits that promote invasiveness. We tested the hypothesis that behaviours thought to promote invasiveness—such as increased foraging activity and aggression—are selected for during invasion by comparing traits among native and introduced populations of the widespread Argentine ant (Linepithema humile). We studied Argentine ant populations in the native range in Argentina and in three invaded regions along an introduction pathway: California, Australia and New Zealand. In each region, we set up 32 experimental colonies to measure foraging activity and interspecific aggression in a subset of the study regions. These colonies were subject to experimental manipulation of carbohydrate availability and octopamine, a biogenic amine known to modulate behaviour in insects, to measure variation in behavioural plasticity. We found variation in foraging activity among populations, but this variation was not consistent with selection on behaviour in relation to the invasion process. We found that colonies with limited access to carbohydrates exhibited unchanged exploratory behaviour, but higher exploitation activity and lower aggression. Colonies given octopamine consistently increased foraging behaviour (both exploration and exploitation), as well as aggression when also sugar-deprived. There was no difference in the degree of behavioural response to our experimental treatments along the introduction pathway. We did not find support for selection of behavioural traits associated with invasiveness along the Argentine ant's introduction pathway or clear evidence for an association between the introduction process and variation in behavioural plasticity. These results indicate that mechanisms promote behavioural variation in a similar fashion both in native and introduced ranges. Our results challenge the assumption that introduced populations always perform better in key behavioural traits hypothesised to be associated with invasion success. © 2018 The Authors. Journal of Animal Ecology © 2018 British Ecological Society

Registro:

Documento: Artículo
Título:Behavioural variation and plasticity along an invasive ant introduction pathway
Autor:Felden, A.; Paris, C.I.; Chapple, D.G.; Haywood, J.; Suarez, A.V.; Tsutsui, N.D.; Lester, P.J.; Gruber, M.A.M.
Filiación:Centre for Biodiversity and Restoration Ecology, School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
Departamento Ecología, Genética y Evolución, Universidad de Buenos Aires, Buenos Aires, Argentina
School of Biological Sciences, Monash University, Clayton, VIC, Australia
School of Mathematics and Statistics, Victoria University of Wellington, Wellington, New Zealand
Department of Animal Biology and Department of Entomology, University of Illinois, Urbana, IL, United States
Department of Environmental Science, Policy and Management, University of California - Berkeley, Berkeley, CA, United States
Palabras clave:behavioural plasticity; behavioural variation; biological invasions; introduction pathway; invasive species; aggression; ant; behavioral response; biological invasion; foraging behavior; genetic drift; interspecific competition; introduced species; invasive species; invasiveness; Argentina; Australia; California; New Zealand; United States; Hexapoda; Linepithema humile
Año:2018
Volumen:87
Número:6
Página de inicio:1653
Página de fin:1666
DOI: http://dx.doi.org/10.1111/1365-2656.12886
Título revista:Journal of Animal Ecology
Título revista abreviado:J. Anim. Ecol.
ISSN:00218790
CODEN:JAECA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00218790_v87_n6_p1653_Felden

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Citas:

---------- APA ----------
Felden, A., Paris, C.I., Chapple, D.G., Haywood, J., Suarez, A.V., Tsutsui, N.D., Lester, P.J.,..., Gruber, M.A.M. (2018) . Behavioural variation and plasticity along an invasive ant introduction pathway. Journal of Animal Ecology, 87(6), 1653-1666.
http://dx.doi.org/10.1111/1365-2656.12886
---------- CHICAGO ----------
Felden, A., Paris, C.I., Chapple, D.G., Haywood, J., Suarez, A.V., Tsutsui, N.D., et al. "Behavioural variation and plasticity along an invasive ant introduction pathway" . Journal of Animal Ecology 87, no. 6 (2018) : 1653-1666.
http://dx.doi.org/10.1111/1365-2656.12886
---------- MLA ----------
Felden, A., Paris, C.I., Chapple, D.G., Haywood, J., Suarez, A.V., Tsutsui, N.D., et al. "Behavioural variation and plasticity along an invasive ant introduction pathway" . Journal of Animal Ecology, vol. 87, no. 6, 2018, pp. 1653-1666.
http://dx.doi.org/10.1111/1365-2656.12886
---------- VANCOUVER ----------
Felden, A., Paris, C.I., Chapple, D.G., Haywood, J., Suarez, A.V., Tsutsui, N.D., et al. Behavioural variation and plasticity along an invasive ant introduction pathway. J. Anim. Ecol. 2018;87(6):1653-1666.
http://dx.doi.org/10.1111/1365-2656.12886