Universidad Peruana Cayetano Heredia

Local Host Adaptation and Use of a Novel Host in the Seed Beetle Megacerus eulophus

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dc.contributor.author Stotz, Gisela C.
dc.contributor.author Suárez, Lorena H.
dc.contributor.author Gonzáles, Wilfredo L.
dc.contributor.author Gianoli, Ernesto
dc.date.accessioned 2022-01-04T20:31:49Z
dc.date.available 2022-01-04T20:31:49Z
dc.date.issued 2013
dc.identifier.uri https://hdl.handle.net/20.500.12866/10699
dc.description.abstract Spatial variation in host plant availability may lead to specialization in host use and local host adaptation in herbivorous insects, which may involve a cost in performance on other hosts. We studied two geographically separated populations of the seed beetle Megacerus eulophus (Coleoptera: Bruchidae) in central Chile: a population from the host Convolvulus chilensis (in Aucó) and a population from C. bonariensis (in Algarrobo). In Aucó C. chilensis is the only host plant, while in Algarrobo both C. bonariensis and C. chilensis are available. We tested local adaptation to these native host plants and its influence on the use of another, exotic host plant. We hypothesized that local adaptation would be verified, particularly for the one-host population (Aucó), and that the Aucó population would be less able to use an alternative, high-quality host. We found evidence of local adaptation in the population from C. chilensis. Thus, when reared on C. chilensis, adults from the C. chilensis population were larger and lived longer than individuals from the C. bonariensis population, while bruchids from the two populations had the same body size and longevity when reared on C. bonariensis. Overall, bruchids from the C. chilensis population showed greater performance traits than those from the C. bonariensis population. There were no differences between the bruchid populations in their ability to use the alternative, exotic host Calystegia sepium, as shown by body size and longevity patterns. Results suggest that differences in local adaptation might be explained by differential host availability in the study populations. en_US
dc.language.iso eng
dc.publisher Public Library of Science
dc.relation.ispartofseries PLoS ONE
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Animals en_US
dc.subject geographical variation (species) en_US
dc.subject controlled study en_US
dc.subject Geography en_US
dc.subject animal experiment en_US
dc.subject Chile en_US
dc.subject Phenotype en_US
dc.subject Host-Parasite Interactions en_US
dc.subject body size en_US
dc.subject beetle en_US
dc.subject host en_US
dc.subject longevity en_US
dc.subject Longevity en_US
dc.subject Hexapoda en_US
dc.subject population differentiation en_US
dc.subject Adaptation, Physiological en_US
dc.subject Animal Population Groups en_US
dc.subject Bruchinae en_US
dc.subject Calystegia en_US
dc.subject Calystegia sepium en_US
dc.subject Coleoptera en_US
dc.subject Convolvulus en_US
dc.subject Convolvulus bonariensis en_US
dc.subject Convolvulus chilensis en_US
dc.subject Eulophus en_US
dc.subject evolutionary adaptation en_US
dc.subject exotic species en_US
dc.subject Megacerus en_US
dc.subject Megacerus eulophus en_US
dc.subject Seeds en_US
dc.title Local Host Adaptation and Use of a Novel Host in the Seed Beetle Megacerus eulophus en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1371/journal.pone.0053892
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#1.06.11
dc.relation.issn 1932-6203


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