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Interactions among morphotype, nutrition, and temperature impact fitness of an invasive fly

Invasive animals depend on finding a balanced nutritional intake to colonize, survive, and reproduce in new environments. This can be especially challenging during situations of fluctuating cold temperatures and food scarcity, but phenotypic plasticity may offer an adaptive advantage during these pe...

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Autores principales: Rendon, Dalila, Walton, Vaughn, Tait, Gabriella, Buser, Jessica, Lemos Souza, Ivana, Wallingford, Anna, Loeb, Greg, Lee, Jana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6493778/
https://www.ncbi.nlm.nih.gov/pubmed/31061698
http://dx.doi.org/10.1002/ece3.4928
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author Rendon, Dalila
Walton, Vaughn
Tait, Gabriella
Buser, Jessica
Lemos Souza, Ivana
Wallingford, Anna
Loeb, Greg
Lee, Jana
author_facet Rendon, Dalila
Walton, Vaughn
Tait, Gabriella
Buser, Jessica
Lemos Souza, Ivana
Wallingford, Anna
Loeb, Greg
Lee, Jana
author_sort Rendon, Dalila
collection PubMed
description Invasive animals depend on finding a balanced nutritional intake to colonize, survive, and reproduce in new environments. This can be especially challenging during situations of fluctuating cold temperatures and food scarcity, but phenotypic plasticity may offer an adaptive advantage during these periods. We examined how lifespan, fecundity, pre‐oviposition periods, and body nutrient contents were affected by dietary protein and carbohydrate (P:C) ratios at variable low temperatures in two morphs (winter morphs WM and summer morphs SM) of an invasive fly, Drosophila suzukii. The experimental conditions simulated early spring after overwintering and autumn, crucial periods for survival. At lower temperatures, post‐overwintering WM lived longer on carbohydrate‐only diets and had higher fecundity on low‐protein diets, but there was no difference in lifespan or fecundity among diets for SM. As temperatures increased, low‐protein diets resulted in higher fecundity without compromising lifespan, while high‐protein diets reduced lifespan and fecundity for both WM and SM. Both SM and WM receiving high‐protein diets had lower sugar, lipid, and glycogen (but similar protein) body contents compared to flies receiving low‐protein and carbohydrate‐only diets. This suggests that flies spend energy excreting excess dietary protein, thereby affecting lifespan and fecundity. Despite having to recover from nutrient depletion after an overwintering period, WM exhibited longer lifespan and higher fecundity than SM in favorable diets and temperatures. WM exposed to favorable low‐protein diet had higher body sugar, lipid, and protein body contents than SM, which is possibly linked to better performance. Although protein is essential for oogenesis, WM and SM flies receiving low‐protein diets did not have shorter pre‐oviposition periods compared to flies on carbohydrate‐only diets. Finding adequate carbohydrate sources to compensate protein intake is essential for the successful persistence of D. suzukii WM and SM populations during suboptimal temperatures.
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spelling pubmed-64937782019-05-06 Interactions among morphotype, nutrition, and temperature impact fitness of an invasive fly Rendon, Dalila Walton, Vaughn Tait, Gabriella Buser, Jessica Lemos Souza, Ivana Wallingford, Anna Loeb, Greg Lee, Jana Ecol Evol Original Research Invasive animals depend on finding a balanced nutritional intake to colonize, survive, and reproduce in new environments. This can be especially challenging during situations of fluctuating cold temperatures and food scarcity, but phenotypic plasticity may offer an adaptive advantage during these periods. We examined how lifespan, fecundity, pre‐oviposition periods, and body nutrient contents were affected by dietary protein and carbohydrate (P:C) ratios at variable low temperatures in two morphs (winter morphs WM and summer morphs SM) of an invasive fly, Drosophila suzukii. The experimental conditions simulated early spring after overwintering and autumn, crucial periods for survival. At lower temperatures, post‐overwintering WM lived longer on carbohydrate‐only diets and had higher fecundity on low‐protein diets, but there was no difference in lifespan or fecundity among diets for SM. As temperatures increased, low‐protein diets resulted in higher fecundity without compromising lifespan, while high‐protein diets reduced lifespan and fecundity for both WM and SM. Both SM and WM receiving high‐protein diets had lower sugar, lipid, and glycogen (but similar protein) body contents compared to flies receiving low‐protein and carbohydrate‐only diets. This suggests that flies spend energy excreting excess dietary protein, thereby affecting lifespan and fecundity. Despite having to recover from nutrient depletion after an overwintering period, WM exhibited longer lifespan and higher fecundity than SM in favorable diets and temperatures. WM exposed to favorable low‐protein diet had higher body sugar, lipid, and protein body contents than SM, which is possibly linked to better performance. Although protein is essential for oogenesis, WM and SM flies receiving low‐protein diets did not have shorter pre‐oviposition periods compared to flies on carbohydrate‐only diets. Finding adequate carbohydrate sources to compensate protein intake is essential for the successful persistence of D. suzukii WM and SM populations during suboptimal temperatures. John Wiley and Sons Inc. 2019-02-03 /pmc/articles/PMC6493778/ /pubmed/31061698 http://dx.doi.org/10.1002/ece3.4928 Text en © 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Rendon, Dalila
Walton, Vaughn
Tait, Gabriella
Buser, Jessica
Lemos Souza, Ivana
Wallingford, Anna
Loeb, Greg
Lee, Jana
Interactions among morphotype, nutrition, and temperature impact fitness of an invasive fly
title Interactions among morphotype, nutrition, and temperature impact fitness of an invasive fly
title_full Interactions among morphotype, nutrition, and temperature impact fitness of an invasive fly
title_fullStr Interactions among morphotype, nutrition, and temperature impact fitness of an invasive fly
title_full_unstemmed Interactions among morphotype, nutrition, and temperature impact fitness of an invasive fly
title_short Interactions among morphotype, nutrition, and temperature impact fitness of an invasive fly
title_sort interactions among morphotype, nutrition, and temperature impact fitness of an invasive fly
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6493778/
https://www.ncbi.nlm.nih.gov/pubmed/31061698
http://dx.doi.org/10.1002/ece3.4928
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