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Seasonality Directs Contrasting Food Collection Behavior and Nutrient Regulation Strategies in Ants
Long-lived animals, including social insects, often display seasonal shifts in foraging behavior. Foraging is ultimately a nutrient consumption exercise, but the effect of seasonality per se on changes in foraging behavior, particularly as it relates to nutrient regulation, is poorly understood. Her...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3180453/ https://www.ncbi.nlm.nih.gov/pubmed/21966522 http://dx.doi.org/10.1371/journal.pone.0025407 |
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author | Cook, Steven C. Eubanks, Micky D. Gold, Roger E. Behmer, Spencer T. |
author_facet | Cook, Steven C. Eubanks, Micky D. Gold, Roger E. Behmer, Spencer T. |
author_sort | Cook, Steven C. |
collection | PubMed |
description | Long-lived animals, including social insects, often display seasonal shifts in foraging behavior. Foraging is ultimately a nutrient consumption exercise, but the effect of seasonality per se on changes in foraging behavior, particularly as it relates to nutrient regulation, is poorly understood. Here, we show that field-collected fire ant colonies, returned to the laboratory and maintained under identical photoperiod, temperature, and humidity regimes, and presented with experimental foods that had different protein (p) to carbohydrate (c) ratios, practice summer- and fall-specific foraging behaviors with respect to protein-carbohydrate regulation. Summer colonies increased the amount of food collected as the p:c ratio of their food became increasingly imbalanced, but fall colonies collected similar amounts of food regardless of the p:c ratio of their food. Choice experiments revealed that feeding was non-random, and that both fall and summer ants preferred carbohydrate-biased food. However, ants rarely ate all the food they collected, and their cached or discarded food always contained little carbohydrate relative to protein. From a nutrient regulation strategy, ants consumed most of the carbohydrate they collected, but regulated protein consumption to a similar level, regardless of season. We suggest that varied seasonal food collection behaviors and nutrient regulation strategies may be an adaptation that allows long-lived animals to meet current and future nutrient demands when nutrient-rich foods are abundant (e.g. spring and summer), and to conserve energy and be metabolically more efficient when nutritionally balanced foods are less abundant. |
format | Online Article Text |
id | pubmed-3180453 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-31804532011-09-30 Seasonality Directs Contrasting Food Collection Behavior and Nutrient Regulation Strategies in Ants Cook, Steven C. Eubanks, Micky D. Gold, Roger E. Behmer, Spencer T. PLoS One Research Article Long-lived animals, including social insects, often display seasonal shifts in foraging behavior. Foraging is ultimately a nutrient consumption exercise, but the effect of seasonality per se on changes in foraging behavior, particularly as it relates to nutrient regulation, is poorly understood. Here, we show that field-collected fire ant colonies, returned to the laboratory and maintained under identical photoperiod, temperature, and humidity regimes, and presented with experimental foods that had different protein (p) to carbohydrate (c) ratios, practice summer- and fall-specific foraging behaviors with respect to protein-carbohydrate regulation. Summer colonies increased the amount of food collected as the p:c ratio of their food became increasingly imbalanced, but fall colonies collected similar amounts of food regardless of the p:c ratio of their food. Choice experiments revealed that feeding was non-random, and that both fall and summer ants preferred carbohydrate-biased food. However, ants rarely ate all the food they collected, and their cached or discarded food always contained little carbohydrate relative to protein. From a nutrient regulation strategy, ants consumed most of the carbohydrate they collected, but regulated protein consumption to a similar level, regardless of season. We suggest that varied seasonal food collection behaviors and nutrient regulation strategies may be an adaptation that allows long-lived animals to meet current and future nutrient demands when nutrient-rich foods are abundant (e.g. spring and summer), and to conserve energy and be metabolically more efficient when nutritionally balanced foods are less abundant. Public Library of Science 2011-09-26 /pmc/articles/PMC3180453/ /pubmed/21966522 http://dx.doi.org/10.1371/journal.pone.0025407 Text en Cook et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Cook, Steven C. Eubanks, Micky D. Gold, Roger E. Behmer, Spencer T. Seasonality Directs Contrasting Food Collection Behavior and Nutrient Regulation Strategies in Ants |
title | Seasonality Directs Contrasting Food Collection Behavior and Nutrient Regulation Strategies in Ants |
title_full | Seasonality Directs Contrasting Food Collection Behavior and Nutrient Regulation Strategies in Ants |
title_fullStr | Seasonality Directs Contrasting Food Collection Behavior and Nutrient Regulation Strategies in Ants |
title_full_unstemmed | Seasonality Directs Contrasting Food Collection Behavior and Nutrient Regulation Strategies in Ants |
title_short | Seasonality Directs Contrasting Food Collection Behavior and Nutrient Regulation Strategies in Ants |
title_sort | seasonality directs contrasting food collection behavior and nutrient regulation strategies in ants |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3180453/ https://www.ncbi.nlm.nih.gov/pubmed/21966522 http://dx.doi.org/10.1371/journal.pone.0025407 |
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