Puff and bite: the relationship between the glucocorticoid stress response and anti-predator performance in checkered puffer (Sphoeroides testudineus)
Individual variation in the endocrine stress response has been linked to survival and performance in a variety of species. Here, we evaluate the relationship between the endocrine stress response and anti-predator behaviors in wild checkered puffers (Sphoeroides testudineus) captured at Eleuthera Island, Bahamas. The checkered puffer has a unique and easily measurable predator avoidance strategy, which is to inflate or 'puff' to deter potential predators. In this study, we measured baseline and stress-induced circulating glucocorticoid levels, as well as bite force, a performance measure that is relevant to both feeding and predator defence, and 'puff' performance. We found that puff performance and bite force were consistent within individuals, but generally decreased following a standardized stressor. Larger puffers were able to generate a higher bite force, and larger puffers were able to maintain a more robust puff performance following a standardized stressor relative to smaller puffers. In terms of the relationship between the glucocorticoid stress response and performance metrics, we found no relationship between post-stress glucocorticoid levels and either puff performance or bite force. However, we did find that baseline glucocorticoid levels predicted the ability of a puffer to maintain a robust puff response following a repeated stressor, and this relationship was more pronounced in larger individuals. Our work provides a novel example of how baseline glucocorticoids can predict a fitness-related anti-predator behavior..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2015 |
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| Erschienen: |
2015 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:214 |
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| Enthalten in: |
General and comparative endocrinology - 214(2015), Seite 1-8 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Cull, Felicia [VerfasserIn] |
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| Links: |
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| Themen: |
Hydrocortisone - metabolism |
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| doi: |
10.1016/j.ygcen.2015.02.022 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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OLC1963821521 |
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| 245 | 1 | 0 | |a Puff and bite: the relationship between the glucocorticoid stress response and anti-predator performance in checkered puffer (Sphoeroides testudineus) |
| 264 | 1 | |c 2015 | |
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| 520 | |a Individual variation in the endocrine stress response has been linked to survival and performance in a variety of species. Here, we evaluate the relationship between the endocrine stress response and anti-predator behaviors in wild checkered puffers (Sphoeroides testudineus) captured at Eleuthera Island, Bahamas. The checkered puffer has a unique and easily measurable predator avoidance strategy, which is to inflate or 'puff' to deter potential predators. In this study, we measured baseline and stress-induced circulating glucocorticoid levels, as well as bite force, a performance measure that is relevant to both feeding and predator defence, and 'puff' performance. We found that puff performance and bite force were consistent within individuals, but generally decreased following a standardized stressor. Larger puffers were able to generate a higher bite force, and larger puffers were able to maintain a more robust puff performance following a standardized stressor relative to smaller puffers. In terms of the relationship between the glucocorticoid stress response and performance metrics, we found no relationship between post-stress glucocorticoid levels and either puff performance or bite force. However, we did find that baseline glucocorticoid levels predicted the ability of a puffer to maintain a robust puff response following a repeated stressor, and this relationship was more pronounced in larger individuals. Our work provides a novel example of how baseline glucocorticoids can predict a fitness-related anti-predator behavior. | ||
| 540 | |a Nutzungsrecht: Copyright © 2015 Elsevier Inc. All rights reserved. | ||
| 650 | 4 | |a Hydrocortisone - metabolism | |
| 650 | 4 | |a Tetraodontiformes - physiology | |
| 650 | 4 | |a Stress, Physiological - physiology | |
| 650 | 4 | |a Predatory Behavior - physiology | |
| 700 | 1 | |a O'Connor, Constance M |4 oth | |
| 700 | 1 | |a Suski, Cory D |4 oth | |
| 700 | 1 | |a Shultz, Aaron D |4 oth | |
| 700 | 1 | |a Danylchuk, Andy J |4 oth | |
| 700 | 1 | |a Cooke, Steven J |4 oth | |
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| 773 | 1 | 8 | |g volume:214 |g year:2015 |g pages:1-8 |
| 856 | 4 | 1 | |u http://dx.doi.org/10.1016/j.ygcen.2015.02.022 |3 Volltext |
| 856 | 4 | 2 | |u http://www.ncbi.nlm.nih.gov/pubmed/25745817 |
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