Assessment of predation risk through conspecific alarm odors by spiny lobsters <subtitle>How much is too much?</subtitle>

Strong “alarm odors” emanating from lethally injured conspecifics may indicate an imminent risk of predation to spiny lobsters. In laboratory trials,1 strong conspecific alarm odors elicited avoidance in Panulirus argus, a highly gregarious species that displays collective defense behavior, but not...

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Main Author: Patricia Briones-Fourzán
Format: Article
Language:English
Published: Taylor & Francis Group 2009-07-01
Series:Communicative & Integrative Biology
Online Access:https://www.tandfonline.com/doi/10.4161/cib.2.4.8221
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author Patricia Briones-Fourzán
author_facet Patricia Briones-Fourzán
author_sort Patricia Briones-Fourzán
collection DOAJ
description Strong “alarm odors” emanating from lethally injured conspecifics may indicate an imminent risk of predation to spiny lobsters. In laboratory trials,1 strong conspecific alarm odors elicited avoidance in Panulirus argus, a highly gregarious species that displays collective defense behavior, but not in Panulirus guttatus, a species that tends to aggregate when reproductive activity is high (spring) but not when it is low (late summer) and does not display collective defensive behavior. To reduce predation risk, however, lobsters may automize limbs, thus sustaining non-lethal injuries. I tested the response of these lobsters to scents emanating from intact, lethally-injured, and non-lethally injured conspecifics. In P. argus, these scents elicited, respectively, attraction, avoidance, and a random response, suggesting that, in P. argus, avoidance of conspecific alarm odors depends on their strength. In contrast, P. guttatus lobsters responded at random to scents of lethally injured conspecifics and showed a similar response to scents of intact and non-lethally injured conspecifics in the spring (attraction) and in the summer (random), reflecting the more cryptic defensive behavior of this species. Therefore, both species use conspecific alarm odors for risk-assessment, but each responds to these cues in the most effective way to reduce its risk of predation.
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spelling doaj.art-a1ef62f746934e23a9f6a261f16500102023-09-15T13:02:40ZengTaylor & Francis GroupCommunicative & Integrative Biology1942-08892009-07-012430230410.4161/cib.2.4.8221Assessment of predation risk through conspecific alarm odors by spiny lobsters <subtitle>How much is too much?</subtitle>Patricia Briones-Fourzán0Unidad Académica Puerto Morelos; Instituto de Ciencias del Mar y Limnología; Universidad Nacional Autónoma de México; Puerto Morelos, MéxicoStrong “alarm odors” emanating from lethally injured conspecifics may indicate an imminent risk of predation to spiny lobsters. In laboratory trials,1 strong conspecific alarm odors elicited avoidance in Panulirus argus, a highly gregarious species that displays collective defense behavior, but not in Panulirus guttatus, a species that tends to aggregate when reproductive activity is high (spring) but not when it is low (late summer) and does not display collective defensive behavior. To reduce predation risk, however, lobsters may automize limbs, thus sustaining non-lethal injuries. I tested the response of these lobsters to scents emanating from intact, lethally-injured, and non-lethally injured conspecifics. In P. argus, these scents elicited, respectively, attraction, avoidance, and a random response, suggesting that, in P. argus, avoidance of conspecific alarm odors depends on their strength. In contrast, P. guttatus lobsters responded at random to scents of lethally injured conspecifics and showed a similar response to scents of intact and non-lethally injured conspecifics in the spring (attraction) and in the summer (random), reflecting the more cryptic defensive behavior of this species. Therefore, both species use conspecific alarm odors for risk-assessment, but each responds to these cues in the most effective way to reduce its risk of predation.https://www.tandfonline.com/doi/10.4161/cib.2.4.8221
spellingShingle Patricia Briones-Fourzán
Assessment of predation risk through conspecific alarm odors by spiny lobsters <subtitle>How much is too much?</subtitle>
Communicative & Integrative Biology
title Assessment of predation risk through conspecific alarm odors by spiny lobsters <subtitle>How much is too much?</subtitle>
title_full Assessment of predation risk through conspecific alarm odors by spiny lobsters <subtitle>How much is too much?</subtitle>
title_fullStr Assessment of predation risk through conspecific alarm odors by spiny lobsters <subtitle>How much is too much?</subtitle>
title_full_unstemmed Assessment of predation risk through conspecific alarm odors by spiny lobsters <subtitle>How much is too much?</subtitle>
title_short Assessment of predation risk through conspecific alarm odors by spiny lobsters <subtitle>How much is too much?</subtitle>
title_sort assessment of predation risk through conspecific alarm odors by spiny lobsters subtitle how much is too much subtitle
url https://www.tandfonline.com/doi/10.4161/cib.2.4.8221
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