Influence of predator identity on the strength of predator avoidance responses in lobsters

Wilkinson, Erin B.; Grabowski, Jonathan H.; Sherwood, Graham D.; Yund, Philip O.

doi:10.1016/j.jembe.2015.01.002

Cited by 10 publications

(16 citation statements)

References 51 publications

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“…The first video segment was selected between 2000-2300 hrs and the second was selected between 0200-0500 hrs. Video segments were selected from the evening hours because lobsters are nocturnal (Wilkinson et al 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Despite the relatively brief time in which these populations have geographically overlapped, lobsters from midcoast Maine (Mid) recognized and responded to sea bass as they would to native fish predators, such as sculpin and Atlantic cod (Wahle 1992, McMahan et al 2013, Wilkinson et al 2015. Furthermore, Downeast (DE) lobsters consumed significantly fewer mussels in the presence versus absence of sea bass, indicating that they too were able to recognize and respond to a novel predator.…”

Section: Discussionmentioning

confidence: 99%

“…If the cues are different, then the effectiveness of the response will depend on the ability of the prey to recognize general cues, such as conspecific alarm cues, to gauge risk. Prey that use specific cues may ignore a novel predator or exhibit ineffective defenses, and consequently suffer consumptive predation (Sih et al 2010). Wilkinson et al (2015 found that lobsters do not respond behaviorally to all fish predators, but rather avoid specific fish predators that they recognize to be a high-risk threat.…”

Section: Discussionmentioning

confidence: 99%

“…The degree to which the northward expansion of black sea bass is affecting lobster populations is unknown; however, fish predators can reduce lobster movement and foraging behavior and may potentially influence lobster population dynamics (Wahle 1992, Spanier et al 1998, McMahan et al 2013, Wilkinson et al 2015. Therefore, there may be both ecological and socioeconomic impacts of the recent increase of black sea bass in the GOM.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, Selden et al (2016) found that a recent contraction in the southern range limit of lobsters was correlated with the northern expansion of sea bass. Because predatory fish induce strong NCEs in juvenile lobster populations, such as increased shelter usage and reduced foraging (Wahle 1992, Spanier et al 1998, McMahan et al 2013, Wilkinson et al 2015, the expansion of this aggressive fish predator into the GOM could have substantial ecological and socioeconomic impacts.…”

Section: Introductionmentioning

confidence: 99%

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Ecological and socioeconomic implications of a northern range expansion of black sea bass, Centropristis striata

McMahan¹

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ecological and socioeconomic implications of a northern range expansion of black sea bass, Centropristis striata

McMahan¹

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Feeding, Growth, and Trophic Ecology

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Sherwood

2018

Atlantic Cod

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Nonconsumptive effects of a range‐expanding predator on juvenile lobster (Homarus americanus) population dynamics

McMahan

Grabowski

2019

Ecosphere

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Distribution shifts poleward are a widespread response to climate change and can result in altered community composition and interactions among species that previously were geographically isolated. The novel communities and species interactions that may arise during range shifts provide an opportunity to study fundamental ecological processes, while also addressing potential conservation issues. Black sea bass (Centropristis striata) historically ranged from the Gulf of Mexico to Cape Cod, but recently have expanded north into the Gulf of Maine. Very little is known about the impact of this range expansion on benthic community structure throughout the coastal waters of the Gulf of Maine. To investigate the effects of sea bass on the behavior of juvenile American lobsters (Homarus americanus), we manipulated the presence of sea bass olfactory cues and quantified shelter use and foraging behavior of lobsters from three regions in the Gulf of Maine with different potential contact histories with sea bass. Sea bass presence increased shelter usage and reduced foraging in lobsters, but contact history influenced the strength of these behavioral responses. Lobsters with no previous contact with sea bass did not significantly increase shelter usage or decrease movement in their presence but did reduce their foraging rate on mussels. This observed reduction in consumption indicates that naïve lobsters recognize novel predators, but the ineffective anti‐predator responses exhibited support the naive prey hypothesis. Meanwhile, lobsters with the longest potential contact history with sea bass significantly increased shelter usage when sea bass were present; however, they exhibited limited movement and foraging behavior in both the absence and presence of sea bass. Finally, lobsters with a short potential contact history with sea bass exhibited increased shelter usage, reduced movement, and reduced mussel consumption in the presence of sea bass, revealing that juvenile lobsters quickly adapt anti‐predator defenses to avoid this novel threat. Overall, these results suggest that prey contact history with novel predators mediates the strength of their nonconsumptive effects, and consequently can influence geographic patterns in predator–prey dynamics.

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Influence of predator identity on the strength of predator avoidance responses in lobsters

Cited by 10 publications

References 51 publications

Ecological and socioeconomic implications of a northern range expansion of black sea bass, Centropristis striata

Ecological and socioeconomic implications of a northern range expansion of black sea bass, Centropristis striata

Feeding, Growth, and Trophic Ecology

Nonconsumptive effects of a range‐expanding predator on juvenile lobster (Homarus americanus) population dynamics

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