Journal ArticleDOI
Eastern Oysters Crassostrea virginica Produce Plastic Morphological Defenses in Response to Crab Predators Despite Resource Limitation
Avery E. Scherer,Delbert L. Smee +1 more
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TLDR
It is found that oysters continued to produce defended shells in response to predators when resources were limited, even though they grew smaller, lighter shells when deprived of food in control conditions, suggesting that predation is an important pressure in this system.Abstract:
Many prey react to predation risk by altering their phenotype to reduce their chances of being consumed but incur reductions in growth and fecundity when reacting to predators. To determine...read more
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Two-tiered defense strategy may compensate for predator avoidance costs of an ecosystem engineer
Avery E. Scherer,Avery E. Scherer,Christopher E. Bird,Melissa R. McCutcheon,Xinping Hu,Delbert L. Smee +5 more
TL;DR: Oysters demonstrate a two-tier mechanism allowing them to cheaply escape predation at lower risk but to build stronger shells at greater expense when warranted, suggesting oysters initially react to predators by adding inexpensive calcium carbonate to their shells to quickly outgrow risk.
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Wave energy alters biodiversity by shaping intraspecific traits of a habitat‐forming species
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Tidal level affects the prevalence and impacts of pests and parasites on oysters (Crassostrea virginica) on intertidal reefs in Georgia, USA
TL;DR: An observed negative relationship between oysterdensity and sponges suggests that higher sponge prevalence may drive low oyster density in the lower intertidal zone, which is important for management and restoration in the southeastern USA.
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Nursery Exposure of Oyster Spat to Different Predators Strengthens Oyster Shells
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Coexistence of the native mussel, Mytilus edulis, and the invasive Pacific oyster, Crassostrea (Magallana) gigas, does not affect their growth or mortality, but reduces condition of both species
Patrick W. S. Joyce,Patrick W. S. Joyce,Patrick W. S. Joyce,David Smyth,David Smyth,Jaimie T. A. Dick,Louise Kregting +6 more
TL;DR: It is shown that coexistence between the two species may occur but could be detrimental for both species, and a preliminary viewpoint that water motion can mediate competitive interactions between these species is provided.
References
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Behavioral decisions made under the risk of predation: a review and prospectus
Steven L. Lima,Lawrence M. Dill +1 more
TL;DR: This work has shown that predation is a major selective force in the evolution of several morphological and behavioral characteristics of animals and the importance of predation during evolutionary time has been underestimated.
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Blooms like it hot
Hans W. Paerl,Jef Huisman +1 more
TL;DR: A link exists between global warming and the worldwide proliferation of harmful cyanobacterial blooms as discussed by the authors, and it has been shown that global warming can be linked with the proliferation of these blooms.
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The ecology and evolution of inducible defenses
TL;DR: Inducible defenses are responses activated through a previous encounter with a consumer or competitor that confer some degree of resistance to subsequent attacks as discussed by the authors, which can affect the probability of individual survival and growth.
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Temporal Variation in Danger Drives Antipredator Behavior: The Predation Risk Allocation Hypothesis
TL;DR: This analysis suggests that an animal should exhibit its greatest antipredator behavior in high‐risk situations that are brief and infrequent, and suggests that a common experimental protocol is likely to overestimate the intensity of antipredators behavior expected under field situations or chronic exposure to high risk.
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Chemical alarm signalling in aquatic predator-prey systems: A review and prospectus
TL;DR: Benefits to alarm signal receivers extend beyond the immediate behavioural response of nearby conspecifics over a few minutes, and are important in mediating the learning of unknown predation cues.