Does predator-driven, biotic resistance limit the northward spread of the non-native green porcelain crab, Petrolisthes armatus?

Kinney, Kaitlin; Pintor, Lauren M.; Byers, James E.

doi:10.1007/s10530-018-1821-1

Cited by 9 publications

(4 citation statements)

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“…This makes it imperative to assess whether INTRODUCTION Non-native species introductions and subsequent establishment continues to threaten global biodiversity (Seebens et al, 2017;Meyerson et al, 2019). The likelihood of a particular species successfully establishing and persisting in a novel environment is influenced by both abiotic and biotic factors (Byers, 2002;Pearson et al, 2018;Kinney et al, 2019). For example, evidence toward the environmental matching hypothesis suggests that when the climate of the incumbent ecosystem matches the climate of the native range, the invader has a higher potential to both persist and perform better than when the climate does not (Capinha et al, 2013;Iacarella et al, 2015).…”

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confidence: 99%

In a Pinch: Mechanisms Behind Potential Biotic Resistance Toward Two Invasive Crayfish by Native African Freshwater Crabs

et al. 2020

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confidence: 99%

In a Pinch: Mechanisms Behind Potential Biotic Resistance Toward Two Invasive Crayfish by Native African Freshwater Crabs

et al. 2020

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“…The relative abundance of preferred prey has also been shown to play a role in a predator’s consumption of an invasive prey (Liu et al. 2018; Kinney et al 2018). But more often, there is increasing evidence that diet diversification and intraspecific variation in traits is associated with morphological variation within a population (Kristjansson and Leblanc 2018; Marklund et al.…”

Section: Discussionmentioning

confidence: 99%

Sex, size, and prey caloric value affect diet specialization and consumption of an invasive prey by a native predator

2018

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Escaping the control of natural enemies is thought to heavily influence the establishment success and impact of non-native species. Here, we examined how the profitability of alternative prey in combination with the presence of a competitor and predator aggressive behavior explain individual differences in diet specialization and the consumption of the invasive green porcelain crab Petrolisthes armatus by the native mud crab predator Panopeus herbstii. Results from bomb calorimetry estimates show that invasive P. armatus has high caloric value relative to alternative native prey. Laboratory assays indicated that specialization and consumption of invasive P. armatus was mostly exhibited by large, female P. herbstii, but the presence of a competitor and predator aggressiveness did not influence diet and the consumption of P. armatus. Thus, intrinsic factors (e.g., sex and body size) seem to explain consumption of P. armatus and dietary specialization in P. herbstii, more generally. Although there are still many predator individuals that do not consume P. armatus, the proportion of individuals that have begun to specialize on P. armatus suggests that for some, it has become more profitable relative to alternative native prey. Given the high caloric value of P. armatus, we suggest that it is likely that differences in the cost of its consumption, including attack, capture, and handling times relative to alternative prey, determine its net profitability to individual predators.

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“…armatus has been established at this site since 1994 and previous work has shown that Pa. herbstii from this site readily consume Pe. armatus (Hollebone and Hay 2008, Pintor and Byers 2015a, Kinney et al 2019). We hand-collected individual Pa. herbstii from oyster reefs and housed them in ow-through seawater tanks and fed them frozen shrimp ad libitum.…”

Section: Methodsmentioning

confidence: 99%

“…Proportionally, Pe. armatus can compose on average anywhere from 35-42% of the most common prey items of Pa. herbstii within invaded oyster reef communities in Georgia (Kinney et al 2019) and has a caloric value that is similar to many native prey items on the reef (Hostert et al 2019). Pa. herbstii is a generalist predator that commonly consumes native crabs, mussels, and oysters, as well as non-native Pe.…”

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confidence: 99%

Density-dependent predation and predator preference for native prey may facilitate an invasive crab’s escape from natural enemies

et al. 2023

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Native predators can confer biotic resistance through consumption of invasive prey. However, early in the invasion process, native predators may initially ignore an invader when it is rare and only increase consumption once it becomes abundant. Furthermore, the willingness of native predators to consume novel invasive prey may be in uenced by the similarity of the invader to other native prey species that are favored or familiar. Here we examined whether a native predator (the common mudcrab, Panopeus herbstii) consumes the invasive lter-feeding crab, Petrolisthes armatus as a function of Pe. armatus abundance relative to native prey and the similarity of Pe. armatus to native prey. Using choice experiments, we quanti ed consumption of invasive Pe. armatus when its abundance was either rare, equal, or more abundant than native prey that were either taxonomically similar (crab, Eurypanoepus depressus) or dissimilar (mussel, Geukensia demissa) to the invader. We found that the absolute consumption of invasive Pe. armatus increased as its relative availability increased, but only in treatments where the alternative prey was a native crab. This suggests that prior experience of the native predator with a similar prey may prime the predator to consume more invasive Pe. armatus. A hierarchical Bayesian analysis determined that both native prey species were preferentially consumed by the native predator Pa. herbstii even when native prey were rare or equal in abundance to invasive Pe. armatus. These results suggest that density-dependent predation plus a persistent preference for native prey by native Pa. herbstii predators may help explain how Pe. armatus escapes its natural enemies.

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Does predator-driven, biotic resistance limit the northward spread of the non-native green porcelain crab, Petrolisthes armatus?

Cited by 9 publications

References 65 publications

In a Pinch: Mechanisms Behind Potential Biotic Resistance Toward Two Invasive Crayfish by Native African Freshwater Crabs

In a Pinch: Mechanisms Behind Potential Biotic Resistance Toward Two Invasive Crayfish by Native African Freshwater Crabs

Sex, size, and prey caloric value affect diet specialization and consumption of an invasive prey by a native predator

Density-dependent predation and predator preference for native prey may facilitate an invasive crab’s escape from natural enemies

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