Relative benefit of the invasive Echinogammarus berilloni (Catta, 1878) over native gammarids under fish predation (Gasterosteus aculeatus Linnaeus, 1758)

Schmidt‐Drewello, Alexander; Riss, H. Wolfgang; Scharsack, Jörn P.; Meyer, Elisabeth I.

doi:10.1007/s10452-015-9555-y

Cited by 9 publications

(16 citation statements)

References 52 publications

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“…The results presented here also add yet another piece of evidence questioning the invasiveness of Echinogammarus berilloni in Central Europe. Despite few studies indicating its advantage over native gammarid species with confirmed cases of their displacement, E. berilloni does not seem to exhibit all the traits assigned to an invasive gammarid (Grabowski et al, 2007;Schmidt-Drewello et al, 2016). The results presented here indicate that only Eb2 lineage has managed to disperse east of France and given what is known for the moment about its distribution, it rejects the concept of a recent dispersal directly from Iberian Peninsula.…”

Section: Discussioncontrasting

confidence: 71%

“…In the years following, the species was reported from northeast Spain, southwest France and then subsequently from Belgium, Netherlands up to north-western Germany (Pinkster, 1973). Even though E. berilloni shows significant ecological trait advantages over native gammarids (Piscart et al, 2011b;Schmidt-Drewello et al, 2016), these advantages are not as pronounced as in other amphipod invaders present in European fresh waters (Kley and Maier, 2006).…”

Section: Introductionmentioning

confidence: 99%

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Revisiting the past − novel insight into intraspecific molecular diversity and phylogeny of widespread Echinogammarus berilloni

Hupało

2020

Knowl. Manag. Aquat. Ecosyst.

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Echinogammarus berilloni (Catta, 1878) is a widespread and euryecious species, inhabiting large parts of Southwestern Europe. Additionally, it is recognized as one of the non-native and invasive species, increasing its range to Central Europe. Even though it is widely used as a model organism in a variety of ecological and ecotoxicological studies, its intraspecific molecular diversity has been overlooked. In this study, the publicly available genetic data reveal high level of intraspecific diversity, supporting presence of up to four phylogenetically distinct genetic lineages. Furthermore, the results indicate that the taxon is not monophyletic. The importance of considering its intraspecific diversity is discussed, highlighting the potential implications for future studies as well as the need for further detailed taxonomic studies.

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Section: Discussioncontrasting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Revisiting the past − novel insight into intraspecific molecular diversity and phylogeny of widespread Echinogammarus berilloni

Hupało

2020

Knowl. Manag. Aquat. Ecosyst.

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“…Generally our results indicate that the presence of competing species can reduce predation risk for invasive gammarids due to the dilution effect, common shelter utilization and formation of interspecific aggregations by them. However, a different scenario was presented by Beggel, Brandner, Cerwenka, and Geist () and Schmidt‐Drewello, Riss, Scharsack, and Meyer () who experimentally verified the impact of non‐native predators on the survival of native and alien gammarids. They showed that in the presence of invasive gammarids, the survival of native species significantly decreased, probably due to the interspecific competition for shelters, resulting in the displacement of the weaker native gammarids.…”

Section: Discussionmentioning

confidence: 99%

An enemy of your enemy is your friend: Impact of predators on aggregation behavior of gammarids

et al. 2017

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Predation pressure may affect many aspects of prey behavior, including forming groups and changes in social interactions. We studied the aggregation behavior of competing gammarids Dikerogammarus villosus and Pontogammarus robustoides (Amphipoda, Crustacea) to check whether they modify their preferences for conspecifics or heterospecifics in response to predator (the racer goby Babka gymnotrachelus) kairomones in the presence or absence of stone shelters (alternative protection source). Both species exhibited preferences toward shelters occupied by conspecifics over empty shelters and conspecifics apart from shelters, suggesting that their aggregation depends not only on habitat heterogeneity, but also on their social interactions. Moreover, gammarids in the presence of shelters (safer conditions) preferred conspecifics over heterospecifics, but predator kairomones made them form aggregations irrespective of species. In the predator presence, P. robustoides increased its aggregation level only in the sheltered conditions, whereas D. villosus exhibited this response only in the absence of shelters, suggesting that this behavior can protect it against predators. Therefore, we tested the antipredator effectiveness of D. villosus aggregations by exposing them to fish predation. Gobies foraged most effectively on immobile single gammarids compared to moving and aggregated individuals. Fish also avoided aggregated prey, confirming the protective character of aggregations. We have demonstrated that the predator presence increases aggregation level of prey gammarids and affects their social behavior by reducing antagonistic interactions and avoidance between competing species. This is likely to affect their distribution and functioning in the wild, where predator pressure is a standard situation.

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“…One of the factors most affecting animal behaviour is the presence of predators (Lima & Dill, 1990;Ferrari et al, 2009). Common defensive reactions of animals are active avoidance (Lima & Dill, 1990;Wisenden & Millard, 2001;Jermacz et al, 2015) and/ or taking an appropriate shelter (Schmidt-Drewello et al, 2016). However, sessile organisms developed more sophisticated and less conspicuous responses.…”

Section: Introductionmentioning

confidence: 99%

What scares a mussel? Changes in valve movement pattern as an immediate response of a byssate bivalve to biotic factors

Dzierżyńska‐Białończyk

Jermacz

Zielska

et al. 2019

Hydrobiologia

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Responsiveness to biotic factors is crucial for the survival of sessile aquatic animals. They cannot escape from danger, but developed a number of defences against predation, usually delayed in time. We checked the initial defence of the freshwater byssate zebra mussel, Dreissena polymorpha, associated with valve gaping. We tested the effect of chemical signals: fish predator scent (the roach Rutilus rutilus), conspecific alarm cue and a mixture of both, as well as a mechanical stimulus: the presence of an amphipod (Dikerogammarus villosus) mechanically irritating mussels. The alarm cues and amphipod presence made mussels spend more time with closed/narrowly open valves, which can be related to decreasing detection probability by reduced infochemical excretion and/or protecting soft tissues in the presence of an imminent threat. In contrast, reactions to the predator scent alone were much weaker. Moreover, the fish scent mixed with alarm substance induced weaker responses than the alarm substance alone. Thus, the fish infochemical might mask the presence of the alarm cue components, potentially benefiting the predator. A variety of defences exhibited by mussels demonstrates the importance of the predation cue type (direct/indirect, chemical/mechanical, originating from conspecifics/ predators/mixed) for the behaviour of sessile animals.

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Relative benefit of the invasive Echinogammarus berilloni (Catta, 1878) over native gammarids under fish predation (Gasterosteus aculeatus Linnaeus, 1758)

Cited by 9 publications

References 52 publications

Revisiting the past − novel insight into intraspecific molecular diversity and phylogeny of widespread Echinogammarus berilloni

Revisiting the past − novel insight into intraspecific molecular diversity and phylogeny of widespread Echinogammarus berilloni

An enemy of your enemy is your friend: Impact of predators on aggregation behavior of gammarids

What scares a mussel? Changes in valve movement pattern as an immediate response of a byssate bivalve to biotic factors

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