The invasive green crab and Japanese shore crab: behavioral interactions with a native crab species, the blue crab

Macdonald, J. A.; Roudez, Ross; Glover, Terry; Weis, Judith S.

doi:10.1007/s10530-006-9085-6

Cited by 73 publications

(51 citation statements)

References 26 publications

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“…Wasson et al 2005, Eastwood et al 2007. A number of complex novel interactions could be established subsequent to invasion due to the arrangement of new native-exotic or exotic-exotic contact (Dudas et al 2005, Grosholz 2005, Matern & Brown 2005, MacDonald et al 2007, Pratt & Grason 2007. On the one hand, non-indigenous species are expected to lose some or all native co-evolved enemies.…”

Section: Introductionmentioning

confidence: 99%

Predator–prey interactions in a bioinvasion scenario: differential predation by native predators on two exotic rocky intertidal bivalves

López¹,

Coutinho²,

Ferreira³

et al. 2010

Mar. Ecol. Prog. Ser.

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The mechanisms determining the strength of interactions between non-indigenous and native species in the invaded environment are of great interest to both ecologists and managers. On a Brazilian rocky shore, we experimentally measured predation intensity and prey preference of native predators on 2 exotic bivalves, Perna perna (which has been present for centuries) and Isognomon bicolor (introduced ca. 20 yr ago). Overall, predation was more intense on P. perna than on I. bicolor. Furthermore, P. perna was preyed upon more intensively by benthic crawling predators (whelks and, possibly, crabs), while larger, more mobile predators (fish and birds) were less selective. In addition, the larger, more abundant whelk Stramonita haemastoma selectively preyed on P. perna (for which handling time was shorter), while another whelk (Trachypollia nodulosa) preferred I. bicolor, although handling time was longer. Different shell morphologies of the 2 exotic prey and resource partitioning between the whelks may explain S. haemastoma and T. nodulosa feeding preferences, respectively. The thicker valves of I. bicolor compared to those of P. perna reduced the drilling or chipping efficiency by whelks. Although these prey species belong to the same functional group, differences in their shell characteristics could entail different mechanical constraints to predators. Therefore, native predators in the study system may prefer P. perna over I. bicolor because they are still adapting their foraging skills to handle the more recent invader, I. bicolor. KEY WORDS: Exotic prey · Novel interactions · Predation intensity · Prey preference · Intertidal · Subtropical rocky shores · Brazil Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 403: [101][102][103][104][105][106][107][108][109][110][111][112] 2010 the structuring of benthic communities on rocky shores. Prey preference of these predators can be influenced by many factors such as prey size, energy content, handling time, availability and the past experience of the predator (Pyke et al. 1977, Hughes & Dunkin 1984, Fairweather 1988, Etter 1996.Multiple species have invaded many hard substrate habitats over time; therefore, native species have been exposed to different invaders for different periods of time (e.g. Wasson et al. 2005, Eastwood et al. 2007. A number of complex novel interactions could be established subsequent to invasion due to the arrangement of new native-exotic or exotic-exotic contact (Dudas et al. 2005, Grosholz 2005, Matern & Brown 2005, MacDonald et al. 2007, Pratt & Grason 2007. On the one hand, non-indigenous species are expected to lose some or all native co-evolved enemies. This enemyrelease hypothesis is one of many possible explanations for the success of invasive species in a new area (Colautti et al. 2004). On the other hand, non-indigenous species could find new enemies in invaded areas that could control their populations (Parker & Hay 2005, Parker et al. 2006.Invasive species can have important...

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Section: Introductionmentioning

confidence: 99%

Predator–prey interactions in a bioinvasion scenario: differential predation by native predators on two exotic rocky intertidal bivalves

López¹,

Coutinho²,

Ferreira³

et al. 2010

Mar. Ecol. Prog. Ser.

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“…Experiments showed that green crabs may defend their food against lobsters Homarus americanus of larger size ) and force Dungeness crabs Cancer magister out of their habitat (McDonald et al 2001). MacDonald et al (2007) further observed juvenile green crabs to be superior competitors to juvenile blue crabs Callinectes sapidus in food and agonistic laboratory challenges.…”

Section: Introductionmentioning

confidence: 92%

“…This may, however, not apply to all life stages. MacDonald et al (2007) showed that green crab juveniles are a potential threat to juvenile blue crabs, though adult blue crabs are known to limit the expansion of green crabs on the east coast of the United States (MacDonald et al 2007). …”

Section: Field Caging Experiments -Stomach Contentsmentioning

confidence: 99%

Predation behaviour of Cancer irroratus and Carcinus maenas during conspecific and heterospecific challenges

Bélair¹,

Miron

2009

Aquat. Biol.

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We investigated the predation behaviour of rock crab Cancer irroratus and green crab Carcinus maenas in laboratory experiments in autumn 2006 and spring 2007 during various conspecific and heterospecific challenges. The number of prey eaten by a focal crab during a given challenge was recorded for both crab species using competition treatments (solitary crab, 2 conspecifics or 2 heterospecifics) crossed with 2 different prey densities (4 or 30 mussels) and 3 different temperatures (5, 12 or 20°C). To validate laboratory results, complementary field experiments were carried out in aquaculture leases in Prince Edward Island, Canada, in 2007, during which crab stomach contents from identical competition treatments were studied and mussel socks were surveyed monthly for crab abundance. In the laboratory, predation rates of both crab species generally increased with temperature and mussel density, and were not affected by the presence of a heterospecific regardless of the season. During autumn 2006, the Temperature × Mussel density interaction influenced the predation rate of rock crab while only temperature affected the predation rate of green crab. During spring 2007, the predation rate of green crab varied again according to temperature whereas the predation rate of rock crab was affected by the Temperature × Mussel density × Competition interaction. In the field, blue mussels Mytilus edulis were the most abundant food item observed in stomach contents. The competition treatments did not affect the stomach contents. Both crab species displayed different abundance patterns and seemed to avoid each other on mussel socks. Overall, our results suggest that the 2 crab species can potentially coexist.

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“…Two species of grapsid crabs, the Asian shore crab, H. sanguineus in the northwestern Atlantic and a sibling species with several common names (yellow shore crab, hairy shore crab, mud-flat crab, Oregon shore crab), H. oregonensis, in the northeastern Pacific, have relatively recently invaded the areas occupied by C. maenas and are direct competitors [75,202,[232][233][234]. Under controlled experimentation H. sanguineus was overwhelmingly dominant over C. maenas whereas C. maenas dominated over H.…”

Section: Competitorsmentioning

confidence: 99%

PopulationDynamics of Green Crabs (Carcinus maenas) -- A Review

Young¹,

Elliott²

2018

Preprint

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Carcinus maenas (the "shore crab" or "European green crab") is a very proficient invader (considered to be one of the world's 100 worst invaders by the IUCN) due to its phenotypic plasticity, wide temperature and salinity tolerance, and an extensive omnivorous diet. Native to Atlantic Europe, it has established two well-studied nonindigenous populations in the northwestern Atlantic and northeastern Pacific and lessstudied populations in Australia, Argentina and South Africa. Green crabs are eurythermal and euryhaline as adults, but they are limited to temperate coastlines due to more restrictive temperature requirements for breeding and larval development. They cannot tolerate wave-swept open shores so are found in wave-protected sheltered bays, estuaries and harbors. C. maenas has been the subject of numerous papers, with over 1000 published in the past decade. This literature review provides an up-to-date account of the current published information on the population dynamics of this very important species, including habitat preferences, physical parameter tolerances, reproduction and larval development, sizes of crabs, densities of populations, sex ratios, ecosystem dynamics and ecological impacts in the various established global populations of green crabs.

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The invasive green crab and Japanese shore crab: behavioral interactions with a native crab species, the blue crab

Cited by 73 publications

References 26 publications

Predator–prey interactions in a bioinvasion scenario: differential predation by native predators on two exotic rocky intertidal bivalves

Predator–prey interactions in a bioinvasion scenario: differential predation by native predators on two exotic rocky intertidal bivalves

Predation behaviour of Cancer irroratus and Carcinus maenas during conspecific and heterospecific challenges

PopulationDynamics of Green Crabs (Carcinus maenas) -- A Review

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