Field and laboratory experiments on interference between Hydrobia totteni and llyanassa obsoleta (Gastropoda) and its possible relation to seasonal shifts in vertical mudflat zonation

Levinton, Jeffrey S.; Stewart, Sarah E.; DeWitt, Theodore H.

doi:10.3354/meps022053

Cited by 33 publications

(20 citation statements)

References 12 publications

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“…The snail effect was not apparent on Day 45 because a large storm on Day 36 had allowed snails access to the no-snail cages. Other studies have demonstrated that the disturbance by I. obsoleta can lead to large changes in the abundance of Hydrobia totteni (Levinton et al 1985) and Microdeutopus gryllotalpa (DeWitt & Levinton 1985).…”

Section: -37mentioning

confidence: 97%

“…This snail feeds on surface sediments and carrion (Feller 1984) and is common in intertidal flats and shallow subtidal areas on both coasts of the continental USA. It has been shown to reduce the abundance of the nematode Pseudotheristid nematodes (Nichols & Robertson 1979), and bivalves and other organisms (Hunt et al 1987), and induce migration of the amphipod Microdeutopus gryllotalpa (DeWitt & Levinton 1985) and the snail Hydrobia totteni (Levinton et al 1985). In the presence of I, obsoleta, the larger species such as M. gryllotalpa and H. totteni emigrate actively, but the mechanism by which I. obsoleta excludes smaller infaunal species remains unclear.…”

Section: Introductionmentioning

confidence: 99%

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Resuspension of postlarval soft-shell clams Mya arenaria through disturbance by the mud snail Ilyanassa obsoleta

Dunn¹,

Mullineaux

Mills³

1999

Mar. Ecol. Prog. Ser.

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Transport and mortality of newly settled post larvae potentially have a large influence on the population dynamics and adult distributions of coastal benthic species, including the soft-shell clam Mya arenana. Post-settlement transport typically occurs when boundary shear stresses are high enough to resuspend the surface sediments in which the small clams reside. The objective of the present study was to examine the effect of disturbance by the mud snail Ilyanassa obsoleta on the hydrodynamic transport of recently settled M, arenana. Laboratory flume experiments showed that d~stur-bance by activities of I. obsoleta caused suspension of small clams (1.8 and 2.3 mm) at boundary shear velocities (1.0 and 1.3 cm S-') that were too slow to suspend undisturbed clams. In shear velocities high enough to cause bulk sediment transport (1.4 and 2.0 cm S -' ) , more clams were suspended in the presence of snails than in their absence. Manipulative field experiments using cages to exclude snails demonstrated that abundances of juvenile A4. arenaria (year-l recruits) were lower in sediments where snails were present than where snails were absent. These results suggest that biological disturbance, such as that imposed by activities of mobile, benthic deposit feeders, may play an important role in postlarval transport and, eventually, in the adult distributions of infaunal bivalves.

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Section: -37mentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Resuspension of postlarval soft-shell clams Mya arenaria through disturbance by the mud snail Ilyanassa obsoleta

Dunn¹,

Mullineaux

Mills³

1999

Mar. Ecol. Prog. Ser.

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“…Fouling communities have considerably more topographic structure than mudflats and may represent either a preferred habitat, satisfactory refuge from biogenic disturbances intrinsic to local mudflats (e.g. the mudsnail nyanassa obsoleta; DeWitt & Levinton 1985, Levinton et al 1985, or the only habitats from which the amphipods are not eliminated by predators or lethal disturbance. The first 2 mechanisms are not mutually exclusive, and the first (habitat selection behavior) could have evolved as a consequence of the second (escape from stress).…”

Section: Microhabitat Choices In the Laboratory And Fieldmentioning

confidence: 99%

“…As sediment depth increases, protection from epifaunal predators and biogenic, sediment surface disturbers increases (Blundon & Kennedy 1982, DeWitt & Levinton 1985. As sediment depth decreases, less material is available to construct tubes.…”

Section: Limitations In Patch Discrimination Behaviormentioning

confidence: 99%

“…In laboratory studies, many cues have been shown to influence habitat selection, including sedimentary habitat features such as food, sediment depth, and sediment parhcle size (Meadows & Camp-bell 1972), disturbance from habitat residents (DeWitt & Levinton 1985), and pollutants (Akesson & Ehrenstrom 1984, Oakden et al 1984. Except for the work of Stretch (1983Stretch ( , 1985, little work has been conducted in the field on patch selection by adult or juvenile invertebrates.…”

Section: Introductionmentioning

confidence: 99%

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Microhabitat selection and colonization rates of a benthic amphipod

DeWitt¹

1987

Mar. Ecol. Prog. Ser.

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Microhabitat selechon behavior and colonization rates were examined for 2 age classes and sexes of the nocturnally emergent, diurnally tubicolous amphipod Microdeutopus gryllotalpa. Three habitat variables were stubed: food availability, sedlment thckness, and topograplc relief. Higher food concentration, deeper sedment, and greater topograplc relief were generally favored. Adult males and females made slmilar habitat choices, whereas juveniles were less discriminating. Both age classes colonized selected patches within 5 to 20 min of presentation to a c h o~c e of habitats, and both generally sustained their choices for at least 72 h In the laboratory. Microhabitat selections m field experiments were similar to those in laboratory experiments. Field colonization rates of 0.06 and 0.17 amphlpods per day and night, respectively, were comparable to rates of larval and postlarval colonization reported in other studles. High rates of nocturnal rnobhty and colonization, and rapid discrimination of microhabitats observed in thls and other b e n t h c species suggest that contemporary models of benthic community structure need to incorporate these migratory and colonization behaviors as alternatives to mortality as responses to disturbance, competitors, or predators.

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Relation of particle-size spectrum and food abundance to particle selectivity in the mud snail Hydrobia totteni (Prosobranchia: Hydrobiidae)

Levinton

DeWitt

1989

Mar. Biol.

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Field and laboratory experiments on interference between Hydrobia totteni and llyanassa obsoleta (Gastropoda) and its possible relation to seasonal shifts in vertical mudflat zonation

Cited by 33 publications

References 12 publications

Resuspension of postlarval soft-shell clams Mya arenaria through disturbance by the mud snail Ilyanassa obsoleta

Resuspension of postlarval soft-shell clams Mya arenaria through disturbance by the mud snail Ilyanassa obsoleta

Microhabitat selection and colonization rates of a benthic amphipod

Relation of particle-size spectrum and food abundance to particle selectivity in the mud snail Hydrobia totteni (Prosobranchia: Hydrobiidae)

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