Substrate exploitation and resistance to biotic disturbance in the brachiopod Terebratalia transversa and the bivalve Pododesmus macrochisma

Tomášových, Adam

doi:10.3354/meps07472

Cited by 12 publications

(22 citation statements)

References 55 publications

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“…If so, however, this increased biomass did not translate into elevated diversity. Increased predation and seafloor disturbance may have helped drive down the diversity and abundance of some taxa, such as brachiopods (67)(68)(69), although competition may also have been important (70), consistent with diversity dependence.…”

Section: Discussionmentioning

confidence: 99%

Sex and the shifting biodiversity dynamics of marine animals in deep time

Bush

Hunt

Bambach

2016

Proc. Natl. Acad. Sci. U.S.A.

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The fossil record of marine animals suggests that diversity-dependent processes exerted strong control on biodiversification: after the Ordovician Radiation, genus richness did not trend for hundreds of millions of years. However, diversity subsequently rose dramatically in the Cretaceous and Cenozoic (145 million years ago–present), indicating that limits on diversification can be overcome by ecological or evolutionary change. Here, we show that the Cretaceous–Cenozoic radiation was driven by increased diversification in animals that transfer sperm between adults during fertilization, whereas animals that broadcast sperm into the water column have not changed significantly in richness since the Late Ordovician (∼450 million years ago). We argue that the former group radiated in part because directed sperm transfer permits smaller population sizes and additional modes of prezygotic isolation, as has been argued previously for the coincident radiation of angiosperms. Directed sperm transfer tends to co-occur with many ecological traits, such as a predatory lifestyle. Ecological specialization likely operated synergistically with mode of fertilization in driving the diversification that began during the Mesozoic marine revolution. Plausibly, the ultimate driver of diversification was an increase in food availability, but its effects on the fauna were regulated by fundamental reproductive and ecological traits.

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Section: Discussionmentioning

confidence: 99%

Sex and the shifting biodiversity dynamics of marine animals in deep time

Bush

Hunt

Bambach

2016

Proc. Natl. Acad. Sci. U.S.A.

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“…Steneck (1983) subsequently examined the role of herbivorous grazing on the post mid-Mesozoic evolution of calcareous algae. Most recently, Tomašových (2008aTomašových ( , 2008b has reconsidered the postulated link between the Mesozoic grazing disturbance and presentday brachiopod distribution. The present account aims to build upon this work.…”

Section: Introductionmentioning

confidence: 97%

“…Several workers (notably Vermeij 1977Vermeij , 1987Steneck 1983;Asgaard and Stentoft 1984;Tomašových 2008aTomašových , 2008b have drawn attention to the mid-Mesozoic diversification of bioerosion as a significant but probably underestimated component of the MMR. In present-day seas, the omnivorous grazing activity of regular echinoids, especially, is responsible for widespread dislodgement, removal and/or consumption of sessile and/or cemented epifauna from hard substrates.…”

Section: Introductionmentioning

confidence: 99%

“…The Mesozoic also witnessed the diversification of cemented bivalved molluscs, similarly interpreted as an adaptation that countered increasing predation pressure (Harper 1991). Articulate brachiopods underwent a Mesozoic-Cenozoic decline involving a retreat from shallow-water settings towards low-productivity, hard-substrate, deep-water and/or cryptic, 'refugia' (Vermeij 1977(Vermeij , 1987Thayer 1985;Tomašových 2008aTomašových , 2008bZuschin and Mayrhofer 2009).…”

Section: Introductionmentioning

confidence: 99%

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Grazing bioerosion in Jurassic seas: a neglected factor in the Mesozoic marine revolution?

Radley

2010

Historical Biology

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Grazing bioerosion, notably by chitons, gastropods and regular echinoids, is a powerful destructive force in many recent shallow-marine environments and impacts significantly on sessile epibionts through grazing predation and/or unselective dislodgement. Grazing bioerosion was an important component of a major phase of biotic escalation; the Mesozoic marine revolution. Recent investigations of hard substrates in southern British Jurassic marine formations have identified widespread ichnofossils attributable to grazing activity by gastropods and/or chitons, and regular echinoids. The co-occurring benthic macrofaunas include groups that would have been vulnerable to grazing disturbance and dislodgement; notably articulate brachiopods. The emerging ichnological evidence strengthens the argument for grazing bioerosion as a significant contributor to the Mesozoic -Cenozoic decline of the articulate brachiopods, and their retreat to deep-water and/or cryptic refugia.

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“…In the Cretaceous and Cenozoic, however, their importance decreased (Sandy 2001). Today, medium-and large-sized brachiopods can be locally or regionally abundant on the open shelf in polar (e.g., Peck et al 2005) and cool-temperate regions (e.g., Noble et al 1976;TunnicliVe and Wilson 1988;Tomasových 2008). Species from tropical and subtropical shelves, in contrast, are typically small-sized (<1 cm) and-apart from an upwelling-inXuenced outer shelf occurrence in the south Atlantic (Kowalewski et al 2002)-usually occur in cryptic habitats, i.e.…”

Section: Introductionmentioning

confidence: 99%

Brachiopods from cryptic coral reef habitats in the northern Red Sea

Zuschin

Mayrhofer

2009

Facies

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In contrast to the Palaeozoic to Jurassic fossil record, modern tropical and subtropical shallow-water brachiopods are typically small-sized and mostly restricted to cryptic habitats in coral reefs, but information on microhabitat-composition is scant. At Dahab, northern Red Sea, living brachiopods of the genus Argyrotheca were only detected on massively encrusted coral colonies attached to encrusting foraminifers and coralline red algae. Three samples from autochthonous sediments underneath coral colonies are comparatively rich in the brachiopod genera Megerlia and Argyrotheca, and additionally show low numbers of Novocrania and Thecidellina. Based on a coarse-grain analysis including more than 16,000 components >1 mm, these brachiopod shells co-occur with skeletal components of 11 higher taxa. Decapods, Wxosessile foraminifers, molluscs, scleractinians, and coralline red algae clearly dominate the assemblages. Brachiopods in this study always contribute less than 2% to the sediment composition. This conWrms previous results that even in brachiopod habitats the contribution of brachiopod shells to the total sediment composition is almost negligible. Our study indicates that brachiopods co-occur with pteriomorph bivalves and other epifauna in the cryptic habitats with limited space for encrusters or epibionts on the undersides of scleractinians and it tentatively supports the hypothesis of brachiopods preferring habitats with low grazing pressure, because shelly components of grazers (polyplacophorans and regular echinoids) are rare in our samples.

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Substrate exploitation and resistance to biotic disturbance in the brachiopod Terebratalia transversa and the bivalve Pododesmus macrochisma

Cited by 12 publications

References 55 publications

Sex and the shifting biodiversity dynamics of marine animals in deep time

Sex and the shifting biodiversity dynamics of marine animals in deep time

Grazing bioerosion in Jurassic seas: a neglected factor in the Mesozoic marine revolution?

Brachiopods from cryptic coral reef habitats in the northern Red Sea

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