Reliability of Multitaxon, Multiproxy Reconstructions of Environmental Conditions from Accretionary Biogenic Skeletons

Schöne, Bernd R.; Rodland, David L.; Fiebig, Jens; Oschmann, Wolfgang; Goodwin, David H.; Flessa, Karl W.; Dettman, David L.

doi:10.1086/501219

Cited by 42 publications

(24 citation statements)

References 54 publications

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“…Orr et al, 2005). The incorporation of mollusk larvae into palaeoenvironmental studies adds another tool for studies of palaeoclimate, corroborates environmental reconstructions based on other species, and supplements temporally or spatially patchy environmental information available from other species (Schö ne et al, 2006b). In addition, studies including planktonic larvae will complement existing studies of benthic mollusks.…”

Section: Palaeoceanography Studiesmentioning

confidence: 92%

Stable carbon and oxygen isotope fractionation in bivalve (Placopecten magellanicus) larval aragonite

Owen

Wanamaker

Feindel

et al. 2008

Geochimica et Cosmochimica Acta

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Section: Palaeoceanography Studiesmentioning

confidence: 92%

Stable carbon and oxygen isotope fractionation in bivalve (Placopecten magellanicus) larval aragonite

Owen

Wanamaker

Feindel

et al. 2008

Geochimica et Cosmochimica Acta

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“…A future approach would be to take equidistance micro‐samples on each axis between two growth lines, and then normalize to growth rate between years. A continuous milling method, such as that used by Schöne et al [2006] would be ideal.…”

Section: Resultsmentioning

confidence: 99%

“…Bivalves are becoming popular materials for reconstructing climatic and environmental conditions through the application of stable‐isotope and trace element geochemistry. Previous studies have shown that the stable‐isotope ratio ( δ 13 C shell , δ 18 O shell ) of bivalve shell carbonate can successfully record environmental conditions, such as temperature and salinity, and therefore have been applied to investigate seasonal variability [ Shackleton , 1973; Krantz et al , 1987; Goodwin et al , 2003a; Schöne et al , 2006]. These studies have typically used complete valves that are cross‐sectioned along their axis of maximum growth, and thus provide the most complete geochemical record through its life history.…”

Section: Introductionmentioning

confidence: 99%

A multiaxial growth analysis of stable isotopes in the modern shell of Saxidomus gigantea: Implications for sclerochronology studies

Kingston

Gröcke

Burchell

2008

Geochem Geophys Geosyst

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[1] Stable-isotope ratios of two modern Saxidomus gigantea specimens from Namu, British Columbia, are presented to show intraspecimen and interspecimen isotopic variation. Isotopic profiles (d 13 C shell , d 18O shell ) were generated along the axis of maximum growth. The profiles show that analogous seasonal variation is recorded in d 18O shell ; however, significant variability is recorded in d 13 C shell . We suggest this is caused by differences in metabolic activity between individuals. Intrashell variability along a growth horizon shows good reproducibility in d 18 O shell profiles generated from any portion of the shell can be used to evaluate seasonal fluctuations and may be excellent to evaluate types and rates of shell growth.

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“…In addition to these traditional approaches, sclerochronologic investigations have been used effectively to determine patterns of shell growth, as well as other features of bivalve life-histories (Jones and Gould 1999;Goodwin et al 2001;Buick and Ivany 2004;Scho¨ne et al 2006b). Sclerochronology, the mineralogic equivalent of dendrochronology, is the study of physical and chemical variations in the skeletons of organisms with accretionary growth (e.g., Wefer and Berger 1991).…”

Section: Introductionmentioning

confidence: 99%

Evolutionary origins of novel conchologic growth patterns in tropical American corbulid bivalves

Goodwin

Anderson

Roopnarine

2008

Evolution and Development

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We conducted a combined sclerochronologic and phylogenetic analysis to document patterns and rates of shell accretion in several subclades of related corbulids, and to explore the evolutionary origins of novel conchologic developmental patterns. We found three disparate patterns of valve development in Neogene tropical American corbulid genera. These patterns include growth through primarily radial accretion along the sagittal plane, and two derivative patterns: one characterized by initial deposition of a thin shell followed by valve thickening with little increase in valve height, and another producing a well-defined nepioconch through a marked change in the primary growth direction. We conducted a species-level phylogenetic analysis of the taxa surveyed for growth patterns, focusing on the ([Bothrocorbula+Hexacorbula]+Caryocorbula) clade. The phylogenetic distribution of shell growth patterns suggests that this clade is characterized by derivative patterns of growth. Oxygen-isotope calibrated ontogenetic age estimates of species in the derived Bothrocorbula subclade further suggest that transitions from the ancestral radial (sagittal) growth pattern to a derived pattern of growth are a function of heterochrony (peramorphosis by acceleration). These findings are significant because they link previously observed patterns of morphological constraint with a specific evolutionary process, demonstrate how morphologic constraint and innovation can be interrelated, and serve as a model for understanding the evolution of morphologic diversity in the clade as a whole. Furthermore, this study highlights the utility of sclerochronologic records as an important component of evolutionary developmental research on organisms with accretionary skeletal growth.

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Reliability of Multitaxon, Multiproxy Reconstructions of Environmental Conditions from Accretionary Biogenic Skeletons

Cited by 42 publications

References 54 publications

Stable carbon and oxygen isotope fractionation in bivalve (Placopecten magellanicus) larval aragonite

Stable carbon and oxygen isotope fractionation in bivalve (Placopecten magellanicus) larval aragonite

A multiaxial growth analysis of stable isotopes in the modern shell of Saxidomus gigantea: Implications for sclerochronology studies

Evolutionary origins of novel conchologic growth patterns in tropical American corbulid bivalves

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