Regional and interspecific variation in Sr, Ca, and Sr/Ca ratios in avian eggshells from the USA

Mora, Miguel A.; Brattin, Bryan L.; Baxter, Catherine; Rivers, James W.

doi:10.1007/s10646-011-0703-4

Cited by 11 publications

(5 citation statements)

References 18 publications

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“…Its concentration was higher in dead compared with alive turtles (dead: mean = 1.82, median = 1.11, max = 9.23; alive: mean = 1.06, median = 0.99, max = 3.13; Table 2 in [ 9 ]). Sr is chemically similar to Ca and is often incorporated into bone and eggshells by organisms [ 40 ]. Typically, Ca and Sr incorporated into the egg originates from the bones and blood of the female [ 41 ].…”

Section: Discussionmentioning

confidence: 99%

New Method for Imputation of Unquantifiable Values Using Bayesian Statistics for a Mixture of Censored or Truncated Distributions: Application to Trace Elements Measured in Blood of Olive Ridley Sea Turtles from Mexico

Salvat-Leal

Cortés-Gómez

Romero

et al. 2022

Animals

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One recurring difficulty in ecotoxicological studies is that a substantial portion of concentrations are below the limits of detection established by analytical laboratories. This results in censored distributions in which concentrations of some samples are only known to be below a threshold. The currently available methods have several limitations because they cannot be used with complex situations (e.g., different lower and upper limits in the same dataset, mixture of distributions, truncation and censoring in a single dataset). We propose a versatile method to fit the most diverse situations using conditional likelihood and Bayesian statistics. We test the method with a fictive dataset to ensure its correct description of a known situation. Then we apply the method to a dataset comprising 25 element concentrations analyzed in the blood of nesting marine turtles. We confirm previous findings using this dataset, and we also detect an unexpected new relationship between mortality and strontium concentration.

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Section: Discussionmentioning

confidence: 99%

New Method for Imputation of Unquantifiable Values Using Bayesian Statistics for a Mixture of Censored or Truncated Distributions: Application to Trace Elements Measured in Blood of Olive Ridley Sea Turtles from Mexico

Salvat-Leal

Cortés-Gómez

Romero

et al. 2022

Animals

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“…Biochemically, Sr is very similar to Ca, which may result in enzymatic or structural substitutions during nutrient uptake (Mora et al 2003 ; Matz and Rocque 2007 ). As a limestone element, Sr is very similar to Ca and may be mobilised from maternal rocks (Bielanski 1996 ; Kabata-Pendias and Mukherjee 2007 ; Mora et al 2011 ). Post-hatching eggshells are depleted in these elements as they are transferred to the developing chick.…”

Section: Discussionmentioning

confidence: 99%

Inter-species and inter-colony differences in elemental concentrations in eggshells of sympatrically nesting great cormorants Phalacrocorax carbo and grey herons Ardea cinerea

Jakubas

Kitowski

Wiącek

et al. 2018

Environ Sci Pollut Res

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We compared the concentrations of 17 heavy metals and essential elements in post-hatching eggshells of two waterbirds, the obligate piscivorous great cormorant Phalacrocorax carbo (GCM) and the more omnivorous grey heron Ardea cinerea (GHR), breeding sympatrically in eight mixed colonies in Poland. We found significant inter-species and inter-colony differences in the levels of most of the elements. GHR had significantly higher concentrations of Al, which can be explained by its very low stomach pH: an acidic environment favours the release of Al compounds. Differences in Mn, Ni, Cu, Se and Hg concentrations can be attributed to the various contributions of fish and other aquatic organisms to the diet, and to the exploration of different habitats (GCM exclusively aquatic, GHR a wider range) and microhabitats (GCM, in contrast to wading GHR, dive for food, exploring the whole depth range of water bodies), differently exposed to contamination by those elements from sediments. Inter-colony differences were related to the level of industrialisation. We recorded higher levels of some elements in the eggshells (Fe, Mn in both species and Cr, Ni and Zn in GCM) collected in industrialised areas, which may be associated with the negative environmental impact of industrial areas.Electronic supplementary materialThe online version of this article (10.1007/s11356-018-3765-5) contains supplementary material, which is available to authorized users.

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“…The same is true for eggshells. Background concentrations of Sr in eggshells from the literature have been noted at 176 mg/kg (Mora ) to 507 mg/kg (Mora et al ). The maximum eggshell concentrations from impacted sites were all within or below this range (maximum of 176.3 mg/kg).…”

Section: Discussionmentioning

confidence: 99%

Effects of coal fly ash on tree swallow reproduction in Watts Bar Reservoir, Tennessee

Walls

Meyer

Iannuzzi

et al. 2014

Integr Envir Assess & Manag

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Coal‐fly ash was released in unprecedented amounts (4.1 × 106 m3) into the Emory River from the Tennessee Valley Authority Kingston Fossil Plant on Watts Bar Reservoir in Tennessee. Tree swallows were exposed to ash‐related constituents at the ash release via their diet of emergent aquatic insects, whose larval forms can accumulate constituents from submerged river sediments. Reproduction of tree swallow colonies was assessed over a 2‐year period by evaluating whether 1) ash constituent concentrations were elevated in egg, eggshell, and nestling tissues at colonies near ash‐impacted river reaches compared to reference colonies, 2) production of fledglings per nesting female was significantly lower in ash‐impacted colonies versus reference colonies, and 3) ash constituent concentrations or diet concentrations were correlated with nest productivity measures (clutch size, hatching success, and nestling survival, and fledglings produced per nest). Of the 26 ash constituents evaluated, 4 (Se, Sr, Cu, and Hg) were significantly elevated in tissues potentially from the ash, and 3 (Se, Sr, and Cu) in tissues or in swallow diet items were weakly correlated to at least one nest‐productivity measure or egg weight. Tree swallow hatching success was significantly reduced by 12%, but fledgling production per nest was unaffected due to larger clutch sizes in the impacted than reference colonies. Bioconcentration from the ash to insects in the diet to tree swallow eggs appears to be low. Overall, adverse impacts of the ash on tree swallow reproduction were not observed, but monitoring is continuing to further ensure Se from the residual ash does not adversely affect tree swallow reproduction over time. Integr Environ Assess Manag 2015;11:56–66. © 2014 SETAC

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Regional and interspecific variation in Sr, Ca, and Sr/Ca ratios in avian eggshells from the USA

Cited by 11 publications

References 18 publications

New Method for Imputation of Unquantifiable Values Using Bayesian Statistics for a Mixture of Censored or Truncated Distributions: Application to Trace Elements Measured in Blood of Olive Ridley Sea Turtles from Mexico

New Method for Imputation of Unquantifiable Values Using Bayesian Statistics for a Mixture of Censored or Truncated Distributions: Application to Trace Elements Measured in Blood of Olive Ridley Sea Turtles from Mexico

Inter-species and inter-colony differences in elemental concentrations in eggshells of sympatrically nesting great cormorants Phalacrocorax carbo and grey herons Ardea cinerea

Effects of coal fly ash on tree swallow reproduction in Watts Bar Reservoir, Tennessee

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