Habitat use strategy influences the tissue signature of trace elements including rare earth elements in an urban-adapted omnivorous bird

Brown, Ludovick; Rosabal, Maikel; Sorais, Manon; Poirier, André; Wîdory, David; Verreault, Jonathan

doi:10.1016/j.envres.2018.10.004

Cited by 22 publications

(9 citation statements)

References 54 publications

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“…It is quite possible that sediment waste, dust, and ash from this operation have impacted local bioavailable 87 Sr/ 86 Sr (Maurer et al 2012;Reynolds et al 2012). Combining isotope data with trace element data could help confirm this possibility (e.g., Einoder et al 2018, Bourbour et al 2019, Brown et al 2019. Here again, we strongly encourage other researchers to carefully assess their known-origin 87 Sr/ 86 Sr data prior to isoscape calibration.…”

Section: Isoscape Calibrationmentioning

confidence: 79%

Identifying nesting grounds for juvenile migratory birds with dual isotope: an initial test using North American raptors

et al. 2021

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Understanding seasonal mobility, population connectivity, and site fidelity is critical for managing and preserving migratory species. We investigated the potential of coupling strontium ( 87 Sr/ 86 Sr) and hydrogen (d 2 H) isotopes in feathers for quantitatively constraining natal origin for juvenile migratory predatory birds (raptors) using a probabilistic framework. We first calibrated single-isotope models that predict spatial isotope variability in raptor feathers (called isoscapes) by analyzing and compiling isotope data for juvenile birds with known origins in North America and comparing their values to existing isotopic baselines in precipitation (for d 2 H) and bioavailable strontium (for 87 Sr/ 86 Sr). We then compared the potential of hydrogen and strontium isotopes for refining geographic assignments either independently or combined. While yielding very different probability maps, hydrogen and strontium isotopes performed equally well at constraining regions of natal origin. However, thanks to the complementarity of these isotopes, dual d 2 H and 87 Sr/ 86 Sr assignments increased predictive precision by an order of magnitude compared to either isotope alone. Lastly, we used the models to predict natal origin for juveniles with unknown origins that were sampled in southwestern Idaho, USA, during their autumn migration. The precision of geographic assignments for birds with unknown origins varied. Nevertheless, dual-isotope assignments clearly distinguished individuals born outside of southwestern Idaho, and overall, predicted geographic assignments matched breeding ranges for the study species. Quantitative dual-isotope geographic assignments enhance our ability to predict natal range of migratory raptors and complement other methods for monitoring movement and population connectivity. Combining isotopic data from feathers with other intrinsic geochemical and genetic data, as well as extrinsic markers, such as transmitters or bands, and niche-modeling approaches will further refine key nesting areas for migratory birds.

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Section: Isoscape Calibrationmentioning

confidence: 79%

Identifying nesting grounds for juvenile migratory birds with dual isotope: an initial test using North American raptors

et al. 2021

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“…Differences in prey composition will be reflected in the residue levels, e.g., eagle owls inhabiting coastal habitats preying on waterfowl would be exposed to higher concentrations than owls feeding mainly on voles in inland rural areas. Individual preferences in habitat use also will have an effect: a study of radio-tracked ring-billed gulls ( Larus delawarensis ) from the same breeding colony showed that the time spent foraging in landfills and wastewater basins differed and correlated positively with liver Pb concentrations (Brown et al 2018). Changes in habitats over time also may cause switches in prey availability (Penteriani et al 2002).…”

Section: Discussionmentioning

confidence: 99%

Temporal Changes in Concentrations of Lead and Other Trace Metals in Free-Ranging Eurasian Eagle Owls Bubo bubo in Sweden

Helander

Sundbom

Runkel

et al. 2019

Arch Environ Contam Toxicol

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Patterns of lead and other trace metals were examined in 122 Eurasian eagle owls Bubo bubo found dead in Sweden in the period 1978–2013. Environmental lead (Pb) has decreased over recent decades from reduced anthropogenic emissions but mortality by Pb poisoning is still frequently reported for avian raptors and scavengers exposed to Pb ammunition. One objective here was to determine if Pb concentrations in a nocturnal non-scavenging raptor follow the general decline observed in other biota. Pb concentration in owl liver was significantly correlated with body weight, sex, latitude, longitude and season. Pb showed a significant decreasing trend towards north and west. Starved birds had significantly higher concentrations. Total Pb concentrations in liver averaged 0.179 μg g −1 dry weight (median 0.103) and decreased by 5.6% per year 1978–2013, or 5.3% after adjustment for confounding factors, similar to trends in other species. Among 14 other trace elements only antimony and arsenic showed decreasing trends. Lead isotope ratios 206 Pb/ 207 Pb and 208 Pb/ 207 Pb increased from 1.138 and 2.408 in 1978–1985 to 1.170 and 2.435 in 2010–2013, respectively, demonstrating that the decreasing Pb concentration in eagle owl is related to the phase-out of leaded gasoline in Europe, where Pb additives had much lower isotope ratios than natural lead in Swedish soils. Only one incidence of suspected Pb poisoning (40.7 μg g −1 in liver) was observed indicating that poisoning from ingestion of metallic lead is rare (< 1%) in eagle owl in Sweden, in contrast to what has been reported for eagles.

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“…Environmental levels of most trace elements are expected to vary not only with location, but also with habitat (Brown et al 2019). For example, soil acidity plays a key role in the availability of many elements to plants (Courtman et al 2012, Noulas et al 2018), as does aridity (Moreno‐Jiménez et al 2019) and can thus modify the concentrations of those elements in the food web.…”

Section: Discussionmentioning

confidence: 99%

“…Some hypotheses that have been put forward include differences in diet (Jones et al 1987, Solonen et al 1999) and intrinsic physiological differences (Kelsall et al 1975a). Habitat selection is also known to influence trace element concentration at an individual level (Bortolotti et al 1989, Poesel et al 2008, Brown et al 2019), which means that species that occupy different habitats from each other are also expected to show different trace element profiles.…”

Section: Discussionmentioning

confidence: 99%

Intra‐ and interspecific variation in trace element concentrations in feathers of north European trans‐African migrants

Sommer

Lehikoinen

2023

Journal of Avian Biology

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The knowledge of migratory connectivity is important for understanding the potential drivers of populations and it is thus important for conservation implications. Migratory connectivity of species can be studied using exogenous, such as rings and transmitters, or endogenous markers, such as stable isotopes and trace elements. The use of trace elements has been much less frequently studied compared to stable isotopes. Trace elements can be studied from the feathers of birds and this does not necessarily require trapping of individuals. Here we studied the variation of 18 different trace elements in feathers of two long‐distance trans‐African migrants, willow warblers Phylloscopus trochilus and barn swallows Hirundo rustica, using body feathers of museum specimens of birds from Finnish breeding grounds. The trace elements were measured using laser‐ablation inductively‐coupled‐plasma mass‐spectrometry (LA‐ICP‐MS). We show that trace element concentrations were relatively stable along the rachis within the same feather except in Ni and S, which showed a quadratic pattern. In general, variation within feathers of the same individuals was smaller than in feathers between individuals for most elements. Furthermore, concentrations of 11 trace elements showed significantly higher concentrations in willow warbler feathers collected in spring than in autumn, moulted in African wintering grounds and European breeding grounds, respectively. Last, concentrations of seven trace elements were significantly higher in the spring feathers of willow warblers compared to barn swallows. This suggests that trace elements could be used to separate moulting grounds of the birds on the larger scale within the same species, but also sampling design should be carefully considered.

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Habitat use strategy influences the tissue signature of trace elements including rare earth elements in an urban-adapted omnivorous bird

Cited by 22 publications

References 54 publications

Identifying nesting grounds for juvenile migratory birds with dual isotope: an initial test using North American raptors

Identifying nesting grounds for juvenile migratory birds with dual isotope: an initial test using North American raptors

Temporal Changes in Concentrations of Lead and Other Trace Metals in Free-Ranging Eurasian Eagle Owls Bubo bubo in Sweden

Intra‐ and interspecific variation in trace element concentrations in feathers of north European trans‐African migrants

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