Results 31 to 40 of about 566 (161)

Isoscape of Oxygen Stable Isotopes in Woods of the Amazon. [PDF]

Molecules
Stable oxygen isotopes (δ18O) in wood provide integrative records of plant water use and regional hydroclimatic processes, offering a powerful framework for spatial ecological analysis in tropical forests. Here, we present the first regional-scale δ18O isoscapes for Amazonian wood based on 387 trees sampled across 25 sites. After α-cellulose extraction,
Batista ACG, Araújo MGDS, Souza-Silva IM, Amorim DJ, Adorno FCF, Nardoto GB, Costa VE, Tomazello-Filho M, Higuchi N, Aparicio PDS, da Silva YLBV, Sccoti MSV, Barbosa AC, Costa FJV, Sena-Souza JP, Bowen GJ, Martinelli LA.   +16 more
europepmc   +2 more sources

Use of historical isoscapes to develop an estuarine nutrient baseline. [PDF]

Front Mar Sci, 2023
Coastal eutrophication is a prevalent threat to the healthy functioning of ecosystems globally. While degraded water quality can be detected by monitoring oxygen, nutrient concentrations, and algal abundance, establishing regulatory guidelines is complicated by a lack of baseline data (e.g., pre-Anthropocene).
Champlin LK, Woolfolk A, Oczkowski AJ, Rittenhouse A, Gray AB, Wasson K, Rahman FI, Zelanko P, Krupinski NBQ, Jeppesen R, Haskins J, Watson EB.   +11 more
europepmc   +6 more sources

Dual‐isotope isoscapes for predicting the scale of fish movements in lowland rivers

Ecosphere, 2021
Assessments of patterns of animal movements are important for understanding their spatial ecology. Geostatistical models of stable isotope (SI) landscapes (isoscapes) provide a complementary tool to telemetry for assessing and predicting animal movements,
Emily R. Winter, Andrew M. Hindes, Steve Lane, J. Robert Britton   +3 more
doaj   +1 more source

Strontium isoscapes for provenance, mobility and migration: the way forward. [PDF]

R Soc Open Sci
Strontium isotopes ( 87 Sr/ 86 Sr) are increasingly used as a provenance tool in multiple disciplines. Application to biological materials requires knowledge of the variation in bioavailable 87 Sr/
Spies MJ, Alblas A, Ambrose SH, Barakat S, Barberena R, Bataille C, Bowen GJ, Britton K, Cawthra H, Diamond R, Dosseto A, Evans JA, Fisher E, Gray K, Heddell-Stevens P, Holt E, James HF, Janzen A, Le Corré M, le Roux P, Lee-Thorp J, Mackay A, McNeill PJ, Montgomery J, Mugabe B, Oelze VM, Pfab M, Richards MP, Samec CT, Santana-Sagredo F, Serna A, Stantis C, Snoeck C, Stewart B, Stuurman C, Tarrant D, West AG, Winter-Schuh C, Sealy J.   +38 more
europepmc   +9 more sources

A strontium isoscape of inland southeastern Australia

Earth System Science Data, 2022
Abstract. The values and distribution patterns of the strontium (Sr) isotope ratio 87Sr / 86Sr in Earth surface materials is of use in the geological, environmental and social sciences. Ultimately, the 87Sr / 86Sr ratio of soil and everything that lives in and on it is inherited from the rock that is its parent material.
Patrice de Caritat, Anthony Dosseto, Florian Dux   +2 more
openaire   +4 more sources

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

Ecosphere, 2021
Understanding seasonal mobility, population connectivity, and site fidelity is critical for managing and preserving migratory species. We investigated the potential of coupling strontium (87Sr/86Sr) and hydrogen (δ2H) isotopes in feathers for ...
Brooke E. Crowley, Clément P. Bataille, Bruce A. Haak, Kaitlin M. Sommer   +3 more
doaj   +1 more source

Methods to estimate marine functional connectivity: A primer. [PDF]

Ecol Appl
Abstract Organism movement is a key process in the transfer of individuals, genes, functional traits, matter, and energy among habitat patches, at sea and across the land–sea interface. The resulting fluxes, collectively termed marine functional connectivity (MFC), underpin planetary health and an array of ecosystem services.
Sturrock AM, Tanner SE, Arnaud-Haond S, Aguzzi J, Barboza FR, Beger M, Blanco A, Brophy D, Carreton M, Childs AR, Costantini F, Gaggiotti OE, Gillanders BM, González-Irusta JM, Guizien K, Guy-Haim T, Haase S, Hunter E, Kotta J, Lacroix G, Öztürk RÇ, Pérez-Ruzafa A, Reis-Santos P, Riginos C, Rilov G, Rinkevich B, Rotllant G, Secor DH, Smoliński S, Trueman CN, Walther BD, Darnaude AM.   +31 more
europepmc   +2 more sources

Isotopic Tracers Suggest Limited Trans-Oceanic Movements and Regional Residency in North Pacific Blue Sharks (Prionace glauca)

Frontiers in Marine Science, 2021
Blue sharks (Prionace glauca) are globally distributed, large-bodied pelagic sharks that make extensive migrations throughout their range. In the North Pacific, mark-recapture studies have shown trans-Pacific migrations, but knowledge gaps in migration ...
Daniel J. Madigan, Oliver N. Shipley, Aaron B. Carlisle, Heidi Dewar, Owyn E. Snodgrass, Nigel E. Hussey   +5 more
doaj   +1 more source

Spatially-Resolved Integrated Precipitation-Surface-Groundwater Water Isotope Mapping From Crowd Sourcing: Toward Understanding Water Cycling Across a Post-glacial Landscape

Frontiers in Water, 2021
Isotopic analyses of δ18O and δ2H of water in the context of the hydrologic cycle have allowed hydrologists to better understand the portioning of water between the different water domains.
Alison Cole, David F. Boutt
doaj   +1 more source

Reconstructing continental‐scale variation in soil δ15N: a machine learning approach in South America

Ecosphere, 2020
Soil nitrogen isotope composition (δ15N) is an essential tool for investigating ecosystem nitrogen balances, plant–microbe interactions, ecological niches, animal migration, food origins, and forensics. The advancement of these applications is limited by
João Paulo Sena‐Souza, Benjamin Z. Houlton, Luiz Antônio Martinelli, Gabriela Bielefeld Nardoto   +3 more
doaj   +1 more source