1
|
Pederzani S, Britton K, Aldeias V, Bourgon N, Fewlass H, Lauer T, McPherron SP, Rezek Z, Sirakov N, Smith GM, Spasov R, Tran NH, Tsanova T, Hublin JJ. Subarctic climate for the earliest Homo sapiens in Europe. SCIENCE ADVANCES 2021; 7:eabi4642. [PMID: 34550733 PMCID: PMC8457653 DOI: 10.1126/sciadv.abi4642] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
The expansion of Homo sapiens across Eurasia marked a major milestone in human evolution that would eventually lead to our species being found across every continent. Current models propose that these expansions occurred only during episodes of warm climate, based on age correlations between archaeological and climatic records. Here, we obtain direct evidence for the temperatures faced by some of these humans through the oxygen isotope analysis of faunal remains from Bacho Kiro Cave, Bulgaria, the earliest clear record of H. sapiens in Europe. The results indicate that humans ∼45,000 years ago experienced subarctic climates with far colder climatic conditions than previously suggested. This demonstrates that the early presence of H. sapiens in Europe was not contingent on warm climates. Our results necessitate the revision of key models of human expansion and highlight the need for a less deterministic role of climate in the study of our evolutionary history.
Collapse
Affiliation(s)
- Sarah Pederzani
- Department of Human Evolution, Max Planck Institute
for Evolutionary Anthropology, Leipzig, Germany
- Department of Archaeology, University of Aberdeen,
Aberdeen, UK
| | - Kate Britton
- Department of Human Evolution, Max Planck Institute
for Evolutionary Anthropology, Leipzig, Germany
- Department of Archaeology, University of Aberdeen,
Aberdeen, UK
| | - Vera Aldeias
- Department of Human Evolution, Max Planck Institute
for Evolutionary Anthropology, Leipzig, Germany
- Interdisciplinary Center for Archaeology and
Evolution of Human Behaviour, University of Algarve, Faro, Portugal
| | - Nicolas Bourgon
- Department of Human Evolution, Max Planck Institute
for Evolutionary Anthropology, Leipzig, Germany
- Institut für Geowissenschaften, Arbeitsgruppe
für Angewandte und Analytische Paläontologie, Johannes
Gutenberg-Universität Mainz, Mainz, Germany
| | - Helen Fewlass
- Department of Human Evolution, Max Planck Institute
for Evolutionary Anthropology, Leipzig, Germany
| | - Tobias Lauer
- Department of Human Evolution, Max Planck Institute
for Evolutionary Anthropology, Leipzig, Germany
| | - Shannon P. McPherron
- Department of Human Evolution, Max Planck Institute
for Evolutionary Anthropology, Leipzig, Germany
| | - Zeljko Rezek
- Department of Human Evolution, Max Planck Institute
for Evolutionary Anthropology, Leipzig, Germany
- University of Pennsylvania Museum of Archaeology and
Anthropology, University of Pennsylvania, Philadelphia, PA, USA
| | - Nikolay Sirakov
- National Institute of Archaeology with Museum,
Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Geoff M. Smith
- Department of Human Evolution, Max Planck Institute
for Evolutionary Anthropology, Leipzig, Germany
| | - Rosen Spasov
- Archaeology Department, New Bulgarian University,
Sofia, Bulgaria
| | - N.-Han Tran
- Department of Human Behavior, Ecology and Culture,
Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Tsenka Tsanova
- Department of Human Evolution, Max Planck Institute
for Evolutionary Anthropology, Leipzig, Germany
| | - Jean-Jacques Hublin
- Department of Human Evolution, Max Planck Institute
for Evolutionary Anthropology, Leipzig, Germany
- Collège de France, Paris, France
| |
Collapse
|
2
|
Macías-Duarte A, Conway CJ. Geographic variation in dispersal of western burrowing owl (Athene cunicularia hypugaea) populations across North America. Behav Ecol 2021. [DOI: 10.1093/beheco/arab100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Abstract
Dispersal is one of the key elements of species’ metapopulation dynamics and, hence, influences global conservation status. Furthermore, determining the geographic variation in magnitude and direction of dispersal throughout a species’ distribution may expand our understanding of the causes of population declines in species of conservation concern. For instance, western burrowing owl (Athene cunicularia hypugaea) populations have declined at the northern and eastern edge of their breeding distribution during the 20th century. In the same period, large areas of thornscrub that did not support breeding owls were converted to irrigated agriculture in the southern edge of the subspecies’ breeding distribution in northwestern Mexico. These farmlands now support some of the highest breeding densities of owls. We tested the hypothesis that owls that colonized this recently created habitat originated from declining migratory populations from the northern portion of the subspecies’ range. We used stable isotopes 2H, 13C, and 15N in owl feathers to infer breeding dispersal patterns throughout the subspecies’ breeding range. Populations near the northern edge of the subspecies’ breeding range had immigrants that dispersed over larger distances than immigrants at low and mid latitude populations. However, agricultural populations in northwestern Mexico disrupted this latitudinal pattern, attracting owls from more distant locations. We also found immigrants originated from further distances in declining populations than increasing populations. Stable isotopes provided no evidence of contemporaneous breeding dispersal from Canadian populations to northwestern Mexico but suggest that agricultural areas in the southern edge of the subspecies’ distribution have altered the continental dispersal pattern.
Collapse
Affiliation(s)
- Alberto Macías-Duarte
- Arizona Cooperative Fish and Wildlife Research Unit, School of Natural Resources and the Environment, 104 Biological Sciences East, University of Arizona, Tucson, AZ 85721, USA
| | - Courtney J Conway
- U.S. Geological Survey, Idaho Cooperative Fish and Wildlife Research Unit, College of Natural Resources, University of Idaho, 875 Perimeter Drive MS 1141, Moscow, ID 83844, USA
| |
Collapse
|
3
|
Wommack EA, Marrack LC, Mambelli S, Hull JM, Dawson TE. Using oxygen and hydrogen stable isotopes to track the migratory movement of Sharp-shinned Hawks (Accipiter striatus) along Western Flyways of North America. PLoS One 2020; 15:e0226318. [PMID: 33201878 PMCID: PMC7671529 DOI: 10.1371/journal.pone.0226318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 10/30/2020] [Indexed: 11/18/2022] Open
Abstract
The large-scale patterns of movement for the Sharp-shinned Hawk (Accipiter striatus), a small forest hawk found throughout western North America, are largely unknown. However, based on field observations we set out to test the hypothesis that juvenile migratory A. striatus caught along two distinct migration routes on opposite sides of the Sierra Nevada Mountains of North America (Pacific Coast and Intermountain Migratory Flyways) come from geographically different natal populations. We applied stable isotope analysis of hydrogen (H) and oxygen (O) of feathers, and large scale models of spatial isotopic variation (isoscapes) to formulate spatially explicit predictions of the origin of the migrant birds. Novel relationships were assessed between the measured hydrogen and oxygen isotope values of feathers from A. striatus museum specimens of known origin and the isoscape modeled hydrogen and oxygen isotope values of precipitation at those known locations. We used these relationships to predict the origin regions for birds migrating along the two flyways from the measured isotope values of migrant’s feathers and the associated hydrogen and oxygen isotopic composition of precipitation where these feathers were formed. The birds from the two migration routes had overlap in their natal/breeding origins and did not differentiate into fully separate migratory populations, with birds from the Pacific Coast Migratory Flyway showing broader natal geographic origins than those from the Intermountain Flyway. The methodology based on oxygen isotopes had, in general, less predictive power than the one based on hydrogen. There was broad agreement between the two isotope approaches in the geographic assignment of the origins of birds migrating along the Pacific Coast Flyway, but not for those migrating along the Intermountain Migratory Flyway. These results are discussed in terms of their implications for conservation efforts of A. striatus in western North America, and the use of combined hydrogen and oxygen stable isotope analysis to track the movement of birds of prey on continental scales.
Collapse
Affiliation(s)
- Elizabeth A. Wommack
- Department of Zoology & Physiology, University of Wyoming Museum of Vertebrates, University of Wyoming, Laramie, Wyoming, United States of America
- Golden Gate Raptor Observatory, Sausalito, California, United States of America
- Department of Integrative Biology, University of California, Berkeley, California, United States of America
- * E-mail:
| | - Lisa C. Marrack
- Department of Environmental Science, Policy & Management, University of California, Berkeley, California, United States of America
| | - Stefania Mambelli
- Department of Integrative Biology, University of California, Berkeley, California, United States of America
- Center for Stable Isotope Biogeochemistry, University of California, Berkeley, California, United States of America
| | - Joshua M. Hull
- Golden Gate Raptor Observatory, Sausalito, California, United States of America
- Department of Animal Science, University of California, Davis, California, United States of America
| | - Todd E. Dawson
- Department of Integrative Biology, University of California, Berkeley, California, United States of America
- Department of Environmental Science, Policy & Management, University of California, Berkeley, California, United States of America
- Center for Stable Isotope Biogeochemistry, University of California, Berkeley, California, United States of America
| |
Collapse
|
4
|
de la Vega C, Jeffreys RM, Tuerena R, Ganeshram R, Mahaffey C. Temporal and spatial trends in marine carbon isotopes in the Arctic Ocean and implications for food web studies. GLOBAL CHANGE BIOLOGY 2019; 25:4116-4130. [PMID: 31498935 PMCID: PMC6899536 DOI: 10.1111/gcb.14832] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 08/13/2019] [Accepted: 08/20/2019] [Indexed: 05/21/2023]
Abstract
The Arctic is undergoing unprecedented environmental change. Rapid warming, decline in sea ice extent, increase in riverine input, ocean acidification and changes in primary productivity are creating a crucible for multiple concurrent environmental stressors, with unknown consequences for the entire arctic ecosystem. Here, we synthesized 30 years of data on the stable carbon isotope (δ13 C) signatures in dissolved inorganic carbon (δ13 C-DIC; 1977-2014), marine and riverine particulate organic carbon (δ13 C-POC; 1986-2013) and tissues of marine mammals in the Arctic. δ13 C values in consumers can change as a result of environmentally driven variation in the δ13 C values at the base of the food web or alteration in the trophic structure, thus providing a method to assess the sensitivity of food webs to environmental change. Our synthesis reveals a spatially heterogeneous and temporally evolving δ13 C baseline, with spatial gradients in the δ13 C-POC values between arctic shelves and arctic basins likely driven by differences in productivity and riverine and coastal influence. We report a decline in δ13 C-DIC values (-0.011‰ per year) in the Arctic, reflecting increasing anthropogenic carbon dioxide (CO2 ) in the Arctic Ocean (i.e. Suess effect), which is larger than predicted. The larger decline in δ13 C-POC values and δ13 C in arctic marine mammals reflects the anthropogenic CO2 signal as well as the influence of a changing arctic environment. Combining the influence of changing sea ice conditions and isotopic fractionation by phytoplankton, we explain the decadal decline in δ13 C-POC values in the Arctic Ocean and partially explain the δ13 C values in marine mammals with consideration of time-varying integration of δ13 C values. The response of the arctic ecosystem to ongoing environmental change is stronger than we would predict theoretically, which has tremendous implications for the study of food webs in the rapidly changing Arctic Ocean.
Collapse
Affiliation(s)
| | | | - Robyn Tuerena
- School of GeosciencesUniversity of EdinburghEdinburghUK
| | | | - Claire Mahaffey
- School of Environmental SciencesUniversity of LiverpoolLiverpoolUK
| |
Collapse
|
5
|
The Importance of Isotopic Turnover for Understanding Key Aspects of Animal Ecology and Nutrition. DIVERSITY-BASEL 2019. [DOI: 10.3390/d11050084] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Stable isotope-based methods have proved to be immensely valuable for ecological studies ranging in focus from animal movements to species interactions and community structure. Nevertheless, the use of these methods is dependent on assumptions about the incorporation and turnover of isotopes within animal tissues, which are oftentimes not explicitly acknowledged and vetted. Thus, the purpose of this review is to provide an overview of the estimation of stable isotope turnover rates in animals, and to highlight the importance of these estimates for ecological studies in terrestrial, freshwater, and marine systems that may use a wide range of stable isotopes. Specifically, we discuss 1) the factors that contribute to variation in turnover among individuals and across species, which influences the use of stable isotopes for diet reconstructions, 2) the differences in turnover among tissues that underlie so-called ‘isotopic clocks’, which are used to estimate the timing of dietary shifts, and 3) the use of turnover rates to estimate nutritional requirements and reconstruct histories of nutritional stress from tissue isotope signatures. As we discuss these topics, we highlight recent works that have effectively used estimates of turnover to design and execute informative ecological studies. Our concluding remarks suggest several steps that will improve our understanding of isotopic turnover and support its integration into a wider range of ecological studies.
Collapse
|
6
|
Warner MM, Plemons AM, Herrmann NP, Regan LA. Refining Stable Oxygen and Hydrogen Isoscapes for the Identification of Human Remains in Mississippi. J Forensic Sci 2017; 63:395-402. [PMID: 28664651 DOI: 10.1111/1556-4029.13575] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 05/10/2017] [Accepted: 05/11/2017] [Indexed: 11/30/2022]
Abstract
Isoscape refinement is an essential component for accurately predicting region-of-origin in forensic investigations involving isotope analysis of unidentified human remains. Stable oxygen (δ18 O) and hydrogen (δ2 H) isotopes were measured from 57 tap water samples collected across Mississippi to model refined isoscapes for the state. A tap water conversion equation, δ18 Otw =1.64 δ18 Op-31.35, was developed for the southeastern USA to test the prediction accuracy of the δ18 Otw isoscape using individuals with known residential histories. A local Mississippi resident (USAFA-134) was assigned with 90% probability to the correct region-of-origin reported by the participant. Assignments for Georgia residents (USAFA-118 and USAFA-205) had variable results, predicting USAFA-118 from Mississippi and USAFA-205 as a nonlocal resident. Stable isotope values often overlap geographically and a multi-isotope approach should be used when narrowing region(s)-of-origin(s). This study demonstrates the utility of refining isoscapes and the importance of tissue calibration in prediction assignments of human remains.
Collapse
Affiliation(s)
- Monica M Warner
- Tennessee Valley Archaeological Research, 2119 Metro Circle SW, Suite B, Huntsville, AL, 35801
| | - Amber M Plemons
- Department of Anthropology, Michigan State University, 655 Auditorium Drive, East Lansing, MI, 48824
| | - Nicholas P Herrmann
- Department of Anthropology, Texas State University, 601 University Drive, San Marcos, TX, 78666
| | - Laura A Regan
- US Department of Defense, 1920 Defense Pentagon, Room 3A932, Washington, DC, 20301
| |
Collapse
|
7
|
Magozzi S, Yool A, Vander Zanden HB, Wunder MB, Trueman CN. Using ocean models to predict spatial and temporal variation in marine carbon isotopes. Ecosphere 2017. [DOI: 10.1002/ecs2.1763] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- S. Magozzi
- School of Ocean and Earth Science University of Southampton European Way Southampton SO14 3ZH UK
- Department of Geology and Geophysics University of Utah 115 S 1460 E Salt Lake City Utah 84112 USA
| | - A. Yool
- National Oceanography Centre Southampton European Way Southampton SO14 3ZH UK
| | - H. B. Vander Zanden
- Department of Geology and Geophysics University of Utah 115 S 1460 E Salt Lake City Utah 84112 USA
- Department of Biology University of Florida PO Box 118525 Gainesville Florida 32611 USA
| | - M. B. Wunder
- Department of Integrative Biology University of Colorado Denver 1151 Arapahoe SI 2071 Denver Colorado 80217 USA
| | - C. N. Trueman
- School of Ocean and Earth Science University of Southampton European Way Southampton SO14 3ZH UK
| |
Collapse
|
8
|
Kaseke KF, Wang L, Wanke H, Turewicz V, Koeniger P. An Analysis of Precipitation Isotope Distributions across Namibia Using Historical Data. PLoS One 2016; 11:e0154598. [PMID: 27144269 PMCID: PMC4856410 DOI: 10.1371/journal.pone.0154598] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 04/17/2016] [Indexed: 11/18/2022] Open
Abstract
Global precipitation isoscapes based on the Global Network for Isotopes in Precipitation (GNIP) network are an important toolset that aid our understanding of global hydrologic cycles. Although the GNIP database is instrumental in developing global isoscapes, data coverage in some regions of hydrological interest (e.g., drylands) is low or non-existent thus the accuracy and relevance of global isoscapes to these regions is debatable. Capitalizing on existing literature isotope data, we generated rainfall isoscapes for Namibia (dryland) using the cokriging method and compared it to a globally fitted isoscape (GFI) downscaled to country level. Results showed weak correlation between observed and predicted isotope values in the GFI model (r2 < 0.20) while the cokriging isoscape showed stronger correlation (r2 = 0.67). The general trend of the local cokriging isoscape is consistent with synoptic weather systems (i.e., influences from Atlantic Ocean maritime vapour, Indian Ocean maritime vapour, Zaire Air Boundary, the Intertropical Convergence Zone and Tropical Temperate Troughs) and topography affecting the region. However, because we used the unweighted approach in this method, due to data scarcity, the absolute values could be improved in future studies. A comparison of local meteoric water lines (LMWL) constructed from the cokriging and GFI suggested that the GFI model still reflects the global average even when downscaled. The cokriging LMWL was however more consistent with expectations for an arid environment. The results indicate that although not ideal, for data deficient regions such as many drylands, the unweighted cokriging approach using historical local data can be an alternative approach to modelling rainfall isoscapes that are more relevant to the local conditions compared to using downscaled global isoscapes.
Collapse
Affiliation(s)
- Kudzai Farai Kaseke
- Department of Earth Sciences, Indiana University-Purdue University Indianapolis (IUPUI), Indianapolis, IN, 46202, United States of America
| | - Lixin Wang
- Department of Earth Sciences, Indiana University-Purdue University Indianapolis (IUPUI), Indianapolis, IN, 46202, United States of America
- * E-mail:
| | - Heike Wanke
- University of Namibia, Geology Department, Private Bag 13301, Windhoek, Namibia
| | - Veronika Turewicz
- University of Vienna, Department of Environmental Geosciences, Vienna, Austria
| | - Paul Koeniger
- Federal Institute for Geosciences and Natural Resources (BGR), Stilleweg 2, 30655, Hannover, Germany
| |
Collapse
|
9
|
Geographically Sourcing Cocaine's Origin - Delineation of the Nineteen Major Coca Growing Regions in South America. Sci Rep 2016; 6:23520. [PMID: 27006288 PMCID: PMC4804289 DOI: 10.1038/srep23520] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 02/26/2016] [Indexed: 12/02/2022] Open
Abstract
Previously, geo-sourcing to five major coca growing regions within South America was accomplished. However, the expansion of coca cultivation throughout South America made sub-regional origin determinations increasingly difficult. The former methodology was recently enhanced with additional stable isotope analyses (2H and 18O) to fully characterize cocaine due to the varying environmental conditions in which the coca was grown. An improved data analysis method was implemented with the combination of machine learning and multivariate statistical analysis methods to provide further partitioning between growing regions. Here, we show how the combination of trace cocaine alkaloids, stable isotopes, and multivariate statistical analyses can be used to classify illicit cocaine as originating from one of 19 growing regions within South America. The data obtained through this approach can be used to describe current coca cultivation and production trends, highlight trafficking routes, as well as identify new coca growing regions.
Collapse
|
10
|
Application of non-traditional stable isotopes in analytical ecogeochemistry assessed by MC ICP-MS - A critical review. Anal Bioanal Chem 2015; 408:369-85. [DOI: 10.1007/s00216-015-9025-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 08/25/2015] [Accepted: 09/02/2015] [Indexed: 10/23/2022]
|
11
|
Flockhart DTT, Kyser TK, Chipley D, Miller NG, Norris DR. Experimental evidence shows no fractionation of strontium isotopes ((87)Sr/(86)Sr) among soil, plants, and herbivores: implications for tracking wildlife and forensic science. ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 2015; 51:372-381. [PMID: 25789981 DOI: 10.1080/10256016.2015.1021345] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 01/19/2015] [Indexed: 06/04/2023]
Abstract
Strontium isotopes ((87)Sr/(86)Sr) can be useful biological markers for a wide range of forensic science applications, including wildlife tracking. However, one of the main advantages of using (87)Sr/(86)Sr values, that there is no fractionation from geological bedrock sources through the food web, also happens to be a critical assumption that has never been tested experimentally. We test this assumption by measuring (87)Sr/(86)Sr values across three trophic levels in a controlled greenhouse experiment. Adult monarch butterflies were raised on obligate larval host milkweed plants that were, in turn, grown on seven different soil types collected across Canada. We found no significant differences between (87)Sr/(86)Sr values in leachable Sr from soil minerals, organic soil, milkweed leaves, and monarch butterfly wings. Our results suggest that strontium isoscapes developed from (87)Sr/(86)Sr values in bedrock or soil may serve as a reliable biological marker in forensic science for a range of taxa and across large geographic areas.
Collapse
Affiliation(s)
- D T Tyler Flockhart
- a Department of Integrative Biology , University of Guelph , Guelph , Ontario , Canada
| | | | | | | | | |
Collapse
|
12
|
Symes CT, Wilson JW, Woodborne SM, Shaikh ZS, Scantlebury M. Resource partitioning of sympatric small mammals in an African forest-grassland vegetation mosaic. AUSTRAL ECOL 2013. [DOI: 10.1111/aec.12020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Craig T. Symes
- School of Animal, Plant & Environmental Sciences; University of the Witwatersrand; Private Bag 3; Wits; 2050
| | - John W. Wilson
- Department of Biology; North Carolina State University; Raleigh; USA
| | | | - Zara S. Shaikh
- Global Vision International; South African Wildlife Research Expedition; Ofcolaco
| | - Michael Scantlebury
- School of Biological Sciences; Queen's University Belfast; Belfast; Northern Ireland
| |
Collapse
|
13
|
Van Wilgenburg SL, Hobson KA, Brewster KR, Welker JM. Assessing dispersal in threatened migratory birds using stable hydrogen isotope (δD) analysis of feathers. ENDANGER SPECIES RES 2012. [DOI: 10.3354/esr00383] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
14
|
Zazzo A, Monahan FJ, Moloney AP, Green S, Schmidt O. Sulphur isotopes in animal hair track distance to sea. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:2371-2378. [PMID: 21818798 DOI: 10.1002/rcm.5131] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Stable sulphur isotope ratios ((34)S/(32)S) in animal tissues have been suggested as a tracer of coastal residency of terrestrial animals, but data are lacking that quantify the inland range of the sulphur coastal signal and the effects of seasonality. Here, we present δ(34)S measurements of sheep wool collected seasonally on eight farms across Ireland and wool samples collected opportunistically along the west and east coasts. We observed large (>10‰) δ(34)S differences across the island and we show that wool δ(34)S values were negatively correlated with distance to the west coast. We propose that this is due to the predominantly (south-)westerly airflow, possibly combined with the influence of anthropogenic sulphur deposited from the east. While essentially all the sulphur contained in west-coast wool is of marine origin, relatively high δ(34)S values were still measured >100 km inland, suggesting that marine sulphur can be carried over long distances. Seasonal variations are small at the individual level for sedentary grazing animals. We conclude that sulphur isotopes ratios measured in archival keratinous tissues can be used to describe regional δ(34)S isoscapes primarily defined by distance to coasts and thus provide a tool to detect short-term movements of domestic, feral and wild animals within such isoscapes.
Collapse
Affiliation(s)
- A Zazzo
- CNRS UMR 7209, Muséum national d'histoire naturelle, Archéozoologie, Archéobotanique: Sociétés, Pratiques et Environnements, Département Ecologie et Gestion de la Biodiversité, Paris, France.
| | | | | | | | | |
Collapse
|
15
|
Reichlin TS, Hobson KA, Wassenaar LI, Schaub M, Tolkmitt D, Becker D, Jenni L, Arlettaz R. Migratory connectivity in a declining bird species: using feather isotopes to inform demographic modelling. DIVERS DISTRIB 2010. [DOI: 10.1111/j.1472-4642.2010.00664.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|