Stable isotopes and C/N ratios in marine sediments as a tool for discriminating anthropogenic impact

2011 ◽  
Vol 13 (12) ◽  
pp. 3399 ◽  
Author(s):  
P. Rumolo ◽  
M. Barra ◽  
S. Gherardi ◽  
E. Marsella ◽  
M. Sprovieri
Keyword(s):  
Stable Isotopes ◽  
Marine Sediments ◽  
Anthropogenic Impact

Distribution patterns of organic pollutants and microbial processes in marine sediments across a gradient of anthropogenic impact

2018 ◽  
Vol 242 ◽  
pp. 1860-1870 ◽  
Author(s):  
A. Zoppini ◽  
N. Ademollo ◽  
L. Patrolecco ◽  
L. Langone ◽  
S. Lungarini ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Marine Sediments ◽  
Anthropogenic Impact ◽  
Distribution Patterns ◽  
Microbial Processes

Composition of organic sulfur in riverine and marine sediments: Insights from sulfur stable isotopes and XANES spectroscopy

2016 ◽  
Vol 99 ◽  
pp. 102-112 ◽  
Author(s):  
Mao-Xu Zhu ◽  
Liang-Jin Chen ◽  
Gui-Peng Yang ◽  
Xiang-Li Huang ◽  
Yi-Dong Zhao
Keyword(s):  
Stable Isotopes ◽  
Marine Sediments ◽  
Xanes Spectroscopy ◽  
Organic Sulfur

scholarly journals Ancient Faunal History Revealed by Interdisciplinary Biomolecular Approaches

Diversity ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 370
Author(s):  
Erika Rosengren ◽  
Arina Acatrinei ◽  
Nicolae Cruceru ◽  
Marianne Dehasque ◽  
Aritina Haliuc ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Anthropogenic Impact ◽  
Evolutionary Dynamics ◽  
Domestic Species ◽  
Complex Processes ◽  
Whole Genomes ◽  
Faunal Diversity ◽  
Broad Variety ◽  
Diversity Dynamics ◽  
Dynamics Of Populations

Starting four decades ago, studies have examined the ecology and evolutionary dynamics of populations and species using short mitochondrial DNA fragments and stable isotopes. Through technological and analytical advances, the methods and biomolecules at our disposal have increased significantly to now include lipids, whole genomes, proteomes, and even epigenomes. At an unprecedented resolution, the study of ancient biomolecules has made it possible for us to disentangle the complex processes that shaped the ancient faunal diversity across millennia, with the potential to aid in implicating probable causes of species extinction and how humans impacted the genetics and ecology of wild and domestic species. However, even now, few studies explore interdisciplinary biomolecular approaches to reveal ancient faunal diversity dynamics in relation to environmental and anthropogenic impact. This review will approach how biomolecules have been implemented in a broad variety of topics and species, from the extinct Pleistocene megafauna to ancient wild and domestic stocks, as well as how their future use has the potential to offer an enhanced understanding of drivers of past faunal diversity on Earth.

Disentangling the role of shared ancestry and the environment on leaf stable isotopes

2019 ◽  
Author(s):  
Marko J. Spasojevic ◽  
Sören Weber1
Keyword(s):  
Stable Isotopes ◽  
Environmental Conditions ◽  
Evolutionary History ◽  
Environmental Control ◽  
Phylogenetic Signal ◽  
Individual Species ◽  
Habitat Types ◽  
Δ13c And Δ15n ◽  
Environmental Controls ◽  
Shared Ancestry

Stable carbon (C) and nitrogen (N) isotopes in plants are important indicators of plant water use efficiency and N acquisition strategies. While often regarded as being under environmental control, there is growing evidence that evolutionary history may also shape variation in stable isotope ratios (δ13C and δ15N) among plant species. Here we examined patterns of foliar δ13C and δ15N in alpine tundra for 59 species in 20 plant families. To assess the importance of environmental controls and evolutionary history, we examined if average δ13C and δ15N predictably differed among habitat types, if individual species exhibited intraspecific trait variation (ITV) in δ13C and δ15N, and if there were a significant phylogenetic signal in δ13C and δ15N. We found that variation among habitat types in both δ13C and δ15N mirrored well-known patterns of water and nitrogen limitation. Conversely, we also found that 40% of species exhibited no ITV in δ13C and 35% of species exhibited no ITV in δ15N, suggesting that some species are under stronger evolutionary control. However, we only found a modest signal of phylogenetic conservatism in δ13C and no phylogenetic signal in δ15N suggesting that shared ancestry is a weaker driver of tundra wide variation in stable isotopes. Together, our results suggest that both evolutionary history and local environmental conditions play a role in determining variation in δ13C and δ15N and that considering both factors can help with interpreting isotope patterns in nature and with predicting which species may be able to respond to rapidly changing environmental conditions.

LBA-ECO CD-02 CARBON, NITROGEN, OXYGEN STABLE ISOTOPES IN ORGANIC MATERIAL, BRAZIL

2010 ◽  
Author(s):  
J. BERRY, ◽  
C. COOK, ◽  
T.F. DOMINGUES, ◽  
J. EHLERINGER, ◽  
L. FLANAGAN, ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Organic Material ◽  
Oxygen Stable Isotopes
Sign in / Sign up

Export Citation Format

Share Document