The late-Holocene history of Gormire Lake (NE England) and its catchment: a multiproxy reconstruction of past human impact

The Holocene ◽  
2003 ◽  
Vol 13 (5) ◽  
pp. 677-690 ◽  
Author(s):  
Frank Oldfield ◽  
Rebecca Wake ◽  
John Boyle ◽  
Richard Jones ◽  
Steve Nolan ◽  
...  
2014 ◽  
Vol 24 (4) ◽  
pp. 487-501 ◽  
Author(s):  
Serge D. Muller ◽  
Laila Rhazi ◽  
Benjamin Andrieux ◽  
Marion Bottollier-Curtet ◽  
Séverine Fauquette ◽  
...  

2020 ◽  
Author(s):  
Erdoo Mongol ◽  
◽  
Francisca E. Oboh-Ikuenobe ◽  
Jonathan Obrist-Farner ◽  
Alex Correa-Metrio

2021 ◽  
pp. 1-13
Author(s):  
E.J. Chamberlain ◽  
A.J. Christ ◽  
R.W. Fulweiler

Abstract Ice-covered lakes in Antarctica preserve records of regional hydroclimate and harbour extreme ecosystems that may serve as terrestrial analogues for exobiotic environments. Here, we examine the impacts of hydroclimate and landscape on the formation history of Lake Eggers, a small ice-sealed lake, located in the coastal polar desert of McMurdo Sound, Antarctica (78°S). Using ground penetrating radar surveys and three lake ice cores we characterize the ice morphology and chemistry. Lake ice geochemistry indicates that Lake Eggers is fed primarily from local snowmelt that accreted onto the lake surface during runoff events. Radiocarbon ages of ice-encased algae suggest basal ice formed at least 735 ± 20 calibrated years before present (1215 C.E.). Persisting through the Late Holocene, Lake Eggers alternated between periods of ice accumulation and sublimation driven by regional climate variability in the western Ross Sea. For example, particulate organic matter displayed varying δ15N ratios with depth, corresponding to sea ice fluctuations in the western Ross Sea during the Late Holocene. These results suggest a strong climatic control on the hydrologic regime shifts shaping ice formation at Lake Eggers.


2016 ◽  
Vol 25 (12) ◽  
pp. 2453-2472 ◽  
Author(s):  
Elena Y. Novenko ◽  
Andrey N. Tsyganov ◽  
Olga V. Rudenko ◽  
Elena V. Volkova ◽  
Inna S. Zuyganova ◽  
...  

Author(s):  
William H. Durham

Why is Galápagos so endlessly fascinating, whether to read about, to visit, or both? Reasons include its menagerie of truly unusual organisms (like tree daisies, marine iguanas, and flightless cormorants), its relatively low human impact (most of its endemic biodiversity is still extant), and its unrivalled role in the history of science ever since Charles Darwin. Exuberant Life offers a contemporary synthesis of what is known about the evolution of the curiously wonderful organisms of Galápagos, of how they are faring in the tumultuous world of human-induced change, and how evolution can guide efforts today for their conservation. In eight case-study chapters, the book looks at each organism’s ancestry, at how and when it came to Galápagos, and how and why it changed since its arrival, all with an eye to its conservation today. Such analysis often provides surprises and suggestions not previously considered, like the potential benefits to joint conservation efforts with tree daisies and tree finches, for example, or ways that a new explanation for peculiar behaviors in Nazca and blue-footed boobies can benefit both species today. In each chapter, a social-ecological systems framework is used, because human influence is always present, and because it allows an explicit link to evolution. We see how the evolutionary fitnesses of Galápagos organisms are now a product of both ecological conditions and human impact, including climate change. Historically, Galápagos has played a central role in the understanding of evolution; what it now offers to teach us about conservation may well prove indispensable for the future of the planet.


Sign in / Sign up

Export Citation Format

Share Document