A5026466407- Geology and Paleoclimatology Research
- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Isotope Analysis in Ecology
- Superconducting Materials and Applications
- Pleistocene-Era Hominins and Archaeology
- Species Distribution and Climate Change
- Freshwater macroinvertebrate diversity and ecology
- Plant and animal studies
- Fossil Insects in Amber
- Geological formations and processes
- Lepidoptera: Biology and Taxonomy
- Tree-ring climate responses
- Archaeology and ancient environmental studies
- Aquatic Invertebrate Ecology and Behavior
- Hymenoptera taxonomy and phylogeny
- Evolution and Paleontology Studies
- Fish Ecology and Management Studies
- Particle Detector Development and Performance
- Neutrino Physics Research
- Ecology and Vegetation Dynamics Studies
- Climate change and permafrost
- Electric Motor Design and Analysis
- Particle physics theoretical and experimental studies
- Marine and environmental studies
Natural History Museum
2015-2024
Brookhaven National Laboratory
2015-2024
Heidelberg University
2024
University of Nebraska–Lincoln
2022
German Oceanographic Museum
2014-2021
Thomas Jefferson National Accelerator Facility
2021
Cornell University
2018-2020
University College London
2005-2019
University of Windsor
1991-2018
Brookhaven College
2017
Fifty-five paleolimnological records from lakes in the circumpolar Arctic reveal widespread species changes and ecological reorganizations algae invertebrate communities since approximately anno Domini 1850. The remoteness of these sites, coupled with characteristics taxa involved, indicate that are primarily driven by climate warming through lengthening summer growing season related limnological changes. distribution similar character opportunity to study arctic ecosystems unaffected human...
A comprehensive database of paleoclimate records is needed to place recent warming into the longer-term context natural climate variability. We present a global compilation quality-controlled, published, temperature-sensitive proxy extending back 12,000 years through Holocene. Data were compiled from 679 sites where time series cover at least 4000 years, are resolved sub-millennial scale (median spacing 400 or finer) and have one age control point every 3000 with cut-off values slackened in...
Summary Priority question exercises are becoming an increasingly common tool to frame future agendas in conservation and ecological science. They effective way identify research foci that advance the field also have high policy relevance. To date, there has been no coherent synthesis of key questions priority areas for palaeoecology, which combines biological, geochemical molecular techniques order reconstruct past environmental systems on time‐scales from decades millions years. We adapted...
This paper presents the first chironomid-inferred mean July air temperature reconstruction for Late-glacial in Britain. The suggests that thermal maximum occurred early interstadial, with temperatures reaching about 12°C. There was then a gradual downward trend to 11°C, punctuated by four distinct cold oscillations of varying intensity. At beginning Younger Dryas, fell 7.5°C but gradually increased 9°C before rapid rise at onset Holocene. curve agrees closely, both general trends and detail,...
1. In the absence of historical water chemistry data, predictive biological indicator groups preserved in lake sediments can be employed to reconstruct history eutrophication. Diatoms are well established this role, but augment diatom‐based inferences nutrient status we investigate potential use chironomid midges (Insecta: Chironomidae). 2. Canonical correspondence analysis (CCA) modern assemblages surface from 44 lakes English Midlands and Wales, U.K., shows that five environmental...
Abstract. We present a systematic compilation of previously published Holocene proxy climate records from the Arctic. identified 170 sites north 58° N latitude where time series extend back at least to 6 cal ka (all ages in this article are calendar years before – BP), resolved submillennial scale (at one value every 400 ± 200 years) and have age models constrained by 3000 years. In addition conventional metadata for each record (location, type, reference), we include two novel parameters...
Natural history collections (NHCs) are an important source of the long-term data needed to understand how biota respond ongoing anthropogenic climate change.These include taxon occurrence for ecological modeling, as well information that can be used reconstruct mechanisms through which changing climates.The full potential NHCs change research cannot fully realized until high-quality sets conveniently accessible research, but this requires higher priority placed on digitizing holdings most...
Abstract Extensive habitat destruction and pollution have caused dramatic declines in aquatic biodiversity at local to global scales. In rivers, the reintroduction of large woody debris is a common method aimed restoring degraded ecosystems through “rewilding.” However, causal evidence for its effectiveness lacking due dearth replicated before–after control‐impact field experiments. We conducted first experiment rewilding across multiple rivers organisational levels, from individual target...
Lateglacial and early-Holocene mean July air temperatures have been reconstructed, using a chironomid-based inference model, from lake-sediment sequences Abernethy Forest, in the eastern Highlands of Scotland, Loch Ashik, on Isle Skye north-west Scotland. Chronology for Forest was derived radiocarbon dates terrestrial plant macrofossils deposited lake sediments. Ashik tephra layers known ages, first age-depth model this kind. Chironomid-inferred peak early Interstadial then gradually decline...
Abstract The emerging tephrostratigraphy of NW Europe spanning the last termination (ca. 15–9 ka) provides potential for synchronizing marine, ice‐core and terrestrial records, but is currently compromised by stratigraphic complications, geochemical ambiguity imprecise age estimates some layers. Here we present new tephrostratigraphic, radiocarbon chironomid‐based palaeotemperature data from Abernethy Forest, Scotland, that refine ages positions Borrobol Penifiler tephras. Tephra...
Late glacial and early Holocene summer temperatures were reconstructed based on fossil chironomid assemblages at Lake Brazi (Retezat Mountains) with a joint Norwegian"Swiss transfer function, providing an important addition to the late quantitative climate reconstructions from Europe. The pattern of temperature changes in show both similarities some differences NGRIP δ 18 O record other European chironomid-based reconstructions. Our reconstruction indicates that (1740 m a.s.l.) air increased...