Keith Bennett
University of St Andrews
Publications 108
#1Kevin J. Edwards (Aberd.: University of Aberdeen)H-Index: 32
#2Keith Bennett (St And: University of St Andrews)H-Index: 38
Last.Althea Davies (St And: University of St Andrews)H-Index: 16
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Palaeoecology has been prominent in studies of environmental change during the Holocene epoch in Scotland. These studies have been dominated by palynology (pollen, spore and related bio-and litho-stratigraphic analyses) as a key approach to multi- and inter-disciplinary investigations of topics such as vegetation, climate and landscape change. This paper highlights some key dimensions of the pollen- and vegetation-based archive, with a focus upon woodland dynamics, blanket peat, human impacts, b...
1 CitationsSource
#1Julia D. Sigwart (University of California, Berkeley)H-Index: 16
#2Keith Bennett (St And: University of St Andrews)H-Index: 38
Last.Norine W. Yeung (Bishop Museum)H-Index: 6
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How biodiversity is changing in our time represents a major concern for all organismal biologists. Anthropogenic changes to our planet are decreasing species diversity through the negative effects of pollution, habitat destruction, direct extirpation of species, and climate change. But major biotic changes – including those that have both increased and decreased species diversity – have happened before in Earth’s history. Biodiversity dynamics in past eras provide important context to understand...
1 CitationsSource
#1Julia D. Sigwart (University of California, Berkeley)H-Index: 16
#2Mark D. Sutton (Imperial College London)H-Index: 28
Last.Keith Bennett (St And: University of St Andrews)H-Index: 38
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This research was supported by the European Union’s Horizon 2020 Research and Innovation Programme (grant agreement no. H2020-MSCA-IF-2014-655661 to JDS).
5 CitationsSource
#1Maarten Blaauw ('QUB': Queen's University Belfast)H-Index: 37
#2J. Andrés Christen (CIMAT: Centro de Investigación en Matemáticas)H-Index: 13
Last.Paula J. Reimer ('QUB': Queen's University Belfast)H-Index: 40
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Abstract Reliable chronologies are essential for most Quaternary studies, but little is known about how age-depth model choice, as well as dating density and quality, affect the precision and accuracy of chronologies. A meta-analysis suggests that most existing late-Quaternary studies contain fewer than one date per millennium, and provide millennial-scale precision at best. We use existing and simulated sediment cores to estimate what dating density and quality are required to obtain accurate c...
12 CitationsSource
#1Laura Parducci (Uppsala University)H-Index: 15
#2Keith Bennett ('QUB': Queen's University Belfast)H-Index: 38
2 CitationsSource
#1Laura Parducci (Uppsala University)H-Index: 15
#2Keith Bennett (St And: University of St Andrews)H-Index: 38
Last.Mikkel Winther Pedersen (Wild Center)H-Index: 7
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Contents 'Summary' 924 I. 'Introduction' 925 II. 'Environmental and temporal limits for survival of aDNA' 925 III. 'Lake sediments' 927 IV. 'Perspective for plant aDNA research' 929 V. 'Sources of pollen, macrofossils and DNA' 930 VI. 'Pollen DNA' 930 VII. 'Sedimentary aDNA' 931 VIII. 'Recent key findings and future methods using HTS techniques' 933 IX. 'Challenges when studying aDNA from lake sediments' 935 X. 'Bioinformatic processing' 936 XI. 'Conclusions and directions for future research' 9...
45 CitationsSource
#1Keith Bennett (St And: University of St Andrews)H-Index: 38
#2Caitlin E. Buck (University of Sheffield)H-Index: 33
The pattern of ancient sediment accumulation in lake basins is usually determined for the sole purpose of obtaining a chronology of the sequence. We develop graphical representations of lake basins and how they fill with sediment in order to make generalisations about sediment patterns which can be used to distinguish those that relate to an aspect of changing environment from those that relate solely to the shape of the basin itself. Our goal is general observations that could lead to more robu...
9 CitationsSource
#1Andrea Klimaschewski ('QUB': Queen's University Belfast)H-Index: 5
#2Lena Barnekow (Lund University)H-Index: 18
Last.Dan Hammarlund (Lund University)H-Index: 32
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High resolution palaeoenvironmental records in Far-Eastern Russia are rare, and the Kamchatka Peninsula is among the least studied areas of the region. This paper describes a record spanning the last ca. 11,000 yr, obtained from a bog in the southern part of Kamchatka. The radiocarbon dated core was analysed for pollen, testate amoebae, charcoal and loss-on-ignition (LOI). The vegetation during the early Holocene was dominated by grasses (Poaceae), birch (Betula) and heath (Ericaceae p. p.). Aro...
5 CitationsSource
#1Elinor Andrén (SH: Södertörn University)H-Index: 15
#2Andrea Klimaschewski ('QUB': Queen's University Belfast)H-Index: 5
Last.Dan Hammarlund (Lund University)H-Index: 32
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A sediment record from a small lake in the north-eastern part of the Kamchatka Peninsula has been investigated in a multi-proxy study to gain knowledge of Holocene climatic and environmental change. Pollen, diatoms, chironomids and selected geochemical parameters were analysed and the sediment record was dated with radiocarbon. The study shows Holocene changes in the terrestrial vegetation as well as responses of the lake ecosystern to catchment maturity and multiple stressors, such as climate c...
14 CitationsSource
#1Keith Bennett (Uppsala University)H-Index: 38
Smith et al. (Reports, 27 February 2015, p. 998) identify wheat DNA from an 8000-calendar-years-before-the-present archaeological site in southern England and conclude that wheat was traded to Britain 2000 years before the arrival of agriculture. The DNA samples are not dated, either directly or from circumstantial evidence, so there is no chronological evidence to support the claim.
7 CitationsSource