Publications by authors named "Alice M Milner"

The extent of vegetation openness in past European landscapes is widely debated. In particular, the temperate forest biome has traditionally been defined as dense, closed-canopy forest; however, some argue that large herbivores maintained greater openness or even wood-pasture conditions. Here, we address this question for the Last Interglacial period (129,000-116,000 years ago), before -linked megafauna declines and anthropogenic landscape transformation.

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Article Synopsis
  • Concerns are rising about the survival of Mediterranean forests due to upcoming droughts linked to climate change.
  • Researchers examined pollen and geochemical records from Greece to understand how these forests have reacted to climate conditions over the past 500,000 years.
  • Their findings suggest that rising atmospheric CO2 levels may lead to reduced moisture, potentially causing sudden shifts from forest to steppe ecosystems, which indicates a risk of forest loss in the Mediterranean.
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Naturally accumulating archives, such as lake sediments and wetland peats, in remote areas may be used to identify the scale and rates of atmospherically deposited pollutant inputs to natural ecosystems. Co-located lake sediment and wetland cores were collected from Letšeng-la Letsie, a remote lake in the Maloti Mountains of southern Lesotho. The cores were radiometrically dated and analysed for a suite of contaminants including trace metals and metalloids (Hg, Pb, Cu, Ni, Zn, As), fly-ash particles, stable nitrogen isotopes, polycyclic aromatic hydrocarbons (PAHs) and persistent organic pollutants such as polychlorinated biphenyls (PCBs), polybrominated flame retardants (PBDEs) and hexachlorobenzene (HCB).

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