Essays about: "early-Holocene"

Showing result 1 - 5 of 14 essays containing the word early-Holocene.

  1. 1. Evidence for birch forests and a highly productive environment near the margin of the Fennoscandian ice sheet in the Värriötunturit area, northeastern Finland

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Fredrik Bogren; [2019]
    Keywords : Early Holocene; productive ice-marginal environment; subarctic birch forests; plant macrofossils; pollen; palaeoenvironmental reconstructions; palaeoclimate reconstructions; Värriötunturit; Kuutsjärvi; northeastern Finland; northern Fennoscandia;

    Abstract : High-resolution records of early Holocene deposits are rare, and as a consequence reconstruction of terrestrial environments very soon after the deglaciation has often been difficult. In this study the palaeoenvironmental conditions of early Holocene (c. 10600-7500 cal. READ MORE

  2. 2. PLANT MIGRATION AT THE END OF THE WEICHSELIAN GLACIATION : Macrofossil evidence of early coniferous trees at two northern Swedish sites

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Karan Zakrzewski-Sharma; [2019]
    Keywords : Scandinavia; Weichselian; plant migration; macrofossils; climate change;

    Abstract : Studies of vegetation history bring a new incentive to our understanding of plant survival and migration in arctic environments. For decades, environmental research was based on palynological data and these studies created a notion that tree species such as larch (Larix sibirica) and Scots pine (Pinus sylvestris) did not grow in northern Scandinavia at the end of Weichselian glaciation. READ MORE

  3. 3. Glacial history of the upper Drac Blanc catchment (French Alps)

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Felix Martin Hofmann; [2018]
    Keywords : Physical Geography; 10Be exposure dating; structure-from motion; geomorphological mapping; moraine; equilibrium line altitude; Alps; Earth and Environmental Sciences;

    Abstract : Glacier advances in the Écrins massif (French Alps) during the Late Glacial and the Early Holocene are poorly constrained. Based on field observations, a high-resolution digital elevation model and an orthophoto, glacial landforms in the upper Drac Blanc catchment were mapped. READ MORE

  4. 4. Cryptic refugia vs. Tabula Rasa: Boreal trees in glacial Fennoscandia : Plant growth during the Weichselian glaciation and the early Holocene in northern Europe

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Anne van Woerkom; [2016]
    Keywords : boreal trees; Fennoscandia; cryptic refugia; Weichselian; glacial survival;

    Abstract : Recent studies applying innovative technologies, such as genetic analysis and carbon dating, contradict the palynological based assumption that Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) vanished from Fennoscandia during the Last Glacial Maximum (c. 20.000 yrs BP) and re-colonized after the cold Younger Dryas (c. 12. READ MORE

  5. 5. An Optimal Foraging Perspective on Early Holocene Human Prey Choice on Gotland : Affluence or Starvation?

    University essay from Högskolan på Gotland/Institutionen för kultur, energi och miljö

    Author : Ingegärd Enander Malmros; [2012]
    Keywords : Gotland; grey seal; Holocene; hunter-gatherer; Mesolithic; Optimal Foraging Theory; OFT; 8.2 ka BP cold event; Zen Road;

    Abstract : The Optimal Foraging Theory, rooted in the processual archaeology, uses a measuring methodology where the foraging strategy that gives the highest payoff measured as the highest ratio of energy gain per time unit is analysed (Mac Arthur & Pianca 1966, Emlen 1966). The theory is a branch of evolutionary ecology why much attention is paid to the interdependence of humans and preys and environmental conditions caused by climatologically and geographical changes or by overexploitation or other changes caused by humans. READ MORE