Cristin-prosjekt-ID: 516711
Sist endret: 1. oktober 2019 08:42

Cristin-prosjekt-ID: 516711
Sist endret: 1. oktober 2019 08:42
Prosjekt

ECOGEN - Ecosystem change and species persistence over time: a genome-based approach

prosjektleder

Inger Greve Alsos
ved UiT Norges arktiske universitet

prosjekteier / koordinerende forskningsansvarlig enhet

  • Norges arktiske universitetsmuseum og akademi for kunstfag ved UiT Norges arktiske universitet

Finansiering

  • TotalbudsjettNOK 30.564
  • Norges forskningsråd
    Prosjektkode: 250963/F20

Klassifisering

Vitenskapsdisipliner

Vegetasjonshistorie

Emneord

DNA

Kategorier

Prosjektkategori

  • Grunnforskning

Kontaktinformasjon

Sted
Inger Greve Alsos

Tidsramme

Aktivt
Start: 1. september 2016 Slutt: 31. august 2021

Beskrivelse Beskrivelse

Tittel

ECOGEN - Ecosystem change and species persistence over time: a genome-based approach

Vitenskapelig sammendrag

 

Main goal

Develop high taxonomic resolution ancient environmental DNA methods in order to evaluate how drivers of change (human, climate, biota) affect species persistence and ecosystem tipping points in arctic-alpine biomes

Subgoals

1) Improve methods for full genome analyses of environmental DNA

2) Compile palaeo data to plan a balanced design of climatic and human impacts

3) Do full genome analyses of lake cores to obtain information on past presence and abundance of vascular plant species and key herbivores

4) Identify biotic drivers and disentangle their effects from human land use and climate change on ecosystem resilience and ecosystem services

5) Estimate species persistence across periods of changes and identify factors causing extinction

6) Provide methods and knowledge to inform species conservation and ecosystem management

Summary

There is great concern about the ability of species and ecosystems to resist both direct human impact and climate changes. Especially in cold alpine and arctic regions, the effect of changing climate is expected to be severe. While much knowledge has been gained from modern ecology and palaeoecology, the possibility to test ecological hypothesis using palaeocological data has been limited by the taxonomic resolution of pollen and scarcity of macrofossils. Recent analyses using state-of-the-art ancient DNA methodology do, however, show great promise in overcoming these limitations and open up the possibility to studying more complete species compositions of past ecosystems. In this project we aim to even further increase the information gained from palaeorecords by developing full genome techniques and quantitative DNA methods for plants and key herbivores, for which we already are compiling full genome DNA reference libraries for the Alps and northern Norway. Additionally, for both of these regions we will develop a balanced sampling design of in total 40 lakes along climate gradients and human-land-use contrasts, informed by the latest archaeological and palaeoecological knowledge and current climate variation. We will analyse environmental DNA data from these lake sediments to provide a first comprehensive assessment of how multiple drivers of ecosystem changes interact to drive ecosystem shifts, tipping points and changes in the provisioning of ecosystem services. Using state-of-the-art techniques to model species distribution, we will address key factors thought to cause time lags in species dispersal and extinction. Combining our knowledge gained from the past with data on current climate, land use and ecosystem characteristics, this project will make predictions of future changes and provide key knowledge for management and conservation priorities.

prosjektdeltakere

prosjektleder

Inger Greve Alsos

  • Tilknyttet:
    Prosjektleder
    ved UiT Norges arktiske universitet

Antony Brown

  • Tilknyttet:
    Prosjektdeltaker
    ved Norges arktiske universitetsmuseum ved UiT Norges arktiske universitet

Youri Lammers

  • Tilknyttet:
    Prosjektdeltaker
    ved Norges arktiske universitetsmuseum ved UiT Norges arktiske universitet

Dilli Prasad Rijal

  • Tilknyttet:
    Prosjektdeltaker
    ved Institutt for arktisk og marin biologi ved UiT Norges arktiske universitet

Kelsey Lorberau

  • Tilknyttet:
    Prosjektdeltaker
    ved Institutt for arktisk og marin biologi ved UiT Norges arktiske universitet
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Resultater Resultater

The importance of the reference library: discovery of unexpected species in ancient sedimentary DNA.

Lammers, Youri; Clarke, Charlotte; Erséus, Christer; Brown, Antony; Sjogren, P; Edwards, Mary Elizabeth; Gielly, Ludovic; Haflidason, Haflidi; Mangerud, Jan; Rota, E mfl.. 2019, IBOL 2019. UIT, UIBVitenskapelig foredrag

Persistent arctic vegetation during periods of rapid climate change - 24,000 years of plant community dynamics in the Polar Urals.

Bjune, Anne Elisabeth; Clarke, Charlotte; Alsos, Inger Greve; Edwards, Mary Elizabeth; Gielly, Ludovic; Haflidason, Haflidi; Mangerud, Jan; Paus, Aage; Svendsen, John-Inge. 2019, INQUA 2019. UIT, UIBVitenskapelig foredrag

Hidden species richness detected in ancient DNA: algae and worms recorded in Pleistocene and Holocene lake sediments.

Lammers, Youri; Clarke, Charlotte; Erséus, Christer; Brown, Antony; Edwards, Mary Elizabeth; Gielly, Ludovic; Haflidason, Haflidi; Mangerud, Jan; Rota, E; Svendsen, John-Inge mfl.. 2019, INQUA 2019. UIT, UIBVitenskapelig foredrag

Arctic-alpine plants survived past forest expansion: a 24,000-year ancient DNA record from the Polar Urals.

Clarke, Charlotte; Edwards, Mary Elizabeth; Gielly, L; Hughes, Paul D.M.; Ehrich, Dorothee; Morozova, L; Haflidason, Haflidi; Mangerud, Jan; Svendsen, John-Inge; Alsos, Inger Greve. 2019, INQUA 2019. UIT, UIBVitenskapelig foredrag

Hidden species richness detected in ancient DNA: algae and worms recorded in Pleistocene and Holocene lake sediments.

Lammers, Youri; Clarke, Charlotte; Heintzman, Peter D.; Erséus, Christer; Brown, Antony; Sjogren, Per; Edwards, Mary Elizabeth; Gielly, Ludovic; Haflidason, Haflidi; Mangerud, Jan mfl.. 2019, 20th International Union for Quaternary Research (INQUA). UIT, UIBVitenskapelig foredrag
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