Ann-Kristin Bergström

Contact Information

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Position:

Senior lecturer

personbild

Works at:

Ecology and Environmental Sciences

Address:

Umeå universitet
SE-901 87 Umeå
Sverige

Visiting Address:

KB. H3, Linnaeus väg 6, Umeå, A3.38.21

Tel:

+46 90 786 95 44

Mobile Phone:

+46 70 274 77 34

Email:

ann-kristin.bergstrom@umu.seEmail 2

ann-kristin.bergstrom@emg.umu.seEmail 1

Lync:

Get in touch via Lync

Web Page:

http://www.emg.umu.se/english/about-the-department/staff/bergstrom-ann-kristin Web Page
http://www.emg.umu.se/om-institutionen/personal/bergstrom-ann-kristin Web Page

Research

Special focus within my research lies within studying the importance of organic matter (humic substances) and nutrients (nitrogen and phosphorus) for lake ecosystem productivity and food web structure. My current research projects concerns how global climate change are affecting lake water biogeochemistry, and what possible impacts these biogeochemical changes have on lake productivity and the ecosystem services of northern pristine lakes. We assess how nutrient availability and the N:P stoichiometry in lakes are affected by changes in atmospheric nitrogen deposition and by warming, and its effects on nutrient limitation of phytoplankton and zooplankton, nutrient regeneration and trophic transfer efficiencies, and productivity in northern boreal and subarctic lakes.

External homepage of Climate Impacts Research Center, CIRC

Publications

Author

Title

Year sorteringsordning

Fulltext

Deininger, Anne
Faithfull, Carolyn L.
Karlsson, Jan; et al.

Pelagic food web response to whole lake N fertilization
Limnology and Oceanography

2017

-

Deininger, Anne
Faithfull, Carolyn L.
Bergström, Ann-Kristin

Phytoplankton response to whole lake inorganic N fertilization along a gradient in dissolved organic carbon
Ecology, 98(4): 982-994

2017

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Myrstener, Maria
Jonsson, Anders
Bergström, Ann-Kristin

The effects of temperature and resource availability on denitrification and relative N2O production in boreal lake sediments
Journal of Environmental Sciences(China), 47: 82-90

2016

-

Karlsson, Jan
Bergström, Ann-Kristin
Byström, Pär; et al.

Terrestrial organic matter input suppresses biomass production in lake ecosystems
Ecology, 96(11): 2870-2876

2015

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Berggren, Martin
Sponseller, Ryan A.
Soares, Ana R. Alves; et al.

Toward an ecologically meaningful view of resource stoichiometry in DOM-dominated aquatic systems
Journal of Plankton Research, 37(3): 489-499

2015

Download

Seekell, David A.
Lapierre, Jean-Francois
Ask, Jenny; et al.

The influence of dissolved organic carbon on primary production in northern lakes
Limnology and Oceanography, 60(4): 1276-1285

2015

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Faithfull, Carolyn L.
Mathisen, Peter
Wenzel, Anja; et al.

Food web efficiency differs between humic and clear water lake communities in response to nutrients and light
Oecologia, 177(3): 823-835

2015

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Bergström, Ann-Kristin
Karlsson, Daniel
Karlsson, Jan; et al.

N-limited consumer growth and low nutrient regeneration N:P ratios in lakes with low N deposition
Ecosphere, 6(1)

2015

Download

Bergström, Ann-Kristin
Faithfull Mathisen, Carolyn
Karlsson, Daniel; et al.

Nitrogen deposition and warming  – effects on phytoplankton nutrient limitation in subarctic lakes
Global Change Biology, 19(8): 2557-2568

2013

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Wenzel, Anja
Bergström, Ann-Kristin
Jansson, Mats; et al.

Survival, growth and reproduction of Daphnia galeata feeding on single and mixed Pseudomonas and Rhodomonas diets
Freshwater Biology, 57(4): 835-846

2012

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