Department News

Forest and watercourse interplay important for restorations

2016-08-24
Humans utilise forests and watercourses in a way that depletes ecosystem habitats, biodiversity and ecosystem services. Many areas are restored to break the trend, but to succeed you need to consider not only the ecosystem in mind, but also surrounding ecosystems. This according to researchers in Um...

Invasive waterflea can change ecosystems in the Bothnian Bay

2016-07-06
The highly bioinvasive water flea, Cercopagis pengoi, has spread from the Caspian Sea to greater parts of the Baltic Sea. In the Bothnian Bay, it seems to meet a barrier in the area between the Bothnian Sea and the Bothnian Bay. Climate change can lead to the barrier of northward spreading is torn d...

Less fish in the future Baltic Sea

2016-06-27
In the northern parts of the Baltic Sea both precipitation and river discharge are expected to increase as a result of climate changes. The increased river discharge will lead to a higher inflow of river-borne dissolved organic matter to the coastal zone, which in turn will promote bacterial product...

Ecosystems with many and similar species can handle tougher environmental disturbances

2016-05-25
How sensitive an ecosystem is to unforeseen environmental stress can be determined, according to Daniel Bruno, previous visiting researcher at Umeå University. The approach is to study how many species there are in an ecosystem and what proportion of these can replace species that are hard hit by en...

Underestimated production on shallow bottoms

2016-05-24
Microalgae growing on sea bottoms in shallow areas have a significant role in the marine ecosystem. A group of EcoChange researchers have studied their contribution to primary production in the northern part of the Baltic Sea, and have received results which show that earlier studies have underestim...

Do fish survive in streams in winter?

2016-04-22
Most stream-resident fish stay throughout winter despite the ice. This has been shown by Christine Weber, previous researcher at Umeå University, by tagging trout and sculpins with transponders to follow fish migration. Fish’s general state of health is the single most important factor for surviving...

Bacteria – lead players in the Baltic Sea

2016-04-14
Bacterioplankton are lead players in the Baltic Sea ecosystem. Climate changes will lead to a promotion of bacteria, especially in the northern parts. This will have a major impact on the Baltic Sea ecosystem. Ecochange researcher Daniela Figueroa has looked deep into the role of bacterioplankton in...

Restoring ecosystems – how to learn from our mistakes

2016-04-08
In a joint North European and North American study led by Umeå researcher Christer Nilsson, a warning is issued of underdocumented results of ecological restorations. The researchers show that continuous and systematic evaluations of cost-efficiency, planning, implementations and effects are necessa...

Will we ever talk to aliens?

2016-02-08
Professor Charles Cockell from Edinburgh University will visit Umeå’s Observatory Umevatoriet and Umeå University with two lectures on the search for life in Universe. The lectures form the start of a series of events on the space theme in Umeå aimed at children and adults alike.

Coastal bacteria thrive on river water

2016-02-04
Large amounts of dissolved carbon discharged in river waters enable bacteria to thrive in the northernmost part of the Baltic. In the coastal zone bacteria dominate the base of the food web, instead of the normally prevalent phytoplankton. Increases in the dissolved carbon discharges can lead to a l...

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Page Editor: Elisabet Carlborg
2008-10-29

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