Nettsider med emneord «climate change»

Publisert 3. mai 2013 11:35

Climate Changes and Zoonotic Epidemiology in Wildlife Systems (ZEWS)

Publisert 1. okt. 2020 10:38

The aim of this thesis is to investigate possibilities for creating digital replicas of urban landscapes and regional characteristics, cities' infrastructure elements (e.g., homes, properties, streets, etc.) to simulate what-if scenarios that show the impact of climate change such as flooding in cities and how they may be managed. Such simulations can be used to determine flooding risks for existing conditions and to evaluate proposed mitigation strategies. The resulting flood resilience model can be used for analysis, simulation, visualization, planning and communication, as well as a better assessment of the socio-economic impact of cities' projects. As part of this thesis, various aspects related to relevant historical and actual data, AI models, and modern data visualization techniques will be investigated.

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Publisert 24. juni 2020 11:16

We studied the effect of changes in sea ice cover, sea temperature, and biomass of prey or predator on the length of polar cod. Our results show a significant negative effect of sea ice cover on length of all age groups of polar cod: Polar cod grow faster when there is less sea ice.

Publisert 16. nov. 2016 10:03
Publisert 10. apr. 2014 10:42

There are, unfortunately, no master projects available at this stage!

The project “Effects of Neonicotinoids and Temperature on Crop Pollination (NEOPOLL)” is a ~4 year Researcher project awarded Anders Nielsen (PI) over the Miljøforsk program at the Norwegian Research Council. The project started in April 2017. There are several master students involved in the project, investigating different aspects of how neonicotinoids affect bumblebee behaviour and colony development, but also more ecotoxicological approaches related to pesticide accumulation in nectar, pollen and bumblebees.

Publisert 18. feb. 2015 16:14

Much of our present knowledge on the ecology and behaviour of animals is derived from longitudinal studies of individuals using long-term datasets. The collection of such datasets requires the ability to identify individuals repeatedly over time, i.e. by individual markings. Here comes the problems for Penguins.

Publisert 9. mai 2017 14:19

Ozone on the ground level causes stress in natural vegetation. When the ozone level increases at the same time as the climate changes, vegetation is being hit by a double punch. This project seeks to find out how this affects the yield and growth.

Publisert 21. mai 2015 10:45

This project aims to understand the dynamics of the plant root microbiome in response to elevated temperatures and altered annual precipitation patterns. 

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Publisert 24. okt. 2019 16:13

Climate warming is changing the timing of among others the reproduction for plankton or fish. Predators depend on an abundant prey supply to feed their young and insure that they survive. When the timing of the prey and the predator are not in synchrony the predator young cannot feed and are dying: there is a mismatch.

Publisert 10. des. 2013 19:55
Publisert 24. mars 2014 23:09

The NEOPOLL project, funded by the Research Council of Norway, is moving. Julie Sørlie Paus-Knudsen has been hired as a PhD student and started December 1th 2017. In addition we have taken on two master students (Pawel Jan Kolano and Malin Aarønes) to work on the project.

Publisert 5. feb. 2016 11:21

A recently paper published in PNAS,  members of the CEES Marine Group explore potential climate effects on Calanus finmarchicus, a key zooplankton species in the North Atlantic. The paper shows how the combination of shallow mixed-layer-depth and increased wind apparently increases chlorophyll biomass in spring, and in turn C. finmarchicus biomass in summer. These findings strongly suggest bottom-up effects of food availability on zooplankton, and highlight the need to consider climate effects “beyond temperature” when projecting zooplankton dynamics under climate change.

Publisert 22. jan. 2016 01:00

Marine phytoplankton contribute nearly 50% to global primary production, support zooplankton production and play a vital role in regulating Carbon sequestration. Phytoplankton productivity fluctuations are caused by various direct and indirect effects of temperature, the balance of which show large-scale geographical patterns. 

Publisert 30. jan. 2015 00:01

Europe and other funding agencies are very attentive to interdisciplinarity and trans-sectoral activities. Their ever growing demand for multi- and trans-disciplinary science is reaching such a level that making Ecology and getting funding for it becomes a challenge. Is there a way around it?

Publisert 26. mai 2011 21:47
Publisert 8. mai 2015 01:00

In this study we assessed the chances of recovery of the Baltic Sea cod stock and conclude that it will never come back to the status it had more than three decades ago and that the economic losses associated to this new baseline amount to 120 million euros per year.

Publisert 26. mai 2011 21:50
Publisert 10. apr. 2014 10:42

There are, unfortunately, no master projects available at this stage!

The project “Effects of Neonicotinoids and Temperature on Crop Pollination (NEOPOLL)” is a ~4 year Researcher project awarded Anders Nielsen (PI) over the Miljøforsk program at the Norwegian Research Council. The project started in April 2017. There are several master students involved in the project, investigating different aspects of how neonicotinoids affect bumblebee behaviour and colony development, but also more ecotoxicological approaches related to pesticide accumulation in nectar, pollen and bumblebees.

Publisert 17. apr. 2015 10:02

Scientists in geodynamics and meteorology from UiO, in collaboration with researchers in geosciences from Bergen, Tromsø and UNIS, received 19.5 million kroner from the Norwegian Research Council (NFR) for a new Research School on “Changing climates in the coupled earth system” (CHESS).

Publisert 22. nov. 2011 23:03

Water availability is expected to be highly sensitive to climate change and severe water stress conditions may cause major social, economic and environmental problems. This requires better knowledge on the drought generating mechanisms, its impacts and mitigation options.

The aim of the DROUGHT-R&SPI project is to improve drought preparedness in Europe through increased knowledge of drought generating processes, drought early warning and management plans, and improved science-policy interfacing.

King penguin chick
Publisert 26. okt. 2020 10:05

Seabirds in Polar Regions are experiencing increasing environmental stress due to climate change and pollution. They also serve as indicator species for changes in the environment. But what do they tell us about how seabird populations are affected by contaminants and climate, and is the situation the same in Antarctica as in the Arctic?

two dell picture symbolysing cold years and warm years withe effect on cod and haddock
Publisert 10. aug. 2020 12:16

In the Boreal-Arctic seas, the two most abundant gadoid fish are the Atlantic cod (Gadus morhua) and the haddock (Melanogrammus aeglefinus). Both tend to respond to climate warming by an abundance increase and a change of distribution. Are these changes affecting how they are interacting? Statistical analysis using a state-space threshold model of acoustic and trawl survey data on cod and haddock abundance indicates that the interaction is changing with sea temperature: the cod negatively affecting the haddock when sea temperature is over 4 °C.

Publisert 13. okt. 2015 11:23

This project explores how climate change and other long-term environmental changes can influence the transport, uptake and food web transfer of mercury in boreal lakes.

Publisert 5. aug. 2014 09:45

Lakes and rivers are the source of drinking water for most people in Norway, Sweden and Finland. Presently, climate change is posing a threat for the quality of drinking water sources. In recent years, concentrations of dissolved organic matter (DOM) in lakes and rivers have increased and associated with this, surface waters have become browner. This poses a major challenge to drinking water providers, as removal of DOM is a key step in drinking water treatment.

Both climate and atmospheric deposition are likely to blame for the brownification of surface waters. Brownification is expected to continue under climate change, but to what extent is unclear. Adaptation measures needed are likely to raise costs of water treatment and require long-term investments. In order to maintain good drinking water quality in the future, municipalities and other stakeholders urgently need science-based projections of raw water quality under climate change as well as information about the possibilities for, and costs of adaptation.

 

Publisert 18. des. 2014 15:47

Increased sea temperature due to climate change can influence the distribution, abundance and seasonal timing of zooplankton. Changing zooplankton dynamics might in turn impact the higher trophic levels, such as fish and seabirds, feeding on these animals. In a recent paper, we show that temperature variation in the Atlantic waters of the Norwegian Sea and Barents Sea might have stronger effects on the abundance of the younger than older development stages of Calanus finmarchicus, and that these stages might appear earlier in spring during warm years.