Irja Ida Ratikainen
Background and activities
About me
I am a researcher at the Centre for Biodiversity Dynamics (CBD). I have a wide field of interest within behavioural and evolutionary ecology.
I work both empirically and theoretically to answer questions about how organisms adapt to variable and unpredictable environments. When we improve our understanding of how animals and plants adapt to variable environments we will also be better able to predict how they will cope with a changing environment in the future.
I am listed among NTNUs expert lists for journalists, and I am happy to answer questions from journalists or others.
Teaching
I am responsible for the course Nature, Environment and Sustainability (BI2081) If you have any questions regarding this course you are welcome to send me an email.
Courses
- BI3081 - Scientific Seminars
- BI2081 - Nature, Environment and Sustainability
- RFEL3080 - Scientific Research Seminar in Natural Resource Management
Scientific, academic and artistic work
Displaying a selection of activities. See all publications in the database
Journal publications
- (2017) Differential allocation revisited: When should mate quality affect parental investment?. The American Naturalist. vol. 190 (4).
- (2013) Sex ratio and density affect sexual seleciton in a sex-role reversed fish. Evolution. vol. 67 (11).
- (2013) Adaptive management of body mass by Siberian jays. Animal Behaviour. vol. 85 (2).
- (2012) Private and public information use strategies by foraging groups of wild Siberian jays. Animal Behaviour. vol. 83 (5).
- (2011) Inertia: the discrepancy between individual and common good in dispersal and prospecting behaviour. Biological Reviews. vol. 86 (3).
- (2010) Differential allocation and compensation: who deserves the silver spoon?. Behavioral Ecology. vol. 21 (1).
- (2010) Social class influences degree of variance sensitivity in wild Siberian jays. Behavioral Ecology. vol. 21 (5).
- (2008) When density dependence is not instantaneous: theoretical developments and management implications. Ecology Letters. vol. 11.
- (2007) Use of winter habitat by roe deer at a northern latitude where Eurasian lynx are present. Journal of Zoology. vol. 273.