Hannu Pöysä

Visiting Specialist
  • Phone number +358295327401
  • Email address ext.hannu.poysa@luke.fi
  • Address Yliopistokatu 6 B 80100 JOENSUU

Costs of personality: bold incubating goldeneye females risk their lives when a predator attacks

Refereed scientific publications
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2025

Climate change and nest predation affect shifts in timing and duration of breeding as well as reproductive success in a migratory species

Refereed scientific publications
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2025

Anthropogenic bottom-up and top-down impacts on boreal breeding waterbirds

Refereed scientific publications
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2024

Nest predation and climate change as drivers of alternative reproductive tactics in a migratory species

Refereed scientific publications
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2024

Balancing between predation risk and food by boreal breeding ducks

Refereed scientific publications
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2024

When good turns to bad and alien predators appear: The dynamics of biodiversity change in boreal waterbird communities

Refereed scientific publications
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2023

Impacts of climate‐driven changes in habitat phenology on dynamics of niche overlaps and spatial associations in a boreal waterbird community

Refereed scientific publications
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2023

A rapid increase of large-sized waterfowl does not explain the population declines of small-sized waterbird at their breeding sites

Refereed scientific publications
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2022

Local variation in the timing and advancement of lake ice breakup and impacts on settling dynamics in a migratory waterbird

Refereed scientific publications
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2022

Shifts in fine‐scale distribution and breeding success of boreal waterbirds along gradients in ice‐out timing and habitat structure

Refereed scientific publications
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2021

Seasonal and diel activity patterns of the endangered taiga bean goose (Anser fabalis fabalis) during the breeding season, monitored with camera traps

Refereed scientific publications
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2021

Extending temporal baseline increases understanding of biodiversity change in European boreal waterbird communities

Refereed scientific publications
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2021

Plasticity in timing of avian breeding in response to spring temperature differs between early and late nesting species

Refereed scientific publications
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2021

Eurasian Wigeon Mareca penelope

Other publications
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2020

Garganey Spatula querquedula

Other publications
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2020

Common Goldeneye Bucephala clangula

Other publications
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2020

Invertebrates are declining in boreal aquatic habitat: The effect of brownification?

Refereed scientific publications
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2020

Population change in breeding boreal waterbirds in a 25‐year perspective: What characterises winners and losers?

Refereed scientific publications
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2020

Tracking ice phenology by migratory waterbirds: settling phenology and breeding success of species with divergent population trends

Refereed scientific publications
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2019

Breeding sex ratios in two declining diving duck species: between-year variation and changes over six decades

Refereed scientific publications
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2019

Changes in species richness and composition of boreal waterbird communities: a comparison between two time periods 25 years apart

Refereed scientific publications
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2019

Collapse of a protector species drives secondary endangerment in waterbird communities

Refereed scientific publications
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2019

Estimating production in ducks: a comparison between ground surveys and unmanned aircraft surveys

Refereed scientific publications
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2018

Associations between duck harvest, hunting wing ratios and measures of reproductive output in Northern Europe

Refereed scientific publications
|
2018