9 Works

Data from: Co-inheritance of sea age at maturity and iteroparity in the Atlantic salmon vgll3 genomic region

Tutku Aykanat, Mikhail Ozerov, Juha-Pekka Vähä, Panu Orell, Eero Niemelä, Jaakko Erkinaro & Craig R Primmer
Co-inheritance in life history traits may result in unpredictable evolutionary trajectories if not accounted for in life-history models. Iteroparity (the reproductive strategy of reproducing more than once) in Atlantic salmon (Salmo salar) is a fitness trait with substantial variation within and among populations. In the Teno River in northern Europe, iteroparous individuals constitute an important component of many populations and have experienced a sharp increase in abundance in the last 20 years, partly overlapping with...

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

Hannu Pöysä
Dependence on climate-driven environmental cues in the initiation of life cycle stages is a critical attribute when assessing vulnerability of species to climate change impacts. This study focused on spring ice phenology as a cue to the settling of migratory waterbirds, asking whether there is an asynchrony between ice phenology and setting phenology that could affect breeding success of six species with divergent population trends. In the 37 study lakes in southeastern Finland, the ice-out...

Data from \"Removal of grazers alters the response of tundra soil carbon to warming and enhanced nitrogen availability\", Ecological Monograps in October 2019

Henni Ylänne, Elina Kaarlejärvi, Maria Väisänen, Minna K Männistö, Saija H. K. Ahonen, Johan Olofsson & Sari Stark
Here we present the data used in the manuscript "Removal of grazers alters the response of tundra soil carbon to warming and enhanced nitrogen availability", Ecological Monograps, Early view in October 2019 by H. Ylänne, E. Kaarlejärvi, M. Väisänen, M. K. Männistö, S. H. K. Ahonen, J. Olofsson & S. Stark. In this paper we studied, how five years of experimental warming and increased soil nitrogen availability interact with both long- and short-term differences in...

Seedling traits from root to shoot exhibit genetic diversity and distinct responses to environmental heterogeneity within a tree population

Matti J. Salmela, Sannakajsa M. Velmala & Taina Pennanen
Phenotypic diversity within plant species is crucial to shaping evolutionary responses of populations and interactions among species, yet intraspecific genetic variability notably in roots has attracted little attention. Further, evidence for the root−shoot trait synchronisation remains inconclusive, narrowing our understanding of the role that belowground traits play in local adaptation. We applied broad 'top-to-toe' phenotyping to a model system whose native environmental conditions were simulated in experimental settings. Fifteen maternal families of Norway spruce Picea...

Data from: Night reveals individuality in a shoaling fish

Laura Härkönen, Nico Alioravainen, Anssi Vainikka & Pekka Hyvärinen
Many animals rely heavily on visual cues from their environment, and therefore show circadian rhythmicity in their behavioral activities. In group-living animals, individuals’ activity rhythms must be synchronized not only with diel light-dark cycle but also with other group members. Increasing evidence has recently shown that circadian behaviors of animals are consistent within individuals and different between individuals, but the sources and consistency of diel activity variation in social context are less known. Using radio...

Host plant phenology, insect outbreaks and herbivore communities – The importance of timing

Adam Ekholm, Ayco J. M. Tack, Pertti Pulkkinen & Tomas Roslin
1. Climate change may alter the dynamics of outbreak species by changing the phenological synchrony between herbivores and their host plants. As host plant phenology has a genotypic component that may interact with climate, infestation levels among genotypes might change accordingly. When the outbreaking herbivore is active early in the season, its infestation levels may also leave a detectable imprint on herbivores colonizing the plant later in the season. 2. In this study, we first...

Data from: Stabilizing selection and adaptive evolution in a combination of two traits in an arctic ungulate

Håkon Holand, Thomas Kvalnes, Knut Røed, Øystein Holand, Bernt-Erik Sæther & Jouko Kumpula
Stabilizing selection is thought to be common in wild populations and act as one of the main evolutionary mechanisms which constrain phenotypic variation. When multiple traits interact to create a combined phenotype, correlational selection may be an important process driving adaptive evolution. Here we report on phenotypic selection and evolutionary changes in two natal traits in a semi-domestic population of reindeer (Rangifer tarandus) in northern Finland. The population has been closely monitored since 1969, and...

Data from: Home ground advantage: local Atlantic salmon have higher reproductive fitness than dispersers in the wild

Kenyon B. Mobley, Hanna Granroth-Wilding, Mikko Ellmen, Juha-Pekka Vähä, Tutku Aykanat, Susan E. Johnston, Panu Orell, Jaakko Erkinaro & Craig R. Primmer
A long-held, but poorly tested, assumption in natural populations is that individuals that disperse into new areas for reproduction are at a disadvantage compared to individuals that reproduce in their natal habitat, underpinning the eco-evolutionary processes of local adaptation and ecological speciation. Here, we capitalize on fine-scale population structure and natural dispersal events to compare the reproductive success of local and dispersing individuals captured on the same spawning ground in four consecutive parent-offspring cohorts of...

Data from: Rearing background and exposure environment together explain higher survival of aquaculture fish during a bacterial outbreak

Ville Räihä, Lotta-Riina Sundberg, Roghaieh Ashrafi, Pekka Hyvärinen & Anssi Karvonen
1. Parasitic diseases represent one of the greatest challenges for aquaculture worldwide and there is an increasing emphasis on ecological solutions to prevent infections. One proposed solution is enriched rearing, where traditional stimulus-poor rearing tanks are equipped with different types of structures to increase habitat complexity. Such spatial enrichment is known to increase survival of fish during parasite epidemics, but the underlying mechanisms are still unclear. 2. We studied whether enriched rearing affected infection of...

Registration Year

  • 2019

Resource Types

  • Dataset


  • Natural Resources Institute Finland
  • University of Helsinki
  • University of Oulu
  • University of Turku
  • University of Eastern Finland
  • Lund University
  • University of Edinburgh
  • Swedish University of Agricultural Sciences
  • Uppsala University
  • Norwegian University of Life Sciences