8 Works

Data from: Within-season variation in sexual selection in a fish with dynamic sex roles

Sebastian Wacker, Trond Amundsen, Elisabet Forsgren & Kenyon B. Mobley
The strength of sexual selection may vary between species, among populations, and within populations over time. While there is growing evidence that sexual selection may vary between years, less is known about variation in sexual selection within a season. Here, we investigate within-season variation in sexual selection in male two-spotted gobies (Gobiusculus flavescens). This marine fish experiences a seasonal change in the operational sex ratio from male- to female-biased, resulting in a dramatic decrease in...

Data from: Community-wide mesocarnivore response to partial ungulate migration

John-André Henden, Audun Stien, Bård-Jørgen Bårdsen, Nigel G. Yoccoz & Rolf A. Ims
Mesocarnivores increase in number and geographic range in human-disturbed ecosystems with cascading negative impact on biodiversity. To mitigate such impacts it is essential to identify the proximate causes of such mesocarnivore releases. Here we assess to what extent increased partial migration in semi-domesticated tundra reindeer induce a response in boreal and arctic mesocarnivores. We used a large-scale and multi-year quasi-experimental study design with camera traps deployed on coastal tundra peninsulas in northern Norway to estimate...

Data from: Spatial and temporal genetic structure of a river-resident Atlantic salmon (Salmo salar) after millennia of isolation

Odd Terje Sandlund, Sten Karlsson, Eva B. Thorstad, Ole Kristian Berg, Matthew P. Kent, Ine C. J. Norum & Kjetil Hindar
The river-resident Salmo salar (“småblank”) has been isolated from other Atlantic salmon populations for 9,500 years in upper River Namsen, Norway. This is the only European Atlantic salmon population accomplishing its entire life cycle in a river. Hydropower development during the last six decades has introduced movement barriers and changed more than 50% of the river habitat to lentic conditions. Based on microsatellites and SNPs, genetic variation within småblank was only about 50% of that...

Data from: Complementarity of statistical treatments to reconstruct worldwide routes of invasion: the case of the Asian ladybird Harmonia axyridis

Eric Lombaert, Thomas Guillemaud, Jonathan Lundgren, Robert Koch, Benoît Facon, Audrey Grez, Antoon Loomans, Thibaut Malausa, Oldrich Nedved, Emma Rhule, Arnstein Staverlokk, Tove Steenberg & Arnaud Estoup
Inferences about introduction histories of invasive species remain challenging because of the stochastic demographic processes involved. Approximate Bayesian computation (ABC) can help to overcome these problems, but such method requires a prior understanding of population structure over the study area, necessitating the use of alternative methods and an intense sampling design. In this study, we made inferences about the worldwide invasion history of the ladybird Harmonia axyridis by various population genetics statistical methods, using a...

Data from: Assessing risks of invasion through gamete performance: farm Atlantic salmon sperm and eggs show equivalence in function, fertility, compatibility and competitiveness to wild Atlantic salmon

Sarah E. Yeates, Sigurd Einum, William V. Holt, Ian A. Fleming & Matthew J. G. Gage
Adaptations at the gamete level (a) evolve quickly, (b) appear sensitive to inbreeding and outbreeding and (c) have important influences on potential to reproduce. We apply this understanding to problems posed by escaped farm salmon and measure their potential to reproduce in the wild. Farm Atlantic salmon (Salmo salar) are a threat to biodiversity, because they escape in large numbers and can introgress, dilute or disrupt locally adapted wild gene pools. Experiments at the whole...

Data from: The role of predation and food limitation on claims for compensation, reindeer demography and population dynamics

Torkild Tveraa, Audun Stien, Henrik Brøseth & Nigel Gilles Yoccoz
1. A major challenge in biodiversity conservation is to facilitate viable populations of large apex predators in ecosystems where they were recently driven to ecological extinction due to resource conflict with humans. 2. Monetary compensation for losses of livestock due to predation is currently a key instrument to encourage human–carnivore coexistence. However, a lack of quantitative estimates of livestock losses due to predation leads to disagreement over the practise of compensation payments. This disagreement sustains...

Data from: Population properties affect inbreeding avoidance in moose

Ivar Herfindal, Hallvard Haanes, Knut H. Røed, Erling J. Solberg, Stine S. Markussen, Morten Heim, Bernt-Erik Sæther & B.-E. Saether
Mechanisms reducing inbreeding are thought to have evolved owing to fitness costs of breeding with close relatives. In small and isolated populations, or populations with skewed age- or sex distributions, mate choice becomes limited, and inbreeding avoidance mechanisms ineffective. We used a unique individual-based dataset on moose from a small island in Norway to assess whether inbreeding avoidance was related to population structure and size, expecting inbreeding avoidance to be greater in years with larger...

Data from: Recovery of large carnivores in Europe’s modern human-dominated landscapes

Guillaume Chapron, Petra Kaczensky, John D. C. Linnell, Manuela Von Arx, Djuro Huber, Henrik Andrén, José Vicente López-Bao, Michal Adamec, Francisco Álvares, Ole Anders, Linas Balčiauskas, Vaidas Balys, Péter Bedő, Ferdinand Bego, Juan Carlos Blanco, Urs Breitenmoser, Henrik Brøseth, Luděk Bufka, Raimonda Bunikyte, Paolo Ciucci, Alexander Dutsov, Thomas Engleder, Christian Fuxjäger, Claudio Groff, Katja Holmala … & Luigi Boitani
The conservation of large carnivores is a formidable challenge for biodiversity conservation. Using a data set on the past and current status of brown bears (Ursus arctos), Eurasian lynx (Lynx lynx), gray wolves (Canis lupus), and wolverines (Gulo gulo) in European countries, we show that roughly one-third of mainland Europe hosts at least one large carnivore species, with stable or increasing abundance in most cases in 21st-century records. The reasons for this overall conservation success...

Registration Year

  • 2014
    8

Resource Types

  • Dataset
    8

Affiliations

  • Norwegian Institute for Nature Research
    8
  • Norwegian University of Science and Technology
    4
  • Norwegian University of Life Sciences
    2
  • Ministry of Environment of the Republic of Lithuania
    1
  • Technical University of Zvolen
    1
  • University of Zagreb
    1
  • State Institute for Nature Protection
    1
  • University of Cambridge
    1
  • Provincia Autonoma di Trento
    1
  • University of Minnesota
    1