15 Works

Data from: On fitness and partial migration in a large herbivore – migratory moose have higher reproductive performance than residents

Christer Moe Rolandsen, Erling J. Solberg, Bengt-Erik Sæther, Bram Van Moorter, Ivar Herfindal, Kari Bjørneraas & Bernt-Erik Saether
Partially migratory populations comprise both resident and migratory individuals. These tactics may coexist if their demographic contribution to future generations (i.e. fitness) are equal or vary temporally with environmental conditions, or if individuals switch between being migrant and resident. Alternatively, the choice of movement tactic can be based on individual attributes such as age, competitive ability or personality. In the latter cases, the two tactics are not expected to have similar average fitness. In this...

Data from: Phylogeny and new taxonomy of the Booted Eagles (Accipitriformes: Aquilinae)

Heather R. L. Lerner, Les Christidis, Anita Gamauf, Carole Griffiths, Elisabeth Haring, Christopher J. Huddleston, Sonia Kabra, Annett Kocum, Meade Krosby, Kirsti Kvaloy, David Mindell, Pamela Rasmussen, Nils Rov, Rachel Wadleigh, Michael Wink & Jan Ove Gjershaug
We present a phylogeny of all booted eagles (38 extant and one extinct species) based on analysis of published sequences from seven loci. We find molecular support for five major clades within the booted eagles: Nisaetus (10 species), Spizaetus (4 species), Clanga (3 species), Hieraaetus (6 species) and Aquila (11 species), requiring generic changes for 14 taxa. Additionally, we recommend that the Long-crested Eagle (Lophaetus occipitalis) and the Black Eagle (Ictinaetus malaiensis) remain in their...

Data from: Let’s stay together? Intrinsic and extrinsic factors involved in pair bond dissolution in a recolonizing wolf population

Cyril Milleret, Petter Wabakken, Olof Liberg, Mikael Åkesson, Øystein Flagstad, Harry Peter Andreassen & Håkan Sand
For socially monogamous species, breeder bond dissolution has important consequences for population dynamics, but the extent to which extrinsic or intrinsic population factors causes pair dissolution remain poorly understood, especially among carnivores. Using an extensive life-history data set, a survival analysis and competing risks framework, we examined the fate of 153 different wolf (Canis lupus) pairs in the recolonizing Scandinavian wolf population, during 14 winters of snow tracking and DNA monitoring. Wolf pair dissolution was...

Data from: Arthropod distribution in a tropical rainforest: tackling a four dimensional puzzle

Yves Basset, Lukas Cizek, Philippe Cuénoud, Raphael K. Didham, Vojtech Novotny, Frode Ødegaard, Tomas Roslin, Alexey K. Tishechkin, Jürgen Schmidl, Neville N. Winchester, David W. Roubik, Henri-Pierre Aberlenc, Johannes Bail, Héctor Barrios, Jonathan R. Bridle, Gabriela Castaño-Meneses, Bruno Corbara, Gianfranco Curletti, Wesley Duarte Da Rocha, Domir De Bakker, Jacques H.C. Delabie, Alain Dejean, Laura L. Fagan, Andreas Floren, Roger L. Kitching … & Jacques H. C. Delabie
Quantifying the spatio-temporal distribution of arthropods in tropical rainforests represents a first step towards scrutinizing the global distribution of biodiversity on Earth. To date most studies have focused on narrow taxonomic groups or lack a design that allows partitioning of the components of diversity. Here, we consider an exceptionally large dataset (113,952 individuals representing 5,858 species), obtained from the San Lorenzo forest in Panama, where the phylogenetic breadth of arthropod taxa was surveyed using 14...

Data from: Modelled drift patterns of fish larvae link coastal morphology to seabird colony distribution

Hanno Sandvik, Robert T. Barrett, Kjell Einar Erikstad, Mari S. Myksvoll, Frode Vikebø, Nigel Yoccoz, Tycho Anker-Nilssen, Svein-Håkon Lorentsen, Tone K. Reiertsen, Jofrid Skarðhamar, Mette Skern-Mauritzen & Geir Helge Systad
Colonial breeding is an evolutionary puzzle, as the benefits of breeding in high densities are still not fully explained. Although the dynamics of existing colonies are increasingly understood, few studies have addressed the initial formation of colonies, and empirical tests are rare. Using a high-resolution larval drift model, we here document that the distribution of seabird colonies along the Norwegian coast can be explained by variations in the availability and predictability of fish larvae. The...

Data from: High-throughput microsatellite genotyping in ecology: improved accuracy, efficiency, standardization and success with low-quantity and degraded DNA

Marta De Barba, Christian Miquel, Stephane Lobreaux, Pierre Yves Quenette, Jon E. Swenson & Pierre Taberlet
Microsatellite markers have played a major role in ecological, evolutionary and conservation research during the past 20 years. However, technical constrains related to the use of capillary electrophoresis and a recent technological revolution that has impacted other marker types have brought to question the continued use of microsatellites for certain applications. We present a study for improving microsatellite genotyping in ecology using high-throughput sequencing (HTS). This approach entails selection of short markers suitable for HTS,...

Data from: Temporal variation in habitat selection breaks the catch-22 of spatially contrasting predation risk from multiple predators

Karen Lone, Atle Mysterud, Terje Gobakken, John Odden, John Linnell & Leif Egil Loe
Predator avoidance depends on prey being able to discern how risk varies in space and time, but this is made considerably more complicated if risk is simultaneously present from multiple predators. This is the situation for an increasing number of mammalian prey species, as large carnivores recover or are reintroduced in ecosystems on several continents. Roe deer Capreolus capreolus in southern Norway illustrate a case in which prey face two predators with contrasting patterns of...

Data from: Intensity of space use reveals conditional sex-specific effects of prey and conspecific density on home range size

Malin Aronsson, Matthew Low, José V. López-Bao, Jens Persson, John Odden, John D C. Linnell & Henrik Andrén
Home range (HR) size variation is often linked to resource abundance, with sex differences expected to relate to sex-specific fitness consequences. However, studies generally fail to disentangle the effects of the two main drivers of HR size variation, food and conspecific density, and rarely consider how their relative influence change over spatiotemporal scales. We used location data from 77 Eurasian lynx (Lynx lynx) from a 16-year Scandinavian study to examine HR sizes variation relative to...

Data from: Hunting promotes sexual conflict in brown bears

Jacinthe Gosselin, Martin Leclerc, Andreas Zedrosser, Sam M. J. G. Steyaert, Jon E. Swenson & Fanie Pelletier
The removal of individuals through hunting can destabilize social structure, potentially affecting population dynamics. Although previous studies have shown that hunting can indirectly reduce juvenile survival through increased sexually selected infanticide (SSI), very little is known about the spatiotemporal effects of male hunting on juvenile survival. Using detailed individual monitoring of a hunted population of brown bears (Ursus arctos) in Sweden (1991–2011), we assessed the spatiotemporal effect of male removal on cub survival. We modelled...

Data from: Maternal winter body mass and not spring phenology determine annual calf production in an Arctic herbivore

Vebjorn Veiberg, Leif Egil Loe, Steve Albon, Robert Irvine, Torkild Tveraa, Erik Ropstad, Audun Stien, Steve D. Albon & R. Justin Irvine
Warming of the Arctic has resulted in earlier snowmelt and green-up of plants in spring, potentially disrupting the synchrony between plant phenology and breeding phenology in herbivores. A negative relationship between offspring survival in West-Greenland caribou and the timing of vegetation emergence was the first finding of such a mismatch in Arctic mammals. However, other studies indicate that the energy for foetal growth and early lactation is predominantly drawn from stored energy reserves typical of...

Data from: Weak geographical structure in sperm morphology across the range of two willow warbler Phylloscopus trochilus subspecies in Scandinavia

Hanna N. Støstad, Silje L. Rekdal, Oddmund Kleven, Terje Laskemoen, Gunnhild Marthinsen, Arild Johnsen & Jan T. Lifjeld
Sperm morphology is highly diversified among species and at higher taxonomic levels. In birds, there is also increasing evidence of geographical differentiation in sperm traits within species, especially in those with strong sperm competition. Geographical divergences in sperm traits might imply the formation of a reproductive barrier in a speciation process. Here we study sperm morphology variation of willow warblers Phylloscopus trochilus in a geographical context in Scandinavia, across the range of two subspecies that...

Data from: The cost of migratory prey: seasonal changes in semi-domestic reindeer distribution influences breeding success of Eurasian lynx in northern Norway

Zea Walton, Jenny Mattisson, John D.C. Linnell, Audun Stien, John Odden & John D. C. Linnell
Migratory prey is a widespread phenomenon that has implications for predator–prey interactions. By creating large temporal variation in resource availability between seasons it becomes challenging for carnivores to secure a regular year-round supply of food. Some predators may respond by following their migratory prey, however, most predators are sedentary and experience strong seasonal variation in resource availability. Increased predation on alternative prey may dampen such seasonal resource fluctuations, but reduced reproduction rates in predators is...

Data from: Harvest-induced phenotypic selection in an island population of moose, Alces alces

Thomas Kvalnes, Bernt-Erik Sæther, Hallvard Haanes, Knut H. Røed, Steinar Engen, Erling J. Solberg & Bernt-Erik Saether
Empirical evidence strongly indicates that human exploitation has frequently led to rapid evolutionary changes in wild populations, yet the mechanisms involved are often poorly understood. Here we applied a recently developed demographic framework for analysing selection to data from a 20-year study of a wild population of moose, Alces alces. In this population, a genetic pedigree has been established all the way back to founders. We demonstrate harvest-induced directional selection for delayed birth dates in...

Data from: The influence of weather conditions during gestation on life histories in a wild Arctic ungulate

Mathieu Douhard, Leif Egil Loe, Audun Stien, Christophe Bonenfant, R. Justin Irvine, Vebjørn Veiberg, Erik Ropstad & Steve Albon
The internal predictive adaptive response (internal PAR) hypothesis predicts that individuals born in poor conditions should start to reproduce earlier if they are likely to have reduced performance in later life. However, whether this is the case remains unexplored in wild populations. Here, we use longitudinal data from a long-term study of Svalbard reindeer to examine age-related changes in adult female life-history responses to environmental conditions experienced in utero as indexed by rain-on-snow (ROSutero). We...

Data from: Allometric scaling of intraspecific space use

Carolyn M. Rosten, Rodolphe E. Gozlan & Martyn C. Lucas
Allometric scaling relationships enable exploration of animal space-use patterns, yet interspecific studies cannot address many of the underlying mechanisms. We present the first intraspecific study of home range (HR) allometry relative to energetic requirements over several orders of magnitude of body mass, using as a model the predatory fish, pike Esox lucius. Analogous with interspecific studies, we show that space use increases more rapidly with mass (exponent = 1.08) than metabolic scaling theories predict. Our...

Registration Year

  • 2016
    15

Resource Types

  • Dataset
    15

Affiliations

  • Norwegian Institute for Nature Research
    15
  • Norwegian University of Life Sciences
    6
  • Norwegian University of Science and Technology
    4
  • Swedish University of Agricultural Sciences
    3
  • University of Oslo
    2
  • French National Centre for Scientific Research
    2
  • James Hutton Institute
    2
  • Southern Cross University
    1
  • National Museum
    1
  • Centre national de la recherche scientifique
    1