A5082872117- Animal Ecology and Behavior Studies
- Ecology and Vegetation Dynamics Studies
- Wildlife Ecology and Conservation
- Animal Behavior and Reproduction
- Avian ecology and behavior
- Species Distribution and Climate Change
- Bat Biology and Ecology Studies
- Yersinia bacterium, plague, ectoparasites research
- Genetics, Aging, and Longevity in Model Organisms
- Teratomas and Epidermoid Cysts
- Plant and animal studies
- Olfactory and Sensory Function Studies
- Ecosystem dynamics and resilience
- Animal Vocal Communication and Behavior
- Marine and fisheries research
- Metabolomics and Mass Spectrometry Studies
- Genetic diversity and population structure
- Gut microbiota and health
University of Oulu
2012-2024
Lars Research Institute
2015-2017
Flagstaff Medical Center
2017
Abstract During migratory journeys, birds may become displaced from their normal route. Experimental evidence has shown that adult can correct for such displacements and return to goal. However, the nature of cues used by perform long distance navigation is still debated. In this experiment we subjected lesser black-backed gulls migrating Finnish/Russian breeding grounds (from >60°N) Africa (to < 5°N) sensory manipulation, determine systems required navigation. We translocated westward...
The importance of weather in relation to food resources, determining reproduction, remains poorly understood for mammals, particularly species that do not depend on resources limited by spring conditions. We studied the effects and supply had timing reproduction observed litter size 2 squirrel species, Siberian flying European red squirrel, using long-term data sets spanning 20–30 years. Both subsist foods from tree masting, these are available squirrels autumn until early spring. Good...
Habitat loss is the major phenomenon threatening species in boreal forests. One example of a threatened affected by habitat Siberian flying squirrel (Pteromys volans). We used mark-recapture data from 1992 to 2004 for 3 populations estimate demographic parameters these populations. Average adult survival was 0.43–0.53, and probability surviving staying near natal territory through first winter 0.23–0.30 different These values are low compared estimates presented literature other Sciurid...
Abstract Linking dispersal to population growth remains a challenging task and is major knowledge gap, for example, conservation management. We studied relative roles of different demographic rates behind in Siberian flying squirrels two nest‐box breeding populations western Finland. Adults offspring were captured individually identifiable. constructed an integrated model, which estimated all relevant annual (birth, local [apparent] survival, immigration) as well rates. One (studied...
One way to cope with irregularly occurring resources is adjust reproduction according the anticipated future resource availability. In support of this hypothesis, few rodent species have been observed produce, after first litter born in spring, summer litters anticipation autumn's seed mast. This kind behaviour could eliminate or decrease lag population density normally present consumer dynamics. We focus on possible food availability Siberian flying squirrels, Pteromys volans. utilise...
Abstract The lifetime movements of an individual determine the gene flow and invasion potential species. However, sex dependence dispersal selective pressures driving have gained much more attention than at different life age stages. Natal is common between breeding attempts, but may be promoted by resource availability competition. Here, we utilize mark–recapture data on nest‐box population Siberian flying squirrels to analyze patterns. means distance natal nest used following year, whereas...
In contrast to many other gull species, nominate lesser black-backed gulls (Larus fuscus fuscus, nLBBG) have shown generally decreasing population trends throughout their breeding area in northern and eastern Fennoscandia over the past decades are now red-listed. Interspecific competition, predation, increased disturbance, organochlorine poisoning food shortages were suggested as main reasons for overall decrease. Here we contribute a better understanding of declines by comparing foraging...
Abstract The relative contributions of habitat and food availability on fitness may provide evidence for key features needed to safeguard population persistence. However, defining quality a species can be complex task, especially if knowledge the relationship between individual performance is lacking. Here, we determined importance suitable forest habitat, body mass from masting tree female lifetime reproductive success ( LRS ) Siberian flying squirrels P teromys volans ). We calculated 500...
Intact ecosystems are being lost or modified worldwide, and many animal species now forced to live in altered landscapes. A large amount of scientific studies have focused on understanding direct effects habitat alterations occurrence, abundance, breeding success, other life history aspects. Much less attention has been placed how impact the physiology species, e.g., via elevated chronic stress when living an landscape. Here, we quantify individual age sex, as well landscape social factors...
Climatic conditions, trophic links between species and dispersal may induce spatial synchrony in population fluctuations. Spatial increases the extinction risk of populations and, thus, it is important to understand how synchrony-inducing mechanisms affect already threatened by habitat loss climate change. For many species, unclear fluctuations vary over time space, what factors potentially drive this variation. In study, we focus on determining Siberian flying squirrel, Pteromys volans,...
Reproductive strategies and evolutionary pressures differ between males females. This often results in size differences the sexes, also sex-specific seasonal variation body mass. Seasonal mass is affected by other factors, such as weather. Studies on patterns may contribute to better understand mating system of a species. Here we quantify underlying using long-term dataset Siberian flying squirrel, Pteromys volans. We show that female squirrels were larger than based measures. Males had...
Abstract Understanding the diversity and causes of senescence patterns in wild remains a challenging task, particular among fast‐living species for which have been poorly studied. Early life environmental conditions can shape by influencing trade‐offs between early late performance (disposable soma theory) or individual fitness through lifelong positive effects (silver spoon effects). Using 23‐year‐long monitoring dataset two populations Siberian flying squirrels ( Pteromys volans L. )...
Studying and quantifying the breeding success of species can help to understand population trends provide conservation guidance. Here, we studied Arctic Tern (Sterna paradisaea) Common hirundo) colonies in a Natura 2000 site Western archipelago Finland aiming which factors related nest-site selection predation pressure best explain success. We monitored 72 tern nests at 4 observed them during standardized monitoring sessions record attacks on nests. ran generalized linear models determine...
ABSTRACT Interactions between the mammalian neuroendocrine system and gut microbiota (i.e., gut-brain axis) can shape how animals cope with environmental challenges. For example, both immune function extraction of energy from dietary items depend on microbiota, which be influenced by environment directly through transmission or indirectly responses. Environmental variation has been shown to translate into in microbiome profiles among wild animals, but whether this is due different microbial...