Hae
Aineistot 21-30 / 31
Plant remains in archaeology : a multidisciplinary approach to cultivation,consumption, trade and migration of economic plants in Southern Finland AD 1000−1900
(Turun yliopisto, 2019-03-16)
Plant remains are derived from archaeological contexts and therefore they provide an interesting source material for investigating the role of economic plants and environments in the past. Plant remains can reflect past ...
Food hoarding of an avian predator under food limitation and climate change
(Turun yliopisto, 2020-10-23)
Hoarding behaviour (storing food for later use) has evolved to reduce the risk of starvation when resources are scarce. In this thesis, I studied the food-hoarding behaviour of Eurasian pygmy owls (Glaucidium passerinum) ...
Population dynamics and evolutionary genetics of life history variation in Atlantic salmon
(Turun yliopisto, 2019-06-01)
Knowledge about variation in abundance and life-history traits is necessary to manage exploited populations. Atlantic salmon, Salmo salar, has high cultural, ecological and economic importance, supporting subsistence, ...
The Intra- and trans-generational effects of larval nutritional conditions on life-history traits of the greater wax moth, Galleria mellonella
(Turun yliopisto, 2020-02-29)
Phenotypic plasticity allows the same genotype to produce distinctly different morphological, physiological or behavioural characteristics depending on the environmental conditions the individual, and even its parents or ...
Context-dependence of grandmother effects & selection on post-reproductive life
(Turun yliopisto, 2020-09-21)
In cooperatively breeding species, the amount of help provided and the outcomes of that help can vary greatly under different contexts, such as helper age, sex of the offspring, or age of the offspring. Contextual variation ...
Glyfosaatin epäsuorat vaikutukset viljelykasveihin
(Turun yliopisto, 2018-02-07)
Glyfosaatti on maailmanlaajuisesti eniten käytetty rikkakasvintorjunta-aine, jonka hajoaminen erityisesti pohjoisisssa ekosysteemeissä on oletettua hitaampaa. Glyfosaattijäämiä voi maaperässä esiintyä useita viikkoja ...
Majavien elinympäristön käyttö ja sen tutkimuksessa käytettävien menetelmien vertailu
(Turun yliopisto, 2018-11-06)
Suomen kaksi majavalajia, euroopanmajava (Castor fiber) ja kanadanmajava eli amerikanmajava (Castor canadensis), ovat ekologialtaan hyvin samanlaisia. Kun euroopanmajava hävisi Suomesta, kannan elvyttämiseksi Norjasta ...
Using remote sensing to map tree species distributions and floristic patterns of trees in Peruvian Amazonia at different extents
(Turun yliopisto, 2020-12-18)
Amazonia, the largest and most diverse tropical forest in the world, continues facing pressures and losing forest cover while vast areas remain biologically poorly known. Knowing where a species occurs, and the distribution ...
Movement and habitat selection of the Eurasian red squirrel
(Turun yliopisto, 2019-10-05)
Movement ability and habitat selection of individuals are highly significant in determining the size of a population and impact the range and survival of the entire species. Thus, the conservation and management of animal ...
Limited evidence for a negative effect of heavy metal pollution on the egg characteristics and reproductive success of great tits (Parus major)
(Turun yliopisto, 2018-04-26)
Heavy metals are known to have negative effects on the reproduction, egg formation and offspring development of birds. This study aimed to investigate whether heavy metals affect egg mass, eggshell mass and thickness, ...