Blar i Ecology på emneord "VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488"
Viser treff 1-9 av 9
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Ecology of Alpine Lichen Heaths: Relationships Between Vegetation, Soil Temperature, and Edaphic Factors in Southern Norway
(Doctoral dissertations at the University of South-Eastern Norway;29, Doctoral thesis, 2019-03-01)Alpine lichen heaths are found on nutrient-poor and deep soils in the mountain plateaus in southern Norway. These are generally characterized by terricolous or so-called “mat-forming” lichens dominated by those in the ... -
The effects of social, familial, and anthropogenic factors on dispersal-related space use and movement behavior in Scandinavian brown bear (Ursus arctos)
(Doctoral dissertations at the University of South-Eastern Norway;150, Doctoral thesis, 2023-01-19)Among mammals, dispersal is one of the most critical life phases whose outcomes have enormous consequences for survival and reproduction. However, there are several unknowns regarding dispersal and settlement decisions, ... -
Impact of climate change and habitat degradation on two endangered reptiles: the Guatemalan beaded lizard and the Olive Ridley sea turtle
(Doctoral dissertations at the University of South-Eastern Norway;165, Doctoral thesis, 2023-06-15)Climate change and habitat degradation are the main threats to non-avian reptiles. Non-avian reptiles are a clade of ectothermic vertebrates that include turtles, alligators, lizards, amphisbaenians, and snakes. As ectotherms, ... -
Mercury in freshwater biota in southeastern Norway, with special emphasis on potential antagonistic effects of selenium on mercury bioaccumulation
(Doctoral dissertations at the University College of Southeast Norway;23, Doctoral thesis, 2017-10-06)Mercury (Hg), and in particular methylated Hg (methyl-Hg, MeHg), because of its high potential for bioaccumulation and biomagnification in aquatic food webs, generate health risks to both aquatic top predators and humans ... -
Observing animal behaviour and movement patterns remotely: A case study using bio-logging technology on free-ranging Eurasian beavers (Castor fiber)
(Doctoral dissertations at the University College of Southeast Norway;10, Doctoral thesis, 2017-02-24)Understanding animal behaviour is a fundamental part of biology and has been revolutionized by the invention of bio-logging units, which can be used to study wild animals in their natural habitats. In this thesis, tri-axial ... -
Territorial movement behaviour in the Eurasian beaver
(Doctoral dissertations at the University of South-Eastern Norway;162, Doctoral thesis, 2023-06-09)It can be challenging to observe and quantify natural behaviour in wild free-ranging animals. Species that are reclusive or exploit multiple environments, such as semi-aquatic mammals, may be particularly difficult to ... -
Territoriality and life history strategies of the Eurasian beaver
(Doctoral dissertations at the University College of Southeast Norway;24, Doctoral thesis, 2017-09-29)We studied life history strategies in the Eurasian beaver (Castor fiber), a territorial, monogamous, long-lived mammal, to increase our understanding of the mechanisms and trade-offs affecting the onset of natal dispersal, ... -
The effects of harvest on the sociospatial and genetic structure of a solitary-living large carnivore, the brown bear Ursus arctos
(Doctoral dissertations at the University College of Southeast Norway;28, Doctoral thesis, 2017-10-20)Understanding the effects of harvest is integral for sustainable wildlife management and conservation. And yet, the focus of managers has predominantly been on the direct mortality of harvest, often ignoring the indirect ... -
Tick-borne encephalitis virus: an emerging virus in Scandinavia
(Doctoral dissertations at the University of South-Eastern Norway;190, Doctoral thesis, 2024-05-14)Tick-borne encephalitis virus (TBEV) causes Tick-borne encephalitis (TBE) which is an infection of the central nervous system that can lead to encephalitis. TBE cases are increasing in Scandinavia over the last few decades ...