Blar i Master i anvendt økologi / Master of applied ecology MAOK på utgivelsesdato
Viser treff 61-80 av 136
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To eat or to be eaten : Modelling part of the vertebrate food web of the boreal forest ecosystem in Fennoscandia
(Master thesis, 2018)Trophic relationships, amongst others, define the structure of an ecosystem. They are mostly simplified and described as plant-herbivore and predator-prey interactions. Modelling trophic interactions are one way to improve ... -
Development of saltwater tolerance in Atlantic salmon Salmo salar in various water qualities in Suldalslågen : Effects of variation in pH and dissolved aluminium
(Master thesis, 2018)1. Aqueous aluminium is described as the principal toxicant killing fish in acidified waters, along with low pH. A raising concern has been the possible effect this toxicant have on the declining Atlantic salmon population ... -
A seasonal feast : the use of moose slaughter remains by the boreal forest scavenger community in south-eastern Norway
(Master thesis, 2018)Scavenging by vertebrates is one of multiple foraging strategies to utilize food resources and a key ecological process in food web dynamics. It is used in periods of environmental stress such as shortage of prey, and as ... -
An assessment of optimal foraging in honeybees through decoding of waggle dances in an urban landscape
(Master thesis, 2018)A global decline of honeybees (Apis mellifera) and other pollinators which are essential for pollinating crops and wild flowers has been reported throughout the last decades. One major cause is the loss of available resources ... -
Possible underestimation of salmon lice (Lepeophtheirus salmonis) abundance using sentinel cages
(Master thesis, 2018)One of the biggest challenges related to salmon lice today is to get an accurate estimate of lice in its infectious life stage. A standard method to quantify this is to use sentinel cages with salmon smolts. In this study ... -
Characterisation of Habitat Requirements of European Fishing Spiders
(Master thesis, 2019)Semi-aquatic fishing spiders (Dolomedes) are dependent on wetlands, which are among the most threatened habitats, impacted by climate change and land use. There are two species of fishing spiders, Dolomedes plantarius and ... -
The effect of kinship on dynamic interactions and foraging behaviour in female red fox (Vulpes vulpes)
(Master thesis, 2019)The spatial organization of animals is a key concept in ecology and plays a crucial role in understanding animal behavior. Yet, much remains unknown regarding how individuals of the same, and of different, species interact ... -
Moose (Alces alces) flight response when disturbed by off-track skiing
(Master thesis, 2019)Wildlife face high potential to be disturbed by humans due to habitat loss and increasing popularity of recreational activities. Animals respond to the human disturbance as the risk of getting predated was real. The responses ... -
Spatiotemporal patterns of area use by humans and wild reindeer in a Norwegian National Park
(Master thesis, 2019)Human impacts have for several decades led to fragmentation of habitats for wild reindeer across Norway. In Dovrefjell – Sunndalsfjella National Park there is a complexity of human activity that threatens the seasonal ... -
Effects of reduced liming on brown trout (Salmo trutta L.) in four small tributaries in eastern Norway.
(Master thesis, 2020)Acidification of surface waters due to acidic precipitation has led to a reduction in biological diversity. Through international conventions, emissions causing the acidic precipitation has decreased. The hallenges associated ... -
Short-term effects of capture on movement of free-ranging Scandinavian brown bears
(Master thesis, 2020)Research of free-ranging wildlife often involves capture and chemical immobilization of animals. Such an invasive and stressful procedure may cause alterations in the animals’ physiology and behavior. Thus, evaluating the ... -
Scots pine (Pinus sylvestris) phytochemistry predicts male capercaillie (Tetrao urogallus) browsing during winter
(Master thesis, 2020)During winter, the capercaillie (Tetrao urogallus) faces harsh conditions with only heavily digestible food available. To cope with this, these birds consume large volumes to compensate for the low levels of digestible ... -
A comparison of body height in Crucian carp (Carassius carassius) in lakes with- and without predators
(Master thesis, 2020)Induced morphometrical defenses have been reported in crucian carp (Carassius carassius), and these defenses are presumed to be induced by predators. Crucian carp was sampled during 2018 and 2019 in 12 lakes in southeast ... -
Effects of GPS-collars on Svalbard reindeer survival and body condition
(Master thesis, 2020)Modern wildlife and conservation research often relies on GPS collars and on the assumption that collared animals are representative of the study population, but this assumption is rarely tested in the wild. These collars ... -
Blood concentrations of lead (Pb), mercury (Hg) and cadmium (Cd) in Scandinavian and Alaskan brown bears (Ursus arctos)
(Master thesis, 2020)Lead (Pb), mercury (Hg) and cadmium (Cd) are among the most serious environmental heavy metal pollutants with long half-life times that will make them present in both the environment and living organisms over a long period ... -
Resource-use of crucian carp (Carassius carassius) in lakes with different predation risk
(Master thesis, 2020)Predator fish and prey its prey can have considerable effect on fish communities and can affect the behavior of its prey. stable isotope of carbon (d13C) and nitrogen (d15N can provide as a powerful and useful tool for ... -
Gastrointestinal parasites in sympatric reindeer (Rangifer tarandus) and sheep (Ovis aries) - Evidence of spillover and consequences thereof
(Master thesis, 2020)Understanding the role of gastrointestinal parasites for ecosystems and their potential impact on their hosts is valuable knowledge within wildlife management. In Norway, there is a long tradition mountain grazing for ... -
Wolf-human interaction: a method and pilot study for experimental human approaches on wild, GPScollared wolves
(Master thesis, 2020)Wolves are recolonising human-dominated landscapes, which increases conflicts as people express fear based on the perception that wolves are dangerous and unpredictable. Increasing knowledge about behavioural responses of ... -
The effect of aqueous aluminium on mortality and respiration in the amphipod Gammarus lacustris
(Master thesis, 2021)The literature covering freshwater acidification and Al-toxicity in aquatic organisms has mainly focused on fish species sensitivity to acidic Al-rich water. A thorough review of the literature shows that knowledge is far ... -
Eradicating the American bullfrog with the sterile triploid method: methods and application
(Master thesis, 2021)The American bullfrog, an invasive species present all around the world, causes many problems in ecosystems. They are very hard to eradicate because of their complex developmental stages, their abundance, high fertility, ...