Browsing NTNU Open by Author "Nafstad, Ådne Messel"
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Ecological & evolutionary role of resting metabolic rate in wild house sparrow populations
Nafstad, Ådne Messel (Doctoral theses at NTNU;2024:426, Doctoral thesis, 2024)Ongoing environmental changes cause worldwide population declines. To better preserve biodiversity we must understand factors that contribute to population viability and persistence. For populations to persist under ... -
Effects of energetic state and social environment on individual foraging strategies in a population of house sparrows, Passer domesticus
Guldvik, Martin (Master thesis, 2023)Hvordan variasjon i adferd blant individer som er del av samme populasjon or er utsatt for de samme seleksjonstrykkene blir vedlikeholdt, er ennå uvisst blant evolusjonsbiologer, siden de forventes å ha utviklet de samme ... -
Effects of individual variation on social foraging dynamics in the house sparrow, Passer domesticus
Zeiner-Henriksen, Tuva (Master thesis, 2023)Personlighet hos dyr blir definert som konsekvente individuelle forskjeller i gjennomsnittlig atferd. I et sosialt miljø kan slike forskjeller bli formet av individuelle iboende egenskaper, samt indirekte fitness-effekter ... -
Growth models for assessing anthropogenic impacts on King scallop, Pecten maximus (Bivalvia), at Frøya, Norway
Nafstad, Ådne Messel (Master thesis, 2018)In marine ecosystems, the performance of coastal species is affected by anthropogenic activities such as aquaculture and plastic pollution. These impacts will increase in the future as the human population and consumption ... -
Long-distance dispersal in the short-distance dispersing house sparrow (Passer domesticus)
Ranke, Peter Sjolte; Pepke, Michael Le; Søraker, Jørgen Skavdal; David, Gabriel; Araya Ajoy, Yimen Gerardo; Wright, Jonathan; Nafstad, Ådne Messel; Rønning, Bernt; Pärn, Henrik; Ringsby, Thor Harald; Jensen, Henrik; Sæther, Bernt-Erik (Journal article; Peer reviewed, 2024)The house sparrow (Passer domesticus) is a small passerine known to be highly sedentary. Throughout a 30-year capture–mark–recapture study, we have obtained occasional reports of recoveries far outside our main metapopulation ... -
Spatial variation in the evolutionary potential and constraints of basal metabolic rate and body mass in a wild bird
Nafstad, Ådne Messel; Rønning, Bernt; Aase, Kenneth; Ringsby, Thor Harald; Hagen, Ingerid Julie; Ranke, Peter Sjolte; Kvalnes, Thomas; Stawski, Clare; Räsänen, Katja; Sæther, Bernt-Erik; Muff, Stefanie; Jensen, Henrik (Peer reviewed; Journal article, 2023)An organism's energy budget is strongly related to resource consumption, performance, and fitness. Hence, understanding the evolution of key energetic traits, such as basal metabolic rate (BMR), in natural populations is ... -
The effect of haemoglobin concentration on the thermal conductance and metabolic rate of house sparrows
Nybø, Karina (Master thesis, 2023)Endoterme dyr (pattedyr og fuglar) brukar metabolsk energi for å halde kroppstemperaturen sin på eit stabilt nivå. Den termoregulatoriske kurva, først beskrive av Scholander og Irving, viser korleis den metabolske raten ... -
The effects of inbreeding on resting metabolic rate and thermal conductance in wild house sparrows (Passer domesticus)
Knudsen, Sofie (Master thesis, 2022)Menneskelige påvirkninger fører til at populasjoner blir mindre, mer fragmenterte og isolerte, som kan resultere i populasjonsstørrelser som er mer sårbare for innavl. Når innavl reduserer trekk som er nært knyttet til ...