Sökning: "predation events"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden predation events.

1. 1. Spatial patterns in animal territoriality : competitive behaviour in a shell dwelling cichlid

   Kandidat-uppsats, SLU/Dept. of Forest Ecology and Management

   Författare :Samuel Malm; Ida Nordstrand; [2023]
   Nyckelord :Behavioural ecology; Edge effect; Neolamprologus Multifasciatus; Predation; Territoriality; Territory maintenance;

   Sammanfattning : Sociality among animals is a common phenomenon which has both costs and benefits. More and more studies are published that uses shell dwelling cichlids as a proxy for other taxa because of their convenience when studying, unique evolution and large variety in species. LÄS MER

3. 2. The evolutionary origins of phagocytosis in microbial populations

   Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

   Författare :Alfred Leimar; [2022]
   Nyckelord :Theoretical ecology; phagocytosis; predation; adaptive dynamics;

   Sammanfattning : The emergence of the eukaryotic cell was one of the key events that paved the path to the vast variety of complex life visible all around us. A pivotal event in the process of eukaryogenesis was an endosymbiosis of two prokaryotic cells which in time resulted in the mitochondria. LÄS MER

4. 3. The role of diseases in mass mortality of wood lemmings (Myopus schisticolor)

   Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

   Författare :Henrik Johansen; [2021]
   Nyckelord :wood lemming; Myopus schisticolor; disease; virus; pathogens; mass mortality; orthohantavirus; pan-orthohantavirus; somatic index; spleen index;

   Sammanfattning : Like many other rodent species, the wood lemming (Myopus schisticolor) exhibits cycles with large population peaks but unlike most other European rodents, these peaks are frequently followed by mass mortality. It is largely unknown what pathogens wood lemmings carry and if pathogens could affect their population dynamics. LÄS MER

5. 4. Evaluating the behavioural response of moose (Alces alces) to acoustic stimuli

   Master-uppsats, SLU/Dept. of Ecology

   Författare :Denice Lodnert; [2021]
   Nyckelord :Alces alces; behaviour; acoustic stimuli; behavioural response; acoustic deterrent; wildlife management;

   Sammanfattning : Fear in animals is a motivational state that cause the animals to change their behaviour. Anti-predator behaviour is innate behaviours shown by prey species in situations where there is an increased risk of predation. This can be caused by the presence of the actual predator or by implied presence by acoustic, olfactory or visual cues. LÄS MER

7. 5. Synchronizing migration with birth: an exploration of migratory tactics in female moose

   Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

   Författare :Linnéa Näsén; [2015]
   Nyckelord :migration; calving; moose; time minimization; energy maximization;

   Sammanfattning : Migration and giving birth are crucial decisions for animals during their life cycle, which may have lasting consequences on their population demography and fitness. Migration can entail a variety of possible effects for an individual, such as access to high quality food and reduced risk for predation. LÄS MER