Sökning: "animal contest"

Hittade 5 avhandlingar innehållade orden animal contest.

1. 1. Why and how brain size evolves : Sociality, predation and allometry

   Författare :Wouter van der Bijl; Niclas Kolm; Joah Madden; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; brain size; brain size evolution; encephalization; predation; predator inspection; sociality; animal contest; constraint; etologi; Ethology;

   Sammanfattning : The evolution of the vertebrate brain has remained a topic of intense interest from biologists over many decades. Evolutionary biologists have seen it as an intriguing example of how the size and structure of a trait evolves across large phylogenies and under body size constraints, with both large shifts in deep evolutionary time and continuous smaller scale adaptation. LÄS MER

3. 2. Choice, competition, and interactions between episodes of sexual selection

   Författare :Charel Reuland; John Fitzpatrick; Ingo Schlupp; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; contest competition; sperm competition; mate choice; cryptic choice; sperm quality; reproductive status; social dominance; etologi; Ethology;

   Sammanfattning : Choice and competition are essential parts of evolutionary biology. In an effort to pass their genes from one generation to the next, animals may carefully choose their mating partners, and/or compete for access to mates. LÄS MER

4. 3. Risk assessment and contest behaviour in the Cichlid fish Nannacara anomala

   Författare :Olle Brick; Felicity A. Huntingford; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; zoologi; Zoology;

   Sammanfattning : The risk of predation is an important factor for our understanding of animal behaviour in general. This thesis investigates the influence of predation risk on fighting behaviour in the cichlid fish Nannacara anomala. LÄS MER

5. 4. The Art of Modelling Oscillations and Feedback across Biological Scales

   Författare :Linnéa Gyllingberg; David J. T. Sumpter; Helen Byrne; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mathematical biology; mathematical modelling; oscillations; feedback mechanisms; dynamical systems; individual-based models; complex systems; Tillämpad matematik och statistik; Applied Mathematics and Statistics;

   Sammanfattning : This thesis consists of four papers in the field of mathematical biology. All papers aim to advance our understanding of biological systems through the development and application of innovative mathematical models. LÄS MER

7. 5. Mathematical models of biological interactions

   Författare :Linnéa Gyllingberg; David J.T. Sumpter; Kolbjörn Tunström; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Mathematics with specialization in Applied Mathematics; Matematik med inriktning mot tillämpad matematik;

   Sammanfattning : Mathematical models are used to describe and analyse different types of biological interactions.  From self-propelled particle models capturing the collective motion of fish schools to models in mathematical neuroscience describing the interactions between neurons to individual-based models of ecological interactions. LÄS MER