Essays about: "generalized additive model"

Showing result 6 - 10 of 21 essays containing the words generalized additive model.

  1. 6. Comparing Resource Abundance And Intake At The Reda And Wisla River Estuaries

    University essay from Linköpings universitet/Statistik och maskininlärning

    Author : Saman Zahid; [2021]
    Keywords : Reda and Wisla river estuaries; resource abundance; change in mass; multiple linear regression; generalized additive model; linear mixed effect model; Expectation-maximization; AIC;

    Abstract : The migratory birds stop at different stopover sites during migration. The presence of resources in these stopover sites is essential to regain the energy of these birds. This thesis aims to compare the resource abundance and intake at the two stopover sites: Reda and Wisla river estuaries. READ MORE

  3. 7. Birds' Flight Range. : Sensitivity Analysis.

    University essay from Linköpings universitet/Institutionen för datavetenskap

    Author : Brian Masinde; [2020]
    Keywords : Flight; Sensitivity Analysis; Sobol indices; meta-modelling; quasi-Monte Carlo method;

    Abstract : ’Flight’ is a program that uses flight mechanics to estimate the flight range of birds. This program, used by ornithologists, is only available for Windows OS. It requires manual imputation of body measurements and constants (one observation at a time) and this is time-consuming. READ MORE

  4. 8. Moose movement speed and home range during the rutting season

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Irene Hjort; [2020]
    Keywords : movement speed; home range; age; dawn; dusk; sex ratio; Alces alces;

    Abstract : Intraspecific differences in movement over time occur across many taxa. In moose (alces alces), such behaviour has been seen during the rut. Knowledge about behavioural patterns can improve management since it can act as a tool in decision-making. READ MORE

  5. 9. Humpback whale (Megaptera novaeangliae) location in Southeast Alaska : modeling the influence of mesoscale krill (Euphausiacea) patch depth and size

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Christine Walder; [2018]
    Keywords : physical geography and ecosystem analysis; humpback whales; krill; patchiness; vertical distribution; Generalized Additive Models GAMs ; spatial modeling; Earth and Environmental Sciences;

    Abstract : Humpback whales ([i]Megaptera novaeangliae[/i]) require dense prey aggregations due to the high energetic cost of their feeding methods. Modeling studies have shown that when whales are on their feeding grounds, they are closely associated with high prey concentrations. READ MORE

  6. 10. Seasonal changes in clupeids maturation constrains the food quality of chicks of the common guillemot (Uria aalge) : A case study of a potential mismatch, from the perspective of the common guillemot chicks on Stora Karlsö, the Baltic Sea

    University essay from Stockholms universitet/Stockholm Resilience Centre

    Author : Emelie Delphin; [2018]
    Keywords : Common guillemot Uria aalge ; Sprat Sprattus sprattus ; Herring Clupea herengus ; Match-mismatch hypothesis; the Baltic Sea;

    Abstract : Background: Common guillemots are integral elements of the Baltic Sea marine ecosystem. They possess life-history characteristics such as relatively long lifespan, quite low fecundity resulting in only one egg per breeding season – characteristics that make them particularly vulnerable to even small changes in the environment. READ MORE