Essays about: "Optimal Foraging Theory"

Found 5 essays containing the words Optimal Foraging Theory.

  1. 1. Diving Deep: Seabird foraging tactics and local prey field

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Elin Andersson Sjöholm; [2024]
    Keywords : Common Guillemot; Uria aalge; Optimal Foraging theory; Hydroacoustic data; resource selection;

    Abstract : Foragers in patchy environments need to decide what patches to use and how to allocate their time between them. Optimal foraging theory describes these choices through the relationship between energy expenditure and energy gain. READ MORE

  3. 2. Can the native shore crabs (Carcinus maenas) become a barrier to the invasion of the round goby (Neogobius melanostomus) in Öresund, southern Baltic Sea?

    University essay from Lunds universitet/Examensarbeten i biologi

    Author : Nikolaos Papagiannopoulos; [2018]
    Keywords : Biology and Life Sciences;

    Abstract : The round goby (Neogobius melanostomus) is a non-indigenous species to the Baltic Sea that has drawn the attention of many researchers in the last decade due to its rapid spreading and its impact on the local fauna. With recent concerns about the dispersal of the round goby towards the North Sea, the aim of this study was to determine if the native shore crab could compete with the invaders and prevent their advance. READ MORE

  4. 3. An Optimal Foraging Perspective on Early Holocene Human Prey Choice on Gotland : Affluence or Starvation?

    University essay from Institutionen för kultur, energi och miljö

    Author : Ingegärd Enander Malmros; [2012]
    Keywords : Gotland; grey seal; Holocene; hunter-gatherer; Mesolithic; Optimal Foraging Theory; OFT; 8.2 ka BP cold event; Zen Road;

    Abstract : The Optimal Foraging Theory, rooted in the processual archaeology, uses a measuring methodology where the foraging strategy that gives the highest payoff measured as the highest ratio of energy gain per time unit is analysed (Mac Arthur & Pianca 1966, Emlen 1966). The theory is a branch of evolutionary ecology why much attention is paid to the interdependence of humans and preys and environmental conditions caused by climatologically and geographical changes or by overexploitation or other changes caused by humans. READ MORE

  5. 4. Optimal Foraging Theory - OFT : Background, Problems and Possibilities

    University essay from Institutionen för kultur, energi och miljö

    Author : Ingegärd Enander Malmros; [2012]
    Keywords : Darwinism; diet-breadth; evolutionary ecology; Marginal Value Theorem; MVT; Optimal Foraging Theory; OFT; patch choice; prey choice; Gotland;

    Abstract : Optimal Foraging Theory (OFT) has its origin in processualistic ideas in 1960s with traces back to the dawn of the archaeological science in the 19th century. The OFT model is based on the construction of an individual’s food item selection understood as an evolutionary construct that maximizes the net energy gained per unit feeding time. READ MORE

  6. 5. How does predation from fish influence the benthic invertebrates’ species composition in the Phragmites australis and Chara vegetation of Lake Takern?

    University essay from Ekologi

    Author : Ernest Aigbavbiere; [2011]
    Keywords : Handling time; intake rate; predation; macro-invertebrates.;

    Abstract : Predation is one of the important selective factors that regulate the species composition of benthic invertebrate communities. The study objective was to investigate the invertebrate distribution in two contrasting habitats in Lake Takern, southern Sweden, submerged Chara vegetation and emergent Phragmites australis vegetation, and to investigate the influence of predation from fish on certain invertebrates. READ MORE