| ________ is the consumption of one living organism by another. | Predation |
| A species that consumes both plant and animal tissue is called a(n) ________. | omnivore |
| A(n) ________ is an organism that lives on or within another without killing the host. | parasite |
| Autotrofe, heterotrofi og detrivori/carnivor? | Autrofe: Opbygger organisk materiale udfra uorganisk materiale.
Heterotrofi: Udnytter organisk materiale.
Detrivori: Lever af dødt organisk materiale
Carnivor: Lever af kød |
| The relationship between the per capita rate of consumption and the number of prey is known as the predator's ________ response. | functional |
| The trade-off between conflicting demands faced by a predator is described by the ________ foraging theory.
(Afvejningen mellem modstridende krav, som et rovdyr står over for, er beskrevet af ________ foderingsteorien. | optimal foraging theory.
(Foderingsteori er en gren af adfærdsøkologi, der studerer dyrenes foderadfærd som respons på miljøet, hvor dyret lever). |
| The costs of foraging can be measured in terms of the time and ________ expended (brugt) in the act of foraging. | resources/energy |
| ________ defenses are not permanently present but, rather, are brought about by the presence or action of predators. | Induced. Modsat er permanente (constitutive) defenses. |
| A plant may be able to compensate for the loss of leaves by increasing the rate of ________ in the remaining leaves. | photosynthesis (hvorefter den kan vokse og dermed danne nye blade) |
| A parasitoid | attacks the host indirectly by laying its eggs in or on the prey's body. |
| The net outcome of predator-prey interactions in the basic Lotka-Volterra models is that | predator and prey populations oscillate, with each predictably increasing and decreasing in response to the other. (Rovdyr og byttepopulationer svinger, hvor hver forudsigeligt øges og falder som reaktion på den anden). |
| When predators come together in areas of high prey density, it is referred to as | an aggregative response. |
| This figure shows that | lynx populations numerically respond to hare populations. Numerical response is the increase of predators with an increased food supply. (Numerically respond also involves a change in the growth rate of a predator population through changes in fecundity). |
| According to the Red Queen hypothesis, | prey must continually evolve means of avoiding capture to avoid extinction. (Byttedyr skal hele tiden udvikle sig for at undgå fangst for at undgå udryddelse). |
| When prey produce so many offspring in a short period of time that predators can attack only a fraction of them, it is referred to as | predator satiation (rov-dyrs-mætning). |
| Quantitative inhibitors (some secoundary compounds are produced by the plant in large quantities), whats that for?
Kvantitative hæmmere (nogle sekundære forbindelser produceres af planten i store mængder), hvad er det til? | reduce digestibility of plant material (reducerer fordøjelighed af plantemateriale). |
| Qualitative inhibitors (other secondary compunds by the plant)? | Defenses against herbivory that are present in small to minute quantities. These compounds are toxic. |
| De tre typer af functional response? | Type 1: The number of prey affected increases linearly.
Type 2: The number of prey affected increases at a decreasing rate toward a maximum value (type 2 response is a function of allocation of feeding time by predators between the activities of searching for prey and handling prey).
Type 3: The number of prey consumed increases sigmodially as the density of prey increases. |
