lecture 14- ecology
40 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is a key factor that must be considered when simulating a green world with herbivores and predators?

  • Competition among herbivores (correct)
  • Effects of temperature on predator-prey interactions
  • Stability of predator populations
  • Cost of ecological restoration
  • What distinguishes herbivory from carnivory in terms of diet?

  • Herbivores have adaptations like sharp teeth and claws for capturing prey.
  • Herbivores rely on keen senses to hunt down their prey.
  • Herbivores feed on plants while carnivores feed on other animals. (correct)
  • Herbivores are smaller in size compared to carnivores.
  • Why is it important to have a solid understanding of mathematical modeling techniques when implementing numerical methods for solving equations related to predator-prey dynamics?

  • To estimate resource availability accurately
  • To determine the effects of atmospheric pressure on ecosystems
  • To analyze population dynamics effectively (correct)
  • To predict future environmental catastrophes
  • Which of the following is an adaptation seen in carnivores?

    <p>Sharp teeth and claws for capturing prey (C)</p> Signup and view all the answers

    In a simulation framework involving predator-prey relationships, what is a significant challenge when validating the results against empirical data?

    <p>Understanding the emergent properties of the ecosystem (B)</p> Signup and view all the answers

    Why is herbivory essential for maintaining ecosystem balance?

    <p>To maintain plant population balance (D)</p> Signup and view all the answers

    In which form of predation does an organism consume members of its own species?

    <p>Cannibalism (D)</p> Signup and view all the answers

    What aspect of simulating predator and prey populations adds complexity to the modeling process beyond interactions between predators and prey?

    <p>Resource availability (A)</p> Signup and view all the answers

    When modeling a green world involving herbivores and predators, what must be accounted for besides spatial heterogeneity and habitat dynamics?

    <p>Interactions between nutrient cycling, primary production, and trophic relationships (A)</p> Signup and view all the answers

    What is the primary diet of a herbivore?

    <p>Plants or plant materials (C)</p> Signup and view all the answers

    What does the term 'rNprey' represent in the Lotka-Volterra predator-prey model equation for the prey?

    <p>Prey's intrinsic growth rate (D)</p> Signup and view all the answers

    Which parameter in the Lotka-Volterra equations determines how many prey are captured by each predator?

    <p>Capture efficiency or predation rate (B)</p> Signup and view all the answers

    What does the term 'acNpredNprey' represent in the Lotka-Volterra predator-prey model equation for the predators?

    <p>Predator's capture efficiency (B)</p> Signup and view all the answers

    In the Lotka-Volterra equations, what does 'mNpred' signify for the predator population?

    <p>Predator's mortality rate (B)</p> Signup and view all the answers

    Which aspect do the Lotka-Volterra predator-prey model equations focus on?

    <p>Dynamics of predator-prey relationships in ecosystems (A)</p> Signup and view all the answers

    What term describes an interaction where one species benefits while the other is neither helped nor harmed?

    <p>Commensalism (C)</p> Signup and view all the answers

    Which of the following types of parasites lives inside the body of the host?

    <p>Endoparasite (A)</p> Signup and view all the answers

    What is the defining characteristic of a holoparasite?

    <p>Completely reliant on host for nutrients (D)</p> Signup and view all the answers

    Which term describes an organism that carries and transmits a parasite to a host?

    <p>Vector (B)</p> Signup and view all the answers

    What happens at the end of a parasitoidism interaction?

    <p>The host dies (A)</p> Signup and view all the answers

    What does the parameter 'r' represent in the Lotka-Volterra predator-prey model equations?

    <p>Intrinsic growth rate of the prey population (B)</p> Signup and view all the answers

    How is an increase in prey population (Nprey) most likely to affect the predator population (Npred) in the L-V predator-prey model?

    <p>Increase due to more food availability (B)</p> Signup and view all the answers

    Which pair of scientists independently developed the Lotka-Volterra equations in the early 20th century?

    <p>Alfred J. Lotka and Vito Volterra (B)</p> Signup and view all the answers

    In the L-V predator-prey model, what does parameter 'm' represent?

    <p>Death rate of predators (C)</p> Signup and view all the answers

    How are changes in predator and prey populations regulated according to the Lotka-Volterra equations?

    <p>By the dynamics of the predator-prey interaction (B)</p> Signup and view all the answers

    What is a characteristic feature of many predator-prey interactions in nature?

    <p>Cyclic fluctuations in population sizes (B)</p> Signup and view all the answers

    In a symbiotic relationship, which type involves both organisms benefiting from the interaction?

    <p>Mutualism (C)</p> Signup and view all the answers

    Which factor represents the birth rate of predators in a predator-prey system?

    <p>acNpredNpreyacNpredNprey (C)</p> Signup and view all the answers

    What type of interaction describes one organism benefiting at the expense of another organism?

    <p>Parasitism (D)</p> Signup and view all the answers

    What is the term used to describe a close and long-term interaction between two different species living together?

    <p>Symbiosis (C)</p> Signup and view all the answers

    What is the primary reason why the world appears green?

    <p>Absorption of red and blue light by chlorophyll (C)</p> Signup and view all the answers

    Which process is crucial for plants to convert light energy into chemical energy?

    <p>Photosynthesis (A)</p> Signup and view all the answers

    In what life stages does cannibalism commonly occur?

    <p>Larvae consuming other larvae (A)</p> Signup and view all the answers

    Which pigment is crucial for photosynthesis?

    <p>Chlorophyll (A)</p> Signup and view all the answers

    How does predation influence ecosystems?

    <p>Shapes ecosystems and maintains biodiversity (C)</p> Signup and view all the answers

    Which interactions are fundamental aspects of ecological interactions?

    <p>Herbivory, carnivory, cannibalism (D)</p> Signup and view all the answers

    Which organisms are responsible for the conversion of light energy in photosynthesis?

    <p>Plants, algae, cyanobacteria (B)</p> Signup and view all the answers

    In what way does chlorophyll contribute to plants appearing green?

    <p>Reflecting green light (D)</p> Signup and view all the answers

    What is the role of chlorophyll in plants?

    <p>Conversion of sunlight into chemical energy through photosynthesis (B)</p> Signup and view all the answers

    Which term refers to the act of juveniles consuming weaker members of their own species?

    <p>Cannibalism (A)</p> Signup and view all the answers

    More Like This

    Urie Bronfenbrenner's Ecological Theory
    10 questions
    Bronfenbrenner's Ecological Theory Quiz
    32 questions
    Sociale Ontwikkeling en Taalontwikkeling
    45 questions
    Use Quizgecko on...
    Browser
    Browser