Question 3: Based on Lotka-Volterra's models, you should be able to change just 1 parameter of your experiment (N₁, N₂, K₂, K₁) and change the outcome of question 1. 1. State which parameter you would choose to change and how you will change it. That is: you could increase N₁ II. How does changing this parameter alter the outcome? (i.e. What is the new outcome? - Do you go from 1 always species winning to coexistence? from stability to instability? coexistence to 1 species always winning? from species 1 wins to species 2 wins) III. Using concepts of interspecific, intraspecific competition and/or carrying capacity, explain why you think changing your parameter changed the outcome?

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### Question 3: Analysis Using Lotka-Volterra Models

#### Overview:
Based on Lotka-Volterra's models, you should be able to modify one parameter in your experiment (N₁, N₂, K₂, K₁) to change the outcome of question 1.

**I. Parameter Selection:**
State which parameter you would choose to change and how you will change it. For example, you could increase \( N_1 \).

**II. Effect of Parameter Change:**
How does altering this parameter affect the outcome? Consider the following scenarios:
- Transition from one species always winning to coexistence
- Moving from stability to instability
- From coexistence to one species always winning
- Changing from species 1 winning to species 2 winning

**III. Explanation of Outcome:**
Using concepts such as interspecific and intraspecific competition and/or carrying capacity, explain why you believe altering your chosen parameter resulted in the observed outcome.

---

#### Detailed Description:

**1. Parameter Choice & Modification:**
Specify the parameter you have chosen (e.g., \( N_1 \)), and describe the manner in which it will be altered (e.g., increasing \( N_1 \) by a specific amount or percentage).

**2. Outcome Variation:**
Evaluate and describe how the change in the chosen parameter influences the outcome. Consider whether the change led to:
- A shift from a dominant species scenario to a balance where both species coexist
- A change from a stable system to one with fluctuations
- A reversal in which species is dominant

**3. Theoretical Explanation:**
Elaborate on the theoretical basis for the changes observed. Incorporate principles such as:
- **Interspecific Competition:** How the interactions between different species affect their populations.
- **Intraspecific Competition:** How population density within a species impacts its own growth and survival.
- **Carrying Capacity (K):** The maximum population size that the environment can sustain for each species.

By critically analyzing these factors, you can provide a comprehensive explanation of why changing the specific parameter led to the observed changes within the model's dynamics.

---

**Note:** If graphs or diagrams are involved, they should visually represent the altered conditions and outcomes, clearly depicting how different population parameters interact under the Lotka-Volterra model’s assumptions.
Transcribed Image Text:### Question 3: Analysis Using Lotka-Volterra Models #### Overview: Based on Lotka-Volterra's models, you should be able to modify one parameter in your experiment (N₁, N₂, K₂, K₁) to change the outcome of question 1. **I. Parameter Selection:** State which parameter you would choose to change and how you will change it. For example, you could increase \( N_1 \). **II. Effect of Parameter Change:** How does altering this parameter affect the outcome? Consider the following scenarios: - Transition from one species always winning to coexistence - Moving from stability to instability - From coexistence to one species always winning - Changing from species 1 winning to species 2 winning **III. Explanation of Outcome:** Using concepts such as interspecific and intraspecific competition and/or carrying capacity, explain why you believe altering your chosen parameter resulted in the observed outcome. --- #### Detailed Description: **1. Parameter Choice & Modification:** Specify the parameter you have chosen (e.g., \( N_1 \)), and describe the manner in which it will be altered (e.g., increasing \( N_1 \) by a specific amount or percentage). **2. Outcome Variation:** Evaluate and describe how the change in the chosen parameter influences the outcome. Consider whether the change led to: - A shift from a dominant species scenario to a balance where both species coexist - A change from a stable system to one with fluctuations - A reversal in which species is dominant **3. Theoretical Explanation:** Elaborate on the theoretical basis for the changes observed. Incorporate principles such as: - **Interspecific Competition:** How the interactions between different species affect their populations. - **Intraspecific Competition:** How population density within a species impacts its own growth and survival. - **Carrying Capacity (K):** The maximum population size that the environment can sustain for each species. By critically analyzing these factors, you can provide a comprehensive explanation of why changing the specific parameter led to the observed changes within the model's dynamics. --- **Note:** If graphs or diagrams are involved, they should visually represent the altered conditions and outcomes, clearly depicting how different population parameters interact under the Lotka-Volterra model’s assumptions.
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