Question

The population dynamics of a species is governed by the discrete model

equation

where r and k are positive constants. Determine the steady states and discuss the stability of the model. Find the value of r at which first bifurcation occurs. Describe qualitatively the behaviors of the population forequation. Since a species becomes extinct if xn ≤1 1 for any n> 1, show using iterations, that irrespective of the size of r> 1 the species could become extinct if the carrying capacity k equation

20 Feb 2025
Answer :
Word Count : 545
### Discrete Model for Population Dynamics The given population dynamics model is: \[ x_{n+1} = x_n \exp\left[r \left( 1 - \frac{x_n}{K} \right) \right] \] where: - \(x_n\) represents the population at time step \(n\), - \(r\) is the growth rate, - \(K\) is the carrying capacity. ### Steady States of the Model A steady state occurs when the population remains constant over time, meaning \(x_{n+1} = x_n = x^*\). Substituting \(x^*\) into the equation: \[ x^* = x^* \exp\left[r \left(1 - \frac{x^*}{K} \right)\right] \] This can be simplified to: \[ 1 = \exp\left[r \left( 1 - \frac{x^*}{K} \right)\right] \] Taking the natural logarithm of both sides: \[ 0 = r \left( 1 - \frac{x^*}{K} \right) \] From this equation, we find two possible steady states: 1. \( x^* = K \), which is the carrying capacity ___ __________ _____ _______ ________ __________ ______ ____ ________ ________ _______.
________ _____ ___ __________ _________ _______ ____ __________ ____.
____ _______ _____ __________ __________ _______ ___ ___.
___ _______ _________ __________ __________ ________ ______ _______ _____ _____ __________ ____.
__________ _____ ______ ___ ______ _______ ___ ____ _____.
__________ ______ ______ ________ _______ _________ ___ __________ _________ _____ __________ __________.
___ ______ _______ _______ _________ _____ ________ ___.
________ __________ _________ ____ ____ ________ ____ ________ _____.
____ _____ ________ ____ _____ ______ ________ _______ ____ ____.
_______ _____ ________ ____ ____ ____ ____ _____ ______ _______.
__________ ____ _________ ________ __________ _______.
______ __________ ______ ______ __________ ________ __________ ___.
______ _____ __________ ________ _________ ______ ______ ____ __________.
__________ __________ _______ __________ _________ _____ ________ _____ ______.
__________ ______ _______ _______ ____ ___ __________.
______ ________ _____ _______ ___ ___.
___ __________ ____ __________ ______.
_________ ___ _____ _____ __________ ___ ____ __________ ________ ___ ___ _____.
_______ _______ _________ _______ _____ __________.
_______ __________ ______ ___ __________ ____.
______ ____ _________ ________ __________ _________ ______ _________ ____ _________.
______ _________ ______ __________ ________ ___.
_____ ___ ____ _____ _____.
___ ________ ________ ___ __________ _____ _________.
__________ __________ ______ _________ _______ ___ ___.
_____ __________ ___ __________ ___.
_________ ___ _________ _________ ___.
_____ ____ ____ ____ _____ _____.
_______ _______ _____ ____ ___ _________ _____ _____.
__________ _____ _____ ___ ______ ____.
___ ____ _______ ____ ________ _____ ______ ____ ____ ____.
__________ ____ ___ __________ _____ _______ _____.
____ __________ _________ ________ ___.
__________ __________ ________ ________ _______.
________ _____ __________ __________ _________ _______ ______ ________ __________ __________ _____.
___ _____ ______ _____ _______ _______ ____ __________ __________ ______.
__________ ___ _____ ______ ____ ________ ________ ________ _____.
___ ________ ____ ____ _______ ____ _______ ____ ________ _______.
__________ ____ _____ _________ ______ _______ ________ __________.
_______ ___ __________ _____ ____ ___ __________ ________ ____ ____ ________ _____.
___ _____ ______ _______ ____ ___ ___ _______ ____ ____ ____ _______.
_________ _________ _____ _______ _________ ________ ___ __________ _______ ___.
____ ______ ______ _______ _______ _________ _________ _______ _____ _________.
______ ___ _________ _______ ____ ________ _____ ___ __________ _____.
____ _______ ___ _____ __________ ___ __________ _________ ________ _________ ______ __________.
___ ________ __________ _________ _____ _________.
_______ _____ __________ ______ ______ _________ _______ ________ ______ ___.
___ __________ ___ _____ ________ _________ ________ _____ ______ ____ ____.
_________ _____ ________ _______.
Get Full Answer on WhatsApp
IGNOU NEWS
Assignment Submission Last Date Extended Till 30 June 2026 Click Here★★★IGNOU June 2026 TEE Date Sheet Released Click Here★★★
Top
📞
Call Support Instant phone assistance The population dynamics of a species is governed by the discrete model
🟢
WhatsApp Chat Fast live messaging
Email Us Business enquiries & support