Lotka-Volterra — dP/dt predador
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
The Lotka-Volterra predator dP/dt calculator models predator population dynamics in ecological systems using the equation dP/dt = cHP − dP. Here, c represents the predator conversion efficiency from prey, H is prey population density, P is predator population density, and d is the natural mortality rate of predators.
The equation accounts for two main factors: population growth through predator-prey interactions (term cHP) and decline due to natural mortality (term dP). This tool is useful for predicting population fluctuations in systems with predator-prey relationships, such as terrestrial and marine ecosystems.
It is primarily used in theoretical ecology research, natural resource management, and population dynamic simulations. However, the simplified model ignores factors like environmental disasters, migration, or intraspecific competition, which may limit its application to complex real-world systems.
Frequently asked questions
What formula is used in the predator dP/dt calculator?
The formula is dP/dt = cHP − dP, where c is conversion efficiency, H is prey density, P is predator density, and d is natural mortality rate.
What data do I need to input for the calculation?
Provide values for H (prey density), P (predator density), c (conversion rate), and d (mortality rate).
What is the purpose of this calculation in ecology?
It predicts predator population density changes in systems with prey-predator interactions, such as ecological balance studies.
Are there important model limitations?
Yes, it ignores intraspecific competition among predators, resource variability, and unforeseen environmental changes.