Limiting Factors in Ecology

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Organisms with better adaptations to obtain resources have more time to reproduce and increase population density.
Competition for resources leads to a lower carrying capacity, reducing the maximum population density. (correct)
Limited resources prevent reproduction for all organisms, resulting in limited population growth.
Organisms that cannot compete for resources will emigrate to find new areas, leading to a decrease in local population density.

Predator populations always increase at the same rate as prey populations.
Decreases in prey populations directly lead to increases in predator populations.
Predator and prey populations are independent of each other, with no impact on population density.
Predator populations increase as a result of plentiful prey, leading to a decrease in prey population density. (correct)

<p>Increased competition for resources leads to a decrease in population density. (D)</p> Signup and view all the answers

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

Infectious diseases and parasites negatively impact populations in densely populated areas.

Better adapted organisms reproduce more often, while less adapted struggle, affecting population size.

Predators thrive when prey is abundant but decline as prey decreases, leading to population fluctuation.

The maximum population size that an environment can sustain based on available resources.

Signup and view all the flashcards

The movement of individuals out of a population to find better resources when carrying capacity is reached.

Signup and view all the flashcards

Diseases and Parasites: Infectious diseases and parasites affect densely populated areas, reducing populations.
Competition: Organisms with better adaptations for obtaining resources (food) reproduce more often. This leads to population growth. Organisms lacking these adaptations struggle, reproduce less, and their populations decrease.
Predation: Predators thrive when prey is abundant, increasing their population. As more prey is eaten, the prey population decreases. Predator populations eventually reach a carrying capacity. Once at carrying capacity, predators compete for prey, and populations decrease due to insufficient food.
Emigration: As a population approaches its carrying capacity, individuals emigrate (leave) to find more resources for survival and reproduction. This leads to a decrease in the population size.