WorksheetsEcology Interspecific and Intraspecific Competition
Total questions: 11
Worksheet time: 6mins
Which of these is NOT an example of interspecific competition?
Oysters and barnacles competing for settling space on the rocky shore
Goats and sheep in the same paddock competing for grass
Ferns and kawakawa competing for shaded locations in a forest
Stags competing for mates
Which of these are conditions required for two species to compete? (select all that are correct):
Live in the same habitat
Use the same resources
Active at the same time of day
Have different niches
Which of these best describes interspecific competition?
One species benefits while another species is harmed
One species benefits while another species is killed
One species is harmed and the other species is harmed too
One species benefits while nothing happens to the other species
What happens to two competing species that have exactly the same niche?
Both of them will move into their realised niches to avoid competition
One of them will move into its realised niche to avoid competing and the other better competitor will take up its fundamental niche
One of them will go extinct in the local area and the other one will take over the niche
What happens in competitive exclusion?
Both species go extinct
One species moves into its realised niche to avoid competition and the better competitor is free to take up the rest of the niche
One species goes extinct and the other takes over the fundamental niche
Which of these best describes contest competition?
One species wins the competition and the other species loses (it goes extinct in the local habitat).
One species wins the competition and the other species is forced into a smaller realised niche.
Both species lose and go extinct
Which of these is NOT a type of niche differentiation to reduce competition?
Succession
Zonation
Stratification
Allelopathy
Which of these is niche differentiation where the species avoid competing by occupying different spaces? (Select all that count):
Zonation
Succession
Stratification
Allelopathy
Which of these is a type of niche differentiation where species avoid competing by establishing at different times?
Zonation
Succession
Stratification
Allelopathy
Which of these describes secondary succession?
An ecosystem establishing on a completely new rocky island
An ecosystem establishing on an island that has been cleared by fire
Which of these is a method plants use in contest competition (also called antibiosis)?
Succession
Zonation
Stratification
Allelopathy
