Intraspecific and Interspecific Interactions

The video tutorial explains the concept of community interactions, defining a community as a group of various species in a common location. It discusses how species interact in positive, negative, or neutral ways, and classifies these interactions into intraspecific (within the same species) and interspecific (between different species). Examples include competition among chimps for resources and between gray and red squirrels for habitat. The tutorial also provides a mnemonic to differentiate interspecific and intraspecific interactions.

What is a community in ecological terms?

• A single species living in isolation

• A group of non-living elements in an ecosystem

• An interacting group of various species in a common location

• A group of the same species living together

Which of the following is an example of intraspecific competition?

• Gray squirrels and red squirrels competing for habitat

• Chimps fighting over a piece of fruit

• Birds and bees competing for nectar

• Different species of plants competing for sunlight

Intraspecific interactions occur between:

• Members of the same species

• Different ecosystems

• Members of different species

• Non-living elements

Which type of interaction involves members of the same species?

• Intraspecific

• Neutral

• Interspecific

• Competitive

Which of the following is an example of interspecific competition?

• Two male blackbirds fighting over a female

• Gray squirrels and red squirrels competing for the same habitat

• Chimps fighting over a piece of fruit

• Plants of the same species competing for water

Which interaction involves competition between different species for resources?

• Intraspecific interaction

• Interspecific interaction

• Neutral interaction

• Non-competitive interaction

What is an example of interspecific interaction involving plants?

• Two male blackbirds fighting over a female

• Chimps fighting over fruit

• Different species of plants competing for light

• Gray squirrels and red squirrels competing for habitat

What is the effect of the gray squirrel on the red squirrel population?

• They coexist peacefully

• The gray squirrel has pushed the red squirrel out

• The red squirrel has increased in number

• The red squirrel has pushed the gray squirrel out

What is the main difference between interspecific and intraspecific interactions?

• Both occur between different species

• Both occur within one species

• Interspecific interactions occur between different species, while intraspecific occur within one species

• Interspecific interactions occur within one species, while intraspecific occur between different species

How can you remember the difference between interspecific and intraspecific interactions?

• Intraspecific is like national, involving different species

• Interspecific is like national, involving one species

• Intraspecific is like international, involving different species

• Interspecific is like international, involving different species