Fundamental and Realized Niches

The video tutorial discusses the concepts of fundamental and realized niches, explaining their definitions, differences, and providing an example using chatamalas and balanus species. It covers the role of competition in determining these niches and includes a graphical representation. The video concludes with a summary of key points and a call to action for viewers to subscribe.

What is the primary focus of the video session?

• The impact of climate change on niches

• The differences between ecosystems

• The life cycle of marine species

• Fundamental and realized niches

What does intra-specific competition refer to?

• Competition in different ecosystems

• Competition for different resources

• Competition within the same species

• Competition between different species

Which type of niche exists in the absence of competition?

• Tropical niche

• Realized niche

• Ecological niche

• Fundamental niche

What is a realized niche?

• A niche in the presence of competition

• A niche that is larger in size

• A niche without any limiting factors

• A niche that is theoretical

Which species can survive in both deep and shallow waters?

• Balanus species

• Chthamalus species

• Neither species

• Both species

What happens to Chthamalus species in the presence of Balanus species?

• They are outcompeted to the upper zone

• They thrive in both zones

• They occupy the lower zone

• They become extinct

What is another name for the fundamental niche?

• Limiting niche

• Actual niche

• Post-competitive niche

• Pre-competitive niche

How is the realized niche described in terms of size?

• Not related to size

• Larger than the fundamental niche

• Smaller than the fundamental niche

• Equal in size to the fundamental niche

What does the fundamental niche explain?

• The environmental impact on species

• The actual living conditions of a species

• The theoretical roles of a species

• The competition between species

What is the key factor that differentiates fundamental and realized niches?

• Availability of resources

• Type of ecosystem

• Presence of competition

• Size of the species