Natality means production of new individuals (offspring). 

Maximum or Absolute natality - maximum offspring produced under most suitable environmental conditions. 

Ecological natality - refers to number of offspring produced under prevailing environmental conditions.

TLS Online TPP Program

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#Unit 10. Ecological Principles

Amensalism- One species has a strong effect on another, but the reverse effect is negligible.

TLS Online TPP Program

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#Unit 10. Ecological Principles

Allelopathy- Asymmetric competition can be observed between plants, where one species produces and secretes chemicals from its roots that inhibit the growth of another species.

TLS Online TPP Program

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#Unit 10. Ecological Principles

Apparent competition- Two species do not compete for the same resource but they do share at least one natural enemy.

TLS Online TPP Program

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#Unit 10. Ecological Principles

Intraspecific competition should be more severe than interspecific competition, since resource overlap is greater.

TLS Online TPP Program

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#Unit 10. Ecological Principles

The strength of interspecific competition is greater between more closely related species or species in similar guilds.

TLS Online TPP Program

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#Unit 10. Ecological Principles

The strength of interspecific competition increases with decreased resources.