The range of abiotic and biotic conditions under which a species persists is its realized niche. 

The realized niche determines the geographic range of a species or of various populations that compose a species.

TLS Online TPP Program

#Id: 5501

#XL - T Zoology

Ruderals - Ruderals are adapted to take advantage of habitat disturbance, (High disturbance,  low competition,  low stress tolerance)

Ex - Insect , annual species

TLS Online TPP Program

#Id: 5502

#XL - T Zoology

Competitors – Competitors are adapted to live in highly competitive

Many tree species, large vertebrate carnivores and herbivores in forests or grasslands.

TLS Online TPP Program

#Id: 5503

#XL - T Zoology

Stress tolerators can survive and reproduce under extreme environmental conditions, such as very low water availability, very cold temperatures, or high salt concentrations.

Ex - Lichen, Mangrove plant, cacti, Deserts animal.

TLS Online TPP Program

#Id: 5504

#XL - T Zoology

Intermediate - Many perennial herbs adopt a mixture of these strategies and tend to lie in the center of Grime’s triangle.One cannot be a good stress tolerator and a good competitor at the same time

TLS Online TPP Program

#Id: 5505

#XL - T Zoology

Metapopulations

Separate Populations That Mutually Affect One Another via Dispersal Fragmented landscapes create fragmented populations, many of which may exchange individuals via migration, creating one linked population

TLS Online TPP Program

#Id: 5506

#XL - T Zoology

If individuals in one patch go extinct, other individuals in other patches survive, and they supply individuals