Ecological Niches

“A niche is not a species' address: it is the conditions, resources, and interactions shaping its life.”

01 / PLAINLY

What it means, plainly

An ecological niche describes how a species uses resources, tolerates conditions, and interacts with its community.

02 / CONTEXT

A little more

The fundamental niche covers conditions where a species could persist without biotic limits; the realized niche reflects competition, predation, and actual access. It is multidimensional, not a place.

03 / WHY IT MATTERS

Why it matters

It helps explain coexistence, distribution, and invasion without reducing a species to one food or habitat.

04 / EXAMPLE

A familiar example

Two lizards live in the same tree but use different heights, times, and prey, reducing direct competition.

05 / LIMIT

What it does not mean

Habitat and niche are not synonyms: habitat is where a species lives; niche includes how it lives and interacts.

06 / NOTICE

Notice it in your day

Choose an urban bird and create five niche axes; mark which it could use and which it actually uses.

FINAL NOTE

The idea worth keeping

Describe temperature, resources, time, space, and interactions instead of assigning one label.

QUESTIONS / 02

Questions people still have

Can two species occupy the same niche?

They can overlap, but strong sustained competition often favors partitioning, displacement, or local exclusion.

Does a niche remain constant?

No. It shifts with life stage, behavior, evolution, seasons, and the presence of other species.