> For the complete documentation index, see [llms.txt](https://docs.basin.global/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.basin.global/protocol/the-basin-protocol/purpose.md).

# PURPOSE

A PURPOSE in the BASIN Protocol are either **a ecosystem type, ecosystem service, species, cause, or motivation**.

### Subtypes & Examples of PURPOSE

{% hint style="info" %}
note: these have been converted to .ensurance accounts. ie marine-systems.ensurance
{% endhint %}

<details>

<summary>The 15 <a href="/pages/pdczqLn7jcgFi1NOMvs5">BASIN Ecosystems</a></summary>

* cultivated-developed.basin&#x20;
* urban-open-space.basin&#x20;
* rural-open-space.basin
* rivers-lakes.basin&#x20;
* inland-wetlands.basin&#x20;
* tropical-forests.basin&#x20;
* temperate-forests.basin&#x20;
* boreal-forests.basin&#x20;
* coastal-systems.basin&#x20;
* grasslands.basin&#x20;
* shrublands.basin&#x20;
* polar-alpine.basin&#x20;
* deserts.basin&#x20;
* subterranean.basin
* marine-systems.ensurance

</details>

<details>

<summary>The 18 <a href="/pages/Zi9YuXR5oRsiZ3agrlyk">Core Benefits of Natural Capital</a></summary>

* clean-air.basin&#x20;
* clean-water.basin&#x20;
* water-abundance.basin&#x20;
* healthy-soils.basin&#x20;
* climate-stability.basin&#x20;
* risk-resilience.basin&#x20;
* erosion-control.basin&#x20;
* pest-disease-control.basin&#x20;
* pollination.basin&#x20;
* habitat.basin&#x20;
* medicinal-genetic.basin&#x20;
* recreation-experiences.basin&#x20;
* research-learning.basin&#x20;
* art-inspiration.basin&#x20;
* aesthetic-sensory.basin&#x20;
* existence-legacy.basin&#x20;
* resource-utilization.basin&#x20;
* land-utilization.basin

</details>