# use-trophic-level
Primitive trophic-level vocabulary.
use-trophic-level models descriptive trophic levels and roles plus non-negative trophic position values. It does not calculate trophic position from isotope data, model energy pyramids, or simulate food chains.
## Example
```rust
use use_trophic_level::{TrophicLevel, TrophicPosition, TrophicRole};
let role = TrophicRole::new("reef grazer").unwrap();
let position = TrophicPosition::new(2.0).unwrap();
assert_eq!(TrophicLevel::PrimaryConsumer.to_string(), "primary-consumer");
assert_eq!(role.to_string(), "reef grazer");
assert_eq!(position.get(), 2.0);
```
## Scope
- descriptive trophic levels and roles
- non-negative trophic position values
## Non-goals
- isotope-derived trophic position calculation
- energy pyramid modeling
- food-chain simulation
## License
Licensed under either of the following, at your option:
- MIT License
- Apache License, Version 2.0