| Its migrations consisting more of altitudinal movements than of longitudinal. |
| In reality, the assumption is sound only if the altitudinal distribution of migrants is uniform. |
| The reserve protects a sample of the complete altitudinal sequence of Charlevoix mountain vegetation. |
| Vegetation change across altitudinal gradients tends to be gradual and variable and is interpreted variously by different authorities. |
| The altitudinal distribution of Earth-surface processes is controlled by all these factors. |
| There are five altitudinal vegetation zones: semidesert, steppe, forest, alpine meadow, and high-altitude tundra. |
