Evaluation of the gap intercept method to measure rangeland connectivity
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Abstract
Characterizing the connectivity of materials, organisms, and energy on rangelands is critical to understanding and managing ecosystem response to disturbances. For over twenty years, scientists and rangeland managers have used the gap intercept method to monitor connectivity. However, using gap intercept measurements to infer ecosystem processes or inform management actions and conservation practices on rangelands has been limited because there are few tools and syntheses to help managers pragmatically interpret gap measurements. In this synthesis, we review the different ways the gap intercept method is conducted and highlight considerations when collecting and using gap intercept data. We discuss what is known about how gap intercept data can be used to assess wind and water erosion, biocrust abundance and composition, soil fertility, plant community dynamics, wildlife habitat characteristics, and fuel connectivity and fire behavior. Finally, we identify emerging opportunities regarding the collection and use of gap intercept data to assess rangeland connectivity, ecosystem function, and ecological processes. Through this synthesis we demonstrate the value of the gap intercept method, particularly “all-plant” (i.e., whole-community) canopy gap, in supporting assessments of rangeland condition and vulnerability, and in planning future management actions.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Evaluation of the gap intercept method to measure rangeland connectivity |
| Series title | Rangeland Ecology & Management |
| DOI | 10.1016/j.rama.2024.09.001 |
| Volume | 98 |
| Year Published | 2025 |
| Language | English |
| Publisher | Elsevier |
| Contributing office(s) | Forest and Rangeland Ecosystem Science Center, Southwest Biological Science Center, Western Ecological Research Center |
| Description | 19 p. |
| First page | 297 |
| Last page | 315 |