Multiple Representations of Topographic Pattern and Geographic Context Determine Barrier Dune Resistance, Resilience, and the Overlap of Coastal Biogeomorphic Models
Bibliographic Data
| ID | 3775832 |
|---|---|
| Authors | Li-Chih Hsu (University of Kentucky), J Anthony Stallins (0000-0002-3911-828X, University of Kentucky) |
| Year | 2020 |
| Volume | 110 |
| Issue | 3 |
| Pages | 640-660 |
| Publication date | 2020-05-03 |
| Peer Reviewed | Yes |
| Open Access | No |
| Type | ARTICLE |
| Venue | Annals of the American Association of Geographers (JOURNAL) |
| Journal identifiers | ISSN: 2469-4452 • E-ISSN: 2469-4460 |
| Publisher | Informa UK Limited (PUBLISHER • GB) |
| DOI | 10.1080/24694452.2019.1654845 |
| OpenAlex | W2979833575 |
| Language | EN |
| References cited | 83 |
We compared two biogeomorphic models that postulate how vegetation is intertwined in the response and recovery of barrier island dunes. Each model was developed in a separate coastal region using different methods. Both relied on simple elevational representations of topography. By comparing topographies among more islands of these two regions and by linking multiple representations of topographic pattern to resistance and resilience, we provide a synthesis that shows the validity of both models and the consequences of reifying one over the other. Using airborne LiDAR, topographic metrics based on point, patch, and gradient representations of topography were derived for fifty-two sites across eleven islands along the Georgia Bight and Virginia. These seventeen metrics were categorized in terms of resistance and resilience to disturbance from storm-forced high water levels and overwash. Resistance refers to intrinsic properties that directly counter expressions of power from disturbance. Resilience refers to the degrees of freedom to adjust and adapt to disturbance. Using a cross-scale data modeling approach, these data were visualized as topographic state space using multidimensional scaling. In this state space, similarity in topography as well as resistance and resilience were inferred through a site’s position along low-dimension axes representing geomorphic resistance and high-dimension axes representing the spatial landscape properties of biogeomorphic resilience. The two models overlap in how they account for barrier dune resistance and resilience along the U.S. south Atlantic coast. Islands of the Georgia Bight have a propensity for higher resistance and resilience. The Virginia islands have lower resistance and resilience. Key Words: barrier islands, biogeomorphology, cross-scale structure, dunes, resilience
Barrier island · Cartography · Geography · Geomorphology · Geotechnical engineering · Overwash · Physical geography · Shore · Aeolian processes and effects · Ecology and Vegetation Dynamics Studies · Rangeland and Wildlife Management · Ecology · Geology · Oceanography · Paleontology
Panarchy
On reductionism and emergence in geomorphology
The Influence of Complex Systems Interactions on Barrier Island Dune Vegetation Pattern and Process
Foredune Texture
Fitness spaces and their potential for visualizing change in the physical landscape
Comparing spatial patterns
River Classification as a Geographic Tool in the Age of Big Data and Global Change
| Citation velocity | historical |
|---|---|
| Highly cited | No |