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reference : Signs of critical transition in the Everglades wetlands in response to climate and anthropogenic changes

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Signs of critical transition in the Everglades wetlands in response to climate and anthropogenic changes
Bibliographic fields
reftype Journal Article
Abstract The increasing pressure of climatic change and anthropogenic activities is predicted to have major effects on ecosystems around the world. With their fragility and sensitivity to hydrologic shifts and land-use changes, wetlands are among the most vulnerable of such ecosystems. Focusing on the Everglades National Park, we here assess the impact of changes in the hydrologic regime, as well as habitat loss, on the spatial configuration of vegetation species. Because the current structuring of vegetation clusters in the Everglades exhibits power-law behavior and such behavior is often associated with self-organization and dynamics occurring near critical transition points, the quantification and prediction of the impact of those changes on the ecosystem is deemed of paramount importance. We implement a robust model able to identify the main hydrologic and local drivers of the vegetation species spatial structuring and apply it for quantitative assessment. We find that shifts in the hydropatterns will mostly affect the relative abundance of species that currently colonize specific hydroperiod niches. Habitat loss or disruption, however, would have a massive impact on all plant communities, which are found to exhibit clear threshold behaviors when a given percentage of habitable habitat is lost.
Author Foti, Romano del Jesus, Manuel Rinaldo, Andrea Rodriguez-Iturbe, Ignacio
DOI 10.1073/pnas.1302558110
Date April 1, 2013
Issue 16
Journal Proceedings of the National Academy of Sciences
Pages 6296-6300
Title Signs of critical transition in the Everglades wetlands in response to climate and anthropogenic changes
Volume 110
Year 2013
Bibliographic identifiers
.reference_type 0
_chapter ["Ch. 25: Coastal Zone FINAL"]
_record_number 3776
_uuid 497e2536-1556-4905-a4b1-93fa2175e3b5