Geometric Analysis of Regime Shifts in Coral Reef Communities
| Autor: | Edward W. Tekwa, Ariel Greiner, Michael M. Webster, Malin L. Pinsky, Lisa C. McManus, Madhavi A. Colton |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Geometric analysis media_common.quotation_subject Stability (probability) 010603 evolutionary biology 01 natural sciences Competition (biology) Intraspecific competition 03 medical and health sciences Alternative stable state Quantitative Biology::Populations and Evolution Dominance (ecology) Regime shift 14. Life underwater Statistical physics Ecology Evolution Behavior and Systematics Bifurcation media_common 030304 developmental biology 0303 health sciences geography geography.geographical_feature_category Ecology 010604 marine biology & hydrobiology Coral reef 15. Life on land Sea surface temperature Habitat Environmental science |
| Popis: | Coral reefs are among the many communities believed to exhibit regime shifts between alternative stable states, single-species dominance, and coexistence. Proposed drivers of regime shifts include changes in grazing, spatial clustering, and ocean temperature. Here we distill the dynamic regimes of coral-macroalgal interaction into a three-dimensional geometry, akin to thermodynamic phase diagrams of state transitions, to facilitate analysis. Specific regime-shifting forces can be understood as bifurcation vectors through the cubic regime geometry. This geometric perspective allows us to understand multiple forces simultaneously in terms of the stability and persistence of interacting species. For example, in a coral-macroalgae community, grazing on macroalgae can lead to alternative stable states when there is no spatial clustering (e.g., high habitat connectivity). However, with spatial clustering, grazing can lead to coexistence because of elevated local intraspecific competition. The geometrical analysis of regime shifts is applicable to any two-species communities and can help conservation efforts navigate complexity and abrupt changes. |
| Databáze: | OpenAIRE |
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