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dc.contributor.authorSheppard, Lawrence W.
dc.contributor.authorDefriez, Emma J.
dc.contributor.authorReid, Philip C.
dc.contributor.authorReuman, Daniel C.
dc.identifier.citationSheppard LW, Defriez EJ, Reid PC,Reuman DC (2019) Synchrony is more than its top-down and climatic parts: Interacting Moran effects on phytoplankton in British seas. PLoS Comput Biol 15(3): e1006744.
dc.descriptionThis work is licensed under a Creative Commons Attribution 4.0 International License.en_US
dc.description.abstractLarge-scale spatial synchrony is ubiquitous in ecology. We examined 56 years of data representing chlorophyll density in 26 areas in British seas monitored by the Continuous Plankton Recorder survey. We used wavelet methods to disaggregate synchronous fluctuations by timescale and determine that drivers of synchrony include both biotic and abiotic variables. We tested these drivers for statistical significance by comparison with spatially synchronous surrogate data. Identification of causes of synchrony is distinct from, and goes beyond, determining drivers of local population dynamics. We generated timescale-specific models, accounting for 61% of long-timescale (> 4yrs) synchrony in a chlorophyll density index, but only 3% of observed short-timescale (< 4yrs) synchrony. Thus synchrony and its causes are timescale-specific. The dominant source of long-timescale chlorophyll synchrony was closely related to sea surface temperature, through a climatic Moran effect, though likely via complex oceanographic mechanisms. The top-down action of Calanus finmarchicus predation enhances this environmental synchronising mechanism and interacts with it non-additively to produce more long-timescale synchrony than top-down and climatic drivers would produce independently. Our principal result is therefore a demonstration of interaction effects between Moran drivers of synchrony, a new mechanism for synchrony that may influence many ecosystems at large spatial scales.en_US
dc.publisherPublic Library of Scienceen_US
dc.rights© 2019 Sheppard et al.en_US
dc.titleSynchrony is more than its top-down and climatic parts: Interacting Moran effects on phytoplankton in British seasen_US
kusw.kuauthorSheppard, Lawrence W.
kusw.kuauthorReuman, Daniel C.
kusw.kudepartmentEcology & Evolutionary Biologyen_US
kusw.kudepartmentKansas Biological Surveyen_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US

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© 2019 Sheppard et al.
Except where otherwise noted, this item's license is described as: © 2019 Sheppard et al.