Data from: Lottery coexistence on rocky shores: weak niche differentiation or equal competitors engaged in neutral dynamics?

Shinen JL, Navarrete SA

Date Published: September 25, 2013

DOI: http://dx.doi.org/10.5061/dryad.95br2

 

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Title Survey of adult barnacles and recruits in experimental plots
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Description Data from seasonal photo surveys (2008-2010) of the adult barnacles, Jehlius cirratus and Notochthamalus scabrosus, and their non-distigunshed recruits in experimental plots. Estimates of the percent cover of bare space on the rock surface are included. Plots were established and monitored at four localities (Temblador, Guanaqueros, ECIM, and Matanzas) separated by 10s to 100s of km and at three high intertidal elevations (high, mid, and low barnacle zones).
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Title Barnacle recruitment monitoring 2009-2010
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Description Recruitment onto 10x10 cm2 plexiglass plates covered with a standard rugosity surface (Safety Walk, 3M) that were replaced once monthly over the peak recruitment season of 2009-2010 (Nov-Apr). Five plates were deployed and retrieved from the high, mid, and low barnacle subzones at four localities then taken to the laboratory where newly metamorphosed spat and cyprid larvae were identified to species level under a dissecting microscope. The time plates were exposed in the field varied somewhat depending on tidal cycles and sea conditions.
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Title Barnacle growth under crowding conditions
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Description Size data of adult Jehlius (j) and Notochthamalus (n) collected from experimental plots where focal individuals were photographed seasonally under under three different “crowding conditions”: 1) ‘isolated individuals’ with less than 25% of their shells in contact with neighboring barnacles of any species; 2) ‘conspecific crowding’ individuals that were in aggregated groups, with a minimum of 50% and up to 100% of their shells in contact with other adult individuals of the same species, and 3) ‘heterospecific crowding’ individuals that were in aggregated groups with 50-100% of their shells in contact with adults of the other species. The maximum opercular carino-rostral length, survival, percent contact with and number of neighboring individuals were recorded roughly every 3 months.
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When using this data, please cite the original publication:

Shinen JL, Navarrete SA (2014) Lottery coexistence on rocky shores: weak niche differentiation or equal competitors engaged in neutral dynamics? The American Naturalist 183(3): 342-362. http://dx.doi.org/10.1086/674898

Additionally, please cite the Dryad data package:

Shinen JL, Navarrete SA (2014) Data from: Lottery coexistence on rocky shores: weak niche differentiation or equal competitors engaged in neutral dynamics? Dryad Digital Repository. http://dx.doi.org/10.5061/dryad.95br2
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