Marine Biology

, 166:44 | Cite as

Variation in aggregate descriptors of rocky shore communities: a test of synchrony across spatial scales

  • Lorena P. ArribasEmail author
  • Jorge L. Gutiérrez
  • María Bagur
  • Sabrina A. Soria
  • Pablo E. Penchaszadeh
  • M. Gabriela Palomo
Original paper


Rocky shore communities usually show complex patterns of compositional variation in space and time. Yet, this does not rule out the possibility of observing coherent temporal trends in aggregate community variables (e.g., biomass and number of species or individuals within functional groups or whole communities) due to broad-scale, seasonal, or interannual environmental controls that operate independently of local species composition. The goal of this study was to evaluate whether five aggregate community variables (mussel density, mussel biomass, algal biomass, macroinvertebrate density, and species density) show synchronous patterns of short-term, temporal variation (2 years) across eight rocky shore sites located in the Southwestern Atlantic and within two biogeographic regions (Warm Temperate Southwestern Atlantic and Magellanic). The study predictions were (1) that synchrony will increase as the spatial scale of analysis becomes smaller and, (2) that pairs of nearby sites will be more synchronized than pairs of distant ones. These predictions were weakly, if at all, supported by the data. Synchrony in aggregate community descriptors rarely occurred across the studied rocky shore sites. It can be observed at any spatial scale, and it can even fail to happen among sites located a few hundred meters apart. This suggests that local processes are overarching sources of short-term variability at the regional level, highlights the caution needed in generalizing from spatially limited time series data, and also underscores the potential limitations of climate envelope models to predict how aggregate community variables and related ecosystems functions (e.g., primary and secondary production) will respond to global climate change.



We thank Guido Pastorino for help in the taxonomic identification of mytilids, Diana Montemayor, Jesús Nuñez, Emiliano Ocampo, and Eleonor Tietze for housing during field trips. This is the contribution N° 113 of the Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos (LARBIM) and to GrIETA’s program. This manuscript benefited from the comments of Associate Editor Patrik Kraufvelin and two anonymous reviewers.


The research presented here was partly funded by CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina; PIP 112-200801-00732 to MGP and JLG), and Total Foundation Funds to SARCE (South American Research Group on Coastal Ecosystems). MB and LPA were supported by CONICET doctoral fellowships.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. Collecting permits were provided by Secretaria de Medio Ambiente y Desarrollo Sustentable, Río Negro.

Supplementary material

227_2019_3492_MOESM1_ESM.pdf (173 kb)
Supplementary material 1 (PDF 172 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Instituto de Biología de Organismos Marinos, LARBIM (IBIOMAR-CONICET)Puerto MadrynArgentina
  2. 2.Universidad Nacional de la Patagonia (UNPSJB)Puerto MadrynArgentina
  3. 3.Instituto de Geología de Costas y del Cuaternario (UNMDP-CIC) & CONICET, Universidad Nacional de Mar del PlataMar del PlataArgentina
  4. 4.Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” (MACN-CONICET)Buenos AiresArgentina
  5. 5.Grupo de Investigación y Educación en Temas Ambientales (GrIETA)San Eduardo del MarArgentina
  6. 6.Centro Austral de Investigaciones Científicas (CADIC-CONICET)Ushuaia, Tierra del FuegoArgentina

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