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Form–function relationships in a marine foundation species depend on scale: A shoot to global perspective from a distributed ecological experiment

Ruesink, J. L., Stachowicz, J. J., Reynolds, P. L., Boström, C., Cusson, M., Douglass, J. G., Eklof, J., Engelen, A. H., Hori, M., Hovel, K., Iken, K., Moksnes, P-O., Nakaoka, M., O'Connor, M. I., Olsen, J., Sotka, E. E., Whalen, M. A. & Duffy, J. E., Mar-2018, In : Oikos. 127, 3, p. 364-374 11 p.

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  • Form–function relationships in a marine foundation species depend on scale

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DOI

  • Jennifer L Ruesink
  • John J Stachowicz
  • Pamela L Reynolds
  • Christoffer Boström
  • Mathieu Cusson
  • James G Douglass
  • Johan Eklof
  • Aschwin H Engelen
  • Masakazu Hori
  • Kevin Hovel
  • Katrin Iken
  • Per-Olav Moksnes
  • Masahiro Nakaoka
  • Mary I O'Connor
  • Jeanine Olsen
  • Erik E Sotka
  • Matthew A Whalen
  • J Emmett Duffy
Form–function relationships in plants underlie their ecosystem roles in supporting higher trophic levels through primary production, detrital pathways, and habitat provision. For widespread, phenotypically-variable plants, productivity may differ not only across abiotic conditions, but also from distinct morphological or demographic traits. A single foundation species, eelgrass Zostera marina, typically dominates north temperate seagrass meadows, which we studied across 14 sites spanning 32–61°N latitude and two ocean basins. Body size varied by nearly two orders of magnitude through this range, and was largest at mid-latitudes and in the Pacific Ocean. At the global scale, neither latitude, site-level environmental conditions, nor body size helped predict productivity (relative growth rate 1–2% day-1 at most sites), suggesting a remarkable capacity of Z. marina to achieve similar productivity in summer. Furthermore, among a suite of stressors applied within sites, only ambient leaf damage reduced productivity; grazer reduction and nutrient addition had no
effect on eelgrass size or growth. Scale-dependence was evident in different allometric relationships within and across sites for productivity and for modules (leaf count) relative to size. Zostera marina provides a range of ecosystem
functions related to both body size (habitat provision, water flow) and growth rates (food, carbon dynamics). Our observed decoupling of body size and maximum production suggests that geographic variation in these ecosystem functions may be independent, with a future need to resolve how local adaptation or plasticity of body size might actually enable more consistent peak productivity across disparate environmental conditions.
Original languageEnglish
Pages (from-to)364-374
Number of pages11
JournalOikos
Volume127
Issue number3
Early online date4-Dec-2017
Publication statusPublished - Mar-2018

    Keywords

  • EELGRASS ZOSTERA-MARINA, TOP-DOWN CONTROL, LIFE-HISTORY, THALASSIA-TESTUDINUM, NUTRIENT ENRICHMENT, METABOLIC THEORY, BERGMANNS RULE, LEAF GROWTH, BODY-SIZE, SEAGRASS
Related Datasets
  1. Data from: Form–function relationships in a marine foundation species depend on scale: a shoot to global perspective from a distributed ecological experiment

    Ruesink, J. L. (Creator), Stachowicz, J. J. (Creator), Reynolds, P. L. (Creator), Bostrom, C. (Creator), Cusson, M. (Creator), Douglass, J. G. (Creator), Eklof, J. (Creator), Engelen, A. H. (Creator), Hori, M. (Creator), Hovel, K. (Creator), Iken, K. (Creator), Moksnes, P. (Creator), Nakaoka, M. (Creator), O'Connor, M. I. (Creator), Olsen, J. (Creator), Sotka, E. E. (Creator), Whalen, M. A. (Creator) & Duffy, J. E. (Creator), University of Groningen, 25-Aug-2017

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ID: 54877577