Show simple item record

dc.contributor.authorMitra, Aditee  Concept link
dc.contributor.authorFlynn, Kevin J.  Concept link
dc.contributor.authorTillmann, Urban  Concept link
dc.contributor.authorRaven, John A.  Concept link
dc.contributor.authorCaron, David A.  Concept link
dc.contributor.authorStoecker, Diane K.  Concept link
dc.contributor.authorNot, Fabrice  Concept link
dc.contributor.authorHansen, Per J.  Concept link
dc.contributor.authorHallegraeff, Gustaaf M.  Concept link
dc.contributor.authorSanders, Robert W.  Concept link
dc.contributor.authorWilken, Susanne  Concept link
dc.contributor.authorMcManus, George  Concept link
dc.contributor.authorJohnson, Matthew D.  Concept link
dc.contributor.authorPitta, Paraskevi  Concept link
dc.contributor.authorVåge, Selina  Concept link
dc.contributor.authorBerge, Terje  Concept link
dc.contributor.authorCalbet, Albert  Concept link
dc.contributor.authorThingstad, Frede  Concept link
dc.contributor.authorJeong, Hae Jin  Concept link
dc.contributor.authorBurkholder, JoAnn M.  Concept link
dc.contributor.authorGlibert, Patricia M.  Concept link
dc.contributor.authorGraneli, Edna  Concept link
dc.contributor.authorLundgren, Veronica  Concept link
dc.identifier.citationProtist 167 (2016): 106–120en_US
dc.description© The Author(s), 2016. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Protist 167 (2016): 106–120, doi:10.1016/j.protis.2016.01.003.en_US
dc.description.abstractArranging organisms into functional groups aids ecological research by grouping organisms (irrespective of phylogenetic origin) that interact with environmental factors in similar ways. Planktonic protists traditionally have been split between photoautotrophic “phytoplankton” and phagotrophic “microzooplankton”. However, there is a growing recognition of the importance of mixotrophy in euphotic aquatic systems, where many protists often combine photoautotrophic and phagotrophic modes of nutrition. Such organisms do not align with the traditional dichotomy of phytoplankton and microzooplankton. To reflect this understanding, we propose a new functional grouping of planktonic protists in an eco-physiological context: (i) phagoheterotrophs lacking phototrophic capacity, (ii) photoautotrophs lacking phagotrophic capacity, (iii) constitutive mixotrophs (CMs) as phagotrophs with an inherent capacity for phototrophy, and (iv) non-constitutive mixotrophs (NCMs) that acquire their phototrophic capacity by ingesting specific (SNCM) or general non-specific (GNCM) prey. For the first time, we incorporate these functional groups within a foodweb structure and show, using model outputs, that there is scope for significant changes in trophic dynamics depending on the protist functional type description. Accordingly, to better reflect the role of mixotrophy, we recommend that as important tools for explanatory and predictive research, aquatic food-web and biogeochemical models need to redefine the protist groups within their frameworks.en_US
dc.description.sponsorshipThis work was funded by grants to KJF and AM from the Leverhulme Trust (International Network Grant F00391 V) and NERC (UK) through its iMARNET programme NE/K001345/1.en_US
dc.rightsAttribution 4.0 International*
dc.subjectPlankton functional types (PFTs)en_US
dc.titleDefining planktonic protist functional groups on mechanisms for energy and nutrient acquisition : incorporation of diverse mixotrophic strategiesen_US

Files in this item


This item appears in the following Collection(s)

Show simple item record

Attribution 4.0 International
Except where otherwise noted, this item's license is described as Attribution 4.0 International