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Environmental matching reveals non-uniform range-shift patterns in benthic marine Crustacea
Simões, M.V.P.; Saeedi, H.; Cobos, M.E.; Brandt, A. (2021). Environmental matching reveals non-uniform range-shift patterns in benthic marine Crustacea. Clim. Change 168(3-4): 31. https://dx.doi.org/10.1007/s10584-021-03240-8
In: Climatic Change. Kluwer Academic: Dordrecht; Boston. ISSN 0165-0009; e-ISSN 1573-1480, more
Peer reviewed article  

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Keywords
    Crustacea [WoRMS]
    Marine/Coastal; Brackish water

Authors  Top 
  • Simões, M.V.P.
  • Saeedi, H.
  • Cobos, M.E.
  • Brandt, A., more

Abstract
    Empirical and theoretical studies suggest that marine species respond to ocean warming by shifting ranges poleward and/or into deeper depths. However, future distributional patterns of deep-sea organisms, which comprise the largest ecosystem of Earth, remain poorly known. We explore potential horizontal range shifts of benthic shallow-water and deep-sea Crustacea due to climatic changes within the remainder of the century, and discuss the results in light of species-specific traits related to invasiveness. Using a maximum entropy approach, we estimated the direction and magnitude of distributional shifts for 94 species belonging to 12 orders of benthic marine crustaceans, projected to the years 2050 and 2100. Distance, direction, and species richness shifts between climate zones were estimated conservatively, by considering only areas suitable, non-extrapolative, and adjacent to the currently known distributions. Our hypothesis is that species will present poleward range-shifts, based on results of previous studies. Results reveal idiosyncratic and species-specific responses, with prevailing poleward shifts and a decline of species richness at mid-latitudes, while more frequent shifts between temperate to polar regions were recovered. Shallow-water species are expected to shift longer distances than deep-sea species. Net gain of suitability is slightly higher than the net loss for shallow-water species, while for deep-sea species, the net loss is higher than the gain in all scenarios. Our estimates can be viewed as a set of hypotheses for future analytical and empirical studies, and will be useful in planning and executing strategic interventions and developing conservation strategies.

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