Assessing effects of genetic, environmental, and biotic gradients in species distribution modelling

J. Benjamin Lowen, Devorah R. Hart, Ryan R.E. Stanley, Sarah J. Lehnert, Ian R. Bradbury, Claudio Dibacco, Lorenz Hauser

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19 Citas (Scopus)

Resumen

To develop more reliable marine species distribution models (SDMs), we examine how genetic, climatic, and biotic interaction gradients give rise to prediction error in marine SDM. Genetic lineages with distinct ecological requirements spanning genetic gradients have yet to be treated separately in marine SDM, which are often constrained to modeling the potential distribution of one biological unit (e.g. lineage or species) at a time. By comparing SDM performance for the whole species or where observation and predictions were partitioned among geographically discontinuous genetic lineages, we first identified the appropriate biological unit for modeling sea scallop. Prediction errors, in particular contiguous omissions at the northern range margins were effectively halved in genetic lineage SDM (Total error=15%) verses whole species SDM. Remaining SDM prediction error was strongly associated with: i) Sharp climatic gradients (abrupt and persistent spatial shifts in limiting temperatures) found within continental shelf breaks and bottom channels. ii) A biotic gradient in the predation of sea scallop juveniles by the sand star within the Hudson Shelf USA. Our findings highlight how the accuracy of marine SDM is dependent on capturing the appropriate biological unit for modeling (e.g. lineages rather than species) and adequately resolving limiting abiotic and biotic interaction gradients.

Idioma originalEnglish
Páginas (desde-hasta)1762-1775
Número de páginas14
PublicaciónICES Journal of Marine Science
Volumen76
N.º6
DOI
EstadoPublished - dic. 1 2019
Publicado de forma externa

Nota bibliográfica

Funding Information:
This research was supported by funding from Fisheries and Oceans Canada’s Strategic Program for Ecosystem-based Research and Advice (SPERA), and the Government of Canada’s Genomic Research Development Initiative (GRDI).

Publisher Copyright:
© 2019 International Council for the Exploration of the Sea 2019. All rights reserved.

ASJC Scopus Subject Areas

  • Oceanography
  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology

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