Document of bibliographic reference 250514

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

Trends in the diversity, distribution and life history strategy of Arctic Hydrozoa (Cnidaria)

Abstract

This is the first attempt to compile a comprehensive and updated species list for Hydrozoa in the Arctic, encompassing both hydroid and medusa stages and including Siphonophorae. We address the hypothesis that the presence of a pelagic stage (holo- or meroplanktonic) was not necessary to successfully recolonize the Arctic by Hydrozoa after the Last Glacial Maximum. Presence-absence data of Hydrozoa in the Arctic were prepared on the basis of historical and present-day literature. The Arctic was divided into ecoregions. Species were grouped into distributional categories according to their worldwide occurrences. Each species was classified according to life history strategy. The similarity of species composition among regions was calculated with the Bray-Curtis index. Average and variation in taxonomic distinctness were used to measure diversity at the taxonomic level. A total of 268 species were recorded. Arctic-boreal species were the most common and dominated each studied region. Nineteen percent of species were restricted to the Arctic. There was a predominance of benthic species over holo- and meroplanktonic species. Arctic, Arctic-Boreal and Boreal species were mostly benthic, while widely distributed species more frequently possessed a pelagic stage. Our results support hypothesis that the presence of a pelagic stage (holo- or meroplanktonic) was not necessary to successfully recolonize the Arctic. The predominance of benthic Hydrozoa suggests that the Arctic could have been colonised after the Last Glacial Maximum by hydroids rafting on floating substrata or recolonising from glacial refugia.

WebOfScience code

https://www.webofscience.com/wos/woscc/full-record/WOS:000352084200158

Bibliographic citation

Ronowicz, M.; Kuklinski, P.; Mapstone, G.M. (2015). Trends in the diversity, distribution and life history strategy of Arctic Hydrozoa (Cnidaria). PLoS One 10(3): e0120204. http://dx.doi.org/10.1371/journal.pone.0120204

Topic

Marine

Is peer reviewed

true

Access rights

open access

Is accessible for free

true