Portlandia-dominated Communities in the Arctic: Taxonomic Composition and Structure along the Geographical Gradient

Autor:	T. V. Neretina, A. A. Udalov, A. I. Chava, Vadim Mokievsky, U. V. Simakova, V. N. Kokarev
Rok vydání:	2020
Předmět:	010504 meteorology & atmospheric sciences biology Ecology Fauna Portlandia 010502 geochemistry & geophysics biology.organism_classification 01 natural sciences The arctic Common species Arctic Benthos Benthic zone Genus Earth and Planetary Sciences (miscellaneous) General Earth and Planetary Sciences geographic locations Geology 0105 earth and related environmental sciences
Zdroj:	Doklady Earth Sciences. 493:645-648
ISSN:	1531-8354 1028-334X
DOI:	10.1134/s1028334x20080140
Popis:	The species composition and structure of bottom communities with a predominance of bivalve mollusks of the Portlandia genus, which are widespread on the shelf of the Russian Arctic, were analyzed. Molecular genetic analysis confirmed that Portlandia aestuariorum and P. arctica are valid species; it has been shown that all P. arctica from different regions belong to the same species regardless their morphological variations. Ten different variants of benthic communities from the White, Kara, Laptev, and East Siberian seas were described, in which P. aestuariorum and P. arctica play the dominant role. No associated species complexes have been identified for Portlandia spp. Communities practically do not have common species, and their composition and structure are determined by the selection of species with similar ecological preferences from the local fauna. The differences in communities are determined by both geographical and environmental factors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::203df75b583ce3a315925c0e7e06a212 https://doi.org/10.1134/s1028334x20080140 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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