STORM-INDUCED COMMUNITY DYNAMICS IN THE FEZOUATA BIOTA (LOWER ORDOVICIAN,MOROCCO)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F18%3A00000225" target="_blank" >RIV/00025798:_____/18:00000225 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.2110/palo.2018.055" target="_blank" >http://dx.doi.org/10.2110/palo.2018.055</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2110/palo.2018.055" target="_blank" >10.2110/palo.2018.055</a>

Jazyk výsledku

angličtina

Název v původním jazyce

STORM-INDUCED COMMUNITY DYNAMICS IN THE FEZOUATA BIOTA (LOWER ORDOVICIAN,MOROCCO)

Popis výsledku v původním jazyce

In the Central Anti-Atlas (Morocco), the lower part of the Fezouata Shale has yielded locally abundant remains of soft-bodied to lightly sclerotized taxa, occurring in low diversity assemblages characterized bystrong spatial and taxonomic heterogeneities, and frequently, by the occurrence of small-sized individuals. Sizefrequency analyses of Celdobolus sp., Wosekella sp. (both linguliformean brachiopods) and Babinka prima (babinkid bivalve) collected in deposits of the Fezouata Shale and associated with distinct paleoenvironmental conditions show that short-lived communities of epifaunal and shallow infaunal taxa were regularly smothered and killed by distalstorm deposits. Small-sized individuals more likely represent juveniles, rather than ‘dwarfed’ adults (Lilliput Effect).Consequently, unstable environmental conditions (regular storms, and possibly low oxygenation of the water column)probably explain the unusual community dynamics of late Tremadocian assemblages of the Fezouata Biota (high density of individuals, low a-diversity, and high c-diversity), interpreted as short-lived, opportunistic populations. This process has wider implications for the understanding of occurrences of small individuals elsewhere in the fossil record.

Název v anglickém jazyce

STORM-INDUCED COMMUNITY DYNAMICS IN THE FEZOUATA BIOTA (LOWER ORDOVICIAN,MOROCCO)

Popis výsledku anglicky

In the Central Anti-Atlas (Morocco), the lower part of the Fezouata Shale has yielded locally abundant remains of soft-bodied to lightly sclerotized taxa, occurring in low diversity assemblages characterized bystrong spatial and taxonomic heterogeneities, and frequently, by the occurrence of small-sized individuals. Sizefrequency analyses of Celdobolus sp., Wosekella sp. (both linguliformean brachiopods) and Babinka prima (babinkid bivalve) collected in deposits of the Fezouata Shale and associated with distinct paleoenvironmental conditions show that short-lived communities of epifaunal and shallow infaunal taxa were regularly smothered and killed by distalstorm deposits. Small-sized individuals more likely represent juveniles, rather than ‘dwarfed’ adults (Lilliput Effect).Consequently, unstable environmental conditions (regular storms, and possibly low oxygenation of the water column)probably explain the unusual community dynamics of late Tremadocian assemblages of the Fezouata Biota (high density of individuals, low a-diversity, and high c-diversity), interpreted as short-lived, opportunistic populations. This process has wider implications for the understanding of occurrences of small individuals elsewhere in the fossil record.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

<a href="/cs/project/GA18-14575S" target="_blank" >GA18-14575S: Fosilní společenstva libeňského a letenského souvrství (svrchní ordovik) - klíč k pochopení Fezouata a Tafilalt biotas z Maroka</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Palaios

ISSN

0883-1351

e-ISSN

—

Svazek periodika

33

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

535-541

Kód UT WoS článku

000454764900002

EID výsledku v databázi Scopus

2-s2.0-85059312374