Small-scale variation of corticolous microalgal covers: Effects of microhabitat, season, and space

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10369112" target="_blank" >RIV/00216208:11310/17:10369112 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1111/pre.12187" target="_blank" >http://dx.doi.org/10.1111/pre.12187</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/pre.12187" target="_blank" >10.1111/pre.12187</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Small-scale variation of corticolous microalgal covers: Effects of microhabitat, season, and space

Popis výsledku v původním jazyce

The present study focuses on temporal and microscale spatial variation of the community structure and richness of subaerial microalgae growing on the bark of European beech (Fagus sylvatica) trees in temperate deciduous forests. Subaerial phototrophic biofilms present common and conspicuous microalgal communities growing on a variety of natural and man-made substrata. However, in comparison with other major microalgal communities such as phytoplankton and microphytobenthos, basic patterns of their spatio-temporal variation remain largely unknown. The bark samples were collected six times each spring and autumn in a period of 3years (2010-2013) and were cultured on agar plates, and then individual clonal strains were identified by light microscopy. A total of 55 morphotypes (considered as operational taxonomic units for subsequent analyses) were recognized, which mainly belong to the classes Trebouxiophyceae and Chlorophyceae. Interestingly, temporal variation explained the largest proportion of variation in the community structure. This variation was primarily related to seasonal fluctuations, and although the communities recorded in spring and autumn showed many overlapping taxa, a clear distinction in species composition and abundance was observed. However, the microhabitat characteristics such as bark roughness also significantly structured the microalgal community. Conversely, spatial factors such as the height of the samples above ground or distance of the samples on a trunk seemed to be of lesser importance on this scale. Thus, we concluded that the previously unrecognized seasonal changes, resulting from variation in temperature, humidity, and irradiance, as well as the non-seasonal temporal changes, possibly resulting from local colonization or extinction of individual taxa, should be considered as one of the important factors in structuring aerial microalgal communities.

Název v anglickém jazyce

Small-scale variation of corticolous microalgal covers: Effects of microhabitat, season, and space

Popis výsledku anglicky

The present study focuses on temporal and microscale spatial variation of the community structure and richness of subaerial microalgae growing on the bark of European beech (Fagus sylvatica) trees in temperate deciduous forests. Subaerial phototrophic biofilms present common and conspicuous microalgal communities growing on a variety of natural and man-made substrata. However, in comparison with other major microalgal communities such as phytoplankton and microphytobenthos, basic patterns of their spatio-temporal variation remain largely unknown. The bark samples were collected six times each spring and autumn in a period of 3years (2010-2013) and were cultured on agar plates, and then individual clonal strains were identified by light microscopy. A total of 55 morphotypes (considered as operational taxonomic units for subsequent analyses) were recognized, which mainly belong to the classes Trebouxiophyceae and Chlorophyceae. Interestingly, temporal variation explained the largest proportion of variation in the community structure. This variation was primarily related to seasonal fluctuations, and although the communities recorded in spring and autumn showed many overlapping taxa, a clear distinction in species composition and abundance was observed. However, the microhabitat characteristics such as bark roughness also significantly structured the microalgal community. Conversely, spatial factors such as the height of the samples above ground or distance of the samples on a trunk seemed to be of lesser importance on this scale. Thus, we concluded that the previously unrecognized seasonal changes, resulting from variation in temperature, humidity, and irradiance, as well as the non-seasonal temporal changes, possibly resulting from local colonization or extinction of individual taxa, should be considered as one of the important factors in structuring aerial microalgal communities.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/GAP506%2F12%2F0955" target="_blank" >GAP506/12/0955: Integrovaný výzkum taxonomie a diverzity subaerických epifytických zelených řas v mediteránních ekosystémech</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Phycological Research

ISSN

1322-0829

e-ISSN

—

Svazek periodika

65

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

JP - Japonsko

Počet stran výsledku

13

Strana od-do

299-311

Kód UT WoS článku

000412099200005

EID výsledku v databázi Scopus

2-s2.0-85026521358