| Title | Different substrates within a lake harbour connected but specialised microbial communities |
| Abstract | Natural water bodies contain physically interconnected habitats suitable for microbes, such as different water layers and substrates for biofilms. Yet, little is known on the extent to which microbial communities are shared between such habitats and whether differences and similarities are consistent between sites. Here we explicitly tested hypotheses on similarities between aquatic bacterial communities found floating in water, in association with daphnids and with copepods, within bottom sediments, and on littoral stones of a lake. Through high-throughput 16S rDNA amplicon sequencing, distinguishable patterns were retrieved between habitats. In particular, community composition was more similar between the two zooplankton taxa, between the two water depths, and was rather different in sediments, where a large fraction of the total diversity was present. Most bacterial taxa were restricted to one or few habitats, whereas only few were found as generalists on different habitats. Our results indicate a limited role of source-sink dynamics between habitats for aquatic bacteria. Similarly to patterns of diversity in larger organisms, community composition was different between habitats, potentially because of specific mechanisms creating and maintaining habitat filtering. |
| Source | Hydrobiologia (The Hague. Print) |
| Keywords | BacteriaCommunity assemblyDispersalIlluminaLevins' niche breadth |
| Journal | Hydrobiologia (The Hague. Print) |
| Editor | Kluwer Academic Publishers, Boston, Paesi Bassi |
| Year | 2020 |
| Type | Articolo in rivista |
| DOI | 10.1007/s10750-019-04068-1 |
| Authors | Eckert, Ester M.; Amalfitano, Stefano; Di Cesare, Andrea; Manzari, Caterina; Corno, Gianluca; Fontaneto, Diego |
| Text | 410489 2020 10.1007/s10750 019 04068 1 ISI Web of Science WOS WOS 000494178100001 Scopus 2 s2.0 85074508406 Bacteria Community assembly Dispersal Illumina Levins niche breadth Different substrates within a lake harbour connected but specialised microbial communities Eckert, Ester M.; Amalfitano, Stefano; Di Cesare, Andrea; Manzari, Caterina; Corno, Gianluca; Fontaneto, Diego Natl Res Council Italy CNR IRSA; Natl Res Council Italy CNR IRSA; Natl Res Council Italy CNR IBBE Natural water bodies contain physically interconnected habitats suitable for microbes, such as different water layers and substrates for biofilms. Yet, little is known on the extent to which microbial communities are shared between such habitats and whether differences and similarities are consistent between sites. Here we explicitly tested hypotheses on similarities between aquatic bacterial communities found floating in water, in association with daphnids and with copepods, within bottom sediments, and on littoral stones of a lake. Through high throughput 16S rDNA amplicon sequencing, distinguishable patterns were retrieved between habitats. In particular, community composition was more similar between the two zooplankton taxa, between the two water depths, and was rather different in sediments, where a large fraction of the total diversity was present. Most bacterial taxa were restricted to one or few habitats, whereas only few were found as generalists on different habitats. Our results indicate a limited role of source sink dynamics between habitats for aquatic bacteria. Similarly to patterns of diversity in larger organisms, community composition was different between habitats, potentially because of specific mechanisms creating and maintaining habitat filtering. Published version https //link.springer.com/article/10.1007/s10750 019 04068 1 03/09/2019 Different substrates within a lake harbour connected but specialised microbial communities Versione pubblicata Eckert2020_Article_DifferentSubstratesWithinALake.pdf Articolo in rivista Kluwer Academic Publishers 0018 8158 Hydrobiologia The Hague. Print Hydrobiologia The Hague. Print Hydrobiologia The Hague. Print Hydrobiologia. The Hague. Print Hydrobiologia Dordrecht The Hague. Print Hydrobiologia Boston The Hague. Print Hydrobiologia London The Hague. Print stefano.amalfitano AMALFITANO STEFANO gianluca.corno CORNO GIANLUCA caterina.manzari MANZARI CATERINA diego.fontaneto FONTANETO DIEGO andrea.dicesare DI CESARE ANDREA estermaria.eckert ECKERT ESTER MARIA |
