Living on the pH Edge: Diatom Assemblages of Low-pH Lakes in Western Pomerania (NW Poland)

Witkowski, Andrzej; Radziejewska, Teresa; Wawrzyniak-Wydrowska, Brygida; Lange‐Bertalot, Horst; Bąk, Małgorzata; Gelbrecht, Jörg

doi:10.1007/978-94-007-1327-7_16

Cited by 11 publications

(16 citation statements)

References 23 publications

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“…Unsurprisingly, this observation is consistent with the view that high acidity is too harsh for most microalgae (Witkowski et al. ). Nonetheless, we detected hidden diversity of acidophilic microalgae with some ESUs exhibiting low sequence identity to the rbc L sequences in GenBank; we speculate that these ESUs may represent species yet to be recognized.…”

Section: Discussionsupporting

confidence: 90%

The effects of contemporary selection and dispersal limitation on the community assembly of acidophilic microalgae

Hsieh

Zhan

Liao

et al. 2018

Journal of Phycology

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Extremophilic microalgae are primary producers in acidic habitats, such as volcanic sites and acid mine drainages, and play a central role in biogeochemical cycles. Yet, basic knowledge about their species composition and community assembly is lacking. Here, we begin to fill this knowledge gap by performing the first large-scale survey of microalgal diversity in acidic geothermal sites across the West Pacific Island Chain. We collected 72 environmental samples in 12 geothermal sites, measured temperature and pH, and performed rbcL amplicon-based 454 pyrosequencing. Using these data, we estimated the diversity of microalgal species, and then examined the relative contribution of contemporary selection (i.e., local environmental variables) and dispersal limitation on the assembly of these communities. A species delimitation analysis uncovered seven major microalgae (four red, two green, and one diatom) and higher species diversity than previously appreciated. A distance-based redundancy analysis with variation partitioning revealed that dispersal limitation has a greater influence on the community assembly of microalgae than contemporary selection. Consistent with this finding, community similarity among the sampled sites decayed more quickly over geographical distance than differences in environmental factors. Our work paves the way for future studies to understand the ecology and biogeography of microalgae in extreme habitats.

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Section: Discussionsupporting

confidence: 90%

The effects of contemporary selection and dispersal limitation on the community assembly of acidophilic microalgae

Hsieh

Zhan

Liao

et al. 2018

Journal of Phycology

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“…; Witkowski et al. ; Poulíčková et al. ), and E. fennica is also commonly associated with Sphagnum ponds (Hamilton and Siver ; Lange‐Bertalot et al.…”

Section: Discussionmentioning

confidence: 99%

“…(2011) described E. mucophila and E. necompacta sensu lato as both occurring in abundance in places such as Sphagnum peat bogs or acidic dystrophic lakes with low conductivity and nutrient content. Kobayasiella parasubtilissima is typically found in similar habitats (e.g., Kulikovskiy et al 2010;Witkowski et al 2011;Poul ı ckov a et al 2013), and E. fennica is also commonly associated with Sphagnum ponds (Hamilton and Siver 2010;Lange-Bertalot et al 2011). All of these taxa have previously been reported from peat surface samples and cores in the southern HBL by Hargan et al (2015a,b).…”

Section: Diatom Community Compositionmentioning

confidence: 99%

Distribution and diversity of diatom assemblages in surficial sediments of shallow lakes in Wapusk National Park (Manitoba, Canada) region of the Hudson Bay Lowlands

Jacques

Bouchard

MacDonald

et al. 2016

Ecology and Evolution

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The hydrology of shallow lakes (and ponds) located in the western Hudson Bay Lowlands (HBL) is sensitive to climate warming and associated permafrost thaw. However, their biological characteristics are poorly known, which hampers effective aquatic ecosystem monitoring. Located in northern Manitoba along the southwestern coast of Hudson Bay, Wapusk National Park (WNP) encompasses numerous shallow lakes representative of the subarctic zone. We analyzed the distribution and diversity of diatom (microscopic algae; class Bacillariophyceae) assemblages in surficial sediments of 33 lakes located in three different ecozones spanning a vegetation gradient, from NE to SW: the Coastal Fen (CF), the Interior Peat Plateau (IPP), and the Boreal Spruce Forest (BSF). We found significant differences (P < 0.05) in diatom community composition between CF and IPP lakes, and CF and BSF lakes, but not between IPP and BSF lakes. These results are consistent with water chemistry measurements, which indicated distinct limnological conditions for CF lakes. Diatom communities in CF lakes were generally dominated by alkaliphilous taxa typical of waters with medium to high conductivity, such as Nitzschia denticula. In contrast, several IPP and BSF lakes were dominated by acidophilous and circumneutral diatom taxa with preference for low conductivity (e.g., Tabellaria flocculosa, Eunotia mucophila, E. necompacta var. vixcompacta). This exploratory survey provides a first detailed inventory of the diatom assemblages in the WNP region needed for monitoring programs to detect changes in shallow lake ecosystems and ecozonal shifts in response to climate variations.

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“…s.str. In Poland the latter has been reported from both mountain (e.g., Gutwiński 1898Gutwiński , 1914Filarszky 1899Filarszky , 1900 and lowland regions (e.g., Wołoszyńska 1922;Pliński 1973;Zakryś 1980;Szymańska 1983;Ligowski 1986;Witkowski et al 2011;Szczepocka & Rakowska 2015;Siwek & Pociask-Karteczka 2017). However, due to the lack of original materials or photographs it is difficult to state which morphological forms were observed.…”

Section: Gomphonema Vibriomentioning

confidence: 94%

Gomphonema Vibrio Var. Subcapitatum (Bacillariophyceae), New for Poland

Eliasz-Kowalska¹

2017

Polish Botanical Journal

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Abstract. Gomphonema vibrio var. subcapitatum (A. Mayer) J. H. Lee, hitherto unknown in Poland, is reported here from six lakes in the northeastern part of the country. This diatom prefers alkaline waters of medium conductivity and low nitrate and chlorine concentrations. The taxon is documented by SEM images and LM micrographs, and its morphological variability and distribution are briefly discussed.

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Living on the pH Edge: Diatom Assemblages of Low-pH Lakes in Western Pomerania (NW Poland)

Cited by 11 publications

References 23 publications

The effects of contemporary selection and dispersal limitation on the community assembly of acidophilic microalgae

The effects of contemporary selection and dispersal limitation on the community assembly of acidophilic microalgae

Distribution and diversity of diatom assemblages in surficial sediments of shallow lakes in Wapusk National Park (Manitoba, Canada) region of the Hudson Bay Lowlands

Gomphonema Vibrio Var. Subcapitatum (Bacillariophyceae), New for Poland

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