Diatoms in very-shallow pools of the site of community importance Danta di Cadore Mires (south-eastern Alps), and the potential contribution of these habitats to diatom biodiversity conservation

Cantonati, Marco; Lange‐Bertalot, Horst; Decet, Fabio; Gabrieli, Jacopo

doi:10.1127/0029-5035/2011/0093-0475

Cited by 35 publications

(29 citation statements)

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“…Although disjunct occurrences and endemism of vascular plants in southern-European bogs are well known, less is known about smaller organisms such as diatoms. Diatom communities with >70% of taxa belonging to threat categories of the Red List were indeed discovered in pools of mountain mires of south-eastern Alps [394], even with species new to science [395], but not all mires of Central and Southern Europe are as rich and unique [360].…”

Section: Mires (Peatlands): Fens and Bogsmentioning

confidence: 99%

Characteristics, Main Impacts, and Stewardship of Natural and Artificial Freshwater Environments: Consequences for Biodiversity Conservation

Cantonati

Poikāne

Pringle

et al. 2020

Water

163

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In this overview (introductory article to a special issue including 14 papers), we consider all main types of natural and artificial inland freshwater habitas (fwh). For each type, we identify the main biodiversity patterns and ecological features, human impacts on the system and environmental issues, and discuss ways to use this information to improve stewardship. Examples of selected key biodiversity/ecological features (habitat type): narrow endemics, sensitive (groundwater and GDEs); crenobionts, LIHRes (springs); unidirectional flow, nutrient spiraling (streams); naturally turbid, floodplains, large-bodied species (large rivers); depth-variation in benthic communities (lakes); endemism and diversity (ancient lakes); threatened, sensitive species (oxbow lakes, SWE); diverse, reduced littoral (reservoirs); cold-adapted species (Boreal and Arctic fwh); endemism, depauperate (Antarctic fwh); flood pulse, intermittent wetlands, biggest river basins (tropical fwh); variable hydrologic regime—periods of drying, flash floods (arid-climate fwh). Selected impacts: eutrophication and other pollution, hydrologic modifications, overexploitation, habitat destruction, invasive species, salinization. Climate change is a threat multiplier, and it is important to quantify resistance, resilience, and recovery to assess the strategic role of the different types of freshwater ecosystems and their value for biodiversity conservation. Effective conservation solutions are dependent on an understanding of connectivity between different freshwater ecosystems (including related terrestrial, coastal and marine systems).

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Section: Mires (Peatlands): Fens and Bogsmentioning

confidence: 99%

Characteristics, Main Impacts, and Stewardship of Natural and Artificial Freshwater Environments: Consequences for Biodiversity Conservation

Cantonati

Poikāne

Pringle

et al. 2020

Water

163

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“…C. schauppiana always occurred in very low abundances (<0.4%) corresponding to just one or two specimens encountered while counting 400-500 valves. The assemblages of the two mires were rather similar and the most frequent diatoms (ordered by decreasing relative abundance) were: The diversity values of these diatom communities (Shannon-Wiener Index, 2-base logarithms) were low (= 1.2) in the case of DAN03, and average (= 2.3) in the case of DAN02 (Cantonati et al 2009a).…”

Section: Distribution and Ecologymentioning

confidence: 96%

“…The diatom associations of the two stations (DAN02 and DAN03) where C. shauppiana was found included acidophilous, oligotraphentic and xerotolerant taxa (Cantonati et al 2009a). Indeed, the two sites were characterized by acidic to circumneutral pH (4.9-6.1), very low to low conductivity (14-50 $3 cm-'), low silica (0.2-0.6 mg L-') and sulphate (0.5-2.0 mg L-I) content, along with very low nitrogen (TN 0.7-1.6 mg L-I) and soluble reactive phosphorus (<2 pg L-') availability (Cantonati et al 2009a).…”

Section: Distribution and Ecologymentioning

confidence: 99%

“…Indeed, the two sites were characterized by acidic to circumneutral pH (4.9-6.1), very low to low conductivity (14-50 $3 cm-'), low silica (0.2-0.6 mg L-') and sulphate (0.5-2.0 mg L-I) content, along with very low nitrogen (TN 0.7-1.6 mg L-I) and soluble reactive phosphorus (<2 pg L-') availability (Cantonati et al 2009a). Moreover, one of these shallow mire pools (DAN03) was visited also in winter and found to be completely frozen.…”

Section: Distribution and Ecologymentioning

confidence: 99%

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ON THE ULTRASTRUCTURE OFCHAMAEPINNULARIA SCHAUPPIANALANGE-BERTALOT & METZELTIN (NAVICULACEAE S. L.)

Cantonati¹,

Lange‐Bertalot²

2009

Diatom Research

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The species Charnaepinnularia schauppiana was described in 1996 on the basis of LM observations. An investigation of specimens using the SEM was, however, considered necessary to be completely sure about the allocation of the new species to Charnaepinnularia. These SEM observations were carried out during an investigation of materials sampled from shallow pools in the Danta di Cadore mires (south-eastern Alps, Italy). SEM micrographs allowed a detailed description of the ultrastructure (in particular, the peculiar grooves on the axial and central area, and the sub-marginal position of the silica bridges dividing the striae into two foramina), and definitively confirming the genus allocation. Moreover, useful information on habitat and substrata preference of this rather rare species was also provided.

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“…диатомовые водоросли представлены исключительно пеннатными формами. Отсутствие центрических диатомей, недавно отмеченное для мелких заболоченных водоемов юго-восточных Альп, объясняют малыми размерами исследованных водоемов (Cantonati et al, 2011). Вероятно, наиболее правдоподобной причиной отсутствия представителей класса Coscinodiscophyceae в восточной части ППЗ является увеличение олиготрофизации его водоемов в направлении с юго-запада на северо-восток.…”

Section: материалы и методыunclassified

Freshwater algae of the Polessian Nature Reserve (Ukraine)

Kapustin¹

2013

Algologia

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Приведены результаты исследований альгофлоры Полесского природного заповедника, которая насчитывает 707 видов водорослей (773 внутривидовых таксона) из 12 отделов. Отмечена высокая флористическая и созологическая ценность данной флоры. Обсуждаются особенности распространения водорослей на территории заповедника и их распределение по типам водоемов. Предложен один новый таксономический статус (Lagynion oedotrachelum (Ellis-Adam) D. Kapustin stat. nov.). К л ю ч е в ы е с л о в а: водоросли, Полесский заповедник, стоматоцисты, таксономическое разнообразие, альгофлора.

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Diatoms in very-shallow pools of the site of community importance Danta di Cadore Mires (south-eastern Alps), and the potential contribution of these habitats to diatom biodiversity conservation

Cited by 35 publications

References 0 publications

Characteristics, Main Impacts, and Stewardship of Natural and Artificial Freshwater Environments: Consequences for Biodiversity Conservation

Characteristics, Main Impacts, and Stewardship of Natural and Artificial Freshwater Environments: Consequences for Biodiversity Conservation

ON THE ULTRASTRUCTURE OFCHAMAEPINNULARIA SCHAUPPIANALANGE-BERTALOT & METZELTIN (NAVICULACEAE S. L.)

Freshwater algae of the Polessian Nature Reserve (Ukraine)

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