Phytoplankton-based shallow lake types in the Carpathian basin: steps towards a bottom-up typology

Borics, Gábor; Lukács, Balázs András; Grigorszky, István; László-Nagy, Zsolt; G-Tóth, László; Bolgovics, Ágnes; Szabó, Sándor; Görgényi, Judit; Várbíró, Gábor

doi:10.1127/1863-9135/2014/0518

Cited by 15 publications

(21 citation statements)

References 43 publications

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“…In a previous study, we demonstrated that F I G U R E 1 PCA diagram for the environmental variables based on all lake data. Explained cumulative variation in the first two axes: 74.07% Borics, Lukács et al, 2014;Skácelová & Lepš, 2014;Török et al, 2016), but systematic relationship between nutrients and diversity could not be established. However, we showed that surface area is a powerful variable explaining the variation in phytoplankton species richness both at sample and water body level.…”

Section: Discussionmentioning

confidence: 94%

“…In a previous study, we demonstrated that nutrients had a strong inverse relationship with water body size because the smaller the water body, the larger the impact of perimeter‐related processes, such as nutrient loading from the soil to water, or the allochthonous input from the surrounding terrestrial habitats. It has recently been demonstrated that diversity has a nonlinear (humpback) relationship with phytoplankton biomass (Borics, Görgényi et al., ; Borics, Lukács et al., ; Skácelová & Lepš, ; Török et al., ), but systematic relationship between nutrients and diversity could not be established. However, we showed that surface area is a powerful variable explaining the variation in phytoplankton species richness both at sample and water body level.…”

Section: Discussionmentioning

confidence: 99%

“…These lakes provide ideal habitats for euglenoids that prefer small-scale spatial heterogeneity in the resources (Zakrys et al, 2004). These species frequently dominate in this kind of waters (Borics, Görgényi et al, 2014;Borics, Lukács et al, 2014) and establish diverse assemblages, therefore can be considered as typical pond-dwellers.…”

Section: Discussionmentioning

confidence: 99%

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Functional redundancy modifies species–area relationship for freshwater phytoplankton

Várbíró

Görgényi

Tóthmérész³

et al. 2017

Ecology and Evolution

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Although species–area relationship (SAR) is among the most extensively studied patterns in ecology, studies on aquatic and/or microbial systems are seriously underrepresented in the literature. We tested the algal SAR in lakes, pools and ponds of various sizes (10−2–108 m2) and similar hydromorphological and trophic characteristics using species‐specific data and functional groups. Besides the expectation that species richness increases monotonously with area, we found a right‐skewed hump‐shaped relationship between the area and phytoplankton species richness. Functional richness however did not show such distortion. Differences between the area dependence of species and functional richness indicate that functional redundancy is responsible for the unusual hump‐backed SAR. We demonstrated that the Small Island Effect, which is a characteristic for macroscopic SARs can also be observed for the phytoplankton. Our results imply a so‐called large lake effect, which means that in case of large lakes, wind‐induced mixing acts strongly against the habitat diversity and development of phytoplankton patchiness and finally results in lower phytoplankton species richness in the pelagial. High functional redundancy of the groups that prefer small‐scale heterogeneity of the habitats is responsible for the unusual humpback relationship. The results lead us to conclude that although the mechanisms that regulate the richness of both microbial communities and communities of macroscopic organisms are similar, their importance can be different in micro‐ and macroscales.

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Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

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Functional redundancy modifies species–area relationship for freshwater phytoplankton

Várbíró

Görgényi

Tóthmérész³

et al. 2017

Ecology and Evolution

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“…Five habitat types were set up for Hungarian standing waters to obtain a useful landscape-level classification scheme based on the criteria outlined by Heino and Mykrä (2006), and using the top-down (system B) typology of the Water Framework Directive (Borics et al, 2014): reservoirs (RES); alkali lakes (ALK); lowland large shallow lakes (BIG), lowland small to medium sized shallow lakes (MED) and very shallow lakes (MARSH). Although the types have some overlapping physical characteristics, they can be easily distinguished based on some basic criteria (e.g.…”

Section: Study Areamentioning

confidence: 99%

Macrophyte diversity of lakes in the Pannon Ecoregion (Hungary)

Lukács

Tóthmérész²,

Borics

et al. 2015

Limnologica

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a b s t r a c tWe examined the distribution of submerged and emergent macrophyte species and the entire macrophyte community within and between five lake types (highland reservoirs, alkali lakes, large shallow lakes, small to medium sized shallow lakes, marshes) in the Pannon Ecoregion, Hungary. The lowest submerged, emergent and total species richness was found in alkali lakes. The highest submerged macrophyte richness was in small to medium sized lakes, while the highest emergent macrophyte species richness was in reservoirs, small to medium sized lakes, and marshes. The values of within-lake type beta diversity were generally lower than the values of alpha diversity, especially for submerged macrophytes, indicating between site homogeneity in species composition within the lake types. Emergent macrophyte communities contributed the most to within and between lake type diversity and total (gamma) diversity. Canonical correspondence analyses showed that the main environmental variables which influenced the distribution of submerged macrophytes were conductivity, Secchi transparency and water nitrogen contents. For emergent macrophytes conductivity, lake width, altitude and water depth proved to be the most influential variables. Our results contribute to the knowledge of large-scale distribution of macrophytes in the Pannon Ecoregion and to the identification of conservation value of lakes using macrophytes. The results support the importance of small lakes and artificial lakes in the conservation of macrophyte diversity compared to large and natural lakes in the Pannon Ecoregion.

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“…The hydrology of Hungary is primarily determined by these large potamal rivers. The most characteristic water body types are the small lowland streams, oxbows, swamps, and soda pans formed by fluvial erosion and deflation (Borics et al 2014). Besides these types of waters, large, shallow lakes (e.g., Lake Balaton, Lake Velence and Fertő) provide unique habitats for aquatic and semi-aquatic Heteroptera in Hungary.…”

Section: Methodsmentioning

confidence: 99%

Revised and annotated checklist of aquatic and semi-aquatic Heteroptera of Hungary with comments on biodiversity patterns

Boda

Bozóki

Vásárhelyi

et al. 2015

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A basic knowledge of regional faunas is necessary to follow the changes in macroinvertebrate communities caused by environmental influences and climatic trends in the future. We collected all the available data on water bugs in Hungary using an inventory method, a UTM grid based database was built, and Jackknife richness estimates and species accumulation curves were calculated. Fauna compositions were compared among Central-European states. As a result, an updated and annotated checklist for Hungary is provided, containing 58 species in 21 genera and 12 families. A total 66.8% of the total UTM 10 × 10 km squares in Hungary possess faunistic data for water bugs. The species number in grid cells numbered from 0 to 42, and their diversity patterns showed heterogeneity. The estimated species number of 58 is equal to the actual number of species known from the country. The asymptotic shape of the accumulative species curve predicts that additional sampling efforts will not increase the number of species currently known from Hungary. These results suggest that the number of species in the country was estimated correctly and that the species accumulation curve levels off at an asymptotic value. Thus a considerable increase in species richness is not expected in the future. Even with the species composition changing the chance of species turn-over does exist. Overall, 36.7% of the European water bug species were found in Hungary. The differences in faunal composition between Hungary and its surrounding countries were caused by the rare or unique species, whereas 33 species are common in the faunas of the eight countries. Species richness does show a correlation with latitude, and similar species compositions were observed in the countries along the same latitude. The species list and the UTM-based database are now up-to-date for Hungary, and it will provide a basis for future studies of distributional and biodiversity patterns, biogeography, relative abundance and frequency of occurrences important in community ecology, or the determination of conservation status.

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Phytoplankton-based shallow lake types in the Carpathian basin: steps towards a bottom-up typology

Cited by 15 publications

References 43 publications

Functional redundancy modifies species–area relationship for freshwater phytoplankton

Functional redundancy modifies species–area relationship for freshwater phytoplankton

Macrophyte diversity of lakes in the Pannon Ecoregion (Hungary)

Revised and annotated checklist of aquatic and semi-aquatic Heteroptera of Hungary with comments on biodiversity patterns

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