Predicting aquatic macrophyte occurrence in soft-water oligotrophic lakes (Pyrenees mountain range)

Pulido, Cristina; Riera, Joan Lluís; Ballesteros, Enric; Chappuis, Eglantine; Gacia, Esperança

doi:10.4081/jlimnol.2014.965

Cited by 11 publications

(11 citation statements)

References 43 publications

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“…Due to the fact that the majority of natural ponds occur at high altitudes with low or no human impact and all of them are oligotrophic, while artificial ponds are on the opposite end of the gradient, it is likely that mainly natural environmental factors related to altitude are responsible for different species richness of both groups. Our results confirmed that altitude and correlated proximate environmental variables are among the most significant predictors of macrophyte richness [8,9,13].…”

Section: Species Richness and Composition And Their Relation To Envirsupporting

confidence: 76%

“…3). Several studies from the mountain regions across Europe showed similar results: high mountain ponds and lakes offer conditions that are too harsh for the development of macrophyte vegetation, and the presence and diversity of macrophytes in these habitats is rare and low, respectively [11,13]. Artificial ponds with more appropriate climatic conditions compared to those at high altitudes, intensity of human impact, and subsequently higher nutrient supply can provide convenient space for macrophyte vegetation [7].…”

Section: Species Richness and Composition And Their Relation To Envirmentioning

confidence: 49%

“…Even though several regional studies from particular mountain lakes have been published recently [10][11][12][13], there is still much that remains open for study.…”

Section: Introductionmentioning

confidence: 99%

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Vegetation-Environmental Variable Relationships in Ponds of Various Origins along an Altitudinal Gradient

Kochjarová¹,

Novikmec²,

Oťaheľová³

et al. 2017

Pol. J. Environ. Stud.

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Aquatic vegetation of the mountains and sub-alpine ponds in the Tatra Mountains and adjacent area (Slovakia) has been studied with the aim to provide information about the composition and species richness of macrophytes in relation to environmental factors. Macrophytes were studied in two pond groups: natural ponds of glacial origin and artificial ponds. Simultaneously, eight environmental variables were measured or estimated at each pond. The studied pond groups differed significantly (Mann-Whitney U-test, P<0.01) in almost all recorded environmental variables except for water temperature and pond area. Almost all environmental characteristics showed higher variability in the artificial ponds. In total, 70 macrophyte taxa were found at the study sites consisting of ca 90% of vascular plants and ca 10% of bryophytes. Artificial ponds were characterised by a multi-element vascular plant species group typical for marshy and aquatic habitats of lower altitudes, while Carex rostrata was the only species typical for natural ponds. Species richness differed significantly between the two pond groups, with artificial ponds hosting considerably more species. Species richness of all studied ponds was negatively correlated with altitude and precipitation;

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Section: Species Richness and Composition And Their Relation To Envirsupporting

confidence: 76%

Section: Species Richness and Composition And Their Relation To Envirmentioning

confidence: 49%

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Vegetation-Environmental Variable Relationships in Ponds of Various Origins along an Altitudinal Gradient

Kochjarová¹,

Novikmec²,

Oťaheľová³

et al. 2017

Pol. J. Environ. Stud.

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“…However, our study lends further support to this evidence and highlights the need for further investigations. Indeed, the majority of both earlier and more recent works on this topic focused predominantly, or even exclusively, on water conditions when analyzing macrophyte patterns, neglecting the potential role of sediment (Kolada, 2010;Alahuhta, 2015;Lukács et al, 2015;Pulido et al, 2015). Furthermore, previous investigations that did analyze the depth distribution of macrophytes often included depth among the environmental determinants tested, thereby limiting the analytical potential of the studies and references therein), or used data mainly from shallow ecosystems (Søndergaard et al, 2013).…”

Section: Environmental Determinantsmentioning

confidence: 99%

Aquatic vegetation in deep lakes: Macrophyte co-occurrence patterns and environmental determinants

Azzella¹,

Bresciani

Nizzoli

et al. 2017

J Limnol

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Our aims were to test the hypothesis that in deep lakes the co-occurrence patterns of macrophytes are not random, and to compare the relative contribution of the main environmental determinants (light, water and sediment parameters, phytoplankton) in structuring aquatic vegetation. We collected data from five deep Chara-dominated lakes in Central Italy along gradients of depth (33 to 165 m), dimension (1.7 to 114.5 km 2 ) and water trophic conditions (12.4 to 41.3 μg L -1 of total phosphorous). Twenty-five sampling plots per lake were randomly selected at five predetermined depths (1.5, 3.0, 6.0, 12.0 and 20.0 m; n=5) within homogenous littoral sectors. Data were explored by a null model analysis using the checkerboard score (C-score) index, and Canonical Correspondence Analysis. Our data verify the not random co-occurrence patterns of macrophyte' communities in deep lakes. However, present data suggested that C-scores are strictly dependent on lake' trophic status: low nutrient loads, in both water and sediments, seemed to be reflected in a not random co-occurrence zonation of macrophytes. Summarizing, it is fundamental evaluate the local effects of lake trophy on the macrophyte community dynamics both in time and space before inquiring about mutual links. If it fails to assess macrophyte co-occurrence patterns, it may be not possible to identify the determinants of the spatial arrangement of macrophytes and, in turn, the conservation status or the ongoing dynamics of lakes.

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“…Their plant community diversity varies from low to moderately high. Overall, these lakes support a range of freshwater plant communities that are rare in Europe and a number of very rare plant species, particularly isoetids (Rørslett, 1991;Pulido et al, 2012Pulido et al, , 2015. In this group of lakes, an important factor differentiating plant communities is the water acidity/alkalinity (Vestergaard and Sand-Jensen, 2000;Chmara et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

The relationships between structural and functional diversity within and among macrophyte communities in lakes

2017

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We studied the relationships between structural and functional diversity within and among macrophyte communities of softwater lakes. Diversity was assessed based on Simpson's diversity index (SD), species richness (S), Rao's functional diversity (FD Q ) and shared plant traits along a gradient of pH. A total of 10,800 cover-plant samples (area=0.1 m 2 ) were analysed, collected from 241 sections of the bottom (with a depth resolution of 1.0 m) of 38 lakes in Poland. We identified 59 species of macrophytes and recognized four communities. Along a gradient of increasing pH we found i) an increase of species richness; ii) a uniformity of abundance in communities; and iii) an increase in the quantitative contribution of life history traits such as perennials, submerged anchoring, leaf placement along an orthotropic shoot and generative reproduction. On the other hand, there was a decrease in unanchored and evergreen perennials. In our study, we found that the variety of these traits within communities is greater than that between them. Within lakes, structural diversity was low, whereas it was high between lakes. Functional diversity exhibited an opposite pattern: it was high at lake scale, and low between lakes. A combination of partitioning diversity and utilizing environmental variables significantly improves the prediction of community structure and the conservation of lakes.

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Predicting aquatic macrophyte occurrence in soft-water oligotrophic lakes (Pyrenees mountain range)

Abstract: Distribution of aquatic macrophytes in lakes is related to geographical, morphological, catchment and water chemistry variables as well as human impacts

Cited by 11 publications

References 43 publications

Vegetation-Environmental Variable Relationships in Ponds of Various Origins along an Altitudinal Gradient

Vegetation-Environmental Variable Relationships in Ponds of Various Origins along an Altitudinal Gradient

Aquatic vegetation in deep lakes: Macrophyte co-occurrence patterns and environmental determinants

The relationships between structural and functional diversity within and among macrophyte communities in lakes

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