Diatom habitats, species diversity and water-depth inference models across surface-sediment transects in Worth Lake, northwest Ontario, Canada

Laird, Kathleen R.; Kingsbury, Melanie V.; Cumming, Brian F.

doi:10.1007/s10933-010-9470-0

Cited by 47 publications

(45 citation statements)

References 41 publications

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“…In contrast, these resources remain relatively stable in the epilimnetic zone, possibly promoting high abundances of planktonic species (Passy, 2008;Cantonati & Lowe, 2014). The strong influence of water depth in regulating the spatial diatom community patterns has also been shown in other lakes studies (Yang & Duthie, 1995;Stone & Fritz, 2006;Laird et al, 2010;Wang et al, 2012).…”

Section: Relative Quantitative Importance Of Environmental Variablesmentioning

confidence: 69%

Spatial patterns of diatom diversity and community structure in ancient Lake Ohrid

et al. 2018

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The extraordinary diversity in long-lived lakes is largely driven by distinct eco-evolutionary processes. With their unique biota and numerous endemic taxa, these lakes are key settings for fundamental studies related to ecology, diversity, and evolution. Here, we test how the environment shapes diatom diversity and community patterns over space in ancient Lake Ohrid. By applying Bray-Curtis similarity analyses of diatom community data, including widespread and endemic taxa, we identified two major zones: littoral and sublittoral. The latter one is being characterized with higher endemic diversity. The a and b diatom diversity and community distribution in the northern and eastern part of the lake are influenced by the presence of vertical (bathymetrical) and horizontal barriers. The zonation of the diatom communities appears driven by two large-scale factors: (i) water depth, and (ii) water chemistry, primarily, the concentration of total phosphorus, nitrogen ammonia, and conductivity. Both drivers appear to equally influence diatom diversity and community patterns. We present initial data on diatom-environment relations, where the results support earlier ecological studies emphasizing the relevance of ongoing human-induced eutrophication in the northern lake area. This study provides background information on the role of the environment in structuring contemporary diatom diversity. However, future research needs to focus on the biotic component including species competition in order to reveal the mechanisms driving spatial community dynamics in Lake Ohrid.

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Section: Relative Quantitative Importance Of Environmental Variablesmentioning

confidence: 69%

Spatial patterns of diatom diversity and community structure in ancient Lake Ohrid

et al. 2018

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“…Although considerable spatiotemporal variation is expected in Cladocera on a lake-specific scale (Tremel et al 2000;Örnólfsdóttir and Einarsson 2004), paleolimnological approach in Cladocera research has relied on the fact that one surface sediment sample from the center of a lake basin are representative of local species assemblages. However, recent studies on intrabasin variability of biotic species assemblages (Laird et al 2010;Luoto 2010) have shown the changeability of species compositions across water depth gradients. The diverse intralake distribution of cladocerans in surface sediment samples, forced by changes in sampling site depth, has also been evidenced previously (Kattel et al 2007;Nevalainen 2011) and in overall, together with the Moaralmsee results (Figs.…”

Section: Diversity and Distributionmentioning

confidence: 99%

“…Despite the fact that only a small fraction of aquatic organisms preserve as fossil remains in lake sediments, research on surface sediment assemblages of such organisms has become an important and valid method in contemporary ecological studies (Bjerring et al 2009;Catalan et al 2009;Brancelj et al 2009). In addition to using paleolimnological approach in determining wide geographical distribution patterns (Bjerring et al 2009;Brancelj et al 2009;Catalan et al 2009), it has recently been utilized in identifying patterns at local-scale too, unraveling habitat-specificity of various organisms (Laird et al 2010;Luoto 2010;Nevalainen 2011). Local species assemblages and site-specific thresholds, however, are not governed solely by local processes, as biogeographical processes have a major contribution (Bilton et al 2001).…”

Section: Introductionmentioning

confidence: 99%

Distribution of benthic microcrustaceans along a water depth gradient in an Austrian Alpine lake – Sedimentary evidence for niche separation

Nevalainen

2012

Limnologica

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a b s t r a c tDistribution of benthic microcrustacean (Crustacea: Cladocera) was investigated with paleolimnological approach by using their fossil surface sediment assemblages within a thermally extreme lake in the Niedere Tauern, Austrian Alps. The results from 20 surface sediment samples suggested that the spatial distribution of chydorids is clearly heterogeneous along the water depth gradient (1.8-6.1 m); Alona quadrangularis dominated in shallow (warm, minerogenic) habitats, Chydorus sphaericus-type succeeded at intermediate depths, and Alona affinis dominated in deep (cold, organic) sites. Apparently, these benthic cladocerans exhibit clear habitat and resource segregation. The distributional patterns revealed local community thresholds at approximately 2.5 and 4.5 m water depths and these thresholds were likely to be forced by variances in habitat quality (minerogenic-organic), food resources (periphyton/detritus), thermal properties (warm-cold), and UV-exposure (high-low). The results emphasize the usability of the paleolimnological approach in distributional investigations and its applicability in providing information on species-environmental relationships for environmental change evaluations and paleoecological interpretations.

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“…Kattel et al (2007) examined the distribution of Cladocera species in surface sediment samples at different depths, and their results indicated that fossil remains of cladocerans are clearly deposited close to their original habitats, showing distinct variability among the samples at different depths. Furthermore, a study of diatom distribution in surface sediment assemblages within a single lake basin in northwestern Ontario in Canada indicated habitat-specific patterns (Laird et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Intra-lake heterogeneity of sedimentary cladoceran (Crustacea) assemblages forced by local hydrology

Nevalainen

2011

Hydrobiologia

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Intra-lake variation of fossil Cladocera (Crustacea) assemblages in 31 surface sediment samples in Lake Pieni-Kauro and River Saavanjoki, eastern Finland, was examined with an objective to identify habitat specificity of Cladocera in relation to local hydrology-related environmental factors. The surface sediment assemblages showed high levels of heterogeneity, mainly as to water depth and lenticlotic gradients in the lake-river complex. This was evident from the principal component analysis which indicated a major trend from shallow to deep samples and a secondary trend from lentic to lotic samples, and from redundancy analysis (RDA), which recognized water depth and river flow as the most important environmental variables in explaining cladoceran variability within the dataset. According to the RDA and generalized linear models, Daphnia spp., Bosmina (Eubosmina), and Alona quadrangularis showed association with deep water localities, whereas Bosmina longirostris and Alona affinis preferred littoral habitats. Acroperus harpae and Chydorus sphaericus s.l. appeared to favor lotic habitats. The results propose that littoral taxa are primarily deposited postmortem or after molting close to their shallow water habitats, while planktonic cladocerans accumulate principally in deepwater locations. Accordingly, it appears that in heterogeneous basins intra-lake surface sediment samples integrate locally living fauna that is driven by local hydrology-related factors, such as water depth, sediment properties, macrophytes, and river flow and coupling biotic interactions.

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Diatom habitats, species diversity and water-depth inference models across surface-sediment transects in Worth Lake, northwest Ontario, Canada

Cited by 47 publications

References 41 publications

Spatial patterns of diatom diversity and community structure in ancient Lake Ohrid

Spatial patterns of diatom diversity and community structure in ancient Lake Ohrid

Distribution of benthic microcrustaceans along a water depth gradient in an Austrian Alpine lake – Sedimentary evidence for niche separation

Intra-lake heterogeneity of sedimentary cladoceran (Crustacea) assemblages forced by local hydrology

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