Does lake age affect zooplankton diversity in Mediterranean lakes and reservoirs? A case study from southern Italy

Alfonso, Giuseppe; Belmonte, Genuario; Marrone, Federico; Naselli-Flores, Luigi

doi:10.1007/978-90-481-9908-2_12

Cited by 7 publications

(11 citation statements)

References 41 publications

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“…A possible factor influencing the zooplankton communities in lakes or reservoirs can be the age of these water basins (Dodson et al, ; Alfonso et al, ). However, it seems that the age of reservoir in the Sitna is not important, because an increase in the abundance of zooplankton communities had already been observed in the first year after the dam's construction.…”

Section: Discussionmentioning

confidence: 99%

Small dams profoundly alter the spatial and temporal composition of zooplankton communities in running waters

Czerniawski

Domagała

2014

Internat. Rev. Hydrobiol.

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We analyzed the influence of a small dam on the temporal and spatial properties of zooplankton communities by comparing the zooplankton composition established prior to the dam's construction to that during 5 years after its construction. The dammed water of a small dam, even just by 1 m, induced spatial changes in the zooplankton communities similar to those induced by a large dam. Changes in the number of taxa and zooplankton densities were observed a few months after the construction of the dam. In particular, in the number of planktonic rotifers such as Keratella cochlearis, Filinia longiseta, Polyarthra longiremis, Trichocerca similis and the larval stages of copepods considerably increased, along with the density of the littoral taxa of rotifers and crustaceans. Cladocerans appeared in the impoundment after the construction of the dam and their abundance increased in the second year after the dam was built. The abundance of all systematic groups of zooplankton increased in subsequent years after the construction of the dam. The small dam had a great effect on the spatial and temporal composition of the zooplankton communities in the stream studied, related to an abrupt change in the physical conditions from those typical of flowing water to those typical of limnetic basins.

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Section: Discussionmentioning

confidence: 99%

Small dams profoundly alter the spatial and temporal composition of zooplankton communities in running waters

Czerniawski

Domagała

2014

Internat. Rev. Hydrobiol.

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“…A halophilous species currently reported only for Sardinia (Stoch, 2006a), Sicily (Marrone et al, 2006a) and a single coastal wetland in Apulia (Alfonso and Belmonte, 2011). Other references: Marrone, 2006;Marrone et al, 2006bMarrone et al, , 2009Marrone et al, , 2013Marrone et al, , 2017Alfonso et al, 2010;Anufriieva and Shadrin, 2015;Belmonte, 2018. Copidodiaptomus numidicus (Gurney, 1909). SIC, SAR, COR.…”

Section: Annotated Checklistmentioning

confidence: 99%

An annotated checklist and bibliography of the Diaptomidae (Copepoda, Calanoida) of Italy, Corsica, and the Maltese islands

Alfonso¹,

Stoch

Marrone

2021

J Limnol

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Calanoids of the family Diaptomidae are the most widespread copepods in the lentic inland waters of the Palearctic region. In Italy, studies on the family date back to the end of 19th century. Since then, several papers contributed to increasing the knowledge on their presence, distribution, and ecological preferences. Nevertheless, new records for the area and the discovery of putative new species stress that the current knowledge on these inland water crustaceans is still far from being exhaustive. This paper presents an updated and annotated checklist and bibliography of the Diaptomidae of the Italian peninsula and surrounding islands, including Corsica and the Maltese islands, compiled through a critical review of the existing literature and carrying out further field research. The doubtful records reported in the literature are discussed and clarified. The updated checklist includes 30 diaptomid species and subspecies; among them, an alien species and three putative new species pending formal description are reported. About 20% of the observed species are endemic or subendemic to the study area. The faunal provinces ascribed to the Mediterranean limnofaunistic region host the highest species richness and contribute to the checklist with rare species and unique occurrences. The high species richness observed in the Mediterranean area supports the hypothesis of a long-lasting persistence of an ancient and peculiar copepod fauna.

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“…Number of species in island-like biotopes increases only during the initial phase but then it stabilizes at an equilibrium point, at which the number of immigrants equals the number of local extinctions (reviewed in Belmonte, 2012). There is an evidence for planktonic copepods from artificial lakes, that only several decades are needed to reach the equilibrium number of species (Alfonso et al, 2010). For benthic harpacticoids, no dispersal limitations were apparent in streams formed within 140 years after a glacial retreat in Alaska on an area of ca 11,000 km 2 (despite some differences in species number and composition between streams of >140 and <140 years old; Robertson and Milner, 2006).…”

Section: Discussionmentioning

confidence: 98%

“…the time available for colonisation) may influence the number of harpacticoid species and species composition. It has been found that the effect of age for number of species richness in aquatic biotopes may be masked by anthropogenic changes (Alfonso et al, 2010). The spring fens are, however, natural and relatively well-preserved sites of great conservation value Hájková et al, 2012), which enhance the possibility of revealing an age effect.…”

Section: Introductionmentioning

confidence: 99%

The harpacticoid assemblages (Copepoda: Harpacticoida) in the Western Carpathian spring fens in relation to environmental variables and habitat age

2015

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a b s t r a c tHarpacticoids are an important component of meiofaunal assemblages in springs. No information so far has been available on harpacticoid assemblages of the Western Carpathian spring fens, unique biotopes of high conservation value which cover a very long gradient of mineral content of groundwater, due to the variable geological background setting. Spring fens are isolated habitats of different age which can be assessed by radiocarbon dating of their basal sediment layers. This enables to test a possible effect of habitat age on species composition and species richness. In this study, we examined harpacticoid assemblages in 50 permanent tree-less spring fens (helocrenes) in the Western Carpathians (Slovakia and Czech Republic) in terms of species composition, total abundance, species density, and species richness. We tested mainly the effect of 12 explanatory variables describing water chemistry and temperature, climatic conditions, amount of nutrients, organic carbon, sediment structure, habitat age and size, using Canonical Correspondence Analyses (CCA) with stepwise forward selection. For the computation of species richness rarefaction was used. In total, 20 harpacticoid species were recorded with the total median density of 950 individuals in m −2 . Three significant explanatory variables, Ellenberg Indicator Values of plant community for nutrients, in situ measured pH, and average January temperature, explained together 19.0% (adj. 13.7%) of the total variance in the species composition data. The relationships of harpacticoids to these three explanatory variables were species specific and no uniform response of the total assemblage to the environmental variables was found (in terms of total abundance and number of species). The only exception was the influence of overall unfavourable conditions in the mineral-poor acidic Sphagnum-fens. Pilocamptus pilosus was significantly associated with a higher amount of nutrients and warmer climate. Nutrient enrichment was clearly indicated by a decrease or absence of crenophile Bryocamptus cuspidatus, and accompanied by an increase in ubiquitous Attheyella crassa. Moraria brevipes was confined to low pH, B. cuspidatus showed a high tolerance for low pH, whereas Bryocamptus echinatus preferred alkaline conditions. Despite a significant correlation between habitat age and species density we found no clear evidence that any colonisation driven process could influence the number of harpacticoid species within the tested time scale. We hypothesize that rather other habitat characteristics connected with age, i.e. habitat heterogeneity and stability, may be determinant for species richness. The occurrence of some species (e.g. P. pilosus, B. cuspidatus) was clearly geographically limited, but due to the spatial structuring of significant environmental variables no conclusion on dispersal limitations could be made.

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Does lake age affect zooplankton diversity in Mediterranean lakes and reservoirs? A case study from southern Italy

Cited by 7 publications

References 41 publications

Small dams profoundly alter the spatial and temporal composition of zooplankton communities in running waters

Small dams profoundly alter the spatial and temporal composition of zooplankton communities in running waters

An annotated checklist and bibliography of the Diaptomidae (Copepoda, Calanoida) of Italy, Corsica, and the Maltese islands

The harpacticoid assemblages (Copepoda: Harpacticoida) in the Western Carpathian spring fens in relation to environmental variables and habitat age

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