A quantitative hydrogeomorphic approach to the classification of temporary wetlands in the Doñana National Park (SW Spain)

Espinar, José L.; Serrano, Laura

doi:10.1007/s10452-007-9162-7

Cited by 31 publications

(24 citation statements)

References 19 publications

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“…Compared with a previous study in the same study area, dissolved inorganic phosphate concentrations are generally higher than those reported in these ponds during previous extensive flooding periods, while inorganic nitrogen concentrations were in the same range (Espinar and Serrano 2009). The application of a literature-based ionic ratio (Na ?…”

Section: Discussionmentioning

confidence: 57%

Mediterranean temporary ponds as amphibian breeding habitats: the importance of preserving pond networks

et al. 2009

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We describe the spatial and temporal variation in the main characteristics of amphibian breeding habitats in Doñana National Park (south of Spain), during two hydrologic cycles with different rainfall amounts and timing (2002-2003 and 2005-2006). We also evaluate amphibian habitat requirements following a model selection approach based on Akaike's Information Criterion. Our results evidenced large spatial variability in all pond characteristics and inter-annual differences in pond hydroperiod, depth, and most water-chemistry characteristics. We observed a remarkable independence of pond characteristics at different sampling dates, suggesting that a pond description based on a single survey may not be representative. Eight of nine amphibian species attempted breeding in both years in spite of the marked inter-annual variability. Habitat models were species-specific and year-specific, as we found interannual differences in the pond characteristics relevant for species richness or for the relative abundance of particular species. All these results suggest that this large and diverse network of ponds provides different habitat opportunities each year, favouring the long-term persistence of the whole amphibian community.

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Section: Discussionmentioning

confidence: 57%

Mediterranean temporary ponds as amphibian breeding habitats: the importance of preserving pond networks

et al. 2009

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“…There are also two large semi-permanent ponds which only occasionally dry in years of severe drought, and some natural ponds have been artificially deepened to supply water for cattle and wild mammals, making them permanent in most years. A detailed description of the environmental characteristic of these ponds is given in Gómez-Rodríguez et al (2009), Espinar and Serrano (2009) and Díaz-Paniagua et al (2010.…”

Section: Study Areamentioning

confidence: 99%

Spatio-temporal nested patterns in macroinvertebrate assemblages across a pond network with a wide hydroperiod range

et al. 2010

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Nestedness has been widely used to measure the structure of biological communities and occurs when species-poor sites contain subsets of species-rich ones. Here, we examine nested patterns across the macroinvertebrate assemblages of 91 ponds in Doñana National Park, Spain, and explore temporal variation of nestedness and species richness in 19 temporary ponds over 2 years with differing rainfall. Macroinvertebrate assemblages were significantly nested; both pond spatial arrangement and environmental variation being important in driving nested patterns. Despite the nested structure observed, a number of taxa and ponds deviate from this pattern (termed idiosyncratic), by occurring more frequently than expected in species-poor sites, or having assemblages dominated by species largely absent from species-rich sites. Aquatic adults of winged insects, capable of dispersal, were more highly nested than non-dispersing taxa and life-history stages. Idiosyncratic taxa were found in ponds spanning a wide range of hydroperiods, although nestedness was higher in more permanent waterbodies. Monthly sampling demonstrated a gradual increase of species richness and nestedness from pond filling to April-May, when the most temporary ponds started to dry. Although the degree of nestedness of individual pond assemblages varied from month to month, the overall degree of nestedness in the two study years was practically identical despite marked differences in hydroperiod. Our results suggest that differential colonization and environmental variation are key processes driving the nested structure of Doñana ponds, that macroinvertebrate assemblages change in a predictable manner each year in response to cycles of pond wetting and drying, and that connectivity and environmental variability maintain biodiversity in pond networks.

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“…4). Compared to the marshlands, the Doñana ponds exhibited lower electrical conductivities, Na + /Ca 2+ ratios, i-P concentrations and a slightly acidic or circumneutral pH (Espinar and Serrano, 2009). Similarly to the merja at sites 2 and 3 (Tabs.…”

Section: Discussionmentioning

confidence: 90%

“…4. Ranges of several limnological variables in the Merja Sidi Boughaba during our seasonal study (2009) and in previous seasonal studies (1997)(1998)(1999), as well as in ponds and marshes of the Doñana National Park throughout the spring of 1996, 1997 and 1998, and the autumn of 1997, 1998 and 1999. Variables Merja Sidi Doñana Doñana Boughaba ponds # marshes § (2009) (1997-1999)°(1996-1999) (1996-1997) Fathi et al (2001); # Serrano et al (2003, Espinar and Serrano (2009); § Espinar (2000). o n l y (Golterman, 2004) can explain the lack of a significant correlation (P>0.05) between the concentrations of Tot-P and planktonic chlorophyll in the water, while turbidity was significantly correlated with both Tot-P and particulate P concentrations.…”

Section: Discussionmentioning

confidence: 99%

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Ecological similarities between two Mediterranean wetlands: Sidi Boughaba (North-West Morocco) and the Doñana National Park (South-West Spain)

et al. 2013

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Addressing the underlying common processes within aquatic systems located in the same geographical region has long been used as a tool for the advancement of limnology. A limnological study of the Merja Sidi Boughaba in 2009 has shown that there are many common features between the physico-chemical and biological conditions of this site and previous data reported from some of the wetlands of the Doñana National Park (South-West Spain). Both are Ramsar sites located on extensive dune systems of the Atlantic coast with a Mediterranean climate. They have a common palaeoenvironmental history that is largely responsible for their similar hydrology and water composition. Oceanic influence has probably produced a slight disproportion of Mg²⁺ over Ca²⁺ through airborne sea salt deposition and the surface evaporation of groundwater feeding these wetlands during annual flood and drought cycles. The wide spectrum of environmental conditions encountered in the Doñana wetlands is epitomised by the Merja Sidi Boughaba, where water and sediment gradually change in the same water body from north to south: from humic-coloured waters and a sandy substrate to a calcium-rich substrate with turbid and silted waters which eventually dry out. As a consequence, the community of submersed macrophytes is very rich and dominated by dense charophyte beds. The high primary production coupled with high biodiversity found in the Merja Sidi Boughaba is also shared by the Doñana wetlands. The high conservation status of both sites enables a useful comparison to be made of the water quality of shallow aquatic systems at a regional scale which, contrary to the trophic classifications developed for deep stratified lakes in temperate regions, is not based on regressions between the concentrations of chlorophyll and total phosphorus (Tot-P) but on the proportions of dissolved and particulate P pools. In these Mediterranean sites, nutrients are more efficiently recycled through the sediment (whether deposited at the bottom or suspended in the water column) while seasonal fluctuations of the water level are stronger than in deep stratified lakes and, hence, no significant correlation was found between chlorophyll and either total or particulate P in our study.

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A quantitative hydrogeomorphic approach to the classification of temporary wetlands in the Doñana National Park (SW Spain)

Cited by 31 publications

References 19 publications

Mediterranean temporary ponds as amphibian breeding habitats: the importance of preserving pond networks

Mediterranean temporary ponds as amphibian breeding habitats: the importance of preserving pond networks

Spatio-temporal nested patterns in macroinvertebrate assemblages across a pond network with a wide hydroperiod range

Ecological similarities between two Mediterranean wetlands: Sidi Boughaba (North-West Morocco) and the Doñana National Park (South-West Spain)

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