Successional changes in two dune ponds (Doñana National Park)

Toja, Julia; López, Tomás; Gabellone, Néstor Adrián

doi:10.1080/03680770.1989.11899020

Cited by 14 publications

(8 citation statements)

References 2 publications

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“…Nutrient concentrations and primary production vary widely depending on hydrological conditions, being generally higher in more permanent ponds. Detailed information on the limnology of some of these ponds can be found in Lo´pez et al (1991), Toja et al (1991), Serrano and Toja (1995) and Serrano et al (2006). As a whole, these water bodies support a rich aquatic fauna, including several species endemic to the Iberian-Balear region: six amphibians (Dı´az-Paniagua et al, 2005), eight micro-crustaceans (Serrano and Fahd, 2005), four coleopterans (Milla´n et al, 2005), and one rotifer species known only to Don˜ana (Galindo et al, 1994).…”

Section: Study Areamentioning

confidence: 99%

The relevance of preserving temporary ponds during drought: hydrological and vegetation changes over a 16‐year period in the Doñana National Park (south‐west Spain)

Serrano

Zunzunegui

2007

Aquatic Conservation

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ABSTRACT1. Although the Don˜ana National Park is given the highest degree of environmental protection in Spain, it is likely that groundwater discharge to several ponds within the Biological Reserve has been damaged by abstraction to a tourist resort located less than 1 km away.2. Hydrological changes were monitored over 16 years (1 October 1989 to 30 September 2005) by recording the shallow water table of six temporary ponds at 1-8-week intervals, and the duration of pond wet phase (or hydroperiod) during each hydrological cycle.3. The average rainfall for the study period was 563.2 mm, and included 6 wet, 5 moderate, and 5 dry years in a seemingly random sequence. The average rainy season extended from October until the end of March, while the dry season occupied the rest of the year.4. The water table generally oscillated following this alternation of rainy and dry seasons, but this fluctuation was minimal during dry years, and even failed to occur at some ponds.5. Since 1998/99, the average hydroperiod has shortened by 3 months at Charco del Toro pond, and by almost 2 months at Brezo pond, while the rest of the ponds exhibited a reduction of less than 1 month.6. Vegetation changed in the ponds between May 1990 and 2005. Total plant cover increased (range of increase: 16-65%), and species richness decreased in all ponds (range of species loss: 4-18).7. The reduction in the hydroperiod probably enhanced the growth of a few woody plants to the detriment of flooding-dependent species as the cover of Pinus pinea increased nearly fourfold at Brezo pond, while that of Scirpus lacustris was halved at Charco del Toro pond.8. The pumping area for the nearby tourist resort should be relocated, and a specific management strategy should be developed in order to prevent further damage to the ponds.

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Section: Study Areamentioning

confidence: 99%

The relevance of preserving temporary ponds during drought: hydrological and vegetation changes over a 16‐year period in the Doñana National Park (south‐west Spain)

Serrano

Zunzunegui

2007

Aquatic Conservation

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“…Nutrient concentrations and primary production can also vary widely depending on hydrological conditions (Serrano and Toja, 1995). Detailed information on the limnology of some of these ponds can be found in Lo´pez et al (1991), Toja et al (1991) and Serrano and Toja (1995). Temporary ponds in Don˜ana are not subject to any specific conservation measure other than the protection afforded by general habitat protection.…”

Section: Study Areamentioning

confidence: 99%

The effect of the sampling scale on zooplankton community assessment and its implications for the conservation of temporary ponds in south‐west Spain

Fahd

Florencio

Keller

et al. 2006

Aquatic Conservation

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ABSTRACT1. The zooplankton (rotifer and microcrustacean) assemblages of temporary ponds in the Don˜ana National Park (south-west Spain) have been compared in two surveys of contrasting scales that resulted in the same number of samples: an extensive survey of 36 ponds sampled in May 1998 (or widespread survey) and a survey of nine ponds sampled four times over 2 years (or cumulative survey).2. The total number of microcrustacean and rotifer taxa was larger in the cumulative survey (43 and 41 taxa, respectively) than in the widespread survey (39 and 34, respectively). Crustacean assemblages became less alike throughout the cumulative survey.3. The presence of invertebrates (Coleoptera, Odonata, Heteroptera and crayfish) and aquatic vertebrates (fish and salamanders) was recorded as an estimate of potential predator impact on zooplankton. Several pond features (water depth, conductivity, pH, chlorophyll a concentration, distance to the nearest permanent pond and to the marsh) were also measured in both surveys.4. A combination of these environmental factors was more strongly related to the similarity matrices derived from the zooplankton assemblages of the cumulative survey (Rho ¼ 0:7) than to those of the widespread survey (Rho50.4). The distance of ponds to the marsh was an important factor in explaining this correlation as well as the strongest factor in the ordination of crustacean assemblages following a CCA.5. Predation by exotic fish in long-hydroperiod ponds where overflow drains to the nearby marsh (fish source) is the mechanism likely to explain the changes in crustacean composition recorded in the cumulative survey.6. The cumulative survey was more suitable for the study of zooplankton diversity as it rendered a higher number of taxa and gave more insight into the mechanisms that explain taxon richness. Thus,

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“…En esta zona también se disponen un conjunto de lagunas costeras, con unas propiedades hidrológicas, geoquímicas, mineralógicas y edafológicas especiales (Recio et al, 2009). Muchas de ellas son semipermanentes, de escasa profundidad (< 3 m), presentan bajas conductividades (< 10 mS/cm excepto en épocas de sequía) un pH levemente ácido a muy alcalino (5-11) y se localizan en suelos eólicos muy permeables (Vanney & Menanteau, 1985;Toja et al, 1991).…”

Section: El Parque Nacional De Doñanaunclassified

Evolución paleoambiental de una turbera finiholocena en el sector suroccidental del Parque Nacional de Doñana (S.O. España)

et al. 2019

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El análisis multidisciplinar de un perfil descubierto por las tormentas invernales en el litoral del Parque Nacional de Doñana ha permitido reconstruir la evolución de su sector occidental durante el Holoceno superior. Se han definido 3 fases que reflejan el paso desde una marisma de aguas salobres (FA-1) a una laguna de aguas dulces transformada en turbera (FA-2), para finalizar con el depósito de cordones dunares (FA-3).

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Successional changes in two dune ponds (Doñana National Park)

Cited by 14 publications

References 2 publications

The relevance of preserving temporary ponds during drought: hydrological and vegetation changes over a 16‐year period in the Doñana National Park (south‐west Spain)

The relevance of preserving temporary ponds during drought: hydrological and vegetation changes over a 16‐year period in the Doñana National Park (south‐west Spain)

The effect of the sampling scale on zooplankton community assessment and its implications for the conservation of temporary ponds in south‐west Spain

Evolución paleoambiental de una turbera finiholocena en el sector suroccidental del Parque Nacional de Doñana (S.O. España)

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