Recent limnological changes in a saline lake of the Bolivian Altiplano, Lake Poopo

Iltis, André

doi:10.1007/bf02905049

Cited by 12 publications

(8 citation statements)

References 7 publications

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“…A surface area of 3010 km 2 , obtained via a Landsat TM satellite image when the lake was spilling over in 1986, was thought to be the maximum surface area. This reported surface area is close to that suggested by Iltis (1993). This value, however, could correspond to the lake area when the lake is above the sill level.…”

Section: Previous Investigations Of Lake Poopó Bathymetrysupporting

confidence: 91%

“…When the surface area of Lake Uru‐Uru is ≈130 km 2 , the lake spills over into Lake Poopó. The maximum surface extension of Lake Uru‐Uru, which did not exist 100 years ago, is ≈350 km 2 (Iltis 1993). The Desaguadero River changed its course during high flows in 1985, when the present main branch directly to Lake Poopó was created.…”

Section: Hydrology Of Lake Poopó Regionmentioning

confidence: 99%

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Three methods for determining the area–depth relationship of Lake Poopó, a large shallow lake in Bolivia

Zolá

Bengtsson

2007

Lakes & Reservoirs

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Lake Poopó in Bolivia is a large, extremely shallow lake. The lake surface area is ≈3000 km 2 at its spill-over level, although it could dry out at times. The lake water level varies with the regional rains and with the water inflow from the Desaguadero River. This study focuses on using and comparing three different approaches to determine the hypsographic curve for the lake. As the lake is extremely shallow, depth measurements must be conducted from a slowly moving boat using a rod. The accuracy using echo-sounding of the lake is poor. The second approach, which can be applied because the lake water level can vary considerably, and because the lake sometimes is almost dry, is to relate the lake surface area determined from satellite images to elevations determined from benchmarks on an island in the lake. The third method is an indirect one, in which the change in lake water volume over the period between two satellite images is determined from water balance computations and subsequently related to changes in the water surface area, as determined from the satellite images. Determination of the shoreline for different water levels in the lake is affected by errors related to the tilting of the water surface, and because wind forces the water to move several hundred metres towards the windward shore of the lake during a measurement survey.

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Section: Previous Investigations Of Lake Poopó Bathymetrysupporting

confidence: 91%

Section: Hydrology Of Lake Poopó Regionmentioning

confidence: 99%

Three methods for determining the area–depth relationship of Lake Poopó, a large shallow lake in Bolivia

Zolá

Bengtsson

2007

Lakes & Reservoirs

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“…The Desaguadero River changed its course in 1985. Prior to 1985, according to Iltis (1993), the entire Desaguadero River ran through Lake Uru-Uru before reaching Lake Poopó. Iltis also reports that Lake UruUru did not exist 100 year ago.…”

Section: Palaeological and Historical Lake Conditionsmentioning

confidence: 99%

“…Naveu-Lemaire suggested a maximum lake area of 2530 km 2 and Boulange a maximum area of 2650 km 2 . Iltis (1993) claims that the lake was 3500 km 2 when it spilled over in [1985][1986]. An updated bathymetry map (Fig.…”

Section: Bathymetrymentioning

confidence: 99%

Long-term and extreme water level variations of the shallow Lake Poopó, Bolivia

Zolá

Bengtsson

2006

Hydrological Sciences Journal

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Lake Poopó, within the large Altiplano basin of Bolivia, is connected upstream to Lake Titicaca and downstream to the salares, the big salt fields. Small changes in precipitation and river inflows strongly affect the extent of the lake surface area. For times when there are no satellite images, it is difficult to determine the extent of the lake from observations. Water balance computations were performed to create a water-level series for Lake Poopó extending back in time. The dominant water inflow to Lake Poopó is from the River Desaguadero, which constitutes the outflow of Lake Titicaca. The water-balance computations confirm the crude peasant knowledge about historical lake status. It is found that if the lake level is less than 1 m during the wet season, there is a risk that this shallow lake dries out in the dry season.

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“…'~o r~h o m e t r i c parameters for highest water level prior to 1985; for more recent data, see Iltis (1993). gMorphometric parameters for 1982 from LANDSTAT satellite imagery (G.J.…”

Section: Acanthocyclops Miryniimentioning

confidence: 99%

Distinctive aspects of the zooplankton of large lakes in Australasia, Antarctica and South America

Bayly¹

1995

Mar. Freshwater Res.

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Not only has the degree of species-level cosmopolitanism amongst zooplanktonic organisms been considerably overestimated, but differences between the different classical biogeographic regions (established from terrestrial studies) occur at supra-specific levels as high as family or even suborder. The Centropagidae, and particularly the genus Boeckella, are found in New Zealand, most of Australia, southern and high altitude regions of South America, and around the periphery of Antarctica. The biogeography and ecology of this family is discussed in detail. Most predaceous families of Cladocera are entirely absent from the Australian and Neotropical regions. The genus Daphniopsis occurs in salt lakes in Australia and South America and in freshwater lakes in Antarctica. In southern Australia numerous species of ostracod have colonized the limnetic region of salt lakes, and the largest of these prey on species of Calamoecia, Daphniopsis and small ostracods. Chaoboridae are absent from New Zealand as, too, are obligate planktivorous fish. The Chilean flamingo, Phoenicopterus chilensis, and Wilson's phalarope, Phalaropus tricolor, are significant predators on Boeckella poopoensis in salt lakes on the Andean Altiplano and elsewhere in South America.

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Recent limnological changes in a saline lake of the Bolivian Altiplano, Lake Poopo

Cited by 12 publications

References 7 publications

Three methods for determining the area–depth relationship of Lake Poopó, a large shallow lake in Bolivia

Three methods for determining the area–depth relationship of Lake Poopó, a large shallow lake in Bolivia

Long-term and extreme water level variations of the shallow Lake Poopó, Bolivia

Distinctive aspects of the zooplankton of large lakes in Australasia, Antarctica and South America

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