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Effects of Severe Floods and Droughts on Wildlife of the Pantanal Wetland (Brazil)-A Review.

Alho CJ, Silva JS - Animals (Basel) (2012)

Bottom Line: The remainder is either grasslands or seasonally flooded grasslands.The regional flora and fauna are adapted to annual water fluctuation.Plants and wild animals, for example, are affected by tree mortality in riparian forest after extreme flooding, with consequent habitat modification for wild animals.

View Article: PubMed Central - PubMed

Affiliation: Graduate Program on Environment and Regional Development, Anhanguera-Uniderp University, Campo Grande, 79003-010, MS, Brazil. alho@unb.br.

ABSTRACT
Flooding throughout the Pantanal is seasonal. The complex vegetative cover and high seasonal productivity support a diverse and abundant fauna. A gradient in flood level supports a range of major habitats in a complex mosaic with annual seasonality. The rivers and streams are lined with gallery forests, and other arboreal habitats exist in the more elevated areas. The remainder is either grasslands or seasonally flooded grasslands. The regional flora and fauna are adapted to annual water fluctuation. However, an inter-annual series of higher or lower rainfalls has caused either severe floods or drastic dry seasons. Large scale climate phenomena such as greenhouse gases, El Niño and La Niña influence the seasonality of floods and droughts in the Pantanal. Knowledge of severe floods and droughts, which characterize natural disasters, is fundamental for wildlife management and nature conservation of the Pantanal. Plants and wild animals, for example, are affected by tree mortality in riparian forest after extreme flooding, with consequent habitat modification for wild animals. In addition, human activities are also affected since cattle ranching and ecotourism are economically important in the region, and when seasons with unusual floods or droughts occur, areas with human settlements are impacted.

No MeSH data available.


Related in: MedlinePlus

Historical events of flooding in the Pantanal during the last 111 years (January 1900 through November 2011), observed on the Paraguay River recorded by the flood gauge of the fluviometric station at Ladário.
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animals-02-00591-f002: Historical events of flooding in the Pantanal during the last 111 years (January 1900 through November 2011), observed on the Paraguay River recorded by the flood gauge of the fluviometric station at Ladário.

Mentions: Historical records collected at Ladário (Figure 2) show that during the period from 1962/1963 to 1972/1973 in the Pantanal was unusually dry. This was then followed by a long wet period which has lasted until the present day. During the 11-year dry period, there were no records of flooding, except for 1965–1966, when 16 cm of water was observed above the zero mark (82.4 meters in relation to sea level), and the majority of the flooding peaks were observed between one and two meters.


Effects of Severe Floods and Droughts on Wildlife of the Pantanal Wetland (Brazil)-A Review.

Alho CJ, Silva JS - Animals (Basel) (2012)

Historical events of flooding in the Pantanal during the last 111 years (January 1900 through November 2011), observed on the Paraguay River recorded by the flood gauge of the fluviometric station at Ladário.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4494280&req=5

animals-02-00591-f002: Historical events of flooding in the Pantanal during the last 111 years (January 1900 through November 2011), observed on the Paraguay River recorded by the flood gauge of the fluviometric station at Ladário.
Mentions: Historical records collected at Ladário (Figure 2) show that during the period from 1962/1963 to 1972/1973 in the Pantanal was unusually dry. This was then followed by a long wet period which has lasted until the present day. During the 11-year dry period, there were no records of flooding, except for 1965–1966, when 16 cm of water was observed above the zero mark (82.4 meters in relation to sea level), and the majority of the flooding peaks were observed between one and two meters.

Bottom Line: The remainder is either grasslands or seasonally flooded grasslands.The regional flora and fauna are adapted to annual water fluctuation.Plants and wild animals, for example, are affected by tree mortality in riparian forest after extreme flooding, with consequent habitat modification for wild animals.

View Article: PubMed Central - PubMed

Affiliation: Graduate Program on Environment and Regional Development, Anhanguera-Uniderp University, Campo Grande, 79003-010, MS, Brazil. alho@unb.br.

ABSTRACT
Flooding throughout the Pantanal is seasonal. The complex vegetative cover and high seasonal productivity support a diverse and abundant fauna. A gradient in flood level supports a range of major habitats in a complex mosaic with annual seasonality. The rivers and streams are lined with gallery forests, and other arboreal habitats exist in the more elevated areas. The remainder is either grasslands or seasonally flooded grasslands. The regional flora and fauna are adapted to annual water fluctuation. However, an inter-annual series of higher or lower rainfalls has caused either severe floods or drastic dry seasons. Large scale climate phenomena such as greenhouse gases, El Niño and La Niña influence the seasonality of floods and droughts in the Pantanal. Knowledge of severe floods and droughts, which characterize natural disasters, is fundamental for wildlife management and nature conservation of the Pantanal. Plants and wild animals, for example, are affected by tree mortality in riparian forest after extreme flooding, with consequent habitat modification for wild animals. In addition, human activities are also affected since cattle ranching and ecotourism are economically important in the region, and when seasons with unusual floods or droughts occur, areas with human settlements are impacted.

No MeSH data available.


Related in: MedlinePlus