@Article{AraújoOOMSSPRMF:2018:ReVaPr,
author = "Ara{\'u}jo, Ana Gabriela de Jesus and Obreg{\'o}n Parraga,
Guillermo Oswaldo and Oliveira, Gilvan Sampaio de and Monteiro,
Ant{\^o}nio Miguel Vieira and Silva, Luiz Tadeu da and Soriano,
Balbina and Padovani, Carlos and Rodriguez, Daniel Andres and
Maksic, Jelena and Farias, Jos{\'e} Felipe Silva",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Empresa Brasileira de Pesquisa Agropecu{\'a}ria
(EMBRAPA)} and {Empresa Brasileira de Pesquisa Agropecu{\'a}ria
(EMBRAPA)} and {Universidade Federal do Rio de Janeiro (UFRJ)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade de {\'E}vora}",
title = "Relationships between variability in precipitation, river levels,
and beef cattle production in the Brazilian Pantanal",
journal = "Wetlands Ecology and Management",
year = "2018",
volume = "26",
number = "5",
pages = "829--848",
month = "Oct.",
keywords = "Pantanal wetlands Hidrological spatiotemporal variability Beef
cattle production Paraguay River.",
abstract = "The hydrology of the Brazilian Pantanal, part of the largest humid
tropical area on the planet, follows the rhythm of seasonal
floods. The traditional movement of cattle herds in the southern
Pantanal is defined by these seasonal flooding patterns, which
determine the availability and quality of native-grass pastures
throughout the year. Extreme hydrological events, such as
prolonged droughts and intense floods, can impact the management
of cattle in this region, preventing access to, circulation
within, and occupation of some grazing areas. This study aims to
analyze the spatial and temporal variability of precipitation, the
river levels in this region from 1974 to 2012, and assessed the
effects on the evolution of local beef cattle stocks. We
integrated the spatiotemporal variability of precipitation and
river levels for six gaging stations and standardized these
variables using standard deviation and linear trends at annual and
seasonal scales. Additionally, we integrated the results with an
analysis of the livestock production within the regions
municipalities. Regional precipitation was highly variable,
including an almost decadal oscillation, with positive trends in
parts of the 1970s and 1980s and a negative trend since the 1990s.
River levels in the northern portion of the basin and in the
Paraguay River corresponded to those dynamics while presenting
marked anomalies. Simultaneously, river levels in the eastern
Pantanal changed from negative to positive anomalies, which were
more intense in wet months. Both the eastern and western patterns
reflected the occurrence of extreme El NiñoSouthern Oscillation
events and other large-scale climatic patterns. In intra-annual
terms, the variability of the river levels during the flooded
months at four of the six gaging stations studied suggests an
early onset or delay of the flood season, as well as positive
anomalies in the ebbing months and in the southeast. Given the
lags in flow between different rivers in the region, this behavior
draws attention to dam construction and intensification of
localized flooding in the southern areas, which may impact
everyday life and cattle management. For example, from 2009 to
2012, two severe droughts and an extreme flood significantly
impacted livestock numbers in the region. Overall, herd numbers
decreased (increased) in humid (dry) periods, including a
reduction of over 1 million head during the flood of 19731974. The
differential level patterns at annual, wet season, and dry season
between the eastern and western sides of the Pantanal modulate the
livestock activities, where the strong negative anomalies of the
levels along the eastern side seem to force the diminution of beef
cattle stock at local regions in different intensities in annual
scale. This reinforces the effects of climate variability and
extreme hydrological events on the management and dynamics of the
beef cattle industry and market in Brazil.",
doi = "10.1007/s11273-018-9612-0",
url = "http://dx.doi.org/10.1007/s11273-018-9612-0",
issn = "0923-4861",
language = "en",
targetfile = "araujo_relationships.pdf",
urlaccessdate = "27 abr. 2024"
}