Bird Community Structure in Macrohabitats of the Aquaticterrestrial Transition Zone in the Pantanal Wetland, Brazil

Frota, Angélica Vilas Boas da; Vitorino, Breno Dias; Silva, Carolina Joana da; Castrillon, Solange Kimie Ikeda; Nunes, Josué Ribeiro da Silva

doi:10.4257/oeco.2020.2403.07

Cited by 8 publications

(4 citation statements)

References 31 publications

(36 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Changes in the trait composition between hydrological periods were observed for wetland birds and non-wetland birds. Bird composition usually varies depending on the available macrohabitat types in each hydrological period (Frota et al 2020a). Our result also highlights the importance of the flood pulse for the maintenance of the functional role of these birds, here demonstrated by the functional composition based on dominant traits of bird assemblages.…”

Section: Trait Compositionsupporting

confidence: 63%

Bird dependence on wetlands determines functional responses to flood pulse in the Brazilian Pantanal

et al. 2022

Self Cite

View full text Add to dashboard Cite

Hydrological dynamics of the Pantanal wetland drive the availability of resources and niche for aquatic and terrestrial fauna. We consider that changes in the hydrological regime of this floodplain can affect species richness, abundance and functional structure of waterbirds, wetland birds and non-wetland birds. Our study aimed to assess whether the degree of wetland dependence influences the response of bird groups to the flood pulse. We conducted the bird survey in the Paraguay River floodplain system, in five sampling sites, covering the periods of drought, flooding, full flood and ebb of the 2017-2018 hydrological cycle. Species richness and abundance were higher for non-wetland birds than waterbirds and wetland birds.On the other hand, we found that the higher the degree of wetland dependence by birds, the higher the differences in the functional-trait values. Species richness, abundance and all metrics of functional diversity varied significantly when there was an interaction between the degree of wetland dependence and the hydrological period. In all hydrological periods, bird groups occupied distinct niches. Traits such as foraging around or below the water surface were among the dominant functional traits in all hydrological periods. We emphasize the need to consider the functional traits of species in ecological studies of wetlands since measuring only species richness may not reflect the characteristics inherent to this type of ecosystem.In addition, the conservation of wetlands directly implies the maintenance of various niches throughout the hydrological periods, either for dependent or non-dependent bird species in wetlands.

show abstract

Section: Trait Compositionsupporting

confidence: 63%

Bird dependence on wetlands determines functional responses to flood pulse in the Brazilian Pantanal

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…As for pond environments in the state of Minas Gerais, an increase in bird abundance was observed in the dry season, however, the estimated species richness did not differ between seasons (RODRIGUES et al, 2005), findings that corroborate with this study. Thus, differing from the fluvial-lacustrine sector of the Paraguay River, where no difference was found in the richness and abundance between the periods, but for the composition of bird species (FROTA et al, 2020a).…”

Section: Environmental Variation and Hydrological Periodsmentioning

confidence: 80%

“…This denotes the importance of marginal bays in maintaining species in the river. Lateral flooding is decisive in the Pantanal environment in terms of connectivity between rivers and adjacent bays (JUNK et al, 1989), and is also of fundamental importance for birds that inhabit aquatic and terrestrial transition zones (FROTA et al, 2020a).…”

Section: Environmental Variation and Hydrological Periodsmentioning

confidence: 99%

“…Due to factors such as the great diversity of birds, the extraordinary abundance of water birds and the formation of large nests, this wetland system is internationally recognized as one of the most important areas in the world for bird watching and research (SICK, 1997;SILVA et al, 2001;TUBELIS et al, 2003). The diversity of natural habitats in the Pantanal offers breeding niches and great feeding options for bird species (SILVA et al, 2001;JUNK et al, 2006;FROTA et al, 2020a), and is important for several migratory species that use its floodplain as reproductive and foraging sites during the rest of continental and intercontinental displacements (SICK, 1997;NUNES et al, 2004;NUNES et al, 2006;FROTA et al, 2020b). This biological group stands out both for its diversity and adaptation to different environments, as well as for providing important environmental bioindicators (OLIVEIRA, 1995;PRIMACK et al, 2002), as they are sensitive to changes and respond quickly to disturbances in their habitat.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Changes in the structure of bird communities over 10 years in the Ecological Corridor of Paraguay River, Pantanal wetland

Queiroz

Vitorino

Frota

et al. 2021

RICA

Self Cite

View full text Add to dashboard Cite

Studies with bird communities related to the hydrogeomorphological characteristics of climatic rivers associated with flood areas are important to identify short and long term temporal space changes. In this perspective, this research aims to evaluate the structure of the bird community of the Paraguay River, through the richness of descriptors, the quantity and the diversity and equability index over an interval of 10 years, 2008 / 9-2018 / 19 , considering the economies of the hydrological cycle, floods, floods, emptiness and drought and sampled macrohabitats. The study was developed addressing a connected hydrology of the Paraguay River, in the longitudinal and lateral dimensions. A study area comprised of three functional sectors of the Paraguay River, meandering, rectilinear and transitional, beginning in the urban period of the municipality of Cáceres-MT, up to a Descalvada Farm, with a 134 km course of the river, with 13 points in total. Each functional sector of the river, had a sampling point and 10 parental bays, with different degrees of lateral connectivity, were sampled. A survey analyzed and compared two hydrological sampling cycles, the first between June 2008 and March 2009, and the second between August 2018 and April 2019. The protocol for the sampling consisted of four campaigns corresponding to the hydrological drought studies, flood, full and ebb. The results pointed to a distinction in the community structure between the two cycles 2008/2009 - 2018/2019 show a difference in the relative scope and in the composition of the species in the sampled locations. The main change registered between the two cycles (2008/2009 and 2018/2019) was the disappearance of three nests - habitat for feeding and reproduction of colonial birds, identified in the first and without registration in the second cycle. The dominance of Mycteria americana is highlighted, a species sensitive to environmental changes, not observed in the first cycle of studies. The absence of nests in 2018/2019, coupled with the dominance of Pitangus sulphuratus, a generalist species, may indicate anthropic changes that occurred along the Paraguay River in this time interval. It is hoped that the results of this comparison will be able to subsidize or influence the effective decision-making for the conservation of the biodiversity of birds and the Paraguay and Pantanal river itself.

show abstract

An overview of the diet of the Great Black Hawk Urubitinga urubitinga (Accipitriformes: Accipitridae) and report of new prey species

et al. 2021

View full text Add to dashboard Cite

Bird Community Structure in Macrohabitats of the Aquaticterrestrial Transition Zone in the Pantanal Wetland, Brazil

Cited by 8 publications

References 31 publications

Bird dependence on wetlands determines functional responses to flood pulse in the Brazilian Pantanal

Bird dependence on wetlands determines functional responses to flood pulse in the Brazilian Pantanal

Changes in the structure of bird communities over 10 years in the Ecological Corridor of Paraguay River, Pantanal wetland

An overview of the diet of the Great Black Hawk Urubitinga urubitinga (Accipitriformes: Accipitridae) and report of new prey species

Contact Info

Product

Resources

About