Effects of flooding on trees in the semi-deciduous transition forests of the Araguaia floodplain, Brazil

Kurzatkowski, Dariusz; Leuschner, Christoph; Homeier, Jürgen

doi:10.1016/j.actao.2015.08.002

Cited by 25 publications

(18 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…We expected that the combination of these two stressors (i) has a negative effect on forest productivity and standing biomass, and (ii) represents an effective environmental filter, which largely determines the species composition of the floodplain forests at different heights on the river banks. In support of our first assumption, a biomass inventory found that canopy height and aboveground live tree biomass (AGB) are indeed lower in the Araguaia floodplain forest than in the less seasonal floodplain forests of the central Amazon (Kurzatkowski et al 2015).…”

Section: Introductionmentioning

confidence: 72%

See 1 more Smart Citation

Stand dynamics of the drought-affected floodplain forests of Araguaia River, Brazilian Amazon

2017

Self Cite

View full text Add to dashboard Cite

Background: The floodplain forests of Araguaia River, a clear-water river in the southeastern Amazon (Tocantins State, Brazil), are characterized by seasonal flooding up to 3.5 m height, low nutrient levels in the water, and seasonal drought periods of 4-5 months. Methods: We studied the forest dynamics (tree diameter growth, tree mortality and recruitment) of this unique forest ecosystem over a 5-year period by repeated censuses in 12 permanent plots established along a flooding gradient. Results: The cumulative basal area in the plots increased by 0.84 (±0.45) m

show abstract

Section: Introductionmentioning

confidence: 72%

“…The region has a hot, semi-humid tropical seasonal climate with 1755 mm average annual precipitation (Kurzatkowski et al 2015). The rainy period lasts from November to April/May, followed by a distinct dry season from May/June to September with monthly precipitation totals of 50 mm or less in these 4 to 5 months.…”

Section: Study Areamentioning

confidence: 99%

Stand dynamics of the drought-affected floodplain forests of Araguaia River, Brazilian Amazon

2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…Esta dominancia puede variar entre comunidades según la intensidad y duración de la inundación (Olmsted & Durán, 1986;López & Kursar, 2003;Cortés-Castelán & Islebe, 2005;Kurzatkowski et al, 2015) o de la capacidad de las especies de los BTA's adyacentes para generar ecotipos adaptables a la inundación que contribuyan a aumentar la riqueza florística y equidad del ensamblaje de especies de los BTI's (Ellison, 2004;Flinn et al, 2008).…”

Section: Discussionunclassified

“…Debido a que ambas especies han sido reconocidas como típicas de los bosques inundables de la península de Yucatán (Miranda, 1978;Lot & Novelo, 1990;Olmsted, 1993;Rzedowski, 2006), posiblemente posean adaptaciones fisiológicas como mecanismos de regulación fotosintética, metabólica o de eficiencia en la oxigenación de tejidos (López, 2009;Parolin et al, 2004;Kurzatkowski et al, 2015).…”

Section: Discussionunclassified

“…A diferencia de las especies de árboles que sobreviven en hábitats de inundación prolongada, en los BTI's, la mayoría carecen de adaptaciones morfológicas típicas de ambientes anóxicos (Kurzatkowski, Leuschner, & Homeier, 2015), como son la presencia de contrafuertes, alta densidad de lenticelas, raí-ces zancudas o grandes diámetros (Parolin, De Simone, Haase, & Waldhoff, 2004;López, 2009). En la península de Yucatán los arboles dominantes de BTI's son espinosos, muy ramificados, con alturas promedio de siete metros y caducifoleidad aproximada del 50 % durante la época más seca del año (Miranda, 1978;Olmsted, 1993;Flores & Espejel, 1994;Schultz, 2005).…”

unclassified

See 1 more Smart Citation

Diversidad, estructura y afinidades florísticas de un bosque temporalmente inundable de la Península de Yucatán

Albor-Pinto

Tun‐Garrido

Ortíz-Díaz

2017

RBT

View full text Add to dashboard Cite

Diversity, structure and floristic affinities of a temporarily flooded forest of the Yucatan Peninsula. Temporarily flooded forests (TFF's) are among the most endangered tree communities in Southeast Mexico and in a contradictory way among the least known in terms of their diversity. Therefore, the aim of this study was to characterize the richness, diversity (Shannon-Wiener) and dominance (relative importance value; RIV) of a TFF of the Yucatan Peninsula, and evaluate its floristic affinities with other TFF's and upland forests (UF's) of Southeast Mexico. A sampling method based on 10 quadrants of 10 x 20 m (2 000 m 2 ) was used to record all woody individuals with diameter ≥ 1 cm and height ≥ 1.5 m. A floristic similarity analysis was used including 192 genera of woody plants belonging to TFF's and UF's of the Yucatan and Tabasco TFF's. A Mantel correlation test was performed to determine if the geographic distance has effect on the floristic similarities between TFF's and UF´s of the Yucatan peninsula. The TFF under study was characterized with a low level of diversity (2.79) and species richness (56), and a high dominance level (52.3 % of RIV in five species). Dominant species such as Haematoxylum campechianum, Dalbergia glabra, Cameraria latifolia, Byrsonima crassifolia, Crescentia cujete and Terminalia buceras showed a floristic neotropical affinity typical of floodable habitats. The structure of the community was characterized by an inverted "J" pattern for the distribution of individuals in the diametric and height classes. The high density of woody lianas, mainly of Dalbergia glabra (22 % of the recorded individuals) suggested an optimal state of conservation of the studied area. The floristic similarity analysis revealed that most of TFF's in Yucatan Peninsula were grouped with high similarity (55 %) independently of the adjacent UF's; however, TFF´s resulted similar among them (36 % similarity) when compared with TFF's from other regions (16 % similarity). According to the Mantel test, the similarity between sites is not influenced by its geographical proximity (r = -0.098, p>0.05). This emphasizes the need to generate conservation strategies for the TFF's of the Yucatan peninsula independently from other regions of Southeast Mexico. Our results suggest that the TFF of the studied region has a similar diversity from other TFF's in Southeast Mexico, a different floristic composition compared with adjacent UF's and a structure with an optimal conservation status, characteristics that indicate their importance for the regional flora conservation. Further ecological studies are needed to build a solid foundation for management and conservation for the TFF's. Rev. Biol. Trop. 65 (3): 868-880. Epub 2017 September 01.

show abstract

Vulnerability of the biota in riverine and seasonally flooded habitats to damming of Amazonian rivers

Latrubesse

d’Horta

Ribas

et al. 2020

Aquatic Conservation

View full text Add to dashboard Cite

The extent and intensity of impacts of multiple new dams in the Amazon basin on specific biological groups are potentially large, but still uncertain and need to be better understood. It is known that river disruption and regulation by dams may affect sediment supplies, river channel migration, floodplain dynamics, and, as a major adverse consequence, are likely to decrease or even suppress ecological connectivity among populations of aquatic organisms and organisms dependent upon seasonally flooded environments. This article complements our previous results by assessing the relationships between dams, our Dam Environmental Vulnerability Index (DEVI), and the biotic environments threatened by the effects of dams. Because of the cartographic representation of DEVI, it is a useful tool to compare the potential hydrophysical impacts of proposed dams in the Amazon basin with the spatial distribution of biological diversity. As the impact of Amazonian dams on the biota of both rivers and periodically flooded riparian environments is severe, DEVIs from different Amazonian tributary basins are contrasted with patterns of diversity and distribution of fish, flooded forest trees and bird species. There is a consistent relationship between higher DEVI values and the patterns of higher species richness and endemism in all three biological groups. An assessment of vulnerability at the scale of tributary basins, the assessment of biodiversity patterns related to DEVI, and the analysis of teleconnections at basin scale, demonstrate that recent construction of dams is affecting the biota of the Amazon basin. The evidence presented here predicts that, if currently planned dams are built without considering the balance between energy production and environmental conservation, their cumulative effects will increase drastically and represent a major threat to Amazonian biodiversity.

show abstract

Effects of flooding on trees in the semi-deciduous transition forests of the Araguaia floodplain, Brazil

Cited by 25 publications

References 42 publications

Stand dynamics of the drought-affected floodplain forests of Araguaia River, Brazilian Amazon

Stand dynamics of the drought-affected floodplain forests of Araguaia River, Brazilian Amazon

Diversidad, estructura y afinidades florísticas de un bosque temporalmente inundable de la Península de Yucatán

Vulnerability of the biota in riverine and seasonally flooded habitats to damming of Amazonian rivers

Contact Info

Product

Resources

About