Plant distribution in freshwater wetlands of the Brazilian subtropical highland grasslands

Magalhães, Tatiana Lobato de; Bortoluzzi, Roseli Lopes da Costa; Mantovani, Adelar

doi:10.1007/s40415-015-0226-y

Cited by 8 publications

(7 citation statements)

References 17 publications

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“…In several wetland studies, Asteraceae, Cyperaceae and Poaceae arise as the most important families and emergent species stand out as the most abundant life form in wetlands. (Pott & Pott 2000, Rolon et al 2010, Magalhães et al 2016. Cyperaceae and Poaceae are among the richest aquatic monocotyledons plant families in Mexico (Lot et al 2013).…”

Section: Discussionmentioning

confidence: 99%

“…Given that temporary wetlands present a high anthropic degradation, but still have a high biodiversity (Pollock et al 1998, Balian et al 2008, Murray-Hudson et al 2012, with economically species (Pott & Pott 2000, Magalhães et al 2016, they should be a conservation priority. Hence, studies of landscape influence on species occurrence are a new challenge to create strategies for conservation of temporary freshwater wetlands.…”

Section: Discussionmentioning

confidence: 99%

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Temporary freshwater wetlands floristics in central Mexico highlands

Magalhães

Martínez

2018

Bot. Sci.

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Background: Mexico has a high diversity of aquatic and subaquatic plants that occur between 1,000 and 2,500 m of elevation, although a larger proportion of aquatic plants is concentrated at lower altitudes. Temporary wetlands harbor close to 73 % of the aquatic species in Mexico. These systems are under a strong anthropogenic pressure and suffer constant degradation.Questions: i) How many species grow in highland temporary wetlands? ii) Are they floristically similar? iii) Is there a latitudinal pattern of species richness?Studied groups: Charophyta, Pteridophyta, Angiosperms.Study site and years of study: Central Mexico (39 wetlands) from 2015 to 2016.Methods: We collected in 39 temporary wetlands for two years. We made a presence/absence list of species per locality, and calculated floristic similarities and correlations between wetlands. We include data characterizing life form, plant use, and conservation status.Results: We found 126 species belonging to 80 genera and 38 families. The richest families were Cyperaceae, Asteraceae, and Poaceae. As to genera, Eleocharis, Cyperus, and Juncus had more species. Species with the widest distributions were Persicaria mexicana, Marsilea mollis, Luziola fluitans, Heteranthera peduncularis, and Nymphoides fallax. We found five different life forms – all herbaceous, including 27 threatened species, 24 species with economic use, 48 endemic species, and 19 cosmopolitan species. In addition, we found 20 species recorded for the first time in some states included in our study, and two species of Eleocharis that might represent undescribed species. The richest wetland harbors 40 species, the poorest has only five. Wetlands were comparable to each other in species composition, and species richness increases towards the south.Conclusions: Temporary wetlands harbor a high floristic diversity and are similar to each other. Lower latitudes host higher numbers of species.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Temporary freshwater wetlands floristics in central Mexico highlands

Magalhães

Martínez

2018

Bot. Sci.

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“…) and wetlands (de Magalhães et al . ). The climate of the region ranges from Cfa (subtropical humid) to Cfb Köppen (humid temperate), with annual temperature of ~14°C, but freezing temperatures may occur from April to November.…”

Section: Methodsmentioning

confidence: 97%

Effects of wetland hydroperiod length on the functional structure of assemblages of Odonata

2017

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The role of hydroperiod as an environmental filter in structuring wetland assemblages is usually associated with trait selection in invertebrates. However, the effects of changes in the hydroperiod of non-permanent wetlands on invertebrate assemblages are still unclear, and few studies have assessed the functional structure of insect assemblages along the hydroperiod gradient. In this study, we investigated the effects of different hydroperiod lengths on the functional structure of Odonata assemblages in non-permanent wetlands (posteriorly classified as 'short-', 'medium-' and 'long-hydroperiod') in southern Brazil in 2013 and 2014. Biological traits related to life-history strategies in temporary waters were assessed according to seasonal patterns of occurrence of nymphal and adult stages of odonates. Following the rationale of an environmental filter produced by hydroperiod, we expected to find (1) higher functional diversity in longer hydroperiods and (2) trait-convergence patterns in odonate assemblages in shorter hydroperiods. Patterns of functional diversity were detected along the hydroperiod gradient. More specifically, higher functional dispersion was found in long-hydroperiod wetlands and trait-convergence patterns occurred in wetlands with shorter hydroperiods, supporting our general hypothesis. Odonate taxa with life-history traits associated with shorter life cycles predominated in medium-and short-hydroperiod wetlands. Our results thus suggest that more pronounced reductions in wetland hydroperiod length should produce odonate assemblages functionally more similar, and these results gain special importance as climate change scenarios indicate that the hydrology of wetlands will be affected by variation in rainfall regimes.

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“…A systematic floristic inventory was carried out around stagnant bodies rivers frequently used by local people using quadrats method. Thirty to fifty quadrats (1 m × 1 m) were placed at the edge of the water body (De Magalhaes et al 2016 ; EPA 2002 ). The number of quadrats varied depending on the size of the study site.…”

Section: Methodsmentioning

confidence: 99%

Floristic Diversity as an Indicator in Low and High Endemic Buruli Ulcer Areas in Côte d’Ivoire

et al. 2023

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Mycobacterium ulcerans is an environmental bacterium responsible for Buruli ulcer. This disease has a high frequency index in humid tropical regions, with a high incidence in Sub-Saharan Africa. The ecology and mode of transmission of this disease is not well established. Based on dilution effect hypothesis, acting as lowering disease transmission due to greater biodiversity, floristic inventory was carried out in the Health Districts of Daloa and Bouaké in Côte d’Ivoire. In each district, high and low endemic sites were investigated. A total of 169 plant species were inventoried for both low and high endemicity of Buruli ulcer sites in the districts. The Indval index revealed that 13 plant species were good indicators for Buruli ulcer highly endemic areas. The plants which correlate with high endemicity area were Leersia hexandra, Panicum laxum, Mimosa pudica, Paspalum distichum, Persicaria senegalensis, Calopogonium mucunoides, Echinochloa colona, Ipomoea sagittata, and Eichhornia crassipes. For low endemic sites, a strong relationship was recorded for 37 plants. The indices revealed low similarity between high and low endemicity sites. Low endemicity sites expressed the highest plant species diversity. These results suggest the hypothesis that floristic richness is more important in sites of low endemicity than in those of high endemicity. Moreover, we observed a co-occurrence of some plant species and Buruli ulcer endemicity. This finding may lead to the fact that it is important to care about the biodiversity to prevent outbreak of Buruli ulcer cases. Supplementary Information The online version contains supplementary material available at 10.1007/s41742-023-00520-2.

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Plant distribution in freshwater wetlands of the Brazilian subtropical highland grasslands

Cited by 8 publications

References 17 publications

Temporary freshwater wetlands floristics in central Mexico highlands

Temporary freshwater wetlands floristics in central Mexico highlands

Effects of wetland hydroperiod length on the functional structure of assemblages of Odonata

Floristic Diversity as an Indicator in Low and High Endemic Buruli Ulcer Areas in Côte d’Ivoire

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