Species richness increases the resilience of wetland plant communities in a tropical floodplain

2012 ◽  
Vol 38 (5) ◽  
pp. 592-598 ◽  
Author(s):  
PRISCILLA CARVALHO ◽  
SIDINEI MAGELA THOMAZ ◽  
JOSILAINE TAECO KOBAYASHI ◽  
LUIS MAURICIO BINI
Keyword(s):  
Species Richness ◽  
Plant Communities ◽  
Wetland Plant ◽  
Wetland Plant Communities ◽  
Tropical Floodplain

scholarly journals Diversity of plant assemblages dampens the variability of the growing season phenology in wetland landscapes

2020 ◽  
Author(s):  
Guillaume Rheault ◽  
Esther Lévesque ◽  
Raphaël Proulx
Keyword(s):  
Species Richness ◽  
Plant Communities ◽  
Growing Season ◽  
Edaphic Factors ◽  
Wetland Plant ◽  
Global Functioning ◽  
Growing Season Length ◽  
Wetland Plant Communities ◽  
Plant Assemblage ◽  
Plant Assemblages

Abstract Background: The functioning of ecosystems is highly variable through space and time. Climatic and edaphic factors are forcing ecological communities to converge, whereas the diversity of plant assemblages dampens these effects by allowing communities’ dynamics to diverge. This study evaluated whether the growing season phenology of wetland plant communities within landscapes is determined by the climatic/edaphic factors of contrasted regions, by the species richness of plant communities, or by the diversity of plant assemblages. From 2013 to 2016, we monitored the phenology and floristic composition of 118 wetland plant communities across five landscapes distributed along a gradient of edaphic and climatic conditions in the Province of Québec, Canada. Results: The growing season phenology of wetlands was driven by differences among plant assemblage within landscapes, and not by the species richness of each individual community (<1% of the explained variation). Variation in the growing season length of wetlands reflected the destabilizing effect of climatic and edaphic factors on green-up dates, which is opposed to the dampening effect of plant assemblage diversity on green-down dates. Conclusions: The latter dampening effect may be particularly important in the context of increasing anthropogenic activities, which are predicted to impair the ability of wetlands to adapt to fluctuating environmental conditions. Our findings suggest that stakeholders should not necessarily consider local monospecific plant communities of lower conservation value to the global functioning of wetland ecosystems.

scholarly journals Diversity of plant assemblages dampens the variability of the growing season phenology in wetland landscapes

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Guillaume Rheault ◽  
Esther Lévesque ◽  
Raphaël Proulx
Keyword(s):  
Species Richness ◽  
Plant Communities ◽  
Growing Season ◽  
Edaphic Factors ◽  
Wetland Plant ◽  
Global Functioning ◽  
Growing Season Length ◽  
Wetland Plant Communities ◽  
Plant Assemblage ◽  
Plant Assemblages

Abstract Background The functioning of ecosystems is highly variable through space and time. Climatic and edaphic factors are forcing ecological communities to converge, whereas the diversity of plant assemblages dampens these effects by allowing communities’ dynamics to diverge. This study evaluated whether the growing season phenology of wetland plant communities within landscapes is determined by the climatic/edaphic factors of contrasted regions, by the species richness of plant communities, or by the diversity of plant assemblages. From 2013 to 2016, we monitored the phenology and floristic composition of 118 wetland plant communities across five landscapes distributed along a gradient of edaphic and climatic conditions in the Province of Québec, Canada. Results The growing season phenology of wetlands was driven by differences among plant assemblage within landscapes, and not by the species richness of each individual community (< 1% of the explained variation). Variation in the growing season length of wetlands reflected the destabilizing effect of climatic and edaphic factors on green-up dates, which is opposed to the dampening effect of plant assemblage diversity on green-down dates. Conclusions The latter dampening effect may be particularly important in the context of increasing anthropogenic activities, which are predicted to impair the ability of wetlands to adapt to fluctuating environmental conditions. Our findings suggest that stakeholders should not necessarily consider local species-poor plant communities of lower conservation value to the global functioning of wetland ecosystems.

Does hydrological fluctuation alter impacts of species richness on biomass in wetland plant communities?

2015 ◽  
Vol 9 (4) ◽  
pp. 434-441 ◽  
Author(s):  
Fang-Li Luo ◽  
Xing-Xing Jiang ◽  
Hong-Li Li ◽  
Fei-Hai Yu
Keyword(s):  
Species Richness ◽  
Plant Communities ◽  
Wetland Plant ◽  
Wetland Plant Communities

Plant Communities of Tasmanian Wetlands

1983 ◽  
Vol 31 (5) ◽  
pp. 437 ◽  
Author(s):  
JB Kirkpatrick ◽  
CE Harwood
Keyword(s):  
Species Richness ◽  
Plant Communities ◽  
Wetland Vegetation ◽  
Freshwater Wetlands ◽  
Tidal Wetlands ◽  
Vegetation Types ◽  
Wetland Plant ◽  
Wetland Plant Communities ◽  
Floristic Variation

The macrophytic vegetation of Tasmanian wetlands consists of forest, scrub, marginal herbland, tussock sedgeland, sedgeland, reed swamp and aquatic herbland. More than 80 taxa dominate or codominate in at least one division of at least one of the 530 wetlands from which data were obtained. Communities dominated by each of 16 of these taxa occur in 10 or more wetlands and vary in mean richness from 4 to 18 species, richness increasing towards the margins of wetlands, with the area of wetland, and with decreasing salinity. A combination of salinity and permanence indices explains over one-third of the floristic variation between these communities; within freshwater wetlands, pH has more influence than the permanence index. The Tasmanian wetland flora is a subset of that of mainland Australia. Most Tasmanian wetland plant communities probably occur on the Australian mainland. Many of the wetland vegetation types discriminated on the mainland do not occur in Tasmanian non-tidal wetlands.

scholarly journals Relationship between Wetland Plant Communities and Environmental Factors in the Tumen River Basin in Northeast China

2019 ◽  
Vol 11 (6) ◽  
pp. 1559 ◽  
Author(s):  
Xiaojun Zheng ◽  
Jing Fu ◽  
Noelikanto Ramamonjisoa ◽  
Weihong Zhu ◽  
Chunguang He ◽  
...  
Keyword(s):  
Soil Properties ◽  
River Basin ◽  
Plant Species ◽  
Plant Communities ◽  
Northeast China ◽  
Floristic Composition ◽  
Available Phosphorus ◽  
Wetland Plant ◽  
Tumen River ◽  
Wetland Plant Communities

Understanding what controls wetland vegetation community composition is vital to conservation and biodiversity management. This study investigates the factors that affect wetland plant communities and distribution in the Tumen River Basin, Northeast China, an internationally important wetland for biodiversity conservation. We recorded floristic composition of herbaceous plants, soil properties, and microclimatic variables in 177, 1 × 1 m2 quadrats at 45 sites, located upstream (26), midstream (12), and downstream (7) of the Basin. We used TWINSPAN to define vegetation communities and canonical correspondence analysis (CCA) to examine the relationships between environmental and biological factors within the wetland plant communities. We recorded 100 plant species from 93 genera and 40 families in the upstream, 100 plant species from 57 genera and 31 families in the midstream, and 85 plant species from 76 genera and 38 families in the downstream. Higher species richness was recorded upstream of the River Basin. The plant communities and distribution were influenced by elevation, soil properties (total potassium, pH, and available phosphorus), and microclimate variables (surface temperature, precipitation, average temperature, sunshine hours, and relative humidity). More than any other factor, according to our results, elevation strongly influenced the structure of wetland plant communities. These findings support prevailing models describing the distribution of wetland plants along environmental gradients. The determination of the relationship between soil and plants is a useful way to better understand the ecosystem condition and can help manage the wetland ecosystem.

Diversity patterns of seasonal wetland plant communities mainly driven by rare terrestrial species

2016 ◽  
Vol 25 (8) ◽  
pp. 1569-1585 ◽  
Author(s):  
David C. Deane ◽  
Damien A. Fordham ◽  
Fangliang He ◽  
Corey J. A. Bradshaw
Keyword(s):  
Plant Communities ◽  
Wetland Plant ◽  
Terrestrial Species ◽  
Diversity Patterns ◽  
Seasonal Wetland ◽  
Wetland Plant Communities
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