Linking functional diversity, trait composition, invasion, and environmental drivers in boreal wetland plant assemblages

2021 ◽  
Vol 32 (5) ◽  
Author(s):  
Brandon E. Allen ◽  
Ermias T. Azeria ◽  
Jason T. Bried
Keyword(s):  
Functional Diversity ◽  
Environmental Drivers ◽  
Wetland Plant ◽  
Plant Assemblages ◽  
Boreal Wetland

Interplay of water quality and vegetation in restored wetland plant assemblages from an agricultural landscape

2017 ◽  
Vol 108 ◽  
pp. 255-262 ◽  
Author(s):  
Cory M. Shoemaker ◽  
Gary N. Ervin ◽  
Evelyn W. DiOrio
Keyword(s):  
Water Quality ◽  
Agricultural Landscape ◽  
Wetland Plant ◽  
Restored Wetland ◽  
Plant Assemblages

scholarly journals Environmental drivers of fish community functional diversity in arid mangroves compared to a tropical estuary

2020 ◽  
Vol 46 (4) ◽  
pp. 193-210
Author(s):  
Juan Ángel Payan-Alcacio
Keyword(s):  
Functional Diversity ◽  
Fish Community ◽  
Environmental Drivers ◽  
Tropical Estuary

Geographical patterns and environmental drivers of functional diversity and trait space of amphibians of Europe

2019 ◽  
Vol 35 (1) ◽  
pp. 123-138
Author(s):  
Mariana A. Tsianou ◽  
Athanasios S. Kallimanis
Keyword(s):  
Functional Diversity ◽  
Environmental Drivers ◽  
Geographical Patterns ◽  
Trait Space

scholarly journals Do forest over- and understory respond to the same environmental variables when viewed at the taxonomic and trait level?

2021 ◽  
Author(s):  
Kenny Helsen ◽  
Yeng-Chen Shen ◽  
Tsung-Yi Lin ◽  
Chien-Fan Chen ◽  
Chu-Mei Huang ◽  
...  
Keyword(s):  
Functional Diversity ◽  
Environmental Filtering ◽  
Soil Nutrient ◽  
Woody Species ◽  
Elevational Gradient ◽  
Functional Trait ◽  
Environmental Drivers ◽  
Small Scale ◽  
Diversity Patterns ◽  
Soil Variation

While the relative importance of climate filtering is known to be higher for woody species assemblages than herbaceous assemblage, it remains largely unexplored whether this pattern is also reflected between the woody overstory and herbaceous understory of forests. While climatic variation will be more buffered by the tree layer, the understory might also respond more to small-scale soil variation, next to experiencing additional environmental filtering due to the overstory's effects on light and litter quality. For (sub)tropical forests, the understory often contains a high proportion of fern and lycophyte species, for which environmental filtering is even less well understood. We explored the proportional importance of climate proxies and soil variation on the species, functional trait and (functional) diversity patterns of both the forest overstory and fern and lycophyte understory along an elevational gradient from 850 to 2100 m a.s.l. in northern Taiwan. We selected nine functional traits expected to respond to soil nutrient or climatic stress for this study and furthermore verified whether they were positively related across vegetation layers, as expected when driven by similar environmental drivers. We found that climate was a proportionally more important predictor than soil for the species composition of both vegetation layers and trait composition of the understory. The stronger than expected proportional effect of climate for the understory was likely due to fern and lycophytes' higher vulnerability to drought, while the high importance of soil for the overstory seemed driven by deciduous species. The environmental drivers affected different response traits in both vegetation layers, however, which together with additional overstory effects on understory traits, resulted in a strong disconnection of community-level trait values across layers. Interestingly, species and functional diversity patterns could be almost exclusively explained by climate effects for both vegetational layers, with the exception of understory species richness. This study illustrates that environmental filtering can differentially affect species, trait and diversity patterns and can be highly divergent for forest overstory and understory vegetation, and should consequently not be extrapolated across vegetation layers or between composition and diversity patterns.

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 Changes in taxonomic and functional diversity of plants in a chronosequence of Eucalyptus grandis plantations

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Pamela E. Pairo ◽  
Estela E. Rodriguez ◽  
M. Isabel Bellocq ◽  
Pablo G. Aceñolaza
Keyword(s):  
Species Richness ◽  
Leaf Litter ◽  
Plant Species ◽  
Functional Diversity ◽  
Soil Ph ◽  
Management Practices ◽  
Environmental Changes ◽  
Canopy Cover ◽  
Environmental Drivers ◽  
Natural Grasslands

AbstractTree plantations have become one of the fastest-growing land uses and their impact on biodiversity was evaluated mainly at the taxonomic level. The aim of this study was to analyze environmental changes after the Eucalyptus plantation in an area originally covered by natural grasslands, taking into account the alpha and beta (taxonomic and functional) diversity of plant communities. We selected nine plantation ages, along a 12 years chronosequence, with three replicates per age and three protected grasslands as the original situation. At each replicate, we established three plots to measure plant species cover, diversity and environmental variables. Results showed that species richness, and all diversity indices, significantly declined with increasing plantation age. Canopy cover, soil pH, and leaf litter were the environmental drivers that drove the decrease in taxonomic and functional diversity of plants through the forest chronosequence. Based on the path analyses results, canopy cover had an indirect effect on plant functional diversity, mediated by leaf litter depth, soil pH, and plant species richness. The high dispersal potential, annual, barochorous, and zoochorous plant species were the functional traits more affected by the eucalypt plantations. We recommend two management practices: reducing forest densities to allow higher light input to the understory and, due to the fact that leaf litter was negatively associated with all diversity facets, we recommend reducing their accumulation or generate heterogeneity in its distribution to enhance biodiversity.

scholarly journals Exotic species invasions undermine regional functional diversity of freshwater fish

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Marco Milardi ◽  
Anna Gavioli ◽  
Janne Soininen ◽  
Giuseppe Castaldelli
Keyword(s):  
Exotic Species ◽  
Functional Diversity ◽  
Current Knowledge ◽  
Biodiversity Loss ◽  
Taxonomic Diversity ◽  
Environmental Drivers ◽  
Ecological Traits ◽  
Species Invasions ◽  
Temporal And Spatial ◽  
Fine Resolution

AbstractExotic species invasions often result in native biodiversity loss, i.e. a lower taxonomic diversity, but current knowledge on invasions effects underlined a potential increase of functional diversity. We thus explored the connections between functional diversity and exotic species invasions, while accounting for their environmental drivers, using a fine-resolution large dataset of Mediterranean stream fish communities. While functional diversity of native and exotic species responded similarly to most environmental constraints, we found significant differences in the effects of altitude and in the different ranking of constraints. These differences suggest that invasion dynamics could play a role in overriding some major environmental drivers. Our results also showed that a lower diversity of ecological traits in communities (about half of less disturbed communities) corresponded to a high invasion degree, and that the exotic component of communities had typically less diverse ecological traits than the native one, even when accounting for stream order and species richness. Overall, our results suggest that possible outcomes of severe exotic species invasions could include a reduced functional diversity of invaded communities, but analyzing data with finer ecological, temporal and spatial resolutions would be needed to pinpoint the causal relationship between invasions and functional diversity.

Environmental drivers of taxonomic and functional diversity of ant communities in a tropical mountain

2020 ◽  
Vol 13 (4) ◽  
pp. 393-403 ◽  
Author(s):  
Flávio Siqueira de Castro ◽  
Pedro Giovâni Da Silva ◽  
Ricardo Solar ◽  
Geraldo Wilson Fernandes ◽  
Frederico de Siqueira Neves
Keyword(s):  
Functional Diversity ◽  
Environmental Drivers ◽  
Ant Communities ◽  
Tropical Mountain

Invasibility of boreal wetland plant communities

2014 ◽  
Vol 25 (4) ◽  
pp. 1078-1089 ◽  
Author(s):  
Lotta Ström ◽  
Roland Jansson ◽  
Christer Nilsson
Keyword(s):  
Plant Communities ◽  
Wetland Plant ◽  
Wetland Plant Communities ◽  
Boreal Wetland
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