Zooplankton functional diversity as an indicator of a long‐term aquatic restoration in an Amazonian lake

2021 ◽  
Author(s):  
Iollanda I. P. Josué ◽  
Elder O. Sodré ◽  
Rayanne B. Setubal ◽  
Simone J. Cardoso ◽  
Fabio Roland ◽  
...  
Keyword(s):  
Functional Diversity ◽  
Amazonian Lake

scholarly journals Long‐term trends in the phylogenetic and functional diversity of Anatidae in South China coastal wetlands

2021 ◽  
Author(s):  
Xianli Che ◽  
Min Zhang ◽  
Xuebing Zhao ◽  
Qiang Zhang ◽  
Yanyan Zhao ◽  
...  
Keyword(s):  
Functional Diversity ◽  
South China ◽  
Coastal Wetlands ◽  
Long Term Trends

scholarly journals Long-term data reveal unimodal responses of ground beetle abundance to precipitation and land use but no changes in taxonomic and functional diversity

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Petr Zajicek ◽  
Ellen A. R. Welti ◽  
Nathan J. Baker ◽  
Kathrin Januschke ◽  
Oliver Brauner ◽  
...  
Keyword(s):  
Land Use ◽  
Functional Diversity ◽  
Spatial Scales ◽  
Ground Beetle ◽  
Temporal Trends ◽  
Ground Beetles ◽  
Community Change ◽  
Ecological Communities ◽  
Activity Density

AbstractWhile much of global biodiversity is undoubtedly under threat, the responses of ecological communities to changing climate, land use intensification, and long-term changes in both taxonomic and functional diversity over time, has still not been fully explored for many taxonomic groups, especially invertebrates. We compiled time series of ground beetles covering the past two decades from 40 sites located in five regions across Germany. We calculated site-based trends for 21 community metrics representing taxonomic and functional diversity of ground beetles, activity density (a proxy for abundance), and activity densities of functional groups. We assessed both overall and regional temporal trends and the influence of the global change drivers of temperature, precipitation, and land use on ground beetle communities. While we did not detect overall temporal changes in ground beetle taxonomic and functional diversity, taxonomic turnover changed within two regions, illustrating that community change at the local scale does not always correspond to patterns at broader spatial scales. Additionally, ground beetle activity density had a unimodal response to both annual precipitation and land use. Limited temporal change in ground beetle communities may indicate a shifting baseline, where community degradation was reached prior to the start of our observation in 1999. In addition, nonlinear responses of animal communities to environmental change present a challenge when quantifying temporal trends.

scholarly journals Functional diversity of phytoplankton highlights long-term gradual regime shift in the middle section of the Danube River due to global warming, human impacts and oligotrophication

2018 ◽  
Vol 63 (5) ◽  
pp. 456-472 ◽  
Author(s):  
András Abonyi ◽  
Éva Ács ◽  
András Hidas ◽  
István Grigorszky ◽  
Gábor Várbíró ◽  
...  
Keyword(s):  
Global Warming ◽  
Functional Diversity ◽  
Regime Shift ◽  
Human Impacts ◽  
Danube River ◽  
Middle Section ◽  
The Danube River

scholarly journals Crop Rotation Compared with Continuous Rye Cropping for Weed Biodiversity and Rye Yield. A Case Study of a Long-Term Experiment in Poland

Agronomy ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 644 ◽  
Author(s):  
Jastrzębska ◽  
Kostrzewska ◽  
Marks ◽  
Jastrzębski ◽  
Treder ◽  
...  
Keyword(s):  
Crop Rotation ◽  
Functional Diversity ◽  
Plant Protection ◽  
Winter Rye ◽  
Herbicide Application ◽  
Weed Species ◽  
Long Term Experiment ◽  
Effect On Yield

In recent years, sustainable agriculture has revitalized interest in crop rotations and their effects on crop performance and agroecosystem biodiversity, including weeds. This article used winter rye as an example and focused on the crop rotation (CR) impact on species, taxonomic and functional diversity of weed communities and analysed the contribution of crop rotation to protecting yield and regulating weed abundance. Long-term continuous rye cropping (CC) provided a background for comparison. Two variants of plant protection were also adopted: herbicide application (H+) and no plant protection (H−). The data from the 10th, 30th and 50th years of the experiment were included in the analysis. Diversified crop rotation with no chemical protection resulted in a satisfactory rye yield and reduced weed abundance—especially problem species—without a decrease in weed species diversity or functional diversity. When rye was grown under crop rotation, the herbicide application had no effect on yield protection, but it was harmful to weed biodiversity. The rye yield correlated negatively with weed biomass, but did not show a link with weed biodiversity. Continuation of long-term experiments as a research basis for contemporary and future scientific challenges is necessary.

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