scholarly journals Responses of nitrogen concentrations and pools to multiple environmental change drivers: A meta‐analysis across terrestrial ecosystems

2019 ◽  
Vol 28 (5) ◽  
pp. 690-724 ◽  
Author(s):  
Kai Yue ◽  
Yan Peng ◽  
Dario A. Fornara ◽  
Koenraad Van Meerbeek ◽  
Lars Vesterdal ◽  
...  
Keyword(s):  
Environmental Change ◽  
Meta Analysis ◽  
Terrestrial Ecosystems ◽  
Nitrogen Concentrations

scholarly journals Global meta-analysis shows pervasive phosphorus limitation of aboveground plant production in natural terrestrial ecosystems

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Enqing Hou ◽  
Yiqi Luo ◽  
Yuanwen Kuang ◽  
Chengrong Chen ◽  
Xiankai Lu ◽  
...  
Keyword(s):  
Meta Analysis ◽  
Terrestrial Ecosystems ◽  
Phosphorus Limitation ◽  
Plant Production

How is biodiversity changing in response to ecological restoration in terrestrial ecosystems? A meta-analysis in China

2019 ◽  
Vol 650 ◽  
pp. 1-9 ◽  
Author(s):  
Chunbo Huang ◽  
Zhixiang Zhou ◽  
Changhui Peng ◽  
Mingjun Teng ◽  
Pengcheng Wang
Keyword(s):  
Ecological Restoration ◽  
Meta Analysis ◽  
Terrestrial Ecosystems

scholarly journals Global signal of top-down control of terrestrial plant communities by herbivores

2018 ◽  
Vol 115 (24) ◽  
pp. 6237-6242 ◽  
Author(s):  
Shihong Jia ◽  
Xugao Wang ◽  
Zuoqiang Yuan ◽  
Fei Lin ◽  
Ji Ye ◽  
...  
Keyword(s):  
Plant Communities ◽  
Meta Analysis ◽  
Terrestrial Ecosystems ◽  
Global Scale ◽  
Basic Site ◽  
Plant Interactions ◽  
Top Down ◽  
Plant Abundance ◽  
Terrestrial Plant ◽  
Positive Effects

The theory of “top-down” ecological regulation predicts that herbivory suppresses plant abundance, biomass, and survival but increases diversity through the disproportionate consumption of dominant species, which inhibits competitive exclusion. To date, these outcomes have been clear in aquatic ecosystems but not on land. We explicate this discrepancy using a meta-analysis of experimental results from 123 native animal exclusions in natural terrestrial ecosystems (623 pairwise comparisons). Consistent with top-down predictions, we found that herbivores significantly reduced plant abundance, biomass, survival, and reproduction (allP< 0.01) and increased species evenness but not richness (P= 0.06 andP= 0.59, respectively). However, when examining patterns in the strength of top-down effects, with few exceptions, we were unable to detect significantly different effect sizes among biomes, based on local site characteristics (climate or productivity) or study characteristics (study duration or exclosure size). The positive effects on diversity were only significant in studies excluding large animals or located in temperate grasslands. The results demonstrate that top-down regulation by herbivores is a pervasive process shaping terrestrial plant communities at the global scale, but its strength is highly site specific and not predicted by basic site conditions. We suggest that including herbivore densities as a covariate in future exclosure studies will facilitate the discovery of unresolved macroecology trends in the strength of herbivore–plant interactions.

scholarly journals Extinction and dawn of the modern world in the Carnian (Late Triassic)

2020 ◽  
Vol 6 (38) ◽  
pp. eaba0099 ◽  
Author(s):  
Jacopo Dal Corso ◽  
Massimo Bernardi ◽  
Yadong Sun ◽  
Haijun Song ◽  
Leyla J. Seyfullah ◽  
...  
Keyword(s):  
Environmental Changes ◽  
Meta Analysis ◽  
Substantial Reduction ◽  
Terrestrial Ecosystems ◽  
Late Triassic ◽  
Modern World ◽  
Calcareous Nannofossils ◽  
Global Environmental ◽  
Fossil Data ◽  
Global Environmental Changes

The Carnian Pluvial Episode (Late Triassic) was a time of global environmental changes and possibly substantial coeval volcanism. The extent of the biological turnover in marine and terrestrial ecosystems is not well understood. Here, we present a meta-analysis of fossil data that suggests a substantial reduction in generic and species richness and the disappearance of 33% of marine genera. This crisis triggered major radiations. In the sea, the rise of the first scleractinian reefs and rock-forming calcareous nannofossils points to substantial changes in ocean chemistry. On land, there were major diversifications and originations of conifers, insects, dinosaurs, crocodiles, lizards, turtles, and mammals. Although there is uncertainty on the precise age of some of the recorded biological changes, these observations indicate that the Carnian Pluvial Episode was linked to a major extinction event and might have been the trigger of the spectacular radiation of many key groups that dominate modern ecosystems.

scholarly journals A meta-analysis of country-level studies on environmental change and migration

2020 ◽  
Vol 10 (10) ◽  
pp. 904-912 ◽  
Author(s):  
Roman Hoffmann ◽  
Anna Dimitrova ◽  
Raya Muttarak ◽  
Jesus Crespo Cuaresma ◽  
Jonas Peisker
Keyword(s):  
Environmental Change ◽  
Meta Analysis ◽  
Country Level ◽  
And Migration
Sign in / Sign up

Export Citation Format

Share Document