Increased community compositional dissimilarity alleviates species loss following nutrient enrichment at large spatial scales

Zhou, Xiaolong; Liu, Xudong; Zhang, Pengfei; Guo, Zhihao; Du, Guozhen

doi:10.1093/jpe/rty035

Cited by 14 publications

(9 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, addition of all nutrients in combination caused a mean loss of 0.9 species at the smallest scale (0.01 m 2 ) and 3.2 species at the largest scale (75 m 2 ). This is consistent with results from other studies that have manipulated nutrients (Lan et al, 2015), but others have shown either increases or decreases in z (and in some cases, β diversity, which is related to z) with nutrient addition (Chalcraft et al, 2008;Lan et al, 2015;Leps, 2014;Sandel & Corbin, 2012;Zhou et al, 2018). Likewise, we found no effect of herbivore exclusion on the scaling of diversity with area (z) whereas other studies have found positive, negative or neutral effects (Bakker et al, 2006;de Bello et al, 2007;Fernández-Lugo et al, 2011;Godo et al, 2017;Li et al, 2015).…”

Section: Discussionsupporting

confidence: 93%

Species loss due to nutrient addition increases with spatial scale in global grasslands

et al. 2021

View full text Add to dashboard Cite

The effects of altered nutrient supplies and herbivore density on species diversity vary with spatial scale, because coexistence mechanisms are scale dependent. This scale dependence may alter the shape of the species–area relationship (SAR), which can be described by changes in species richness (S) as a power function of the sample area (A): S = cAz, where c and z are constants. We analysed the effects of experimental manipulations of nutrient supply and herbivore density on species richness across a range of scales (0.01–75 m2) at 30 grasslands in 10 countries. We found that nutrient addition reduced the number of species that could co‐occur locally, indicated by the SAR intercepts (log c), but did not affect the SAR slopes (z). As a result, proportional species loss due to nutrient enrichment was largely unchanged across sampling scales, whereas total species loss increased over threefold across our range of sampling scales.

show abstract

Section: Discussionsupporting

confidence: 93%

Species loss due to nutrient addition increases with spatial scale in global grasslands

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The field experiment was set up in April 2011 and has been described elsewhere (Zhang, Zhou, Li, Guo, & Du, 2015; Zhou et al., 2017; Zhou, Liu, Zhang, Zhi, & Du, 2018). Large herbivores were excluded between March and October by fencing the experimental area.…”

Section: Methodsmentioning

confidence: 99%

“…Nitrogen was supplied at a rate of 15 g N m −2 year −1 , phosphorus at a rate of 8 g P m −2 year −1 , and nitrogen and phosphorus at a rate of 10 g N m −2 year −1 and 8 g P m −2 year −1 . While we acknowledge that plots within each nutrient area are not independent, previous studies have shown that there were no significant differences among them in term of plant species diversity, community biomass, and community composition at the start of the experiment (Zhou et al, 2018). N was applied as ammonium nitrate (NH 4 NO 3 ) and P as monocalcium phosphate (Ca(H 2 PO 4 ) 2 ) annually at the end of May.…”

Section: Experimental Designmentioning

confidence: 99%

Fast and furious: Early differences in growth rate drive short‐term plant dominance and exclusion under eutrophication

Zhang

Hefting

Soons

et al. 2020

Ecology and Evolution

Self Cite

View full text Add to dashboard Cite

show abstract

“…The field experiment was set up in April 2011 and has been described elsewhere (Zhang et al, 2015, Zhou et al, 2017, Zhou et al, 2018. Large herbivores were excluded between March and October by fencing the experimental area.…”

Section: Experimental Designmentioning

confidence: 99%

“…Nitrogen was supplied at a rate 15 gN m -2 y -1 , phosphorus at a rate of 8 gP m -2 y -1 , and nitrogen and phosphorus at a rate of 10 gN m -2 y -1 and 8 gP m -2 y -1 . While we acknowledge that plots within each nutrient area are not independent, previous studies have shown that there were no significant differences among them in term of plant species diversity, community biomass and community composition at the start of the experiment (Zhou et al, 2018). N was applied as ammonium nitrate (NH 4 NO 3 ) and P as monocalcium phosphate (Ca(H 2 PO 4 ) 2 ) annually at the end of May.…”

Section: Experimental Designmentioning

confidence: 99%

Fast and furious: Early differences in growth rate drive short-term plant dominance and exclusion under eutrophication

et al.

Self Cite

View full text Add to dashboard Cite

1. The reduction of plant diversity following eutrophication threatens many ecosystems worldwide. Yet, the mechanisms by which species are lost following nutrient enrichment are still not completely understood, nor are the details of when such mechanisms act during the growing season, which hampers understanding and the development of mitigation strategies. 2. Using a common garden competition experiment, we found that early-season differences in growth rates among five perennial grass species measured in monoculture predicted short-term competitive dominance in pairwise combinations and that this effect was stronger under a fertilisation treatment. 3. We also examined the role of early-season growth rate in determining the outcome of competition along an experimental nutrient gradient in an alpine meadow. Early differences in growth rate between species predicted short-term competitive dominance under both ambient and fertilized conditions and competitive exclusion under fertilized conditions. 4. The results of these two studies suggests that plant species growing faster during the early stage of the growing season gain a competitive advantage over species that initially grow more slowly, and that this advantage is magnified under fertilisation. This finding is consistent with the theory of asymmetric competition for light in which fastgrowing species can intercept incident light and hence outcompete and exclude slower-growing (and hence shorter) species. We predict that the current chronic nutrient inputs into many terrestrial ecosystems worldwide will reduce plant diversity and maintain low biodiversity state by continuously favouring fast-growing species. Biodiversity management strategies should focus on controlling nutrient inputs and reducing the growth of fast-growing species early in the season.

show abstract

Increased community compositional dissimilarity alleviates species loss following nutrient enrichment at large spatial scales

Cited by 14 publications

References 57 publications

Species loss due to nutrient addition increases with spatial scale in global grasslands

Species loss due to nutrient addition increases with spatial scale in global grasslands

Fast and furious: Early differences in growth rate drive short‐term plant dominance and exclusion under eutrophication

Fast and furious: Early differences in growth rate drive short-term plant dominance and exclusion under eutrophication

Contact Info

Product

Resources

About