@article {6110,
	title = {Nutrient identity modifies the destabilising effects of eutrophication in grasslands},
	journal = {Ecology Letters},
	volume = {259},
	year = {2022},
	pages = {754 - 765},
	abstract = {<p>Nutrient enrichment can simultaneously increase and destabilise plant biomass production, with co-limitation by multiple nutrients potentially intensifying these effects. Here, we test how factorial additions of nitrogen (N), phosphorus (P) and potassium with essential nutrients (K+) affect the stability (mean/standard deviation) of aboveground biomass in 34 grasslands over 7 years. Destabilisation with fertilisation was prevalent but was driven by single nutrients, not synergistic nutrient interactions. On average, N-based treatments increased mean biomass production by 21\&ndash;51\% but increased its standard deviation by 40\&ndash;68\% and so consistently reduced stability. Adding P increased interannual variability and reduced stability without altering mean biomass, while K+ had no general effects. Declines in stability were largest in the most nutrient-limited grasslands, or where nutrients reduced species richness or intensified species synchrony. We show that nutrients can differentially impact the stability of biomass production, with N and P in particular disproportionately increasing its interannual variability.</p>},
	keywords = {LTER-KNZ},
	issn = {1461-023X},
	doi = {10.1111/ele.v25.410.1111/ele.13946},
	url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/ele.13946},
	author = {Carroll, Oliver and Batzer, Evan and Bharath, Siddharth and Borer, Elizabeth T. and Campana, {\'\i}a and Esch, Ellen and Hautier, Yann and Ohlert, Timothy and Seabloom, Eric W. and Adler, Peter B. and Bakker, Jonathan D. and Biederman, Lori and Bugalho, Miguel N. and Caldeira, Maria and Chen, Qingqing and Davies, Kendi F. and Fay, Philip A. and Knops, Johannes M. H. and Kimberly J. Komatsu and Martina, Jason P. and McCann, Kevin S. and Moore, Joslin L. and Morgan, John W. and Muraina, Taofeek O. and Osborne, Brooke and Risch, Anita C. and Stevens, Carly and Wilfahrt, Peter A. and Yahdjian, Laura and MacDougall, Andrew S.},
	editor = {Pe{\~n}uelas, Josep}
}
@article {6111,
	title = {Species loss due to nutrient addition increases with spatial scale in global grasslands},
	journal = {Ecology Letters},
	volume = {24},
	year = {2021},
	pages = {2100 - 2112},
	abstract = {<p>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\&ndash;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\&ndash;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.</p>},
	keywords = {LTER-KNZ},
	doi = {10.1111/ele.v24.1010.1111/ele.13838},
	url = {https://onlinelibrary.wiley.com/doi/10.1111/ele.13838},
	author = {Seabloom, Eric W. and Batzer, Evan and Chase, Jonathan M. and Stanley Harpole, W. and Adler, Peter B. and Bagchi, Sumanta and Bakker, Jonathan D. and Barrio, Isabel C. and Biederman, Lori and Boughton, Elizabeth H. and Bugalho, Miguel N. and Caldeira, Maria C. and Catford, Jane A. and Daleo, Pedro and Eisenhauer, Nico and Eskelinen, Anu and Haider, Sylvia and Hallett, Lauren M. and J{\'o}nsd{\'o}ttir, Ingibj{\"o}rg Svala and Kimmel, Kaitlin and Kuhlman, Marirose and MacDougall, Andrew and Molina, Cecilia D. and Moore, Joslin L. and Morgan, John W. and Muthukrishnan, Ranjan and Ohlert, Timothy and Risch, Anita C. and Roscher, Christiane and Sch{\"u}tz, Martin. and Sonnier, Gr{\'e}gory. and Tognetti, Pedro M. and Virtanen, Risto and Wilfahrt, Peter A. and Borer, Elizabeth T.},
	editor = {Haddad, Nick}
}
