@article {6133, title = {Linking changes in species composition and biomass in a globally distributed grassland experiment}, journal = {Ecology Letters}, volume = {25}, year = {2022}, pages = {2699-2712}, keywords = {LTER-KNZ}, doi = {10.1111/ele.14126}, url = {https://onlinelibrary.wiley.com/doi/10.1111/ele.14126}, author = {Ladouceur, Emma and Blowes, Shane A. and Chase, Jonathan M. and Clark, Adam T. and Garbowski, Magda and Alberti, Juan and Arnillas, Carlos Alberto and Bakker, Jonathan D. and Barrio, Isabel C. and Bharath, Siddharth and Borer, Elizabeth T. and Brudvig, Lars A. and Cadotte, Marc W. and Chen, Qingqing and Collins, Scott L. and Dickman, Christopher R. and Donohue, Ian and Du, Guozhen and Ebeling, Anne and Eisenhauer, Nico and Fay, Philip A. and Hagenah, Nicole and Hautier, Yann and Jentsch, Anke and J{\'o}nsd{\'o}ttir, Ingibj{\"o}rg S. and Kimberly J. Komatsu and MacDougall, Andrew and Martina, Jason P. and Moore, Joslin L. and Morgan, John W. and Peri, Pablo L. and Power, ~A. and Ren, Zhengwei and Risch, Anita C. and Roscher, Christiane and Schuchardt, ~A. and Seabloom, Eric W. and Stevens, Carly J. and Veen, G.F. (Ciska) and Virtanen, Risto and Wardle, Glenda M. and Wilfahrt, Peter A. and Harpole, W. Stanley} } @article {6115, title = {Temporal rarity is a better predictor of local extinction risk than spatial rarity}, journal = {Ecology}, volume = {102}, year = {2021}, keywords = {LTER-KNZ}, doi = {10.1002/ecy.3504}, url = {https://esajournals.onlinelibrary.wiley.com/doi/abs/10.1002/ecy.3504}, author = {Wilfahrt, Peter A. and Asmus, Ashley L. and Seabloom, Eric W. and Henning, Jeremiah A. and Adler, Peter and Arnillas, Carlos A. and Bakker, Jonathan D. and Biederman, Lori and Brudvig, Lars A. and Cadotte, Marc and Daleo, Pedro and Eskelinen, Anu and Firn, Jennifer and Harpole, W. Stanley and Hautier, Yann and Kirkman, K.P. and Kimberly J. Komatsu and Laungani, Ramesh and MacDougall, Andrew and McCulley, Rebecca L. and Moore, Joslin L. and Morgan, John W. and Mortensen, Brent and Ochoa Hueso, Raul and Ohlert, Timothy and Power, Sally A. and Price, Jodi and Risch, Anita C. and Schuetz, Martin and Shoemaker, Lauren and Stevens, Carly and Strauss, Alexander T. and Tognetti, Pedro M. and Virtanen, Risto and Borer, Elizabeth T.} } @article {KNZ001945, title = {Belowground biomass response to nutrient enrichment depends on light limitation across globally distributed grasslands}, journal = {Ecosystems}, volume = {22}, year = {2019}, pages = {1466{\textendash}1477}, abstract = {
Anthropogenic activities are increasing nutrient inputs to ecosystems worldwide, with consequences for global carbon and nutrient cycles. Recent meta-analyses show that aboveground primary production is often co-limited by multiple nutrients; however, little is known about how root production responds to changes in nutrient availability. At twenty-nine grassland sites on four continents, we quantified shallow root biomass responses to nitrogen (N), phosphorus (P) and potassium plus micronutrient enrichment and compared below- and aboveground responses. We hypothesized that optimal allocation theory would predict context dependence in root biomass responses to nutrient enrichment, given variation among sites in the resources limiting to plant growth (specifically light versus nutrients). Consistent with the predictions of optimal allocation theory, the proportion of total biomass belowground declined with N or P addition, due to increased biomass aboveground (for N and P) and decreased biomass belowground (N, particularly in sites with low canopy light penetration). Absolute root biomass increased with N addition where light was abundant at the soil surface, but declined in sites where the grassland canopy intercepted a large proportion of incoming light. These results demonstrate that belowground responses to changes in resource supply can differ strongly from aboveground responses, which could significantly modify predictions of future rates of nutrient cycling and carbon sequestration. Our results also highlight how optimal allocation theory developed for individual plants may help predict belowground biomass responses to nutrient enrichment at the ecosystem scale across wide climatic and environmental gradients.
}, keywords = {LTER-KNZ, belowground biomass, Fertilization, nitrogen, Nutrient Network, optimal allocation, phosphorus roots}, doi = {10.1007/s10021-019-00350-4}, url = {https://link.springer.com/article/10.1007\%2Fs10021-019-00350-4}, author = {Cleland, Elsa E. and Lind, Eric M. and DeCrappeo, Nicole M. and DeLorenze, Elizabeth and Wilkins, Rachel Abbott and P. Adler and Bakker, Jonathan D. and Brown, Cynthia S. and Davies, Kendi F. and Esch, Ellen and Firn, Jennifer and Gressard, Scott and Gruner, Daniel S. and Hagenah, Nicole and Harpole, W. Stanley and Hautier, Yann and Hobbie, Sarah E. and Hofmockel, Kirsten S. and Kirkman, Kevin and Knops, Johannes and Kopp, Christopher W. and Kimberly J. La Pierre and MacDougall, Andrew and McCulley, Rebecca L. and Melbourne, Brett A. and Joslin L. Moore and Prober, Suzanne M. and Riggs, Charlotte and Risch, Anita C. and Schuetz, Martin and Stevens, Carly and Wragg, Peter D. and Wright, Justin and E.T. Borer and Seabloom, Eric W.} } @article {KNZ001894, title = {Local loss and spatial homogenization of plant diversity reduce ecosystem multifunctionality}, journal = {Nature Ecology \& Evolution}, volume = {2}, year = {2018}, pages = {50-56}, abstract = {Biodiversity is declining in many local communities while also becoming increasingly homogenized across space. Experiments show that local plant species loss reduces ecosystem functioning and services, but the role of spatial homogenization of community composition and the potential interaction between diversity at different scales in maintaining ecosystem functioning remains unclear, especially when many functions are considered (ecosystem multifunctionality). We present an analysis of eight ecosystem functions measured in 65 grasslands worldwide. We find that more diverse grasslands\—those with both species-rich local communities (α-diversity) and large compositional differences among localities (β-diversity)\—had higher levels of multifunctionality. Moreover, α- and β-diversity synergistically affected multifunctionality, with higher levels of diversity at one scale amplifying the contribution to ecological functions at the other scale. The identity of species influencing ecosystem functioning differed among functions and across local communities, explaining why more diverse grasslands maintained greater functionality when more functions and localities were considered. These results were robust to variation in environmental drivers. Our findings reveal that plant diversity, at both local and landscape scales, contributes to the maintenance of multiple ecosystem services provided by grasslands. Preserving ecosystem functioning therefore requires conservation of biodiversity both within and among ecological communities.
}, keywords = {LTER-KNZ}, doi = {10.1038/s41559-017-0395-0}, url = {http://www.nature.com/articles/s41559-017-0395-0}, author = {Hautier, Yann and Isbell, Forest and E.T. Borer and Seabloom, Eric W. and Harpole, W. Stanley and Lind, Eric M. and MacDougall, Andrew S. and Stevens, Carly J. and P. Adler and J. Alberti and Bakker, Jonathan D. and Brudvig, Lars A. and Buckley, Yvonne M. and Cadotte, Marc and Caldeira, Maria C. and Chaneton, Enrique J. and Chu, Chengjin and Daleo, Pedro and Dickman, Christopher R. and Dwyer, John M. and Eskelinen, Anu and Fay, Philip A. and Firn, Jennifer and Hagenah, Nicole and Hillebrand, Helmut and Iribarne, Oscar and Kirkman, Kevin P. and Knops, Johannes M. H. and Kimberly J. La Pierre and McCulley, Rebecca L. and J.W. Morgan and P{\"a}rtel, Meelis and Pascual, Jesus and Price, Jodi N. and Prober, Suzanne M. and Risch, Anita C. and Sankaran, Mahesh and Schuetz, Martin and Standish, Rachel J. and Virtanen, Risto and Wardle, Glenda M. and Yahdjian, Laura and Hector, Andy} } @article {KNZ001882, title = {Spatial heterogeneity in species composition constrains plant community responses to herbivory and fertilisation}, journal = {Ecology Letters}, volume = {21}, year = {2018}, pages = {1364 -1371}, abstract = {Environmental change can result in substantial shifts in community composition. The associated immigration and extinction events are likely constrained by the spatial distribution of species. Still, studies on environmental change typically quantify biotic responses at single spatial (time series within a single plot) or temporal (spatial beta diversity at single time points) scales, ignoring their potential interdependence. Here, we use data from a global network of grassland experiments to determine how turnover responses to two major forms of environmental change \– fertilisation and herbivore loss \– are affected by species pool size and spatial compositional heterogeneity. Fertilisation led to higher rates of local extinction, whereas turnover in herbivore exclusion plots was driven by species replacement. Overall, sites with more spatially heterogeneous composition showed significantly higher rates of annual turnover, independent of species pool size and treatment. Taking into account spatial biodiversity aspects will therefore improve our understanding of consequences of global and anthropogenic change on community dynamics.
}, keywords = {LTER-KNZ}, doi = {10.1111/ele.13102}, url = {https://onlinelibrary.wiley.com/doi/pdf/10.1111/ele.13102}, author = {Hodapp, Dorothee and E.T. Borer and Harpole, W. Stanley and Lind, Eric M. and Seabloom, Eric W. and P. Adler and J. Alberti and Arnillas, Carlos A. and J.D. Bakker and L.A. Biederman and Cadotte, Marc and Cleland, Elsa E. and Scott. L. Collins and Fay, Philip A. and Firn, Jennifer and Hagenah, Nicole and Hautier, Yann and Iribarne, Oscar and Knops, Johannes M. H. and McCulley, Rebecca L. and MacDougall, Andrew and Joslin L. Moore and J.W. Morgan and Mortensen, Brent and Kimberly J. La Pierre and Risch, Anita C. and Sch{\"u}tz, Martin and Peri, Pablo and Stevens, Carly J. and Wright, Justin and Hillebrand, Helmut}, editor = {Gurevitch, Jessica} } @article {KNZ001893, title = {Out of the shadows: multiple nutrient limitations drive relationships among biomass, light and plant diversity}, journal = {Functional Ecology}, volume = {31}, year = {2017}, pages = {1839-1846}, abstract = {