Search Results - "Knops, J.M.H."

Observational and experimental evidence for the effect of altered precipitation on desert and steppe communities by Zuo, Xiaoan, Cheng, Huan, Zhao, Shenglong, Yue, Ping, Liu, Xinping, Wang, Shaokun, Liu, Lianxu, Xu, Chong, Luo, Wentao, Knops, J.M.H., Medina-Roldán, Eduardo

“…Changes in precipitation pattern are likely to affect the community structure and ecosystem function in drylands. Observational and experimental studies can…”
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Effects of plant species richness on invasion dynamics, disease outbreaks, insect abundances and diversity by Knops, J.M.H, Tilman, D, Haddad, N.M, Naeem, S, Mitchell, C.E, Haarstad, J, Ritchie, M.E, Howe, K.M, Reich, P.B, Siemann, E, Groth, J

“…Declining biodiversity represents one of the most dramatic and irreversible aspects of anthropogenic global change, yet the ecological implications of this…”
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Dynamics of soil nitrogen and carbon accumulation for 61 years after agricultural abandonment by Knops, J.M.H, Tilman, D

“…We used two independent methods to determine the dynamics of soil carbon and nitrogen following abandonment of agricultural fields on a Minnesota sand plain…”
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Biodiversity and ecosystem stability in a decade-long grassland experiment by Tilman, D, Reich, P.B, Knops, J.M.H

“…Human-driven ecosystem simplification has highlighted questions about how the number of species in an ecosystem influences its functioning. Although…”
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Change in dominance determines herbivore effects on plant biodiversity by Koerner, Sally E., Smith, Melinda D., Burkepile, Deron E., Hanan, Niall P., Avolio, Meghan L., Collins, Scott L., Knapp, Alan K., Lemoine, Nathan P., Forrestel, Elisabeth J., Eby, Stephanie, Thompson, Dave I., Aguado-Santacruz, Gerardo A., Anderson, John P., Anderson, T. Michael, Angassa, Ayana, Bagchi, Sumanta, Bakker, Elisabeth S., Bastin, Gary, Baur, Lauren E., Beard, Karen H., Beever, Erik A., Bohlen, Patrick J., Boughton, Elizabeth H., Canestro, Don, Cesa, Ariela, Chaneton, Enrique, Cheng, Jimin, D’Antonio, Carla M., Deleglise, Claire, Dembélé, Fadiala, Dorrough, Josh, Eldridge, David J., Fernandez-Going, Barbara, Fernández-Lugo, Silvia, Fraser, Lauchlan H., Freedman, Bill, García-Salgado, Gonzalo, Goheen, Jacob R., Guo, Liang, Husheer, Sean, Karembé, Moussa, Knops, Johannes M. H., Kraaij, Tineke, Kulmatiski, Andrew, Kytöviita, Minna-Maarit, Lezama, Felipe, Loucougaray, Gregory, Loydi, Alejandro, Milchunas, Dan G., Milton, Suzanne J., Morgan, John W., Moxham, Claire, Nehring, Kyle C., Olff, Han, Palmer, Todd M., Rebollo, Salvador, Riginos, Corinna, Risch, Anita C., Rueda, Marta, Sankaran, Mahesh, Sasaki, Takehiro, Schoenecker, Kathryn A., Schultz, Nick L., Schütz, Martin, Schwabe, Angelika, Siebert, Frances, Smit, Christian, Stahlheber, Karen A., Storm, Christian, Strong, Dustin J., Su, Jishuai, Tiruvaimozhi, Yadugiri V., Tyler, Claudia, Val, James, Vandegehuchte, Martijn L., Veblen, Kari E., Vermeire, Lance T., Ward, David, Wu, Jianshuang, Young, Truman P., Yu, Qiang, Zelikova, Tamara Jane

“…Herbivores alter plant biodiversity (species richness) in many of the world’s ecosystems, but the magnitude and the direction of herbivore effects on…”
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Nitrogen limitation constrains sustainability of ecosystem response to CO2 by Reich, P.B, Hobbie, S.E, Lee, T, Ellsworth, D.S, West, J.B, Tilman, D, Knops, J.M.H, Naeem, S, Trost, J

“…Enhanced plant biomass accumulation in response to elevated atmospheric CO2 concentration could dampen the future rate of increase in CO2 levels and associated…”
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Divergent effects of elevated CO2, N fertilization, and plant diversity on soil C and N dynamics in a grassland field experiment by Dijkstra, F.A, Hobbie, S.E, Reich, P.B, Knops, J.M.H

“…While increased atmospheric CO₂ concentrations, increased N deposition, and changes in plant diversity have all been shown to significantly alter soil carbon…”
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Cross-site comparison of herbivore impact on nitrogen availability in grasslands: the role of plant nitrogen concentration by Bakker, E. S., Knops, J. M. H., Milchunas, D. G, Ritchie, M. E., Olff, H.

“…Herbivores may influence the nitrogen (N) recycling rates and consequently increase or decrease the productivity of grasslands. Plant N concentration emerged…”
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Herbivore effects on plant and nitrogen dynamics in oak savanna by Ritchie, M.E. (Utah State University, Logan, UT.), Tilman, D, Knops, J.M.H

“…Herbivores can often control plant dynamics by mediating positive feedbacks in plant species' influence on nutrient cycling. In a 7-yr field experiment in a…”
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Impacts of management on decomposition and the litter-carbon balance in irrigated and rainfed no-till agricultural systems by Kochsiek, Amy E., Knops, Johannes M.H., Walters, Daniel T., Arkebauer, Timothy J.

“…The litter carbon (C) pool of a single litter cohort in an agroecosystem is the difference between net primary productivity and decomposition and comprises…”
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Herbivore impact on grassland plant diversity depens on habitat productivity and herbivore size by Bakker, E.S, Ritchie, M.E, Olff, H, Milchunas, D.G, Knops, J.M.H

“…Mammalian herbivores can have pronounced effects on plant diversity but are currently declining in many productive ecosystems through direct extirpation,…”
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Selective herbivory on a nitrogen fixing legume (Lathyrus venosus) influences productivity and ecosystem nitrogen pools in an oak savanna by Knops, J.M.H, Ritchie, M.E, Tilman, D

“…Herbivory is known to change the structure of vegetation, but the possible effects of herbivory on ecosystem nitrogen pools are not well documented. Here we…”
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On the relationship between nutrient use efficiency and fertility in forest ecosystems by Knops, J.M.H, Koenig, W.D, Nash, T.H. III

“…The concept of nutrient use efficiency is central in understanding ecosystem functioning because it is the step in which plants can influence the return of the…”
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Site fertility and leaf nutrients of sympatric evergreen and deciduous species of Quercus in central coastal California by Knops, J.M.H. (California Univ., Carmel Valley, CA (USA). Hastings Natural History Reservation), Koenig, W.D

“…Leaf and soil nutrient levels interact with and may each influence the other. We hypothesize that to the extent soil fertility influences the nutritional state…”
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Water use strategies of five sympatric species of Quercus in central coastal California by Knops, J.M.H. (Hastings Natural History Reservation, Carmel Valley, CA.), Koenig, W.D

“…We examined the late summer predawn and midday xylem water potential of 247 trees of five Quercus species at the Hastings Reservation in central coastal…”
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Flower abundance in a population of sky lupine (Lupinus nanus) over three years in central coastal California by Knops, J.M.H. (Arizona State University, Tempe, AZ.), Barthell, J.F

“…Three consecutive years of monitoring Lupinas nanus bloom in central California demonstrates over an 11 fold difference in peak inflorescence numbers among…”
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