Search Results - "Soper, Fiona M."

Measuring nitrogen fixation by the acetylene reduction assay (ARA): is 3 the magic ratio? by Soper, Fiona M., Simon, Camille, Jauss, Verena

“…Despite some well-documented drawbacks, the acetylene reduction assay (ARA) remains one of the most widespread methods for measuring biological nitrogen (N 2 )…”
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A roadmap for sampling and scaling biological nitrogen fixation in terrestrial ecosystems by Soper, Fiona M., Taylor, Benton N., Winbourne, Joy B., Wong, Michelle Y., Dynarski, Katherine A., Reis, Carla R. G., Peoples, Mark B., Cleveland, Cory C., Reed, Sasha C., Menge, Duncan N. L., Perakis, Steven S.

“…Accurately quantifying rates and patterns of biological nitrogen fixation (BNF) in terrestrial ecosystems is essential to characterize ecological and…”
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Nitrogen trace gas fluxes from a semiarid subtropical savanna under woody legume encroachment by Soper, Fiona M., Boutton, Thomas W., Groffman, Peter M., Sparks, Jed P.

“…Savanna ecosystems are a major source of nitrogen (N) trace gases that influence air quality and climate. These systems are experiencing widespread…”
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Denitrification in a subtropical, semi-arid North American savanna: field measurements and intact soil core incubations by Soper, Fiona M, Groffman, Peter M, Sparks, Jed P

“…Information on denitrification (particularly N₂) losses from dry ecosystems is limited despite their large area. Here, we present the first direct…”
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Natural abundance (δ¹⁵N) indicates shifts in nitrogen relations of woody taxa along a savanna-woodland continental rainfall gradient by Soper, Fiona M., Richards, Anna E., Siddique, Ilyas, Aidar, Marcos P. M., Cook, Garry D., Hutley, Lindsay B., Robinson, Nicole, Schmidt, Susanne

“…Water and nitrogen (N) interact to influence soil N cycling and plant N acquisition. We studied indices of soil N availability and acquisition by woody plant…”
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Integrating edaphic gradients and community assembly concepts into the multidimensional root trait space by Dallstream, Caroline, Soper, Fiona M.

“…This article is a Commentary on Guilbeault‐Mayers & Laliberté (2024), 243: 636–647…”
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Three’s a crowd: triple-isotope analysis traces alternate plant nitrogen nutrition pathways by Soper, Fiona M.

“…This article is a Commentary on Bourgeois et al. 223: 1784–1794…”
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A framework for fine‐root trait syndromes: syndrome coexistence may support phosphorus partitioning in tropical forests by Dallstream, Caroline, Weemstra, Monique, Soper, Fiona M.

“…Fine roots balance multiple essential plant functions that ultimately fuel plant productivity. The coordination of root functional traits is multidimensional,…”
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Evolutionary history and root trait coordination predict nutrient strategy in tropical legume trees by Marcellus, Mia, Goud, Ellie M., Swartz, Natalie, Brown, Emily, Soper, Fiona M.

“…Summary Plants express diverse nutrient use and acquisition traits, but it is unclear how trait combinations at the species level are constrained by phylogeny,…”
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Non‐native mangroves support carbon storage, sediment carbon burial, and accretion of coastal ecosystems by Soper, Fiona M., MacKenzie, Richard A., Sharma, Sahadev, Cole, Thomas G., Litton, Creighton M., Sparks, Jed P.

“…Mangrove forests play an important role in climate change adaptation and mitigation by maintaining coastline elevations relative to sea level rise, protecting…”
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Patterns and controls of foliar nutrient stoichiometry and flexibility across United States forests by Dynarski, Katherine A., Soper, Fiona M., Reed, Sasha C., Wieder, William R., Cleveland, Cory C.

“…Plant element stoichiometry and stoichiometric flexibility strongly regulate ecosystem responses to global change. Here, we tested three potential mechanistic…”
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Soil carbon dioxide emissions from the Mojave desert: Isotopic evidence for a carbonate source by Soper, Fiona M., McCalley, Carmody K., Sparks, Kimberlee, Sparks, Jed P.

“…Arid soils represent a substantial carbonate pool and may participate in surface‐atmosphere CO2 exchange via a diel cycle of carbonate dissolution and…”
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Phosphorus limitation of early growth differs between nitrogen‐fixing and nonfixing dry tropical forest tree species by Toro, Laura, Pereira‐Arias, Damaris, Perez‐Aviles, Daniel, Vargas G., German, Soper, Fiona M., Gutknecht, Jessica, Powers, Jennifer S.

“…Summary Tropical forests are often characterized by low soil phosphorus (P) availability, suggesting that P limits plant performance. However, how seedlings…”
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Inconsistent recovery of nitrogen cycling after feral ungulate removal across three tropical island ecosystems by Soper, Fiona M., Sparks, Kimberlee S., Cole, Rebecca J., Giardina, Christian P., Litton, Creighton M., Sparks, Jed P.

“…Non-native ungulates (sheep, goats, and pigs) have significant negative impacts on ecosystem biodiversity, structure, and biogeochemical function throughout…”
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Nitrogen fixation and foliar nitrogen do not predict phosphorus acquisition strategies in tropical trees by Soper, Fiona M., Nasto, Megan K., Osborne, Brooke B., Cleveland, Cory C., Bielefeld Nardoto, Gabriela

“…The mechanistic links between nitrogen (N) availability and investment in plant phosphorus (P) acquisition have important implications for plant growth,…”
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Estimating Ecosystem Nitrogen Addition by a Leguminous Tree: A Mass Balance Approach Using a Woody Encroachment Chronosequence by Soper, Fiona M., Sparks, Jed P.

“…Difficulty in quantifying rates of biological N fixation (BNF), especially over long time scales, remains a major impediment to defining N budgets in many…”
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Tropical forests and global change: biogeochemical responses and opportunities for cross-site comparisons, an organized INSPIRE session at the 108 th Annual Meeting, Ecological Society of America, Portland, Oregon, USA, August 2023 by Cusack, Daniela F, Reed, Sasha, Andersen, Kelly M, Cinoğlu, Damla, Craig, Matthew E, Dietterich, Lee H, Hogan, J Aaron, Holm, Jennifer A, Nottingham, Andrew T, Ostertag, Rebecca, Soper, Fiona M, Wood, Tana E, Wong, Michelle Y

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Tropical forests and global change: biogeochemical responses and opportunities for cross‐site comparisons, an organized INSPIRE session at the 108th Annual Meeting, Ecological Society of America, Portland, Oregon, USA, August 2023 by Cusack, Daniela F., Reed, Sasha, Andersen, Kelly M., Cinoğlu, Damla, Craig, Matthew E., Dietterich, Lee H., Hogan, J. Aaron, Holm, Jennifer A., Nottingham, Andrew T., Ostertag, Rebecca, Soper, Fiona M., Wood, Tana E., Wong, Michelle Y.

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Investigating patterns of symbiotic nitrogen fixation during vegetation change from grassland to woodland using fine scale δ(15) N measurements by Soper, Fiona M, Boutton, Thomas W, Sparks, Jed P

“…Biological nitrogen fixation (BNF) in woody plants is often investigated using foliar measurements of δ(15) N and is of particular interest in ecosystems…”
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Leaf-cutter ants engineer large nitrous oxide hot spots in tropical forests by Soper, Fiona M, Sullivan, Benjamin W, Osborne, Brooke B, Shaw, Alanna N, Philippot, Laurent, Cleveland, Cory C

“…Though tropical forest ecosystems are among the largest natural sources of the potent greenhouse gas nitrous oxide (N O), the spatial distribution of emissions…”
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