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  1. No Access

    Article

    Exploring the Role of Cryptic Nitrogen Fixers in Terrestrial Ecosystems: A Frontier in Nitrogen Cycling Research

    Biological nitrogen fixation represents the largest natural flux of new nitrogen (N) into terrestrial ecosystems, providing a critical N source to support net primary productivity of both natural and agricultu...

    Cory C. Cleveland, Carla R. G. Reis, Steven S. Perakis, Katherine A. Dynarski… in Ecosystems (2022)

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    Article

    Riparian Soil Development Linked to Forest Succession Above and Below Dams Along the Elwha River, Washington, USA

    Riparian forest soils can be highly dynamic, due to frequent fluvial disturbance, erosion, and sediment deposition, but effects of dams on riparian soils are poorly understood. We examined soils along toposequ...

    Laura G. Perry, Patrick B. Shafroth, Steven S. Perakis in Ecosystems (2017)

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    Disturbance and Topography Shape Nitrogen Availability and δ15N over Long-Term Forest Succession

    Forest disturbance and long-term succession towards old-growth are thought to increase nitrogen (N) availability and N loss, which should increase soil δ15N values. We examined soil and foliar patterns in N and δ

    Steven S. Perakis, Alan J. Tepley, Jana E. Compton in Ecosystems (2015)

  4. Article

    Erratum to: N2-Fixing Red Alder Indirectly Accelerates Ecosystem Nitrogen Cycling

    Steven S. Perakis, Joselin J. Matkins, David E. Hibbs, Manuela Huso in Ecosystems (2014)

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    Article

    N2-Fixing Red Alder Indirectly Accelerates Ecosystem Nitrogen Cycling

    Symbiotic N2-fixing tree species can accelerate ecosystem N dynamics through decomposition feedbacks via both direct and indirect pathways. Direct pathways include the production of readily decomposed leaf litter...

    Steven S. Perakis, Joselin J. Matkins, David E. Hibbs in Ecosystems (2012)

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    Article

    Complementary Models of Tree Species–Soil Relationships in Old-Growth Temperate Forests

    Ecosystem-level studies identify plant–soil feedbacks as important controls on soil nutrient availability, particularly for nitrogen and phosphorus. Although site- and species-specific studies of tree species–...

    Alison Cross, Steven S. Perakis in Ecosystems (2011)

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    Article

    Ecosystem N Distribution and δ15N during a Century of Forest Regrowth after Agricultural Abandonment

    Stable isotope ratios of terrestrial ecosystem nitrogen (N) pools reflect internal processes and input–output balances. Disturbance generally increases N cycling and loss, yet few studies have examined ecosyst...

    Jana E. Compton, Toby D. Hooker, Steven S. Perakis in Ecosystems (2007)

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    Article

    Coupled Nitrogen and Calcium Cycles in Forests of the Oregon Coast Range

    Nitrogen (N) is a critical limiting nutrient that regulates plant productivity and the cycling of other essential elements in forests. We measured foliar and soil nutrients in 22 young Douglas-fir stands in th...

    Steven S. Perakis, Douglas A. Maguire, Thomas D. Bullen, Kermit Cromack… in Ecosystems (2006)