Publications

Scientific Publications:

Porder, S. and G.E. Hilley (submitted). Linking chronosequences with the rest of the world - predicting soil phosphorus content in eroding landscapes. Biogeochemistry.

Hilley, G.E., C.P. Chamberlain, S.G. Moon, S. Porder and S.D. Willett (submitted). Competition between erosion and reaction kinetics in controlling silicate weathering rates. Earth and Planetary Science Letters.

Peltzer, D.A., D.A. Wardle, V.J. Allison, T.W. Baisden, R.D. Bardgett, O.A. Chadwick, L.M. Condron, R.L. Parfitt, S. Porder, S.J. Richardson, B.L. Turner, P.M. Vitousek, J. Walker and L.R. Walker (submitted). Understanding ecosystem retrogression. Ecology

Chaves, J. and S. Porder (submitted). Inorganic and organic nitrogen losses from a montane tropical forest in Las Alturas, Costa Rica. Biogeochemistry.

Hagaman, L.*, J. Chaves and S. Porder (submitted). The Impact of Land Use Practices on Nitrogen in Freshwater Streams, Guanacaste, Costa Rica. Pacific Science.

Lipson, D. *, R. Harrison, S. P. Hamburg and S. Porder (submitted). Carbon Stock Changes in Soil and Biomass from House Lot Development in King County, Washington. Urban Ecosystems.

Vitousek, P.M., S. Porder, B.Z. Houlton and O.A. Chadwick. (in press). Terrestrial phosphorus limitation: mechanisms, implications, and nitrogen-phosphorus interactions. Ecological Applications.

Porder, S. and O.A. Chadwick (2009). Climate and soil-age constraints on nutrient uplift and retention by plants. Ecology 90 (3): 623-636.

Palmer, M., M. Graves , T. Ladefoged , O.A. Chadwick , K. Duarte , S. Porder, P.M. Vitousek (2009). Sources of Nutrients to Windward Agricultural Systems in Pre-contact Hawai`i. Ecological Applications 19(6) 1444-1453.

Hilley, G.E. and S. Porder (2008). A framework for predicting global silicate weathering and CO2 drawdown rates over geologic time. Proceedings of the National Academy of Sciences 105(44) 16855-16859 (doi/10.1073/pnas.0801462105)

Bern, C.R., Porder, S. and A.R. Townsend. (2007).  Erosion and landscape development decouple strontium and sulfur in the transition to dominance by atmospheric inputs.  Geoderma 142: 274-284.

Porder, S., O.A. Chadwick, and G.E. Hilley. (2007).  Chemical weathering across a climate by time matrix in the Hawaiian Islands.  Earth and Planetary Science Letters 258: 414-427. [PDF]

Porder, S.,  P.M. Vitousek, O.A. Chadwick, C.P. Chamberlain and G.E. Hilley.  (2007). Uplift, erosion, and phosphorus limitation in terrestrial ecosystems.  Ecosystems 10: 158-170. [PDF]

Porder, S., D.B. Clark, and P.M. Vitousek (2006).  Persistence of rock-derived nutrients in the wet tropical forests of La Selva, Costa Rica. Ecology 87(3), 594-602. [PDF]

Porder, S., G.P. Asner., and P.M. Vitousek (2005).  Ground-based and remotely-sensed nutrient availability across a tropical landscape  Proceedings of the National Academy of Sciences 102 (31), 10909 – 10912. [PDF]

Porder, S., A. Paytan, and P.M. Vitousek (2005).  Erosion and landscape development affect plant nutrient status in the Hawaiian Islands.  Oecologia 142, 440 – 449. [PDF]

Vitousek, P; Chadwick, O; Matson, P; Allison, S; Derry, L; Kettley, L; Luers, A; Mecking, E; Monastra, V; Porder, S.  (2003)  Erosion and the rejuvenation of weathering-derived nutrient supply in an old tropical landscape.  Ecosystems 6(8) 762-772.

Porder, S., A. Paytan and E.A. Hadly (2003).  Mapping the origins of faunal assemblages using strontium isotopes.  Paleobiology 29(2) 197-204. . [PDF]

Policy Publications:

Chan, K.M.A., Higgins, P.A.T. and S. Porder (2005).  Protecting science from abuse requires a broader form of outreach.  Public Library of Science 3 (7) e218.

Porder, S., K.M.A. Chan and P.A.T. Higgins (2004).  Scientists must conquer the reluctance to speak out.  Nature 431, p1046.

Chan, KMA, S. Porder and P.A.T. Higgins (2004)  Concern is more than just 'ruffled feathers' - If a government abuses science to justify its policies, scientists have a duty to speak out.   Nature 428, p255.

Porder, S., K.M.A Chan and P.A.T Higgins (2004)  Science and policy – it’s an issue of trust.  San Francisco Chronicle April 4, 2004.

Porder, S. (2004) Science and policy - Uneasy partners.  Bioscience 54(1) 6-7. . [PDF]

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