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Ryan A. Sponseller
Researcher at Umeå University
Publications - 102
Citations - 5268
Ryan A. Sponseller is an academic researcher from Umeå University. The author has contributed to research in topics: Ecosystem & Riparian zone. The author has an hindex of 32, co-authored 86 publications receiving 4119 citations. Previous affiliations of Ryan A. Sponseller include Swedish University of Agricultural Sciences & Arizona State University.
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Journal ArticleDOI
Relationships between land use, spatial scale and stream macroinvertebrate communities
TL;DR: In this paper, the authors examined the influence of land cover patterns on in-stream physico-chemical features and macroinvertebrate assemblages in nine southern Appalachian headwater basins characterized by a mixture of land-use practices.
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Sources of and processes controlling CO2 emissions change with the size of streams and rivers
Erin R. Hotchkiss,Erin R. Hotchkiss,Robert O. Hall,Ryan A. Sponseller,David Butman,Jonatan Klaminder,Hjalmar Laudon,Martin Rosvall,Jan Karlsson +8 more
TL;DR: In this article, the proportion of CO2 emitted from streams and rivers to the atmosphere represents a substantial flux in the global carbon cycle (1-3), and the proportions of CO 2 emitted from stream and rivers that contribute to this flux are analyzed.
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Riparian zones increase regional species richness by harboring different, not more, species
John L. Sabo,Ryan A. Sponseller,Mark D. Dixon,Kris Gade,Tamara K. Harms,James B. Heffernan,Andrea J. Jani,Gabrielle L. Katz,Candan U. Soykan,James M. Watts,Jill R. Welter +10 more
TL;DR: In this paper, the authors used pub- lished data collected from seven continents and including taxa ranging from Antarctic soil invertebrates to tropical rain forest lianas and primates, and showed that riparian habitats do not harbor higher numbers of species, but rather support significantly different species pools altogether.
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Precipitation pulses and soil CO2flux in a Sonoran Desert ecosystem
TL;DR: In this paper, the influence of storm size and time between events on pulses of soil respiration were explored in an upper Sonoran Desert ecosystem, and the relationship between microbial activity and the amount and timing of rainfall has implications for the whole-system carbon (C) balance.
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Horizons in stream biogeochemistry: flowpaths to progress
TL;DR: In this article, a flowpath-specific technique for resolving the dynamics of both inorganic and organic materials and for comparing streams of different sizes and flow rates has been proposed to deal with multiple elements and fluctuating flows, including floods.