John Wesley Powell Center for Analysis and Synthesis

Publications

Filter Total Items: 164
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Year Published: 2018

Recreation economics to inform migratory species conservation: Case study of the northern pintail

Quantification of the economic value provided by migratory species can aid in targeting management efforts and funding to locations yielding the greatest benefits to society and species conservation. Here we illustrate a key step in this process by estimating hunting and birding values of the northern pintail (Anas acuta) within primary breeding...

Mattsson, Brady J.; Dubovsky, James A.; Thogmartin, Wayne E.; Bagstad, Kenneth J.; Goldstein, Joshua H.; Loomis, John B.; Diffendorfer, James E.; Semmens, Darius J.; Wiederholt, Ruscena; Lopez-Hoffman, Laura

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Year Published: 2018

Networking our science to characterize the state, vulnerabilities, and management opportunities of soil organic matter

Soil organic matter (SOM) supports the Earth's ability to sustain terrestrial ecosystems, provide food and fiber, and retains the largest pool of actively cycling carbon. Over 75% of the soil organic carbon (SOC) in the top meter of soil is directly affected by human land use. Large land areas have lost SOC as a result of land use practices, yet...

Harden, Jennifer W.; Hugelius, Gustaf; Ahlström, Anders; Blankinship, Joseph C.; Bond-Lamberty, Ben; Lawrence, Corey; Loisel, Julie; Malhotra, Avni; Jackson, Robert B.; Ogle, Stephen M.; Phillips, Claire; Ryals, Rebecca; Todd-Brown, Katherine; Vargas, Rodrigo; Vergara, Sintana E.; Cotrufo, M. Francesca; Keiluweit, Marco; Heckman, Katherine; Crow, Susan E.; Silver, Whendee L.; DeLonge, Marcia; Nave, Lucas E.
Harden JW, Hugelius G, Ahlström A, et al. Networking our science to characterize the state, vulnerabilities, and management opportunities of soil organic matter. Glob Change Biol. 2017;00:1–14. https://doi.org/10.1111/gcb.13896

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Year Published: 2018

Improving predictions of tropical forest response to climate change through integration of field studies and ecosystem modeling

Tropical forests play a critical role in carbon and water cycles at a global scale. Rapid climate change is anticipated in tropical regions over the coming decades and, under a warmer and drier climate, tropical forests are likely to be net sources of carbon rather than sinks. However, our understanding of tropical forest response and feedback to...

Feng, Xiaohui; Uriarte, María; González, Grizelle; Reed, Sasha C.; Thompson, Jill; Zimmerman, Jess K.; Murphy, Lora
Feng, X., Uriarte, M., Gonzalez, G., Reed, S., Thompson, J., Zimmerman, J.K., and Murphy, L., 2017, Improving predictions of tropical forest response to climate change through integration of field studies and ecosystem modeling: Global Change Biology, v. (online), http://dx.doi.org/ 10.1111/gcb.13863.

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Year Published: 2017

Operationalizing the telecoupling framework for migratory species using the spatial subsidies approach to examine ecosystem services provided by Mexican free-tailed bats

Drivers of environmental change in one location can have profound effects on ecosystem services and human well-being in distant locations, often across international borders. The telecoupling provides a conceptual framework for describing these interactions—for example, locations can be defined as sending areas (sources of flows of ecosystem...

Lopez Hoffman, Laura ; Diffendorfer, James E.; Widerholt, Ruscena ; Thogmartin, Wayne E.; McCraken, Gary; Medellin, Rodrigo; Bagstad, Kenneth J.; Russell, Amy; Semmens, Darius J.

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Year Published: 2017

Reviews and syntheses: Field data to benchmark the carbon cycle models for tropical forests

For more accurate projections of both the global carbon (C) cycle and the changing climate, a critical current need is to improve the representation of tropical forests in Earth system models. Tropical forests exchange more C, energy, and water with the atmosphere than any other class of land ecosystems. Further, tropical-forest C cycling is...

Clark, Deborah A.; Asao, Shinichi; Fisher, Rosie A.; Reed, Sasha C.; Reich, Peter B.; Ryan, Michael G.; Wood, Tana E.; Yang, Xiaojuan
Clark, Deborah A., , Shinichi Asao, Rosie Fisher, Sasha Reed, Peter B. Reich, Michael G. Ryan, Tana E. Wood, and Xiaojuan Yang. 2017. Reviews and syntheses: Field data to benchmark the carbon cycle models for tropical forests. Biogeosciences, 14, 4663-4690, 2017 https://doi.org/10.5194/bg-14-4663-2017 Volume 14, issue 20

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Year Published: 2017

Future soil moisture and temperature extremes imply expanding suitability for rainfed agriculture in temperate drylands

The distribution of rainfed agriculture is expected to respond to climate change and human population growth. However, conditions that support rainfed agriculture are driven by interactions among climate, including climate extremes, and soil moisture availability that have not been well defined. In the temperate regions that support much of the...

Bradford, John B.; Schlaepfer, Daniel R.; Lauenroth, William K.; Yackulic, Charles B.; Duniway, Michael C.; Hall, Sonia A.; Jia, Gensuo; Jamiyansharav, Khishigbayar; Munson, Seth M.; Wilson, Scott D.; Tietjen, Britta
Bradford, J.B., Schlaepfer, D.R., Lauenroth, W.K., Yackulic, C.B., Duniway, M., Hall, S., Jia, G., Jamiyansharav, K., Munson, S.M., Wilson, S.D., and Tietjen, B., 2017, Future soil moisture and temperature extremes imply expanding suitability for rainfed agriculture in temperate drylands: Scientific Reports, v. (online), http://dx.doi.org/10.1038/s41598-017-13165-x.

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Year Published: 2017

Flow and residence times of dynamic river bank storage and sinuosity-driven hyporheic exchange

Hydrologic exchange fluxes (HEFs) vary significantly along river corridors due to spatiotemporal changes in discharge and geomorphology. This variability results in the emergence of biogeochemical hot-spots and hot-moments that ultimately control solute and energy transport and ecosystem services from the local to the watershed scales. In this...

Gomez-Velez, J.D.; Wilson, J.L.; Cardenas, M.B.; Harvey, Judson

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Year Published: 2017

Quantile regression applications in ecology and the environmental sciences

No abstract available.

Koenker, Roger; Chernozhukov, Victor; He, Xuming ; Peng, Limin; Cade, Brian S.
Cade, B. S. 2017. Quantile regression applications in ecology and the environmental sciences. Pages 429-454 in R. Koenker et al., eds. Handbook of Modern Statistical Methods: Handbook of Quantile Regression. Chapman and Hall, CRC Press.

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Year Published: 2017

Ecosystem services from transborder migratory species: Implications for conservation governance

This article discusses the conservation challenges of volant migratory transborder species and conservation governance primarily in North America. Many migratory species provide ecosystem service benefits to society. For example, insectivorous bats prey on crop pests and reduce the need for pesticides; birds and insects pollinate food plants; and...

Lopez-Hoffman, Laura; Chester, Charles C.; Semmens, Darius J.; Thogmartin, Wayne E.; Rodriguez-McGoffin, M. Sofia; Merideth, Robert W.; Diffendorfer, Jay E.
Lopez-Hoffman, L., Chester, C.C., Semmens, D.J., Thogmartin, W.E., Rodriguez-McGoffin, M.S., Merideth, R., and Diffendorfer, J.E., 2017. Ecosystem services from transborder migratory species: Implicatinos for conservation governance. Annual Review of Environment and Resources, 42:1, 509-539.

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Year Published: 2017

Monarch butterfly population decline in North America: identifying the threatening processes

The monarch butterfly (Danaus plexippus) population in North America has sharply declined over the last two decades. Despite rising concern over the monarch butterfly's status, no comprehensive study of the factors driving this decline has been conducted. Using partial least-squares regressions and time-series analysis, we investigated climatic...

Thogmartin, Wayne E.; Wiederholt, Ruscena; Oberhauser, Karen; Drum, Ryan G.; Diffendorfer, Jay E.; Altizer, Sonia; Taylor, Orley R.; Pleasants, John M.; Semmens, Darius J.; Semmens, Brice X.; Erickson, Richard A.; Libby, Kaitlin; Lopez-Hoffman, Laura

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Year Published: 2017

Channel response to sediment release: insights from a paired analysis of dam removal

Dam removals with unmanaged sediment releases are good opportunities to learn about channel response to abruptly increased bed material supply. Understanding these events is important because they affect aquatic habitats and human uses of floodplains. A longstanding paradigm in geomorphology holds that response rates to landscape disturbance...

Collins, Mathias J.; Snyder, Noah P.; Boardman, Graham; Banks, William S.; Andrews, Mary; Baker, Matthew E.; Conlon, Maricate; Gellis, Allen; McClain, Serena; Miller, Andrew; Wilcock, Peter
Collins, M.J., Snyder, N.P., Boardman, Graham, Banks, W.S.L., Andrews, Mary, Baker, M.E., Conlon, Maricate, Gellis, Allen, McClain, Serena, Miller, Andrew, and Wilcok, Peter, 2017, Channel response to sediment release: insights from a paired analysis of dam removal: Earth Surface Processes and Landforms, v. 42, no. 11, p. 1,636-1,651, doi: 10.1002/esp.4108.

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Year Published: 2017

Geomorphic responses to dam removal in the United States – a two-decade perspective

Recent decades have seen a marked increase in the number of dams removed in the United States. Investigations following a number of removals are beginning to inform how, and how fast, rivers and their ecosystems respond to released sediment. Though only a few tens of studies detail physical responses to removals, common findings have begun to...

Tsutsumi, Daizo; Laronne, Jonathan B.; Major, Jon J.; East, Amy E.; O'Connor, Jim E.; Grant, Gordon E.; Wilcox, Andrew C.; Magirl, Christopher S.; Collins, Matthias J.; Tullos, Desiree D.
Major, J.J., East, A.E., O’Connor, J.E., Grant, G.E., Wilcox, A.C., Magirl, C.S., Collins, M.J., Tullos, D.D., 2017, Geomorphic responses to dam removal in the United States—a two-decade perspective, in Tsutsumi, D., Laronne, J., editors, Gravel Bed Rivers: Processes and Disasters. Wiley and Sons, p. 355-383.