Search Results - "Bixby, Rebecca J."

Stream nitrate enrichment and increased light yet no algal response following forest harvest and experimental manipulation of headwater riparian zones by Johnson, Sherri L, Argerich, Alba, Ashkenas, Linda R, Bixby, Rebecca J, Plaehn, David C

“…Disturbances to forested watersheds often result in increases of nutrients and light to nearby streams. Such changes are generally expected to produce a shift…”
Get full text

Changes in Stream Primary Producer Communities Resulting from Large-Scale Catastrophic Amphibian Declines: Can Small-Scale Experiments Predict Effects of Tadpole Loss? by Connelly, Scott, Pringle, Catherine M, Bixby, Rebecca J, Brenes, Roberto, Whiles, Matt R, Lips, Karen R, Kilham, Susan, Huryn, Alexander D

“…Global declines of amphibian populations are well documented, yet effects of these declines on freshwater ecosystem structure and function are poorly…”
Get full text

Neotropical tadpoles influence stream benthos: evidence for the ecological consequences of decline in amphibian populations by Ranvestel, Anthony W., Lips, Karen R., Pringle, Catherine M., Whiles, Matt R., Bixby, Rebecca J.

“…Summary 1. Few studies have assessed the role of tadpoles in tropical streams, although they are often abundant and conspicuous components of these systems…”
Get full text

Fire effects on aquatic ecosystems: an assessment of the current state of the science by Bixby, Rebecca J., Cooper, Scott D., Gresswell, Robert E., Brown, Lee E., Dahm, Clifford N., Dwire, Kathleen A.

“…Fire is a prevalent feature of many landscapes and has numerous and complex effects on geological, hydrological, ecological, and economic systems. In some…”
Get full text

Experimental nitrogen and phosphorus enrichment stimulates multiple trophic levels of algal and detrital‐based food webs: a global meta‐analysis from streams and rivers by Ardón, Marcelo, Zeglin, Lydia H., Utz, Ryan M., Cooper, Scott D., Dodds, Walter K., Bixby, Rebecca J., Burdett, Ayesha S., Follstad Shah, Jennifer, Griffiths, Natalie A., Harms, Tamara K., Johnson, Sherri L., Jones, Jeremy B., Kominoski, John S., McDowell, William H., Rosemond, Amy D., Trentman, Matt T., Van Horn, David, Ward, Amelia

“…ABSTRACT Anthropogenic increases in nitrogen (N) and phosphorus (P) concentrations can strongly influence the structure and function of ecosystems. Even though…”
Get full text

A meta‐analysis of primary productivity and rain use efficiency in terrestrial grassland ecosystems by Yang, Zhongling, Collins, Scott L., Bixby, Rebecca J., Song, Hongquan, Wang, Dong, Xiao, Rui

“…A comprehensive understanding of annual net primary productivity (ANPP) and rain‐use efficiency (RUE) along precipitation gradients is critial for grassland…”
Get full text

A Simple Method for Calculating Valve Curvature by Bixby, Rebecca J, Zeek, Erik C

“…Many closely related diatom species are differentiated by simple morphometric characters such as length, width, and striae density. In addition, simple shape…”
Get full text

Sediment cores in a municipal drinking-water reservoir as a record of geochemical transport within a watershed, Farmington Lake, New Mexico, USA by Blake, Johanna M., Brown, Jeb E., Ferguson, Christina L., Bixby, Rebecca J.

“…The geochemical record in lake sediments was investigated in four gravity-core collected sediment cores from Farmington Lake, a drinking-water reservoir, to…”
Get full text

Partitioning stoichiometric components of epilithic biofilm using mixing models by Small, Gaston E., Bixby, Rebecca J., Kazanci, Caner, Pringle, Catherine M.

“…Epilithic biofilms are an important and complex food resource in shallow aquatic ecosystems. Standard methods of sampling these biofilms typically yield a…”
Get full text

Effects of low-density development on stream biota: Evidence for biotic homogenization from an assemblage perspective by Solomon, Kelsey J., Sullivan, Jeremy C., Gardiner, Edward P., Scott, Mark C., Bixby, Rebecca J., Wenger, Seth J., Jackson, C. Rhett, Pringle, Catherine M.

“…•Low-density development impacts stream biodiversity, favoring cosmopolitan species.•Most endemic species persist in developing watersheds but in lower…”
Get full text

Sediment record of mining legacy and water quality from a drinking-water reservoir, Aztec, New Mexico, USA by Blake, Johanna M., Brown, Jeb E., Ferguson, Christina L., Bixby, Rebecca J., Delay, Naomi T.

“…The record of mining legacy and water quality was investigated in sediments collected in 2018 from four trenches in the Aztec, New Mexico, drinking-water…”
Get full text

Three new species of the diatom genus Hannaea Patrick (Bacillariophyta) from the Hengduan Mountains, China, with notes on Hannaea diversity in the region by Luo, Fen, You, Qingmin, Zhang, Lixuan, Yu, Pan, Pang, Wanting, Bixby, Rebecca J., Wang, Quanxi

“…Three new species of Hannaea Patrick from the Hengduan Mountains in China are formally described herein, based on light and scanning electron microscope…”
Get full text

Metal Reactivity in Laboratory Burned Wood from a Watershed Affected by Wildfires by Rahman, Asifur, El Hayek, Eliane, Blake, Johanna M, Bixby, Rebecca J, Ali, Abdul-Mehdi, Spilde, Michael, Otieno, Amanda A, Miltenberger, Keely, Ridgeway, Cyrena, Artyushkova, Kateryna, Atudorei, Viorel, Cerrato, José M

“…We investigated interfacial processes affecting metal mobility by wood ash under laboratory-controlled conditions using aqueous chemistry, microscopy, and…”
Get full text

Abundance and size change of Hannaea baicalensis in Lake Baikal by Jewson, David H., Bixby, Rebecca J.

“…Hannaea baicalensis is a benthic pennate diatom that predominantly grows at depths of less than a metre attached to rocks and filamentous algae in Lake Baikal,…”
Get full text

Wildfires and water chemistry: effect of metals associated with wood ash by Cerrato, José M, Blake, Johanna M, Hirani, Chris, Clark, Alexander L, Ali, Abdul-Mehdi S, Artyushkova, Kateryna, Peterson, Eric, Bixby, Rebecca J

“…The reactivity of metals associated with ash from wood collected from the Valles Caldera National Preserve, Jemez Mountains, New Mexico, was assessed through a…”
Get more information

The Effects of Amphibian Population Declines on the Structure and Function of Neotropical Stream Ecosystems by Whiles, Matt R., Lips, Karen R., Pringle, Cathy M., Kilham, Susan S., Bixby, Rebecca J., Brenes, Roberto, Connelly, Scott, Colon-Gaud, Jose Checo, Hunte-Brown, Meshagae, Huryn, Alexander D., Montgomery, Chad, Peterson, Scot

“…Amphibians can be important consumers in both aquatic and terrestrial habitats and may represent an important energetic link between the two, particularly in…”
Get full text

Automated measurement of diatom size by Spaulding, Sarah A., Jewson, David H., Bixby, Rebecca J., Nelson, Harry, McKnight, Diane M.

“…Size analysis of diatom populations has not been widely considered, but it is a potentially powerful tool for understanding diatom life histories, population…”
Get full text

Linking stream and landscape trajectories in the southern Appalachians by Gardiner, Edward P, Sutherland, Andrew B, Bixby, Rebecca J, Scott, Mark C, Meyer, Judy L, Helfman, Gene S, Benfield, E. Fred, Pringle, Cathy M, Bolstad, Paul V, Wear, David N

“…A proactive sampling strategy was designed and implemented in 2000 to document changes in streams whose catchment land uses were predicted to change over the…”
Get full text

Mechanisms underlying lack of functional compensation by insect grazers after tadpole declines in a Neotropical stream by Barnum, Thomas R., Wootton, John Timothy, Bixby, Rebecca J., Drake, John M., Murray‐Stoker, David, Colón‐Gaud, Checo, Rugenski, Amanda T., Frauendorf, Therese C., Connelly, Scott, Kilham, Susan S., Whiles, Matt R., Lips, Karen R., Pringle, Catherine M.

“…Resilience of ecosystems to the sudden decline of large‐bodied species is dependent on characteristics of surviving guild members. However, that response may…”
Get full text

Stream nitrate enrichment and increased light yet no algal response following forest harvest and experimental manipulation of headwater riparian zones by Sherri L. Johnson, Alba Argerich, Linda R. Ashkenas, Rebecca J. Bixby, David C. Plaehn

“…Disturbances to forested watersheds often result in increases of nutrients and light to nearby streams. Such changes are generally expected to produce a shift…”
Get full text