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Snow surface roughness across spatio-temporal scales Snow surface roughness across spatio-temporal scales
The snow surface is at the interface between the atmosphere and Earth. The surface of the snowpack changes due to its interaction with precipitation, wind, humidity, short- and long-wave radiation, underlying terrain characteristics, and land cover. These connections create a dynamic snow surface that impacts the energy and mass balance of the snowpack, blowing snow potential, and other...
Authors
Steven R. Fassnacht, Kazuyoshi Suzuki, Jessica E. Sanow, Graham A. Sexstone, Anna K.D. Pfohl, Molly E. Tedesche, Bradley M. Simms, Eric S. Thomas
Masting is uncommon in trees that depend on mutualist dispersers in the context of global climate and fertility gradients Masting is uncommon in trees that depend on mutualist dispersers in the context of global climate and fertility gradients
The benefits of masting (volatile, quasi-synchronous seed production at lagged intervals) include satiation of seed predators, but these benefits come with a cost to mutualist pollen and seed dispersers. If the evolution of masting represents a balance between these benefits and costs, we expect mast avoidance in species that are heavily reliant on mutualist dispersers. These effects...
Authors
Tong Qiu, Marie-Claire Aravena Acuna, Davide Ascoli, Yves Bergeron, Michal Mogdziewicz, Thomas Biovin, Raul Bonal, Thomas Caignard, Maxime Cailleret, Rafael Calama, Sergio Donoso Calderon, J. Julio Camarero, Chia-Hua Chang-Yang, Jerome Chave, Francesco Chianucci, Benoit Courbaud, Andrea Cutini, Adrian J. Das, Nicolas Delpierre, Sylvain Delzon, Michael Dietze, Laurent Dormont, Josep Maria Espelta, Timothy J. Fahey, William Farfar-Rios, Jerry F. Franklin, Catherine A. Gehring, Gregory S. Gilbert, Georg Gratzner, Cathryn H. Greenberg, Arthur Guignabert, Qinfeng Guo, Andrew Hacket-Pain, Arndt Hampe, Qingmin Han, Jan Holik, Kazuhiko Hoshizaki, Ines Ibanez, Jill F. Johnstone, Valentin Journé, Thomas Kitzberger, Jean Knops, Georges Kunstler, Hiroko Kurokawa, Jonathan G. A. Lageard, Jalene M. LaMontagne, Francois Lefevre, Theodor Leininger, Jean-Marc Limousin, James A. Lutz, Diana Macias, Anders Marell, Eliot J. B. McIntire, Christopher Moore, Emily V. Moran, Renzo Motta, Jonathan A. Myers, Thomas A. Nagel, Shoji Naoe, Mohoko Noguchi, Michio Oguro, Robert Parmenter, Ignacio M. Perez-Ramos, Lukasz Piechnik, Tomasz Podforski, John Poulsen, Miranda D. Redmond, Chad Reid, Kyle C. Rodman, Fransisco Rodrigues-Sanchez, Pavel Samonil, Javier Sanguinetto, Lane Scher, Barbara Seget, Shubhi Sharma, Mitsue Shibata, Miles Silman, Michael A. Steele, Nathan L. Stephenson, Jacob N. Straub, Samantha Sutton, Jennifer J. Swenson, Margaret Swift, Peter A. Thomas, Maria Uriarte, Giorgio Vacchiano, Amy V. Whipple, Thomas G. Whitham, Andreas Wion, Joseph Wright, Kai Zhu, Jess Zimmermann, Magdalena Zywiec, James S. Clark
Validation and comparison of age estimates for Smallmouth Buffalo in Oklahoma based on otoliths, pectoral fin rays, and opercula Validation and comparison of age estimates for Smallmouth Buffalo in Oklahoma based on otoliths, pectoral fin rays, and opercula
With an increased interest in nongame fishes such as buffalofishes (Catostomidae, Ictiobus), there is a need for better foundational data on their life history. Bigmouth Buffalo I. cyprinellus, for example, have been found to live for more than a century. Age estimates for other sucker species have similarly suggested long life spans, but validation studies as reference points are often...
Authors
James M. Long, Richard A. Snow, Daniel E. Shoup, Jory B. Bartnicki
Witnessing history: Comparison of a century of sedimentary and written records in a California protected area Witnessing history: Comparison of a century of sedimentary and written records in a California protected area
We use a combination of proxy records from a high-resolution analysis of sediments from Searsville Lake and adjacent Upper Lake Marsh and historical records to document over one and a half centuries of vegetation and socio-ecological change—relating to logging, agricultural land use change, dam construction, chemical applications, recreation, and other drivers—on the San Francisco...
Authors
R. Scott Anderson, M. Allison Stegner, SeanPaul La Selle, Brian L. Sherrod, Anthony D. Barnosky, Elizabeth A. Hadly
Multi-scale relationships in thermal limits within and between two cold-water frog species uncover different trends in physiological vulnerability Multi-scale relationships in thermal limits within and between two cold-water frog species uncover different trends in physiological vulnerability
1. Critical thermal limits represent an important component of an organism's capacity to cope with future temperature changes. Understanding the drivers of variation in these traits may uncover patterns in physiological vulnerability to climate change. Local temperature extremes have emerged as a major driver of thermal limits, although their effects can be mediated by the exploitation...
Authors
Amanda S. Cicchino, Alisha A. Shah, Brenna R. Forester, Jason Dunham, Cameron K. Ghalambor, W. Chris Funk
Egg production and endocrine profiles of female whooping cranes (Grus americana) maintained ex situ are improved in naturalized enclosures Egg production and endocrine profiles of female whooping cranes (Grus americana) maintained ex situ are improved in naturalized enclosures
Whooping cranes (Grus americana) are naturally seasonal breeders and rely on wetland habitats throughout the annual cycle. However, captive cranes are commonly housed in dry outdoor pens, which may lack key environmental stimuli that in turn compromise reproduction. Our study sought to first, assess seasonal patterns of reproductive hormones in successful versus non-successful bird pairs...
Authors
Megan E. Brown, Glenn H. Olsen, Carol L. Keefer, Nucharin Songsasen
The influence of large woody debris on post-wildfire debris flow sediment storage The influence of large woody debris on post-wildfire debris flow sediment storage
Debris flows transport large quantities of water and granular material, such as sediment and wood, and this mixture can have devastating impacts on life and infrastructure. The proportion of large woody debris (LWD) incorporated into debris flows can be enhanced in forested areas recently burned by wildfire, because wood recruitment into channels accelerates in burned forests. In this...
Authors
Francis K. Rengers, Luke A. McGuire, Katherine R. Barnhart, Ann Youberg, Daniel Cadol, Alexander N. Gorr, Olivia J. Hoch, Rebecca Beers, Jason W. Kean
MetaIPM: Placing integral projection models into a metapopulation framework MetaIPM: Placing integral projection models into a metapopulation framework
Metapopulation models include spatial population dynamics such as dispersion and migration between subpopulations. Integral projection models (IPMs) can include demographic rates as a function of size. Traditionally, metapopulation models do not included detailed populaiton models such as IPMs. In some situations, both local population dynamics (e.g. size-based survival) and spatial...
Authors
Richard A. Erickson, James P Peirce, Greg J. Sandland, Hannah Mann Thompson, Alison A. Coulter, David C. Glover
Modeled predictions of human-associated and fecal-indicator bacteria concentrations and loadings in the Menomonee River, Wisconsin using in-situ optical sensors Modeled predictions of human-associated and fecal-indicator bacteria concentrations and loadings in the Menomonee River, Wisconsin using in-situ optical sensors
Human sewage contamination of waterways is a major issue in the United States and throughout the world. Models were developed for estimation of two human-associated fecal-indicator and three general fecal-indicator bacteria (HIB and FIB) using in situ optical field-sensor data for estimating concentrations and loads of HIB and FIB and the extent of sewage contamination in the Menomonee...
Authors
Peter L. Lenaker, Steven R. Corsi, Laura A. DeCicco, Hayley T. Olds, Debra K. Dila, Mari Danz, Sandra L. McLellan, Troy D. Rutter
Behavioral responses of terrestrial mammals to COVID-19 lockdowns Behavioral responses of terrestrial mammals to COVID-19 lockdowns
COVID-19 lockdowns reduced human mobility, providing an opportunity to disentangle its effects on animals from those of landscape modifications. Using GPS data, we compared movements and road avoidance of 2300 terrestrial mammals (43 species) during the 2020 lockdowns to the same period in 2019. Individual responses were variable, with no change in average movements or road avoidance...
Authors
Marlee A. Tucker, Aafke M. Schipper, Tempe S. F. Adams, Nina Attias, Tal Avgar, Natarsha Lauren Babic, Kristin J. Barker, Guillaume Bastille-Rousseau, Dominik M. Behr, Jerrold L. Belant, Dean E. Beyer, Niels Blaum, J. David Blount, Dirk Bockmühl, Ricardo Luiz Pires Boulhosa, Michael B. Brown, Buuveibaatar Bayarbaatar, Francesca Cagnacci, Justin M. Calabrese, Rok Černe, Simon Chamaillé-Jammes, Aung Nyein Chan, Michael J. Chase, Yannick Chaval, Yvette Chenaux-Ibrahim, Seth Cherry, Duško Ćirović, Emrah Çoban, Eric K. Cole, Laura Conlee, Courtemanch, Gabriele Cozzi, Sarah C Davidson, Darren DeBloois, Nandintsetseg Dejid, Vickie DeNicola, Arnaud L.J. Desbiez, Iain Douglas-Hamilton, David Drake, Michael Egan, William F. Fagan, Morgan J. Farmer, Julian Fennessy, Shannon P. Finnegan, Christen H. Fleming, Bonnie Fournier, N. L. Fowler, Mariela G. Gantchoff, Alexandre Garnier, Benedikt Gehr, Chris Geremia, Jacob R. Goheen, Morgan L. Hauptfleisch, Mark Hebblewhite, Morten Heim, Anne G. Hertel, Marco Heurich, A.J. Mark Hewison, James Hodson, Nicholas Hoffman, J. Grant C. Hopcraft, Djuro Huber, Edmund J. Isaac, Karolina Janik, Miloš Ježek, Örjan Johansson, Neil R. Jordan, Petra Kaczensky, Douglas N. Kamaru, Matthew J. Kauffman, Todd M. Kautz, Roland Kays, Allicia P Kelly, Jonas Kindberg, Miha Krofel, Josip Kusak, Clayton T. Lamb, Tayler N LaSharr, Peter Leimgruber, Horst Leitner, Michael Lierz, John Linnell, Purevjav Lkhagvaja, Ryan A. Long, José Vicente López-Bao, Matthias-Claudio Loretto, Pascal Marchand, Hans Martin, Lindsay A. Martinez, Roy T. McBride, Ashley A.D. McLaren, Erling Meisingset, Joerg Melzheimer, Evelyn Merrill, Arthur D. Middleton, Kevin Monteith, Seth A. Moore, Bram Van Moorter, Nicolas Morellet, Thomas Morrison, Rebekka Müller, Atle Mysterud, Michael T. Noonan, David O’Connor, Daniel Olson, Kirk A. Olson, Anna C. Ortega, Federico Ossi, Manuela Panzacchi, Robert Patchett, Brent R. Patterson, Rogerio Cunha de Paula, John Payne, Wibke Peters, Tyler R. Petroelje, Benjamin J. Pitcher, Boštjan Pokorny, Kim Poole, Hubert Potočnik, Marie-Pier Poulin, Robert M. Pringle, Herbert H.T. Prins, Nathan Ranc, Slaven Reljić, Benjamin S. Robb, Ralf Röder, Christer Moe Rolandsen, Christian Rutz, Albert Salemgareyev, G. Samelius, Heather Sayine-Crawford, S. Schooler, Cagan H. Sekercioglu, Nuria Selva, Paola Semenzato, Agnieszka Sergiel, Koustubh Sharma, Avery L. Shawler, Johannes Signer, Vaclav Silovsky, João Paulo Silva, Richard Simon, Rachel A. Smiley, Douglas W. Smith, Erling J. Solberg, Diego Ellis-Soto, Orr Spiegel, Jared A. Stabach, Jenna Stacy-Dawes, Daniel R. Stahler, John A. Stephenson, Cheyenne Stewart, Olav Strand, Peter Sunde, Nathan Svoboda, Johnathan Swart, Jeffrey J. Thompson, Katrina L. Toal, Kenneth Uiseb, Meredith C. VanAcker, Marianela Velilla, Tana L Verzuh, Bettina Wachter, Brittany L. Wagler, Jesse Whittington, Martin Wikelski, Christopher C. Wilmers, George Wittemyer, Julie K. Young, Filip Zieba, Tomasz Zwijacz-Kozica, Mark A.J. Huijbregts, Thomas Mueller
Reevaluation of 2,3,7,8-tetrachlorodibenzo-p-dioxin equivalency factors for dioxin-like polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and polychlorinated biphenyls for fishes Reevaluation of 2,3,7,8-tetrachlorodibenzo-p-dioxin equivalency factors for dioxin-like polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and polychlorinated biphenyls for fishes
An expert meeting was organized by the World Health Organization (WHO) in 1997 to streamline assessments of risk posed by mixtures of dioxin-like chemicals (DLCs) through development of 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD) equivalency factors (TEFs) for mammals, birds, and fishes. No reevaluation has been performed for fish TEFs. Therefore, the objective of the present...
Authors
Jon A. Doering, Donald E. Tillitt, Steve Wiseman
Quantifying ecosystem states and state transitions of the Upper Mississippi River System using topological data analysis Quantifying ecosystem states and state transitions of the Upper Mississippi River System using topological data analysis
Aquatic systems worldwide can exist in multiple ecosystem states (i.e., a recurring collection of biological and chemical attributes), and effectively characterizing multidimensionality will aid protection of desirable states and guide rehabilitation. The Upper Mississippi River System is composed of a large floodplain river system spanning 2200 km and multiple federal, state, tribal and...
Authors
Danelle M. Larson, Wako Bungula, Casey McKean, Alaina Stockdill, Amber Lee, Frederick Miller, Killian Davis