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Pacific walrus population research Pacific walrus population research
Authors
William S. Beatty, Irina S. Trukhanova
A hybrid approach for revealing headwater hydrology A hybrid approach for revealing headwater hydrology
Coordinated work to compile existing data and apply models pairing physical understanding with machine learning could substantially improve streamflow predictions for little-known headwater basins.
Authors
John C. Hammond, Jay R. Christensen, Kristin Jaeger, Roy Sando, Jacob Aaron Zwart
The Zooplankton International Geospatial (ZIG) dataset: A global repository of spatiotemporal freshwater zooplankton community composition data from lakes and reservoirs to support ecological research The Zooplankton International Geospatial (ZIG) dataset: A global repository of spatiotemporal freshwater zooplankton community composition data from lakes and reservoirs to support ecological research
Zooplankton transfer substantial energy in aquatic food webs and are used as indicators of environmental change. Syntheses of zooplankton community dynamics globally require datasets that span a wide range of environmental gradients; however, these datasets are limited due to methodological differences across programs, taxonomic inconsistencies, and a lack of standardized metadata. To...
Authors
Stephanie E. Figary, Michael Frederick Meyer, Rachel M. Pilla, Warren J. Currie, Javier Alcocer, Maria Belen Alfonso, Caitlin M. Andrews, Orlane Anneville, Ana M. Antao-Geraldes, Shelley E. Arnott, Syuhei Ban, Arnab Banerjee, Gabor Bernat, Jessica E. Beyer, Katlin Blank, Kelly L. Bowen, Christer Brönmark, Rosalie Bruel, Sarah H. Burnet, Tyler J. Butts, Cayelan C. Carey, Rossana Caroni, Moitreyee Chakrabarty, Sudeep Chandra, Kristen S. Christoffersen, Alicia Cortes, Maria Cristina Crispim, Elvira de Eyto, Luciana De Souza Cardoso, Bridget R. Deemer, Curtis L. DeGasperi, Braden C. DeMattei, Jianming Deng, Jean-Pierre Descy, Inta Dimante-Deimantovica, Nadia Diovisalvi, Renata Dondajewska-Pielka, Jonathon P. Doubek, Tvrtko Drazina, Hilary A. Dugan, Zorka Dulic, Ashley A. Dunker, Gael Dur, Brie A. Edwards, Jolanta E. Ejsmont-Karabin, Mariam Elmarsafy, Zeynep Ersoy, Rocio Luz Fernandez, Heidrun Feuchtmayr, Maria S. Fontanarrosa, Elena Forasacco, Laszlo G.-Toth, Evelyn E. Gaiser, Gideon Gal, Anita Galir, Javier R. Garcia de Souza, Scott F. Girdner, Ryszard Goldyn, Karl D. Hambright, David P. Hamilton, Lars-Anders Hansson, Susan P. Hendricks, Huihuang Chen, Pascal M. Isumbisho, Stephan Jacquet, Jun Yang, Martin J. Kainz, Maciej Karpowicz, Samiullah Khan, Katarzyna Kowalczewska-Madura, Natalia Kuczyńska-Kippen, Silke Langenheder, Sarah D. Lawhun, Barbara Leoni, Fabio Lepori, Shuqi Lin, Arni H. Litt, Eleanor B. Mackay, Marina M. Manca, Shin-Ichiro S. Matsuzaki, Blake Matthews, Linda May, Yvonne R. McElarney, Christopher J. McLimans, Rosemberg F. Menezes, Ewa Merz, Evangelia Michaloudi, S. Jannicke Moe, Doerthe C. Mueller-Navarra, Manuel E. Muñoz-Colmenares, Kayden Nasworthy, Veronica Nava, Jens C. Nejstgaard, Ulrike Obertegger, David A. Ortiz, Luis A. Oseguera, Michael J. Paterson, Maria C. Piccolo, Lorena Pinheiro-Silva, Roberta Piscia, Francesco Pomati, Serena Rasconi, Brian L. Reid, Leonardo L. Ribeiro, Florencia M. Rojas Molina, Joanna Rosińska, Lars G. Rudstam, James A. Rusak, Olga O. Rusanovskaya, Nico Salmaso, Jouko Sarvala, Samuel Geoffrey Schladow, Anna G. Schmidt, Anne E. Scofield, Facundo Scordo, Jaromir Seda, Katie J. Senft, Kirill Shchapov, Svetlana V. Shimaraeva, Eugene A. Silow, Maria Spoljar, Dietmar Straile, Silva M. Sundberg, Jon N. Sweetman, Celia C. Symons, Andrew J. Tanentzap, Barbara Tartarotti, Stephen J. Thackeray, Jan-Erik Thrane, Maxim A. Timofeyev, Jörg Tittel, Pablo Urrutia-Cordero, Piet Verburg, Danielle Vieira, Heather L. Wander, Shohei Watanabe, David S. White, Sabine Wollrab, Vivian Yorojo Moreno, Horacio E. Zagarese, Matiss Zagars, Petr Znachor
Importance of fish in the diet of Adélie penguins across multiple life stages Importance of fish in the diet of Adélie penguins across multiple life stages
Over recent decades, the Adélie penguin (Pygoscelis adeliae) population has grown across most of its range, the exception being the northern coast of the western Antarctic Peninsula (WAP). In the Ross Sea, the very large Cape Crozier colony grew to reach ~9% of the global population. Demographic factors driving the Cape Crozier trend have yet to be identified. However, low chick fledging...
Authors
David G. Ainley, Katie M. Dugger, Megan Elrod, Amelie S. Lescroël
Shoreline behavior at California groin fields from satellite-based measurements Shoreline behavior at California groin fields from satellite-based measurements
Satellite imagery has helped to provide decades of shoreline change data to coastal regions all over the world. Although shorelines around the globe have been armored with different types of coastal structures to try and protect beaches and properties from erosion, there are few studies of shoreline dynamics within structures such as groin fields using satellite images. Here we apply...
Authors
Catherine N. Janda, Teresa Hachey, Sharon Batiste, Mark A. Lundine, Daniel D. Buscombe, Jonathan A. Warrick
Functional traits can explain coordinated seedling responses to drought and freezing stress Functional traits can explain coordinated seedling responses to drought and freezing stress
Limited plant establishment creates demographic bottlenecks that can alter vegetation trajectories in changing environments, yet it is unclear how common eco-evolutionary indicators of plant strategy shape early response to key stressors. We evaluated how early functional traits, phylogeny, and adult climate niche jointly explain seedling drought and freezing tolerance across 49 semi...
Authors
Julie E. Larson, Bradley J. Butterfield, Seth M. Munson, Dylan F. Neuhaus, Stella M. Copeland
Using a temporary emigration model to estimate abundance of stream fishes from hybrid removal surveys with and without block nets Using a temporary emigration model to estimate abundance of stream fishes from hybrid removal surveys with and without block nets
Monitoring programs are often faced with a decision to allocate resources into either robust spatiotemporal coverage to estimate a population index (e.g., not true abundance) or confirming closed sampling conditions (e.g., with block nets) for an unbiased population estimate at the cost of spatiotemporal coverage. However, making accurate and precise abundance estimates at robust...
Authors
Brock M. Huntsman, Russell Perry, Kai Palenscar, Brett Mills, Kerwin Russell, Marissa L. Wulff, Heather Dyer, Russell Barabe
Self-similar vent clustering in the Pinacate volcanic field (Sonora, Mexico and Arizona, United States) Self-similar vent clustering in the Pinacate volcanic field (Sonora, Mexico and Arizona, United States)
The spatial distribution of vents in a distributed volcanic field may provide clues about the geometry of the volcanic field’s plumbing system. Distributed volcanism is characterized by magma feeders that are independent of one another, scattered over wide areas, and active for relatively short times (typically less than one hundred years). On the other hand, focused volcanism results in...
Authors
Francesco Mazzarini, Ilaria Isola, Emily E. Zawacki, Amanda B. Clarke, Ramon Arrowsmith, Daniel J. Lynch, Alejandro Hinojosa-Corona
Exhumation history of the Sangre de Cristo Range, Colorado, from mid- to low-temperature thermochronology: New insights into Laramide contraction and Oligocene–Miocene extension in the northern Rio Grande rift, USA Exhumation history of the Sangre de Cristo Range, Colorado, from mid- to low-temperature thermochronology: New insights into Laramide contraction and Oligocene–Miocene extension in the northern Rio Grande rift, USA
The Sangre de Cristo Range in southern Colorado records a complex tectonic history that includes Late Cretaceous–Eocene Laramide contraction and Oligocene–Quaternary Rio Grande rift extension. We present new thermochronologic data (40Ar/39Ar, fission-track, (U-Th)/He) and thermal history models that provide insight into this polyphase history and spatiotemporal patterns of extensional...
Authors
John S. Singleton, Samantha Malavarca, Alexis K. Ault, Omar Ghamedi, M. Cole Sitar, Paul O’Sullivan, Martin Wong, Jonathan Saul Caine, James R. Metcalf, Dylan Frawley, Jeffrey M. Rahl
Lake trout colonization of artificial reefs: Who’s interested, and how long does it take? Lake trout colonization of artificial reefs: Who’s interested, and how long does it take?
Restoring self-sustaining lake trout (Salvelinus namaycush) populations has been a major management objective for decades across the species’ native range. Reproduction has been observed but recruitment has been limited in many areas of the Laurentian Great Lakes. Reef restoration and construction have been proposed to increase recruitment, leading to the construction of experimental...
Authors
Matthew H. Futia, Tyler Reid Funnell, Ji He, J. Ellen Marsden, Thomas R Binder
Estimating submersed aquatic vegetation biomass using a hierarchical Bayesian model of ordinal measurements and structural zeros Estimating submersed aquatic vegetation biomass using a hierarchical Bayesian model of ordinal measurements and structural zeros
This study explores the prediction of a continuous target variable that is primarily measured as an ordinal outcome. Interest in such prediction may occur given data from double- or two-phase sampling designs, where an auxiliary variable is measured at all sampling units and a target and predictor variable, X, at a subset of those units. This study focuses on the case where X is...
Authors
Julie Sherman, Katie St Clair, Brian R. Gray, Danelle M. Larson
Root biomass and productivity in coastal swamp forests of Louisiana (USA) Root biomass and productivity in coastal swamp forests of Louisiana (USA)
Coastal swamp forests (CSF) occupy approximately 225,000 ha in Southeastern Louisiana (USA), and across a large percentage of this area, CSF are subjected to sediment starvation, salinity intrusion, and chronic submergence. We assessed root biomass and productivity in nine CSF in Louisiana, and found that root biomass ranged from 420.8 g m−2 to 1712.2 g m−2 to a soil depth of 30 cm. Root...
Authors
Ken W. Krauss, Jorge A. Villa, Blair A. Miller, Eric J. Ward, Andrew S. From, Gregory B. Noe