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Biodiversity loss reduces global terrestrial carbon storage
Natural ecosystems store large amounts of carbon globally, as organisms absorb carbon from the atmosphere to build large, long-lasting, or slow-decaying structures such as tree bark or root systems. An ecosystem’s carbon sequestration potential is tightly linked to its biological diversity. Yet when considering future projections, many carbon sequestration models fail to account for the role biodi
Authors
Sarah R. Weiskopf, Forest Isbell, Maria Isabel Arce-Plata, Moreno Di Marco, Mike Harfoot, Justin A. Johnson, Susannah B. Lerman, Brian W. Miller, Toni Lyn Morelli, Akira S. Mori, Ensheng Weng, Simon Ferrier
Earthquake relocations delineate discrete a fault network and deformation corridor throughout Southeast Alaska and Southwest Yukon
Deformation in southeastern Alaska and southwest Yukon is governed by the subduction and translation of the Pacific-Yakutat plates relative to the North American plate in the St. Elias region. Despite notable historical seismicity and major regional faults, studies of the region between the Fairweather and Denali faults are complicated by glacial coverage and the remote setting. In the last decade
Authors
Katherine M. Biegel, Jeremy M. Gosselin, Jan Dettmer, Maurice Colpron, Eva Enkelmann, Jonathan Caine
Earthquake cycle mechanics during caldera collapse: Simulating the 2018 Kīlauea eruption
In multiple observed caldera-forming eruptions, the rock overlying a draining magma reservoir dropped downward along ring faults in sequences of discrete collapse earthquakes. These sequences are analogous to tectonic earthquake cycles and provide opportunities to examine fault mechanics and collapse eruption dynamics over multiple events. Collapse earthquake cycles have been studied with zero-dim
Authors
Joshua Allen Crozier, Kyle R. Anderson
Evaluating the effectiveness of joint species distribution modeling for fresh water fish communities within large watersheds
Accurately predicting species’ distributions is critical for the management and conservation of fish and wildlife populations. Joint Species Distribution Models (JSDMs) account for dependencies between species often ignored by traditional species distribution models. We evaluated how a JSDM approach could improve predictive strength for stream fish communities within large watersheds (the Chesapea
Authors
Paul McLaughlin, Kevin Krause, Kelly O. Maloney, Taylor E Woods, Tyler Wagner
Why do avian responses to change in Arctic green-up vary?
Global climate change has altered the timing of seasonal events (i.e., phenology) for a diverse range of biota. Within and among species, however, the degree to which alterations in phenology match climate variability differ substantially. To better understand factors driving these differences, we evaluated variation in timing of nesting of eight Arctic-breeding shorebird species at 18 sites over
Authors
Eveling A. Tavera, David B. Lank, David C. Douglas, Brett K. Sandercock, Richard B. Lanctot, Niels M. Schmidt, Jeroen Reneerkens, David H. Ward, Joel Bety, Eunbi Kwon, Nicolas Lecomte, Cheri L Gratto-Trevor, Paul A. Smith, Willow B. English, Sarah T. Saalfeld, Stephen C. Brown, H. River Gates, Erica Nol, Joseph R. Liebezeit, Rebecca L. McGuire, Laura McKinnon, Steve Kendall, Martin D. Robards, Megan Boldenow, David C. Payer, Jennie Rausch, Mikhail Soloviev, Diana V. Solovyeva, Steve Zack, Jordyn Stalwick, Kirsty E. B. Gurney
Pockmarks offshore Big Sur, California provide evidence for recurrent, regional, and unconfined sediment gravity flows
Recent surface ship multibeam surveys of the Sur Pockmark Field, offshore Central California, reveal >5,000 pockmarks in an area that is slated to host a wind farm, between 500- and 1,500-m water depth. Extensive fieldwork was conducted to characterize the seafloor environment and its recent geologic history, including visual observations with remotely operated vehicles, sediment core sampling, an
Authors
E. Lundsten, Charles K. Paull, R. Gwiazda, S. Dobbs, D.W. Caress, Linda A. Kuhnz, M. Walton, N. Nieminski, Mary McGann, Thomas Lorenson, Guy R. Cochrane, Jason A. Addison
Chronic wasting disease alters the movement behavior and habitat use of mule deer during clinical stages of infection
Integrating host movement and pathogen data is a central issue in wildlife disease ecology that will allow for a better understanding of disease transmission. We examined how adult female mule deer (Odocoileus hemionus) responded behaviorally to infection with chronic wasting disease (CWD). We compared movement and habitat use of CWD-infected deer (n = 18) to those that succumbed to starvation (an
Authors
Gabriel M. Barrile, Paul Cross, Cheynne Stewart, Jennifer L. Malmberg, Rhiannon P. Jakopak, Justin Binfet, Kevin Montieth, Brandon Werner, Jessica Jennings-Gaines, JA Merkle
Resilience is not enough: Toward a more meaningful rangeland adaptation science
Rangeland ecosystems, and their managers, face the growing urgency of climate change impacts. Researchers are therefore seeking integrative social-ecological frameworks that can enhance adaptation by managers to these climate change dynamics through tighter linkages among multiple scientific disciplines and manager contexts. Social-ecological framings, including resilience and vulnerability, are p
Authors
Hailey Wilmer, Daniel B. Ferguson, Maude Dinan, Eric Thacker, Peter B. Adler, Kathryn Bills Walsh, John B. Bradford, Mark Brunson, Justin D. Derner, Emile Elias, Andrew J Felton, Curtis A. Gray, Christina Greene, Mitchel P McClaran, Robert K. Shriver, Mitch Stephenson, Katharine Nash Suding
Accuracy, accessibility, and institutional capacity shape the utility of habitat models for managing and conserving rare plants on western public lands
Public lands are often managed for multiple uses ranging from energy development to rare plant conservation. Habitat models can help land managers assess and mitigate potential effects of projects on rare plants, but it is unclear how models are currently being used. Our goal was to better understand how staff in the Bureau of Land Management currently use habitat models to inform their decisions,
Authors
Ella M. Samuel, Jennifer K. Meineke, Laine E. McCall, Lea B. Selby, Alison C. Foster, Zoe M. Davidson, Carol A. Dawson, Catherine S. Jarnevich, Sarah K. Carter
Effects of episodic stream dewatering on brook trout spatial population structure
Stream dewatering is expected to become more prevalent due to climate change, and we explored the potential consequences for brook trout (Salvelinus fontinalis) within a temperate forest ecosystem in eastern North America.We estimated fish density within stream pools (n = 386) from electrofishing surveys over 10 years (2012–2021) to compare a stream that exhibits episodic dewatering (Paine Run) ag
Authors
Nathaniel P. Hitt, Karli M Rogers, Karmann G. Kessler, Martin Briggs, Jennifer Burlingame Hoyle Fair, Andrew C. Dolloff
The dominance and growth of shallow groundwater resources in continuous permafrost environments
Water is a limited resource in Arctic watersheds with continuous permafrost because freezing conditions in winter and the impermeability of permafrost limit storage and connectivity between surface water and deep groundwater. However, groundwater can still be an important source of surface water in such settings, feeding springs and large aufeis fields that are abundant in cold regions and generat
Authors
Joshua C. Koch, Craig T. Connolly, Carson Baughman, Marisa Repasch, Heather Best, Andrew Hunt
To mix or not to mix: Details of magma storage, recharge, and remobilization during the Pacheco stage at Misti Volcano, Peru (≤21–2 ka)
We investigate ten of the most recent tephra-fall deposits emplaced between ≤21–2 ka from the Pacheco stage of Misti volcano, Peru, to elucidate magma dynamics and explosive eruption triggers related to magma storage, recharge, and remobilization. Whole-rock, glass, and mineral textures and compositions indicate the presence of broadly felsic, intermediate, and mafic magmas in a chemically and the
Authors
Marie K. Takach, Frank J. III Tepley, Christopher Harpel, Rigoberto Aguilar, Marco Rivera