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Earthquake stress-drop values delineate spatial variations in maximum shear stress in the Japanese forearc lithosphere Earthquake stress-drop values delineate spatial variations in maximum shear stress in the Japanese forearc lithosphere
Earthquake stress drop (Δσ) may increase with depth and stress in the brittle lithosphere. However, the range of uncertainty in Δσ and the lack of constraints on absolute stress make it difficult to establish whether they are correlated. Here, we investigate Δσ dependence on depth and maximum shear stress (τmax) based on ~11 years of seismicity in the northeastern Japanese forearc...
Authors
Gian Maria Bocchini, Armin Dielforder, Kilian B. Kemna, Rebecca M. Harrington, Elizabeth S. Cochran
Climatological effects on survival, recruitment, and possible extirpation of a Sierra Nevada anuran Climatological effects on survival, recruitment, and possible extirpation of a Sierra Nevada anuran
The drivers of population dynamics are a primary interest of ecologists, and predicting the consequences of climate variability on wildlife populations benefits from an understanding of how weather causes variation in the vital rates of populations. Given recent and projected extremes in annual precipitation in the Sierra Nevada of California, USA, including two severe droughts, we...
Authors
Brian J. Halstead, Patrick M. Kleeman, Jonathan P. Rose, Robert L. Grasso, Gary M. Fellers
Apparent annual survival of adult Golden-winged Warblers (Vermivora chrysoptera) may not differ by sex or region Apparent annual survival of adult Golden-winged Warblers (Vermivora chrysoptera) may not differ by sex or region
Understanding range-wide demographic, spatial, and temporal variation in annual survival is essential for managing species of conservation concern. Multi-population models are useful tools for integrating diverse datasets, reducing biases, and deriving survival estimates across differing spatial scales. We conducted a range-wide, multi-population apparent annual survival analysis for a...
Authors
Emily N. Filiberti, Amber M. Roth, Wayne E. Thogmartin, Ethan J. Royal, Kyle R. Aldinger, Ruth E. Bennett, David A. Buehler, Lesley P. Bulluck, Ronald A. Canterbury, Richard Chandler, Sarah J. Clements, Cameron J. Fiss, Keith A. Hobson, John Anthony Jones, David A. King, Gunnar R. Kramer, Jeffery L. Larkin, Darin J. McNeil, Jeffrey D. Ritterson, Anna Buckardt Thomas, Rachel Vallender, Steven L. Van Wilgenburg, Petra B. Wood
Movements and survival of hatchery reared juvenile cisco (Coregonus artedi) in Saginaw Bay, Lake Huron Movements and survival of hatchery reared juvenile cisco (Coregonus artedi) in Saginaw Bay, Lake Huron
Background Cisco (Coregonus artedi) were historically abundant throughout Lake Huron, including Saginaw Bay, but only a few remnant populations remain in northern Lake Huron today. Reestablishment of cisco is an important component of management plans to restore sustainable fisheries in Lake Huron. Cisco restoration efforts have focused on the release of hatchery-reared fish, but the...
Authors
Todd Hayden, Christopher M. Holbrook, Thomas R. Binder, Andrew Edgar Honsey, Roger Gordon, Kevin McDonnell, David G. Fielder, Aaron T. Fisk
Non-native bird populations respond differently to their environment and exhibit shifts in ecological niche limits across continents Non-native bird populations respond differently to their environment and exhibit shifts in ecological niche limits across continents
Aim The degree to which species' niches remain stable over space and time–the niche conservatism hypothesis–is critical for predicting species' responses to environmental change. Tests of this hypothesis typically focus on changes in niche centroids and boundaries. An outstanding question is whether species' environmental associations differ within the interior of their niche space–that...
Authors
Kristin P. Davis, Helen Sofaer, Henrik G. Smith, Henning Heldbjerg, Anna Gamero, Ainārs Auniņš, Lluís Brotons, Tomasz Chodkiewicz, Daniel Palm Eskildsen, Benoît Fontaine, John Atle Kålås, Primož Kmecl, Petras Kurlavičius, Aleksi Lehikoinen, Åke Lindström, Ingar Jostein Øien, Jiří Reif, Nicolas Strebel, Tibor Szép, Chris A.M. van Turnhout, Thomas Vikstrøm, Liba Pejchar
Application of fin tissue for nonlethal stable isotope analysis of small-bodied fishes Application of fin tissue for nonlethal stable isotope analysis of small-bodied fishes
Stable isotopes are commonly used to characterize food web structure and resource use by aquatic organisms. White muscle is generally preferred for stable isotope analysis of fishes. However, obtaining white muscle tissue typically requires lethal take or invasive sampling techniques, which are undesirable for small-bodied species or those of conservation concern. We assessed the use of...
Authors
Wade M. Wilson, Jane S. Rogosch, Scott F. Collins, Bart W. Durham, Kevin B. Mayes, Sarah M. Robertson
Recovery of Delaware Bay horseshoe crabs following harvest reductions Recovery of Delaware Bay horseshoe crabs following harvest reductions
Objective Horseshoe crabs Limulus polyphemus play a vital role in the Delaware Bay ecosystem. The migratory stopover of several shorebird species occurs during the horseshoe crab spawning season, and the eggs of horseshoe crabs provide an essential food source to fuel their northward migration to breeding areas. High commercial fishery use of horseshoe crabs as bait during the 1990s...
Authors
John A. Sweka, Kristen A. Anstead, David R. Smith, Linda Barry, Jordan Zimmerman, Steve Doctor, Craig Weedon, James Gartland, Yan Jiao, Francesco Ferretti, Eric M. Hallerman
Riverscape genetics of nonnative Brook Trout to inform native cutthroat trout conservation Riverscape genetics of nonnative Brook Trout to inform native cutthroat trout conservation
Objective Understanding how riverscape features influence gene flow is critical for managing population connectivity in freshwater species. We examined how landscape and stream characteristics shape the spatial genetic structure of nonnative Brook Trout Salvelinus fontinalis in a headwater stream network proposed for reintroduction of federally threatened Greenback Cutthroat Trout...
Authors
Taylor Stack, Audrey C. Harris, Matthew P. Fairchild, Sara J. Oyler-McCance, Jennifer A. Fike, Dana L. Winkelman, Yoichiro Kanno
Seasonal increases in global dryland gross primary production are modulated by root soil moisture and temperature Seasonal increases in global dryland gross primary production are modulated by root soil moisture and temperature
Dryland ecosystems, which are highly sensitive to environmental variability across space and through time, play a critical role in the global carbon cycle. To understand the carbon sink role of drylands, this study used different sources of global dryland gross primary productivity (GPP) and evaluated the spatiotemporal variations in seasonal GPP in response to climatic and soil water...
Authors
Lihua Lan, Seth M. Munson, Kailiang Yu, Zhongxiang Fang, Xiuzhi Chen, Weiguang Zhao, Siao Sun, Zhenbo Wang, Fei He, Yuan Liang
An automated compositing method for producing annual clear images from Landsat Collection 2 for annual NLCD production An automated compositing method for producing annual clear images from Landsat Collection 2 for annual NLCD production
Quality image input is fundamental to the quality of derived land cover products. Substantial time and effort are usually required to prepare images. Here, we present a novel and streamlined compositing algorithm that ingests Landsat Collection 2 Analysis Ready Data (ARD) and outputs cloud-free and gap-free composite imagery, which can be directly used for classification. This method...
Authors
Suming Jin, Tonian Robinson, Jon Dewitz, Kelcy Smith, Patrick Danielson, Kory Postma
Practical pathways for protecting headwater streams in urbanizing areas Practical pathways for protecting headwater streams in urbanizing areas
Headwater streams are diverse ecosystems and important sources of water and dissolved and particulate resources to the downstream river network. However, across the world, they are rapidly being degraded or lost through human activities, particularly urban development. This degradation and loss have negative consequences for the structure and function of headwater streams, as well as...
Authors
Belinda Hatt, Chamantha Athapaththu, Jonathan Behrens, Sally Boer, Matthew J. Burns, Ryan Burrows, Riley de Jong, Caroline Elsner, Vaughn Grey, Moss Imberger, Brianna Williams, Rhys Coleman
Control of a dominant predator influences the occurrence of a mesocarnivore of conservation concern Control of a dominant predator influences the occurrence of a mesocarnivore of conservation concern
Context Interspecific interactions shape ecological communities, influence community dynamics, and drive co-evolution. Despite their ecological significance, predation and competition remain understudied in plains spotted skunks (Spilogale interrupta), a species of conservation concern. Clarifying how predator management influences their occurrence is crucial for effective conservation...
Authors
Kara M. White, Amanda E. Cheeseman, Joshua D. Stafford, Robert Charles Lonsinger