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Evaluating population trends of juvenile Atlantic Sturgeon at low abundance in a dynamic estuarine environment (Hudson River, New York)
Evaluating population trends in dynamic estuarine environments can be challenging, especially when survey data include a high percentage of zero observations. In fishery-independent surveys, zeros that come from reduced susceptibility to sample gears and reduced availability of the population to the survey impact survey catchability and negatively bias relative abundance indices. A zero-inflated n
Authors
Mark Richard Dufour, Song S. Qian
Assembly of the largest squamate reference genome to date: The western fence lizard, Sceloporus occidentalis
Spiny lizards (genus Sceloporus) have long served as important systems for studies of behavior, thermal physiology, dietary ecology, vector biology, speciation, and biogeography. The western fence lizard, Sceloporus occidentalis, is found across most of the major biogeographical regions in the western United States and northern Baja California, Mexico, inhabiting a wide range of habitats, from gra
Authors
Anusha P. Bishop, Erin P. Westeen, Michael L. Yuan, Merly Escalona, Eric Beraut, Colin Fairbairn, Mohan P. A. Marimuthu, Oanh Nguyen, Noravit Chumchim, Erin Toffelmier, Robert N. Fisher, H. Bradley Shaffer, Ian J. Wang
Antimycin A species sensitivity distribution: Perspectives for non-indigenous fish control
The global transfer of aquatic biota outside their native geographical range has resulted in dramatic changes to biological communities. Many nonnative species introductions are facilitated by human activity and then spread intra-continentally through connected watersheds once established. Resource managers therefore utilize multiple control technologies, such as management chemicals, for fisherie
Authors
Gavin N. Saari
A hierarchical modelling framework for estimating individual- and population-level reproductive success from movement data
Rapidly advancing animal telemetry technologies paired with new statistical models can provide insight into the behaviour of otherwise unobservable free-living animals. Changes in behaviour apparent from pairing telemetry with statistical models often occur as animals undertake key life-history activities, such as reproduction. For many species that are secretive or occupy remote areas, these life
Authors
Joseph Michael Eisaguirre, Perry J. Williams, Julia C. Brockman, Stephen B. Lewis, Christopher P. Barger, Greg A. Breed, Travis L. Booms
Evaluation of nearshore bathymetric inversion algorithms using camera observations and synthetic numerical input of surface waves during storms
Nearshore bathymetry is difficult to measure using survey methods when wave heights approach the breaking limit. Remote sensing using digital cameras offers a way to observe the surf zone and calculate water depths based on phase speed but comes with its challenges of potentially noisy data that can introduce error into estimates of frequency and wavenumber used in phase speed calculation. This st
Authors
Elora Oades, Ryan Mulligan, Margaret Louise Palmsten
Historical DNA reveals climate adaptation in an endangered songbird
To cope with climate change, species may shift their distributions or adapt in situ to changing environmental conditions. However, clear examples of genetic changes via adaptation are limited. We explore evolutionary responses to climate change in the endangered southwestern willow flycatcher (Empidonax traillii extimus) through whole-genome comparisons between historical specimens, collected from
Authors
Sheela P. Turbek, Christen Bossu, Christine Rayne, Cristian Gruppi, Barbara E. Kus, Mary J. Whitfield, Thomas B. Smith, Eben H. Paxton, Rachael A. Bay, Kristen C Ruegg
Using simulated GEDI waveforms to evaluate the effects of beam sensitivity and terrain slope on GEDI L2A relative height metrics over the Brazilian Amazon Forest
The vertical structure of forests provides important parameters for estimating aboveground biomass (AGB) and it can be measured by LiDAR sensors. The Global Ecosystem Dynamics Investigation (GEDI) full-waveform LiDAR sensor collects data systematically over the Earth’s surface from the International Space Station. Since GEDI became operational, it has collected billions of ~25 m diameter footprint
Authors
Pedro V. C. Oliveira, Xiaoyang Zhang, Birgit Peterson, Jean P. Ometto
Synthesis of larval lamprey responses to dewatering: State of the science, critical uncertainties, and management implications
ObjectiveDewatering of fine sediments in rivers and streams can kill many thousands of larval lampreys (order Petromyzontiformes) that are burrowed in these habitats. The larval life stage for lampreys lasts 3–10 years, and because larvae often aggregate in large numbers, negative impacts from dewatering could potentially deplete local populations and affect multiple year-classes. Larval lampreys
Authors
Theresa L. Liedtke, Julianne E. Harris, Monica R. Blanchard, Joseph J. Skalicky, Ann B. Grote
The Colorado River water crisis: Its origin and the future
During much of the 21st century, natural runoff in the Colorado River basin has declined, while consumption has remained relatively constant, leading to historically low reservoir storage. Between January 2000 and April 2023, the amount of water stored in Lake Mead and Lake Powell, the two largest reservoirs in the United States, declined by 33.5 million acre feet (41.3 billion cubic meters). As o
Authors
John C. Schmidt, Charles Yackulic, Eric Kuhn
Modeling the effects of large-scale interior headland restoration on tidal hydrodynamics and salinity transport in an open coast, marine-dominant estuary
The effects of large-scale interior headland restoration on tidal hydrodynamics and salinity transport in an open coast, marine dominant estuary (Grand Bay, Alabama, U.S.A) are investigated using a two-dimensional model, the Discontinuous-Galerkin Shallow Water Equations Model (DG-SWEM). Three restoration alternatives are simulated for present-day conditions, as well as under 0.5 m of sea level ri
Authors
Davina Passeri, Robert L. Jenkins, Autumn C. Poisson, Matthew V. Bilskie, Peter Bacopoulos
Is chemical control for crayfish in hatchery fish shipments practical?
Invasive crayfish (family Cambaridae) displace native crayfish species and alter aquatic habitat, community structure, and ecosystem function. We evaluated whether chemical control can be a reliable control agent for crayfish to ensure that shipments from fish hatcheries did not result in new infestations of invasive crayfish. A series of acute (≤1 h) toxicity tests were conducted to evaluate the
Authors
Ann Allert, Daniel J. Westrich, David W. Whites, Katrina Knott, Nathan Storts, Robert J. DiStefano
Late Pleistocene-Holocene age and stratigraphy of the Currituck Slide Complex, U.S. mid-Atlantic continental slope: Implications for landslide triggering
Considerable effort has been made to link submarine slope failures to changes in local and global-scale environmental conditions, in order to assess landslide hazard probability. Here we provide the first radiocarbon dates of hemipelagic sediment overlying mass transport deposits and inferred failure surfaces of the Currituck Slide Complex (CSC), a prominent landslide scar on the U.S. mid-Atlantic
Authors
Jason Chaytor, Uri S. ten Brink, Christopher D. P. Baxter