Article
Biodiversity Conservation
Justin Merondun, Elizabeth M. Kierepka, Aaron B. A. Shafer, Dennis L. Murray
Summary: The study found that the eastern wolf in south-central Canada faces competition threats from gray wolves and coyote-like canids, with limited advantageous niche space, requiring conservation measures to maintain the survival of the population. The research also suggests that competitive disadvantage can limit species' recovery efforts, hence necessitating management measures to promote ecological differentiation between groups.
BIOLOGICAL CONSERVATION
(2021)
Article
Environmental Studies
Peiheng Yu, Shujin Zhang, Esther H. K. Yung, Edwin H. W. Chan, Bo Luan, Yiyun Chen
Summary: Understanding the impact of urban compactness on ecosystem services is important for sustainable spatial planning. This study explored the effects of urban compactness on four ecosystem services in the Wuhan metropolitan area in China. The results showed that urban compactness has a negative correlation with food production, carbon storage, and habitat quality, but a positive correlation with recreation service. The geographically weighted regression model effectively identified spatial heterogeneity, while the multiscale geographically weighted regression model revealed local relationships and spatially non-stationary associations. The contributions of different urban compactness factors to ecosystem services varied considerably.
ENVIRONMENTAL IMPACT ASSESSMENT REVIEW
(2023)
Article
Ecology
Andrii Zaiats, Megan E. Cattau, David S. Pilliod, Rongsong Liu, Juan M. Requena-Mullor, T. Trevor Caughlin
Summary: This study develops a framework for forecasting post-wildfire regeneration of sagebrush cover in the Great Basin region of the Western US. The research demonstrates that accounting for wildfire and within-wildfire spatial heterogeneity improves the accuracy of recovery predictions.
Article
Environmental Sciences
Delphine B. H. Chabanne, Simon J. Allen, William Bruce Sherwin, Hugh Finn, Michael Krutzen
Summary: The study conducted on Indo-Pacific bottlenose dolphins in Perth found four behavioral communities with similar genetic structures but small differentiation due to related individuals within communities. The high levels of contemporary migration and related individuals among communities suggest a panmictic genetic population with continuous gene flow. Despite genetic similarity, each social community should be considered a distinct ecological unit for conservation due to exposure to different threats and occurrence in different habitats.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Computer Science, Interdisciplinary Applications
Estee Vermeulen-Miltz, Jai Kumar Clifford-Holmes, Ursula M. Scharler, Amanda T. Lombard
Summary: A healthy marine environment is crucial for ecosystem-based management and sustainable development in marine spatial planning. Algoa Bay in South Africa, with its diverse uses and interconnected marine system, serves as a case study for investigating future trajectories and feedback effects between marine uses and the environment. The Algoa Marine Systems Analysis Tool, developed using system dynamics modeling, demonstrates how cross-sectoral management interventions can achieve desirable long-term sustainability goals.
ENVIRONMENTAL MODELLING & SOFTWARE
(2023)
Article
Fisheries
Eric J. Ward, Lewis A. K. Barnett, Sean C. Anderson, Christian J. C. Commander, Timothy E. Essington
Summary: This article discusses the impact of non-stationary processes resulting from climate change and other drivers on ecological responses. By modeling the spatiotemporal variability in population structure, it is found that different species exhibit different spatial distribution trends.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Ecology
Laura M. Melroy, C. Sarah Cohen
Summary: Temporal genetic studies of low-dispersing organisms are rare, but this study of Leptasterias sea stars in central California provided insight into fine-scale population structure and changes in species distributions over time. The research revealed high potential for local adaptation in this species, constriction in the southern range limit of certain clades, and decrease in clade-specific abundance at previous prevalent sites. Additionally, a comparison between contemporary and historic samples highlighted significant differences in genetic diversity along the California coastline.
ECOLOGY AND EVOLUTION
(2021)
Article
Mechanics
M. Gelain, O. Gicquel, A. Couilleaux, R. Vicquelin
Summary: The direct numerical simulation of a non-equilibrium turbulent heat transfer case in a channel flow is conducted to identify the non-equilibrium effects and provide an understanding of them. The study reveals the existence of an inner region in the developing boundary layer where some quantities are at equilibrium while others exhibit distinct behaviors.
JOURNAL OF FLUID MECHANICS
(2022)
Article
Computer Science, Information Systems
Sheng Fang, Tongbao Mao, Boyu Hua, Yuan Ding, Maozhong Song, Qiangjun Zhou, Qiuming Zhu
Summary: This paper proposes a hardware generation method for spatial-temporal correlated non-stationary channel fading. By improving the CORDIC method and adopting efficient hardware operations, the algorithm latency and hardware consumption are reduced, achieving low relative error and hardware resource consumption.
Article
Ecology
Kyle L. Wilson, Alexandra C. Sawyer, Anna Potapova, Colin J. Bailey, Daniella LoScerbo, Elissa K. Sweeney-Bergen, Emma E. Hodgson, Kara J. Pitman, Karl M. Seitz, Lauren K. Law, Luke Warkentin, Samantha M. Wilson, William I. Atlas, Douglas C. Braun, Matthew R. Sloat, M. Tim Tinker, Jonathan W. Moore
Summary: Despite metapopulations having a spatial structure, they are often managed as a single population. This can overlook the fact that disturbances from human activities can disproportionately affect specific local populations. Scale transitions between local and regional processes can generate emergent properties where the recovery of the whole system is slower than expected. Through model simulations and case studies, it was found that the spatial structure of disturbances strongly influenced metapopulation recoveries, with unevenly impacting local populations leading to slower recoveries. Factors such as low dispersal, variable local demography, sparsely connected habitat networks, and spatially and temporally correlated stochastic processes dampened metapopulation recoveries. The role of spatial structure in metapopulation recoveries was illustrated through the recoveries of three endangered species, providing guidelines for resource managers and identifying research opportunities.
ECOLOGICAL APPLICATIONS
(2023)
Article
Evolutionary Biology
Tyler K. Chafin, Zachery D. Zbinden, Marlis R. Douglas, Bradley T. Martin, Christopher R. Middaugh, M. Cory Gray, Jennifer R. Ballard, Michael E. Douglas
Summary: Approximately 100 years ago, unregulated harvest nearly eliminated white-tailed deer from eastern North America, leading to wildlife management becoming a national priority. A study in Arkansas utilizing molecular tools found genetic signatures from historic translocations are apparent and geographic barriers now influence the distribution of contemporary ancestry in deer populations.
EVOLUTIONARY APPLICATIONS
(2021)
Article
Multidisciplinary Sciences
Pedro G. Nicolau, Rolf A. Ims, Sigrunn H. Sorbye, Nigel G. Yoccoz
Summary: Studies of spatial population synchrony are important for understanding ecological dynamics. Climate change has become a new focus in these studies, but the role of season-specific density dependence in shaping large-scale population synchrony has been overlooked. This study presents an analytical protocol that considers both season and geographic context-specific density dependence to better understand the sources of population synchrony. By analyzing time series of rodent populations, the study reveals that season-specific density dependence is a major component of population synchrony.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Ecology
Thomas Connor, Emilio Tripp, B. J. Saxon, Jessica Camarena, Jesse A. Goodwin, William T. Bean, Dan Sarna, Justin Brashares
Summary: Noninvasive data collection methods are increasingly used to monitor endangered or difficult to observe wildlife populations. This study integrated spatial capture-recapture and count-based statistical methods to maximize the use of single-season surveys. A Bayesian spatial, closed integrated population model (cIPM) was formulated to derive sex and age class-specific population estimates. The cIPM showed good accuracy in estimating most parameters, but the assignment of sex and age was biased. The results provide valuable information for wildlife management and research.
JOURNAL OF WILDLIFE MANAGEMENT
(2023)
Article
Mathematics, Applied
Roberto Gianni, Lorenzo Fusi, Angiolo Farina
Summary: This paper investigates the behavior of one-dimensional unsteady Poiseuille flow of a Herschel-Bulkley fluid driven by a prescribed pressure gradient. A mathematical model is formulated and the existence and uniqueness of a solution are proven.
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS
(2022)
Article
Mechanics
Ralph J. Volino, Michael P. Schultz
Summary: Measurements were conducted in rough-wall boundary layers subjected to different pressure gradients. The study compared the mean velocity and turbulence quantities profiles and velocity fields between rough- and smooth-wall cases. It was observed that there was outer layer similarity in favorable and zero pressure gradient regions, but significant differences occurred under adverse pressure gradients. The results indicate that similarity could be achieved in adverse pressure gradients by comparing smooth- and rough-wall cases with the same Clauser pressure gradient parameter history.
JOURNAL OF FLUID MECHANICS
(2023)
Article
Fisheries
Katelyn M. Bosley, Amy M. Schueller, Daniel R. Goethel, Dana H. Hanselman, Kari H. Fenske, Aaron M. Berger, Jonathan J. Deroba, Brian J. Langseth
Summary: Spatially stratified integrated population models can provide a realistic representation of population dynamics, with correct population structure specification being crucial for model performance. Flexible parameterization of movement rates and incorporation of tag-recapture data are important factors for accurate estimation in spatial IPMs.
FISH AND FISHERIES
(2022)
Article
Fisheries
Anna Rindorf, Mikael van Deurs, Daniel Howell, Eider Andonegi, Aaron Berger, Bjarte Bogstad, Noel Cadigan, Bjarki Thor Elvarsson, Niels Hintzen, Marie Savina Roland, Marc Taylor, Vanessa Trijoulet, Tobias van Kooten, Fan Zhang, Jeremy Collie
Summary: Accurate prediction of density dependence in productivity is crucial for effective fisheries management. This study examines the relationship between somatic growth, recruitment, and density in 80 stocks in the Northeast Atlantic, revealing significant density-dependent recruitment in the majority of stocks.
FISH AND FISHERIES
(2022)
Article
Environmental Sciences
Christopher Gardner, Daniel R. Goethel, Mandy Karnauskas, Matthew W. Smith, Larry Perruso, John F. Walter
Summary: By linking VMS data with high resolution habitat maps, researchers developed a fine-scale spatial map of red snapper exploitation in the Gulf of Mexico. Results showed that nearly half of the commercial red snapper landings were extracted from artificial structures, indicating the potential for localized depletion. Regional differences in fishing patterns were also observed, with a majority of landings from Florida coming from natural reefs while landings from other Gulf of Mexico states were mostly from artificial structures.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Fisheries
Erin C. Bohaboy, Daniel R. Goethel, Shannon L. Cass-Calay, I. I. I. William F. Patterson
Summary: This study developed a simulation framework to explore the combined effects of different measures on the performance measures of multi-sector marine fishery management. The simulation results indicated that reducing recreational discard mortality rate and implementing harvest slot regulations could have positive impacts on fishery management.
FISHERIES RESEARCH
(2022)
Review
Fisheries
Daniel R. Goethel, Kristen L. Omori, Andre E. Punt, Patrick D. Lynch, Aaron M. Berger, Carryn L. de Moor, Eva E. Plaganyi, Jason M. Cope, Natalie A. Dowling, Richard McGarvey, Ann L. Preece, James T. Thorson, Milani Chaloupka, Sarah Gaichas, Eric Gilman, Sybrand A. Hesp, Catherine Longo, Nan Yao, Richard D. Methot
Summary: Marine population modeling is an important research field that supports fisheries interventions. It has made recent advancements to address challenges like climate change and enduring issues such as data limitations. The review highlights the integration of various dimensions in fisheries models, facilitated by interdisciplinary research teams and improved data collection protocols. However, the implementation of model-based advice and sharing of confidential data remain challenges. The authors recommend participatory co-management approaches, wider inclusion of local knowledge and stakeholder input, and improved communication and engagement in fisheries management to make better informed decisions.
REVIEWS IN FISH BIOLOGY AND FISHERIES
(2023)
Article
Fisheries
Cathleen D. D. Vestfals, Kristin N. N. Marshall, Nick Tolimieri, Mary E. E. Hunsicker, Aaron M. M. Berger, Ian G. G. Taylor, Michael G. G. Jacox, Brendan D. D. Turley
Summary: Understanding environmental drivers of recruitment variability in marine fishes remains an important challenge. We developed a life-history model for Pacific hake to investigate the variables influencing their recruitment. Five variables explained 59% of the recruitment variability, including eddy kinetic energy, bifurcation index, herring biomass, alongshore transport, and storm events. Other predictors like upwelling strength, calm periods, and predation also played a role in recruitment variability. These findings highlight the complex mechanisms affecting Pacific hake recruitment.
FISHERIES OCEANOGRAPHY
(2023)
Article
Fisheries
Steven X. Cadrin, Daniel R. Goethel, Aaron Berger, Ernesto Jardim
Summary: The 'stock concept' in fisheries science follows theoretical assumptions of stock assessment models, which include limited movement across stock boundaries, uniform vital rates, and extensive mixing within stock areas. Best practices for representing population structure in stock assessment involve interdisciplinary stock identification, alignment of stock boundaries with population structure, spatially-explicit sampling and modeling, routine stock composition sampling and analysis, and simulation testing with uncertain population structure. Accurate representation of population structure is crucial for achieving fishery management objectives, and practical constraints should be addressed through iterative advances in stock identification, delineation, and assessment modeling.
FISHERIES RESEARCH
(2023)
Article
Environmental Sciences
Michelle M. M. McClure, Melissa A. A. Haltuch, Ellen Willis-Norton, David D. D. Huff, Elliott L. L. Hazen, Lisa G. G. Crozier, Michael G. G. Jacox, Mark W. W. Nelson, Kelly S. S. Andrews, Lewis A. K. Barnett, Aaron M. M. Berger, Sabrina Beyer, Joe Bizzarro, David Boughton, Jason M. M. Cope, Mark Carr, Heidi Dewar, Edward Dick, Emmanis Dorval, Jason Dunham, Vladlena Gertseva, Correigh M. M. Greene, Richard G. G. Gustafson, Owen S. S. Hamel, Chris J. J. Harvey, Mark J. J. Henderson, Chris E. E. Jordan, Isaac C. C. Kaplan, Steven T. T. Lindley, Nathan J. J. Mantua, Sean E. E. Matson, Melissa H. H. Monk, Peter Moyle, Colin Nicol, John Pohl, Ryan R. R. Rykaczewski, Jameal F. F. Samhouri, Susan Sogard, Nick Tolimieri, John Wallace, Chantel Wetzel, Steven J. J. Bograd
Summary: Understanding the response of species to climate change is essential for predicting changes in marine ecosystems and developing adaptation strategies.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Fisheries
Daniel R. Goethel, Aaron M. Berger, Steven X. Cadrin
Summary: Spatial population structure is rarely considered in stock assessment models, despite being essential for marine populations. The lack of guidance on choosing suitable spatial modeling frameworks hinders the utilization of spatial assessments in management decision-making. This review provides multiple options for parameterizing population structure, offers guidance on developing spatial assessment models for management procedures, and suggests a pragmatic approach for selecting an appropriate spatial assessment model. It emphasizes the need to match assessment units with interdisciplinary stock identification, adequately represent spatial structure, model multiple interacting population units, and prevent local depletion of spawning populations.
FISHERIES RESEARCH
(2023)
Article
Environmental Sciences
Derek G. Bolser, Aaron M. Berger, Dezhang Chu, Steve de Blois, John Pohl, Rebecca E. Thomas, John Wallace, Jim Hastie, Julia Clemons, Lorenzo Ciannelli
Summary: This study used acoustic data collected by uncrewed surface vessels (USVs) to conduct fisheries stock assessments. The study found that resolving acoustic backscatter with real-time biological composition data is a limiting factor. To address this limitation, the study estimated age class compositions using fishery-dependent and non-target fishery-independent data, and compared the estimates with traditional survey methods (acoustic-trawl survey). The results showed that the estimated age class compositions can provide accurate biomass estimates in data-rich areas, but the errors are larger across the entire survey area.
FRONTIERS IN MARINE SCIENCE
(2023)