Article
Water Resources
Farhad Bahmanpouri, Donatella Termini, Silvia Barbetta, Marco Dionigi, Tommaso Moramarco
Summary: In this study, the significance of hydraulic complexity metrics M-1 and M-2 in habitat assessment is analyzed using laboratory data and field observations along the Tiber River in Italy. The estimated parameters from laboratory data help characterize high/low-velocity areas. Field observations show that larger values of M-1 are associated with zones of large changes in flow velocity cross-sections. Larger values of M-2 are observed at the left bank of the channel, indicating locations with higher kinetic energy consumption for aquatic organisms. These findings are important for quantifying biologically significant flow patterns at different spatial scales and flow conditions.
HYDROLOGY RESEARCH
(2023)
Article
Ecology
Kenneth G. Larrieu, Gregory B. Pasternack
Summary: This study used a novel algorithm to predict fish stranding risk at a river rehabilitation site in California, highlighting the sensitivity of stranding events to side-channel topographic structure and postproject morphodynamic change. Even with moderate flows, side-channel exits tend to close off by bars built across them via bedload transport, which has implications for river management practices and river rehabilitation project design.
Article
Environmental Sciences
Stefan Gronsdahl, Dan McParland, Brett Eaton, R. Dan Moore, Jordan Rosenfeld
Summary: The geomorphic instream-flow tool GIFT shows satisfactory performance in simulating hydraulic habitat in several rivers in western North America, but further testing and validation are needed before its widespread application.
RIVER RESEARCH AND APPLICATIONS
(2021)
Article
Environmental Sciences
Mohammad Ahmadi, Amir Ghaderi, Hossein MohammadNezhad, Alban Kuriqi, Silvia Di Francesco
Summary: The study aimed to propose a new configuration of vertical slot fishway (VSF) to allow the passage of different fish species under frequent variations of flow discharge. Numerical investigations of novel VSF configurations demonstrated that smaller angles between baffles can increase the maximum velocity (Vmax) and decrease the maximum turbulent kinetic energy (TKEmax), while changes in pool width have a significant impact on Vmax.
Article
Ecology
Griffin Srednick, Alyssa Cohen, Olivia Diehl, Kaela Tyler, Stephen E. Swearer
Summary: Understanding spatiotemporal variation in species abundance is crucial for understanding ecosystem resilience. This study investigates how habitat attributes mediate the effects of herbivory on tropical marine macroalgal communities and influence community assembly at different scales. The results show that reduced accessibility and detectability of habitat attributes can lead to variable trajectories and community structures in algal communities. This suggests that habitat attributes play a significant role in consumer-resource interactions, which ultimately affect species diversity, succession, and stability in algal metacommunities.
Editorial Material
Geography, Physical
Ronald E. Poeppl, Lina E. Polvi, Laura Turnbull
Summary: In the field of geomorphology, the concept of connectivity has become important for understanding the movement of water and sediment in landscapes. Recent conferences and discussions have provided a platform for researchers to exchange ideas on connectivity in geomorphology. This article summarizes the findings from a collection of research articles on the application of connectivity in various environments and scales, as well as the role of human impacts and management in rivers and catchments.
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)
Article
Ecology
Maxime Morel, Herve Pella, Flora Branger, Eric Sauquet, Gael Grenouillet, Jessica Cote, Isabelle Braud, Nicolas Lamouroux
Summary: Approaches for estimating the ecological impacts of climate change on aquatic communities range from local mechanistic models to global correlative models. We propose an original application of hydraulic habitat models (HABMs) at large scales, compare their predictions with species distribution models (SDMs), and link the two approaches. Our results show the importance of accounting for proximate habitat variables in climate change projections.
Article
Chemistry, Analytical
Christopher Tomsett, Julian Leyland
Summary: The presence of vegetation can lead to large errors when using UAV systems and camera sensors with SfM techniques to derive 3D models of fluvial systems. Laser scanning techniques are a suitable alternative for identifying bare earth and vegetation with high accuracy and repeatability, making them ideal for future eco-geomorphic research.
Article
Geography, Physical
Manudeo Singh, R. Sinha, S. K. Tandon
Summary: Geomorphic processes operate at multiple spatio-temporal scales, and understanding the linkages of landscapes across various scales is crucial for insights into their interactions and feedbacks. Connectivity emerges as a unifying concept in geomorphology, with the potential for extensive application in diverse hydro-geomorphic systems in India. Studies on connectivity in the geomorphic context have been steadily growing in India, providing important developments and applications for effective management practices.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Geography, Physical
Francisco Pena, Fernando Nardi, Assefa Melesse, Jayantha Obeysekera
Summary: River valleys are important ecosystems shaped by inundation dynamics for flood attenuation. Topographic and bathymetric surveys are crucial for accurate floodplain studies, but economic and technical limitations may hinder their availability in some regions. This study evaluates the effectiveness of characterizing fluvial morphology using geomorphic methods, supporting their application in large-scale inundation modelling studies.
Review
Agriculture, Dairy & Animal Science
Cristiano Schetini de Azevedo, Cynthia Fernandes Cipreste, Cristiane Schilbach Pizzutto, Robert John Young
Summary: Habitat complexity is crucial for the welfare of captive animals, particularly in zoos. Greater enclosure complexity leads to a wider range of behaviors and improved physiological wellbeing. However, the benefits of habitat complexity should be specific to each species, as not all species would benefit. Therefore, it is important to provide and regularly evaluate habitat complexity for zoo animals. Complexity can change over time and space. This paper discusses how habitat complexity positively affects animal welfare and offers ideas on introducing habitat complexity and functional structures for captive animals.
Article
Environmental Sciences
Sebastien Erpicum, Vasileios Kitsikoudis, Pierre Archambeau, Benjamin Dewals, Michel Pirotton
Summary: The construction of dams and weirs disrupt fish migration and threaten aquatic biodiversity. Fish passages aim to restore river connectivity, but designing effective fish passages is challenging. This study investigated how the characteristics of a trash rack at the entrance of a fish passage affect fish behavior and the passage's effectiveness. The results showed that a trash rack acts as an obstacle to fish passing through the downstream passage, and it should be avoided if possible.
Review
Ecology
Kenneth G. Larrieu, Gregory B. Pasternack, Sebastian Schwindt
Summary: The issue of riverine fish stranding poses a significant concern for fish populations, and accurately parameterizing stranding risks is challenging due to various biotic and abiotic factors. A novel algorithm utilizing graph theory to find optimal fish escape routes has been introduced for evaluating and visualizing fish stranding risks in rivers.
Article
Ecology
Loren W. Stearman, Jacob F. Schaefer
Summary: Human activities have affected sediment dynamics in rivers, leading to degradation of aquatic habitats. Traditional research on fish-sediment interactions focuses on excessive fine sediments as indicators of habitat and water quality degradation, while geomorphologists believe that altered sediment dynamics have broader and more complex impacts on channel morphology and stream habitats. This study uses an interdisciplinary approach to examine how altered sediment dynamics have affected the evolution of stream fish communities in the Bayou Pierre, Mississippi, USA.
FRESHWATER BIOLOGY
(2023)
Article
Biodiversity Conservation
Xiyan Yang, Shanghong Zhang, Wenda Li, Caihong Tang, Jin Zhang, Sebastian Schwindt, Silke Wieprecht, Taiwei Wang
Summary: This study assesses the impacts of a dam and spur dikes on fish hydraulic habitat conditions. The results show that the dam alone negatively impacts fish habitat, while the spur dikes have positive effects. The combination of spur dikes and a dam results in better outcomes regarding hydraulic habitat conditions.
ECOLOGICAL INDICATORS
(2022)
Review
Environmental Sciences
Sophie Comer-Warner, Julia L. A. Knapp, Phillip Blaen, Megan Klaar, Felicity Shelley, Jay Zarnetske, Joseph Lee-Cullin, Silvia Folegot, Marie Kurz, Jorg Lewandowski, Judson Harvey, Adam Ward, Clara Mendoza-Lera, Sami Ullah, Thibault Datry, Nicholas Kettridge, Daren Gooddy, Jennifer Drummond, Eugenia Marti, Alexander Milner, David Hannah, Stefan Krause
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Megan J. Klaar, Felicity S. Shelley, David M. Hannah, Stefan Krause
RIVER RESEARCH AND APPLICATIONS
(2020)
Article
Environmental Sciences
Megan J. Klaar, Stephen Carver, Paul Kay
WILEY INTERDISCIPLINARY REVIEWS-WATER
(2020)
Article
Geography, Physical
Lawrence J. B. Eagle, Jonathan L. Carrivick, Alexander M. Milner, Lee E. Brown, Megan J. Klaar
Summary: Climate change is impacting glacier cover and precipitation-driven floods worldwide. Repeated high flows from precipitation can lead to significant changes in river channel morphology, particularly in recently deglaciated areas. Understanding the effects of high flows on river channel morphology and resources is crucial for effective management in changing environments.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Engineering, Civil
Silvano Fortunato Dal Sasso, Alonso Pizarro, Sophie Pearce, Ian Maddock, Salvatore Manfreda
Summary: Image-based approaches for surface velocity estimations are increasingly popular, but require prior identification of parameter settings based on local conditions and cannot be fully automated for continuous monitoring. The seeding distribution index (SDI) improves image velocimetry performance and reduces errors, especially when optimization is applied at sub-sector scales.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Maria Lathouri, Judy England, Michael J. Dunbar, David M. Hannah, Megan Klaar
Summary: The study explored macroinvertebrate sensitivity to river flow alteration to establish quantitative relationships between biological indicators and hydrological pressures. Results indicated that a physically derived river type approach was a better predictor of macroinvertebrate response, with intermediate sized lowland streams displaying the best model fit.
WATER AND ENVIRONMENT JOURNAL
(2021)
Article
Environmental Sciences
Victoria S. Milner, Ian P. Maddock, Iwan Jones, George C. Bunting
Summary: The deposition of excess fine sediment affects macroinvertebrate drift and community dynamics, with higher sediment concentrations causing rapid responses in drifting macroinvertebrates. Sediment characteristics play a role in ecological impairment, but do not affect macroinvertebrate behavioral responses to the fine sediment pulse as expected.
Article
Ecology
Lawrence J. B. Eagle, Alexander M. Milner, Megan J. Klaar, Jonathan L. Carrivick, Martin Wilkes, Lee E. Brown
Summary: The study applied multidimensional analysis of community stability to a time series of macroinvertebrate dynamics in a southeast Alaskan river. It found that after extreme flood events, the correlations between stability components decreased and significant changes to the form of stability were observed. This suggests that there are significant shifts in stability processes following disturbances.
JOURNAL OF ANIMAL ECOLOGY
(2021)
Article
Environmental Sciences
Ho Wen Lo, Mark Smith, Megan Klaar, Clare Woulds
Summary: The use of in-stream wood as a natural flood management technique has been effective in reducing flood risks, but its additional effects on natural processes remain unexplored. Different types of NFM wood structures may induce similar geomorphic effects, such as pool formation, clast accumulation, and buffering against stream bed coarsening.
WILEY INTERDISCIPLINARY REVIEWS-WATER
(2021)
Article
Water Resources
Adam S. Ward, Aaron Packman, Susana Bernal, Nicolai Brekenfeld, Jen Drummond, Emily Graham, David M. Hannah, Megan Klaar, Stefan Krause, Marie Kurz, Angang Li, Anna Lupon, Feng Mao, M. Eugenia Marti Roca, Valerie Ouellet, Todd Royer, James C. Stegen, Jay P. Zarnetske
Summary: A unified conceptual framework for river corridors requires synthesis of diverse site-, method- and discipline-specific findings. In this study, an inductive approach using machine learning was used to identify potential relationships in river corridor observations. The approach generated numerous previously uninvestigated relationships and highlighted novel research questions.
HYDROLOGICAL PROCESSES
(2022)
Article
Environmental Sciences
Ho Wen Lo, Zora van Leeuwen, Megan Klaar, Clare Woulds, Mark Smith
Summary: This study assessed the geomorphic effects of Natural Flood Management (NFM) woody dams using a Before-After Control-Impact (BACI) design. The results showed that these dams promoted instream habitat diversity but their impact on bank erosion and sediment deposition was unclear.
RIVER RESEARCH AND APPLICATIONS
(2022)
Article
Environmental Sciences
Hong Fu, Jun Xu, Huan Zhang, Jorge Garcia Molinos, Min Zhang, Megan Klaar, Lee E. Brown
Summary: Understanding the response of abiotic and biotic components to aquatic ecosystem restoration is crucial for sustainable development in the face of economic growth and global environmental change. However, post-restoration monitoring and evaluation of aquatic ecosystems are lacking in funding and documentation, particularly outside of Europe and North America. This study presents a meta-analysis of abiotic and biotic indices in aquatic restoration projects in mainland China, revealing rapid decreases in dissolved nutrients post-restoration but slower recovery times for biodiversity indices. The findings emphasize the importance of long-term monitoring and considering different timelines and processes for restoration targets and programs.
ENVIRONMENTAL POLLUTION
(2023)
Article
Water Resources
Stephanie Bond, Thomas Willis, Jean Johnston, Alistair Crowle, Megan J. Klaar, Mike J. Kirkby, Joseph Holden
Summary: With increasing frequency and intensity of storm events due to climate change, understanding the influence of season and management on flood peaks is crucial. This study modelled the influence of season and grassland management on flood peak timing and magnitude in two catchments in northern England. Results showed that seasonal changes in vegetation had a modest impact on flood peaks, while grassland management scenarios had a substantial effect. The study highlights the importance of considering both seasonality and management practices in natural flood management strategies.
HYDROLOGICAL PROCESSES
(2022)
Article
Water Resources
Lorna Kingsbury-Smith, Thomas Willis, Mark Smith, Helene Boisgontier, Daniel Turner, Jack Hirst, Michael Kirkby, Megan Klaar
Summary: Natural flood management (NFM) is a catchment-based approach for reducing flood risk. This study uses fieldwork, laboratory analysis, and modeling to quantify the impact of land use management changes on catchment flood hazard. The findings support the implementation of NFM interventions as a means of reducing flood hazard within a rural upland catchment.
HYDROLOGICAL PROCESSES
(2023)
Article
Geosciences, Multidisciplinary
Matthew T. Perks, Silvano Fortunato Dal Sasso, Alexandre Hauet, Elizabeth Jamieson, Jerome Le Coz, Sophie Pearce, Salvador Pena-Haro, Alonso Pizarro, Dariia Strelnikova, Flavia Tauro, James Bomhof, Salvatore Grimaldi, Alain Goulet, Borbala Hortobagyi, Magali Jodeau, Sabine Kaefer, Robert Ljubicic, Ian Maddock, Peter Mayr, Gernot Paulus, Lionel Penard, Leigh Sinclair, Salvatore Manfreda
EARTH SYSTEM SCIENCE DATA
(2020)
Article
Geography, Physical
A. Securo, C. Del Gobbo, L. Rettig, S. Pillon, A. De Luca, D. Fontana, E. Benedetti Fasil, R. R. Colucci
Summary: Small glaciers in temperate mountain regions have experienced significant reduction and unprecedented melt rates in recent years. Some glaciers have transitioned from clean ice to debris-covered or even rock glaciers. This study examines the surface elevation change of the Popera Alto glacier in the Sesto Dolomites using LiDAR and Structure from Motion surveys, and analyzes its evolution in terms of surface cover and geomorphic processes. The glacier has lost an average of 0.35 m water equivalent per year over the past 16 years, with active modification of its surface cover by geomorphic processes. The role of debris and local topography feedback has allowed the resilience of the glacier, leading to a marked difference between the current environmental equilibrium line altitude (envELA) and the effective ELA (effELA) of the glacier.
Article
Geography, Physical
Zhenzhen Yan, Yaolin Shi, Lili Kang, Xiangtao Fan
Summary: This study proposes a quantitative regional deformation model based on global positioning system (GPS) data to quantitatively analyze the morphological evolution of rivers in the Three Rivers Region. It finds that tectonic deformation phases significantly control regional landscape development and drainage features.
Article
Geography, Physical
Said Mukhtar Ahmad, Nitheshnirmal Sadhasivam, Mona Lisa, Luigi Lombardo, Mustafa Kemal Emil, Amira Zaki, Cees J. Van Westen, Islam Fadel, Hakan Tanyas
Summary: In this study, we investigated a large slow-moving landslide in Northern Pakistan, using Interferometric Synthetic Aperture Radar (InSAR) analysis. Our results showed that the crown of the landslide is moving faster than the surrounding regions, while the footslope experienced high deformations. We discussed the possible roles of meteorologic and anthropogenic factors in causing these deformations.
Article
Geography, Physical
Shuang Bian, Xibin Tan, Yiduo Liu, Suoya Fan, Junfeng Gong, Chao Zhou, Feng Shi, Michael A. Murphy
Summary: The Yarlung River's drainage divide is primarily moving north due to variations in precipitation across the Himalayas. The Gangdese drainage divide shows predominantly northward and southward migration, controlled by base-level rise and downstream influences. The presence of north-trending rifts separates the drainage divides into five zones, each with a distinct migration pattern.
Article
Geography, Physical
Joon-Young Park, Seok Yoon, Deuk-Hwan Lee, Seung-Rae Lee, Hwan-Hui Lim
Summary: This study developed a multiple-regression model to estimate site-specific average growth rates of debris flow events. The proposed model was validated through a case study and showed reasonable predictions of debris flow velocities and heights.
Article
Geography, Physical
Nicholas Reilly Mccarroll, Arnaud Temme
Summary: New geochronological data from hillslope boulder armor in the Flint Hills reveal the rates and timing of lateral retreat in the landscape. Surfaces of limestone boulders dating back to the Pleistocene era were found, and the ages of the hillslope armor increased with distance from the limestone bench. The estimated rate of lateral retreat in this landscape is 0.02 mm/yr.
Article
Geography, Physical
Xinbo Yao, Yuntao Tian
Summary: By studying the Longmenshan-Minshan drainage divide, we found that it has reached a dynamic steady state, indicating a balance between erosion and rock uplift. This study also reveals the process of formation and evolution of the divide and raises questions about the effectiveness of divide migration metrics.
Article
Geography, Physical
Junhui Yu, Pin Yan, Yanlin Wang, Guangjian Zhong, Changliang Chen
Summary: The seafloor mounds in the Chaoshan Depression of the South China Sea are identified as mud volcanoes, with fluids coming from underlying mud-fluid diapirs. The hydrocarbon gases feeding the mud volcanoes and diapirs are reasoned to originate from deep Mesozoic source rocks, indicating significant Mesozoic hydrocarbon potential in the Chaoshan Depression.
Article
Geography, Physical
Marius Huber, Luc Scholtes, Jerome Lave
Summary: This paper investigates the relationships between hillslope stability and fabric anisotropy of brittle rock materials and the implications for landscape shaping. It explores the different stability modes and movement characteristics of anisotropic materials, and demonstrates the significant control of material anisotropy on landscape shaping.
Article
Geography, Physical
Shubhra Sharma, Anil D. Shukla
Summary: The study investigates the relationship between glacial dynamics and lake sedimentation during the mid-Holocene climate variability in the Southern Zanskar ranges. It utilizes geomorphological disposition, elemental geochemistry, and optical chronology of relict lake sediment to reconstruct the pattern of minor glacier responses to climate variability. The results indicate six centennial to millennial-scale climatic phases, with warmer phases represented by decreased mineralogical fine grain flux and increased coarse grain flux. The study highlights the potential of relict lake sediment and para/peri-glacial landforms in understanding glacial dynamics and climate change during the Holocene.
Article
Geography, Physical
Jean-Francois Bernier, Sydney W. Meury, Patrick Lajeunesse
Summary: In this study, an approach combining various data and observation methods was proposed to improve the monitoring of landfast ice dynamics and its geomorphic impact on sedimentary systems. The results demonstrate the ability of the approach to accurately measure interannual variations in landfast ice and constrain geomorphic changes. Additionally, the study found a strong relationship between the severity of freezing seasons and the response of landfast ice to hydrometeorological events, with different geomorphic responses observed under different winter conditions.
Article
Geography, Physical
Heping Shu, Fanyu Zhang
Summary: This study investigates the relationship between susceptibility of soil-water hazards and human activities, geoheritage sites in the Loess Plateau, China. Landslide and gully erosion susceptibility were obtained using gradient boosting and support vector machines, and a hazard matrix was formed to couple landslide and gully erosion susceptibility. The study found different trends in the magnification times of soil-water hazards chain under different scenarios.
Article
Geography, Physical
Guangqiang Qian, Zhuanling Yang, Xuegang Xing, Zhibao Dong, Youyuan Guo
Summary: Granule ripples are aeolian landforms armored against erosion by coarse grains. This study investigates their seasonal morphological evolution and migration in the Sanlongsha Dune Field. The findings show that wind events, especially those exceeding the threshold velocities of coarse grains, significantly influence the morphodynamics of granule ripples. The study highlights the importance of considering the reptation and saltation of coarse grains in future research on granule ripples.
