Article
Biodiversity Conservation
Ashish Kumar Panda, Suyash Katdare, Saurav Gawan, Surya Prasad Sharma, Ruchi Badola, Syed Ainul Hussain
Summary: Gharials, the last surviving crocodilian species in the genus Gavialis, are endemic to the Indian subcontinent. Their population has decreased significantly due to habitat degradation, poaching, and fishing, but has been recovering since conservation efforts were launched in the mid-1970s.
GLOBAL ECOLOGY AND CONSERVATION
(2023)
Article
Environmental Sciences
Houlang Duan, Xiubo Yu
Summary: This study evaluated the historical changes in habitat quality and connectivity for migratory shorebirds in the Yellow River Delta using various analyses. The results showed a significant decrease in habitat connectivity due to land reclamation, with high-quality areas being converted to industrial and mariculture sites. Additionally, important habitat patches were converted to non-habitat or low-importance habitat patches. The study recommends expanding the boundaries of the national nature reserve to protect these unprotected areas.
Article
Environmental Sciences
Robert Stryjecki, Vladimir Pesic, Agnieszka Szlauer-Lukaszewska, Grzegorz Michonski, Aleksandra Bankowska, Joanna Pakulnicka, Ewa Filip, Iga Lewin, Tapas Chatterjee, Andrzej Zawal
Summary: Assessments of aquatic environment quality in the European Union are mandatory and biological methods are supplemented with hydromorphological assessments. This study conducted research in the River Krapiel in Poland and found that water mites are suitable bioindicators of the environment, with the hydromorphological characteristics of habitats explaining the nature of water mite communities. However, the distribution of water mite fauna in river ecosystems and characteristics at a smaller spatial scale better explain water mite community structure than the hydromorphological indices.
Article
Ecology
Maria Alp, Celine Le Pichon
Summary: This study investigates estuarine habitat and connectivity dynamics using landscape ecology tools, focusing on juvenile seabass as an example. It shows that tidal water level variation can create temporary bottlenecks for juvenile seabass movement, with fish mobility appearing as a determinant for vulnerability to these disruptions. The approach allows for quantitative assessment and visualization of riverscape complexity related to tidal dynamics, with implications for conservation and management planning in other highly dynamic ecosystems.
Article
Ecology
Julia Martinez Pardo, Santiago Saura, Ariel Insaurralde, Mario S. Di Bitetti, Agustin Paviolo, Carlos De Angelo
Summary: This study analyzed the trend of jaguar habitat connectivity in the Upper Paraná Atlantic Forest, finding a decrease in connectivity throughout the entire study period, with a loss of up to 93%. Changes in forest patch configuration and loss of forest area were the main drivers of this trend, while decreased matrix permeability also played a significant role. The connectivity trends for the three countries in the study area were negative, with Paraguay and Brazil experiencing the highest forest decline compared to Argentina.
Article
Ecology
Ravi Jambhekar, Kavita Isvaran
Summary: A fundamental question in ecology is to understand how species are distributed in a landscape. This study investigated the population responses of butterfly species to patch size and connectivity in naturally heterogeneous tropical forest-grassland complexes, and found that ecological specialization and matrix resistance played important roles in predicting population responses.
Article
Ecology
Mara S. Zimmerman, John J. Winkowski
Summary: The study focused on the mainstem river of Chehalis River above and below a potential dam, describing spatial patterns of fish species, physical habitat, and stream temperature. Most of the variation in fish species composition was found at the sub-basin scale, with additional minor patterns at the reach scale.
Article
Ecology
Boyu Gao, Peng Gong, Wenyuan Zhang, Jun Yang, Yali Si
Summary: Habitat and landscape matrices jointly affect waterbird diversity, with well-connected grassland and shrub areas surrounded by isolated developed areas maintaining higher diversity at fine scales, and regular-shaped developed areas and various other landscape features positively affecting diversity at coarse scales. Conservation efforts should focus on both habitat quality and landscape connectivity to protect biodiversity in human-dominated landscapes.
Editorial Material
Ecology
James Watling, J. Nicolas Urbina-Cardona
Summary: This study conducted a keyword search to sample landscape ecology research published in Biotropica between 2016 and mid-2021. From the 112 studies returned, 14 papers were selected for a virtual special issue, highlighting notable trends and suggesting future research directions in landscape ecology.
Article
Marine & Freshwater Biology
V. N. Podshivalina
Summary: The spatial distribution of zooplankton communities in part of the Volga River is influenced by hydrological conditions, with littoral communities from different parts being more similar to each other than with pelagic ones. In the river mouth zone of the tributary, the ecotone effect is manifested as fauna mixing, rather than an increase in species richness. Variations in the community structure are mainly determined by depth and water temperature.
INLAND WATER BIOLOGY
(2021)
Article
Computer Science, Hardware & Architecture
B. Janardhana Rao, Y. Chakrapani, S. Srinivas Kumar
Summary: This paper introduces a novel deep learning concept for video inpainting, utilizing motion tracking, RNN classification, and texture feature methods. By combining cuckoo search algorithm and MVO, the proposed algorithm's reliability is verified through experimental results.
Proceedings Paper
Asian Studies
Carla Biagioli
Summary: Studies in the environmental archaeology of the mountains of Central and South Asia focus on exploring the river valleys in the Hindu Kush, Karakorum, and Himalayas as channels for the exchange of agricultural practices and technical knowledge. This study specifically looks at the Swat Valley in Pakistan, comparing it to the Almora-Kumaon valley in India and the Kashmir valley. These valleys, located between 800 and 2500 meters above sea level, have an alpine landscape and are rich in natural resources, making them suitable for settlements, agriculture, and the development of urban centers. The investigation focuses on the contemporary landscape and habitat changes and the adaptation of communities to their environment.
TWELFTH INTERNATIONAL CONVENTION OF ASIA SCHOLARS (ICAS 12)
(2022)
Article
Ecology
Bradley W. Kalb, Brock M. Huntsman, Colleen A. Caldwell, Michael A. Bozek
ENVIRONMENTAL BIOLOGY OF FISHES
(2018)
Article
Multidisciplinary Sciences
Brock M. Huntsman, Jeffrey A. Falke, James W. Savereide, Katrina E. Bennett
Article
Fisheries
Brock M. Huntsman, Roy W. Martin, Kirk A. Patten
TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY
(2018)
Article
Ecology
Brock M. Huntsman, Jeffrey A. Falke
FRESHWATER BIOLOGY
(2019)
Article
Ecology
Brock M. Huntsman, Michael P. Venarsky, Fitsum Abadi, Alexander D. Huryn, Bernard R. Kuhajda, Christian L. Cox, Jonathan P. Benstead
EVOLUTIONARY ECOLOGY
(2020)
Article
Fisheries
Brock M. Huntsman, Abigail J. Lynch, Colleen A. Caldwell, Fitsum Abadi
Summary: The study found that Rio Grande cutthroat trout reach maturity fastest in warm streams with low densities. While there was a decrease in apparent survival of mature trout as stream temperature increased, no strong relationship was found between discharge and any demographic rate. Plasticity in trait expression may help trailing edge populations like RGCT persist in a changing climate.
ECOLOGY OF FRESHWATER FISH
(2021)
Article
Fisheries
Brock M. Huntsman, Hae Kim, Quinton Phelps, J. Todd Petty
NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
(2020)
Article
Fisheries
Brock M. Huntsman, Frederick Feyrer, Matthew J. Young, James A. Hobbs, Shawn Acuna, Joseph E. Kirsch, Brian Mahardja, Swee Teh
Summary: In tidal lakes of California's Sacramento-San Joaquin Delta, largemouth bass recruitment dynamics are influenced by factors such as growth, nutrition, and overwinter starvation. However, habitat characteristics, such as submerged aquatic vegetation, rather than overwinter mortality, shape the population structure of largemouth bass in this region.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2021)
Article
Fisheries
Brock M. Huntsman, Abigail J. Lynch, Colleen A. Caldwell
Summary: The study found that temperature and density interacted with life stage to affect growth rates in Rio Grande Cutthroat Trout populations, with negative density-dependent effects detected for immature individuals under warm stream temperatures. Competition was found to have the greatest impact on immature individuals, particularly under warm temperatures. The complex interactions of density-dependent and density-independent effects suggest that warming trends associated with climate change could exacerbate the negative consequences for Rio Grande Cutthroat Trout populations.
TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY
(2021)
Article
Fisheries
Brock M. Huntsman, Larry R. Brown, Kai Palenscar, Chris Jones, Kerwin Russell, Heather Dyer, Brett Mills, Marissa Wulff, Jason May
Summary: Accurate abundance estimates are crucial for effective fish conservation decision-making. Integrating multiple sampling methods and datasets, while considering among-species correlations, can improve the accuracy of fish distribution estimation and reveal patterns of native fish declines associated with the growth of non-native fish populations.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2022)
Article
Ecology
Brock M. Huntsman, Eric R. Merriam, Christopher T. Rota, J. Todd Petty
Summary: The success of stream restoration is difficult to define due to the complex interactions of abiotic and biotic factors. This study found that habitat restoration in invaded landscapes can benefit both native and non-native fish species. However, the positive effects of restoration on native fish were only observed when non-native competitors were absent.
RESTORATION ECOLOGY
(2023)
Article
Fisheries
Brock M. Huntsman, Lauren Flynn, Colleen A. Caldwell, Abigail J. Lynch, Fitsum Abadi
Summary: Environmental stressors associated with climate change and non-native fish pose significant threats to the conservation of native fish. These risks are exacerbated when these conditions interact at the trailing edge of a population's distribution. In this study, we collected capture-mark-recapture data for Rio Grande cutthroat trout (RGCT) and found that the interaction between non-native trout and total trout density had the strongest impact on RGCT apparent survival rates. Our results support previous findings that non-native salmonids negatively affect survival rates in native trout populations. Furthermore, we observed a negative density effect on RGCT and sympatric brown trout apparent survival, suggesting that higher density populations of RGCT might be more resilient to displacement by non-native trout.
ECOLOGY OF FRESHWATER FISH
(2023)
Article
Ecology
Brock M. M. Huntsman, Matthew J. J. Young, Frederick V. V. Feyrer, Paul R. R. Stumpner, Larry R. R. Brown, Jon R. R. Burau
Summary: Terminal channels were historically common but have become rare due to landscape modifications. Tidal hydrodynamics shape fish communities in these ecosystems, but there is limited research on their relationship.
Article
Ecology
Michael P. Venarsky, Jonathan P. Benstead, Alexander D. Huryn, Brock M. Huntsman, Jennifer W. Edmonds, Robert H. Findlay, J. Bruce Wallace