Article
Agriculture, Dairy & Animal Science
Diana Ioana Olah, Emoke Pall, Constantin Cerbu, Sergiu Dan Zablau, Gheorghita Duca, Monica Ioana Suatean, Adrian Valentin Potarniche, Aurel Vasiu, Marina Spinu
Summary: Due to habitat destruction and other factors, the Eurasian red squirrel is at the brink of extinction. Studying the differences in microbiota between captive and wild squirrels can help improve the survival rate of reintroduced specimens and address infectious diseases. The study found no significant differences in the aerobic microbiota diversity and quantity between living environments.
Article
Genetics & Heredity
Osman Ibis, Ahmet Yesari Selcuk, Saffet Teber, Mehmet Baran, Alaettin Kaya, Servet Ozcan, Haluk Kefelioglu, Coskun Tez
Summary: This study successfully sequenced the complete mitochondrial genomes of Turkish tree squirrels for the first time and used phylogenetic analysis to reveal the mitochondrial characteristics and internal phylogenetic relationships of Sciurus. The study found that S. anomalus is the most basal taxon in the Sciurini tribe, with at least five mitochondrial genome lineages.
Article
Forestry
Frank Baffour-Ata, Philip Antwi-Agyei, Elias Nkiaka
Summary: Climate variability and land use changes have led to significant changes in forest reserves in Ghana, affecting rural livelihoods. Local people have perceived changes in rainfall and temperature patterns, which are supported by historical data. The study found a significant transformation of forest cover types in the Bobiri forest reserve over a 28-year period, partly due to erratic rainfall patterns and other factors such as logging and population growth.
Article
Limnology
Pierre Marrec, Heather McNair, Gayantonia Franze, Francoise Morison, Jacob P. Strock, Susanne Menden-Deuer
Summary: This study analyzed data from winter and summer cruises as part of the Northeast U.S. Shelf Long-Term Ecological Research program and found that coastal waters had higher phytoplankton biomass dominated by large cells in winter and small cells in summer. Phytoplankton growth rates were correlated with temperature, light availability, and community size-structure, while grazing rates were not correlated with total chlorophyll a, indicating other biological drivers at play in predator-prey interactions at the first trophic level.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Zoology
Claudia Tranquillo, Lucas Armand Wauters, Francesca Santicchia, Damiano Preatoni, Adriano Martinoli
Summary: This study investigated the morphological differences and personality trait differences of Eurasian red squirrels in different habitats. The results showed that squirrels living in the marginal habitat were smaller and lighter, and they were more active, explorative, and social than squirrels in other habitats. However, the squirrels in the marginal habitat showed less behavioral plasticity.
INTEGRATIVE ZOOLOGY
(2023)
Article
Forestry
Lukasz Dylewski, Andrzej M. Jagodzinski, Lukasz Tomas, Lukasz Myczko, Silvia Flaherty
Summary: Food resources play a crucial role in habitat selection by red squirrels. This study found that forest characteristics and estimated cone biomass are significant predictors of red squirrel feeding signs on Norway spruce. Estimation of cone biomass based on tree measurements can provide a useful tool for predicting potential foraging habitats for red squirrels.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Biodiversity Conservation
Rachel N. Larson, Heather A. Sander
Summary: Niche partitioning reduces interspecific competition, facilitating coexistence. In urban ecosystems, however, habitat loss reduces species' ability to spatially partition activity. Temporal partitioning may thus increase in urban areas as species, unable to avoid each other spatially, partition time to avoid competition. In Midwestern US cities, eastern gray squirrels (Sciurus carolinensis) and fox squirrels (S. niger) co-occur and compete for resources. Our study found that both species' activity patterns varied with season, land cover, and among sites where they do and do not co-occur. Temporal niche partitioning may play a role in supporting these species co-existence when competition is seasonally-elevated, but appears less important in other seasons.
Article
Meteorology & Atmospheric Sciences
Ye Liu, Sha Feng, Yun Qian, Huilin Huang, Larry K. Berg
Summary: In this study, a two-stage procedure approach is used to identify four weather regimes (WRs) that influence wind resources over North America. The WR-based reconstruction explains up to 40% of the monthly variance of power production over the western United States, and the explanatory power of WRs generally increases with the increase of timescales.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)
Article
Multidisciplinary Sciences
Marion Reichenbach, Ana Pinto, Sven Koenig, Raghavendra Bhatta, Eva Schlecht
Summary: Urbanization is a major driver of agricultural transition in the Global South, but its impact on dairy production systems is not well understood. The Indian megacity of Bengaluru has a high demand for dairy products, supplied by urban and peri-urban dairy producers. Four spatially explicit dairy production systems were identified based on urbanization levels, resources utilization, and market channels. Despite rapid urbanization, Bengaluru's dairy sector still relies on small-scale family farms, with potential shifts towards market-oriented intensification or extensification in an urbanizing environment.
Article
Meteorology & Atmospheric Sciences
Lexi Henny, Chris D. Thorncroft, Huang-Hsiung Hsu, Lance F. Bosart
Summary: The study reveals that extreme rainfall in Taiwan varies significantly across different seasons and regions, with typhoon season producing the most intense rainfall. Positive trends in extreme rainfall are most pronounced in winter and spring in the northern region, with the mei-yu season showing significant increases over the southwestern mountain slopes. Typhoon season accounts for the largest fraction of the observed annual extreme rainfall trend, with changes exceeding 1% per year in some areas.
JOURNAL OF CLIMATE
(2021)
Article
Multidisciplinary Sciences
Marina Morandini, John L. Koprowski
Summary: The use of surrogate species can assist in developing management strategies for endangered species by minimizing risk. Experimental approaches can also help identify reasons for translocation failures, increasing the chances of success. In this study, a surrogate subspecies, Tamiasciurus fremonti fremonti, was used to test different translocation techniques and inform management actions for the endangered Mt. Graham red squirrel (Tamiasciurus fremonti grahamensis).
Article
Biodiversity Conservation
Emilie A. Hardouin, Helen Butler, Marin Cvitanovic, Rainer G. Ulrich, Vanessa Schulze, Anna-Katarina Schilling, Peter W. W. Lurz, Anna Meredith, Kathy H. Hodder
Summary: Island populations may face higher extinction risk due to reduced genetic diversity, requiring effective management to reduce biodiversity loss. Red squirrel populations on the Isle of Wight have lower genetic diversity compared to mainland populations, with limited genetic mixing between populations on the island. Actions to encourage squirrel dispersal between populations should be a priority.
CONSERVATION GENETICS
(2021)
Article
Plant Sciences
Jan Andreas Solbach, Andreas Fricke, Hartmut Stutzel
Summary: In this study, quantitative knowledge of plants' responses to different light conditions is crucial for supplemental lighting decisions. We found that red light and white plus far-red light were more efficient for promoting plant dry weight production compared to blue light. In addition, efficiencies of all light regimes were significantly lower during summer compared to spring and winter, which is directly related to changes in natural light presence.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Zoology
Sarah B. Wilson, Robert A. Gitzen, Stephen S. Ditchkoff, Todd D. Steury
Summary: This study examined the adaptability of eastern gray squirrels to a seasonally flooded ecosystem in Alabama. The research found that squirrels did not significantly change their habitat use between dry and flooded seasons, but showed a preference for dry habitats during non-flood seasons. The survival rate was lower during the flooded season. However, no behavioral adaptations to seasonal flooding were observed. Further research is needed to fully understand the effects of fluctuating environmental conditions on scatterhoarders.
CANADIAN JOURNAL OF ZOOLOGY
(2023)
Article
Meteorology & Atmospheric Sciences
Daiqiang Liao, Haonan Zhu, Ping Jiang
Summary: The study investigated the urban heat island (UHI) effect in mountainous areas of Chongqing by analyzing UHI indexes based on various data sources. It found that a new method for dividing urban and suburban areas could reduce the impact of extreme climate years and altitude differences on UHI index calculations, providing a new approach for future studies in mountainous regions.
THEORETICAL AND APPLIED CLIMATOLOGY
(2021)
Article
Biology
Jakub Gryz, Dagny Krauze-Gryz
Article
Biodiversity Conservation
Dagny Krauze-Gryz, Jakub Gryz, Michal Zmihorski
GLOBAL ECOLOGY AND CONSERVATION
(2019)
Article
Agriculture, Dairy & Animal Science
Jakub Gryz, Dagny Krauze-Gryz
Article
Agriculture, Dairy & Animal Science
Jakub Gryz, Dagny Krauze-Gryz
Article
Biodiversity Conservation
Karolina D. Jasinska, Michal Zmihorski, Dagny Krauze-Gryz, Dorota Kotowska, Joanna Werka, Diana Piotrowska, Tomas Part
JOURNAL OF APPLIED ECOLOGY
(2019)
Article
Agriculture, Dairy & Animal Science
Mateusz Jackowiak, Peter Busher, Dagny Krauze-Gryz
Article
Biodiversity Conservation
Grzegorz Lesinski, Jakub Gryz, Dagny Krauze-Gryz, Przemyslaw Stolarz
Summary: Research conducted in Warsaw, Poland, between 1983 and 2018 found that the yellow-necked mouse, Apodemus flavicollis, has started to feature more prominently in the diet of tawny owl, Strix aluco, particularly in peri-urban woodlands. By the second half of the first decade of the 21st century, the yellow-necked mouse had even colonized a park in the city center, potentially becoming a competitor for the synurbic population of the striped field mouse, Apodemus agrarius.
Article
Biodiversity Conservation
Jakub Gryz, Tomasz Jaworski, Dagny Krauze-Gryz
Summary: The utilization of nest boxes in different habitats is determined by habitat type and species/taxa preferences. Urban squirrels show the highest occupancy rates, while yellow-necked mice mainly choose habitat mosaics. Starlings have higher nest box occupancy rates in urban and rural areas with high anthropopression.
Article
Agriculture, Dairy & Animal Science
Jakub Gryz, Dagny Krauze-Gryz, Daniel Klich
Summary: This study determined a metrical threshold between pellet groups of roe deer and fallow deer based on feces characteristics, providing a basis for the use of pellet group count method in fieldwork and population monitoring of these two species.
Article
Agriculture, Dairy & Animal Science
Agata Beliniak, Jakub Gryz, Daniel Klich, Karolina Jasinska, Dagny Krauze-Gryz
Summary: This study explores the high plasticity of red squirrels living in human-transformed habitats. The results show that park squirrels, despite having more supplemental feeding, had lower body weight and poorer body condition compared to forest squirrels. Regardless of the population, females in better body condition were more likely to breed. The park population had more breeding females and young squirrels. The breeding season for red squirrels was primarily in spring, but they also bred in winter and other seasons.
Article
Zoology
Agata Beliniak, Dagny Krauze-Gryz, Karolina Jasinska, Karolina Jankowska, Jakub Gryz
Summary: The study found that red squirrels in urban parks adjust their activity patterns to benefit from human presence, particularly showing increased activity in winter. In contrast, squirrels in the forest exhibited activity patterns more similar to natural habitats, while urban park squirrels were mainly active during specific times of the day to maximize chances of obtaining supplemental food.
HYSTRIX-ITALIAN JOURNAL OF MAMMALOGY
(2021)
Article
Biodiversity Conservation
Jakub Gryz, Dagny Krauze-Gryz