Article
Immunology
Ali Asghari, Mohammad Hossein Motazedian, Qasem Asgari, Laya Shamsi, Bahador Sarkari, Saeed Shahabi, Behnam Mohammadi-Ghalehbin
Summary: This study aimed to determine the prevalence, genetic variation, and zoonotic significance of Giardia duodenalis in different species of rodents in Shiraz, Iran. The results showed the presence of both zoonotic and non-zoonotic Giardia assemblages in rodents, with black rats potentially posing a risk for Giardia infection in humans.
COMPARATIVE IMMUNOLOGY MICROBIOLOGY AND INFECTIOUS DISEASES
(2022)
Article
Environmental Sciences
Corbin F. Bennetts, Robert T. Leaf, Kevin S. Dillon
Summary: In this study, the authors evaluated stable isotope values of carbon and nitrogen in muscle tissue of red drum to understand their variations with capture location, age, and total length. They also investigated the patterns of isotopic niche space and overlap among different age groups, and developed a machine learning model to predict capture location category. The results showed that the isotope values varied with capture location, age, and total length. The models successfully predicted capture location category using isotope values and total length as predictors.
ESTUARIES AND COASTS
(2023)
Article
Ecology
Olivier Morissette, Clive N. Trueman, Anna M. Sturrock, Audrey J. Geffen, Kotaro Shirai
Summary: Water temperature is vital for studying the ecology of aquatic ectotherms, but validating individual-based thermal experience measurements remains challenging. The stable isotope composition of oxygen in biominerals serves as a natural thermometer due to isotopic fractionation between water and minerals. However, coefficients of published temperature-dependent fractionation equations vary among taxa, suggesting the need for species-specific experimental validation before inferring temperature from biomineral oxygen isotope thermometry.
METHODS IN ECOLOGY AND EVOLUTION
(2023)
Article
Ecology
Flavio Monti, Alois Robert, Jean-Marie Dominici, Andrea Sforzi, Rafel Triay Bagur, Antoni Munoz Navarro, Gael Guillou, Olivier Duriez, Ilham Bentaleb
Summary: By combining GPS tracking and SIA analysis, insights into the wintering ecology and habitat use of the Corsican osprey population were gained. The study revealed that 50% of ospreys were resident while the other half were migratory, showing high plasticity in habitat selection across the Mediterranean basin. The integration of SIA and GPS/GSM tracking techniques proved effective in providing comprehensive information for ecological studies of migratory birds in aquatic environments.
Article
Ecology
Maria del Mar Quiroga-Samaniego, Xchel G. Moreno-Sanchez, Marina S. Irigoyen-Arredondo, Leonardo A. Abitia-Cardenas, Fernando R. Elorriaga-Verplancken, Arturo Tripp-Valdez, Ulianov Jakes-Cota, Maria del Pilar Perez-Rojo, Diego Paez-Rosas
Summary: The study evaluated trophic interactions between two sympatric snapper species in the Central Gulf of California, finding differences in diet and isotopic niches, but also shared resources as a coexistence mechanism. The two species were considered linking species within the trophic web, exhibiting an opportunist strategy in resource utilization.
REGIONAL STUDIES IN MARINE SCIENCE
(2022)
Article
Fisheries
Seiji Ohshimo, Taketoshi Kodama, Atsushi Tawa, Hiroshige Tanaka, Yosuke Tanaka, Go Yasuhara, Michihiro Tokuyasu, Yoichi Minami
Summary: The diamond squid is an important fisheries resource in subtropical and temperate waters worldwide, but the linkages between different habitats are unknown. To clarify the species distribution, the researchers estimated the habitat of young squid using trawl surveys and stable isotope analysis. The results showed that young squid were mainly distributed in specific areas around Taiwan, Okinawa Islands, Sea of Japan, and the Kuroshio extension areas, with ontogenetic changes in stable isotope ratios observed. Large diamond squid in the northwest Pacific were found to have two distinct habitats based on their δN-15 values.
FISHERIES OCEANOGRAPHY
(2023)
Review
Oceanography
Megumi Enomoto, Shin-ichi Ito, Motomitsu Takahashi, Chiyuki Sassa, Tomihiko Higuchi, Kotaro Shirai
Summary: This study analyzed the vertical habitat shift of juvenile Japanese jack mackerel using oxygen stable isotope analysis, and determined the timing and duration of the shift. The results showed that the fish's body length and growth conditions influence the timing of the habitat shift.
PROGRESS IN OCEANOGRAPHY
(2022)
Article
Fisheries
Henry W. Slesser, Clive N. Trueman
Summary: Ensuring sustainability of world fisheries is crucial. Traceability of seafood from harvest to sale is important for management and protection. Isotope-based geolocation can accurately identify catch location of marine organisms.
JOURNAL OF SHELLFISH RESEARCH
(2021)
Article
Paleontology
Hiroyuki Takata, Boo-Keun Khim, Hirofumi Asahi, Shiro Hasegawa, Musafumi Murayama
Summary: This study investigated the microhabitats of benthic foraminifera and stable isotope compositions of living Elphidium batialis off the Hidaka region in northern Japan. Different species of foraminifera were found to reside in different microhabitats within the sediment column, with their oxygen and carbon isotope values showing variations depending on water depth. The delta C-13 difference between Elphidium batialis and Uvigerina spp. may provide insights into past oceanic conditions and water evolution in the North Pacific margin.
MARINE MICROPALEONTOLOGY
(2021)
Article
Zoology
Kandai Doi, Mikuni Tokuyoshi, Kaori Morishima, Kazunobu Kogi, Yuya Watari
Summary: A study conducted on Mikura-shima Island revealed significant differences in tick infestation rates between Norway rats and black rats. The study also discovered the distribution of Ixodes granulatus ticks on the island, which had not been previously reported. Additionally, this study documented cases of domestic cats and a human being bitten by these ticks. These findings are important for understanding tick infestation rates in wildlife hosts and the transmission of infectious diseases.
Article
Psychology, Multidisciplinary
Michael A. Woodley of Menie, Mateo Penaherrera-Aguirre, Matthew A. Sarraf
Summary: This study discusses the differentiation effects of cognitive performance and GCA in laboratory mouse and rat populations over time, suggesting a possible link to environmental factors and cognitive plasticity. The results indicate that these differentiation effects may exist in captive populations of non-human animals.
Article
Ecology
Jose Luis Varela, Antonio Medina, Santiago Deniz, Francisco Javier Abascal
Summary: This study investigated the trophic biology of Atlantic bluefin tuna (ABFT) in the Canary Islands, showing that ABFT actively foraged on fish prey, primarily snipefish. Plastic debris was also found in some stomachs. Isotopic analysis indicated inter-annual differences in diet, with a more diverse diet in 2017. The results suggest that the Canary Islands serve as a foraging ground for ABFT.
MARINE ECOLOGY PROGRESS SERIES
(2022)
Article
Ornithology
Barbara Kofler, Wolfgang Wanek, Christian C. Voigt, Christian H. Schulze
Summary: This study investigated migration patterns and population connectivity in the Reed Bunting community of Lake Neusiedl, Austria. The results showed seasonal changes in population structure, with three distinct populations identified based on isotope markers and morphological characteristics. Differences in bill shape and habitat selection during winter indicated niche segregation among co-occurring populations.
JOURNAL OF ORNITHOLOGY
(2021)
Article
Chemistry, Inorganic & Nuclear
Audrey Robillard, Gilles Gauthier, Jean-Francois Therrien, Joel Bety
Summary: By utilizing a combination of feather isotopes and satellite tracking of snowy owls, this study reveals a relationship between the use of coastal and marine environments in winter with the diet composition from the previous year. The study also shows that the proportion of marine resources in the winter diet of snowy owls varies among individuals and has a weak negative correlation with summer body mass, but not with laying date or clutch size.
ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES
(2021)
Article
Geology
Julie Dabkowski, Quentin Wackenheim, Christophe Falgueres, Denis Fiorillo, Olivier Tombret, Nicole Limondin-Lozouet, Larbi Boudad, Jean-Francois Berger
Summary: In recent decades, research on calcareous tufas as palaeoenvironmental and palaeoclimatic records has increased, providing well-documented sites for inter-site comparisons and regional- to continental-scale reviews. This paper presents a review of the southeastern Mediterranean area, discussing the intensity of humid periods based on new dating and isotopic data. It shows that tufa deposits have the potential to accurately analyze climate variability in this region.
E&G QUATERNARY SCIENCE JOURNAL
(2022)