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The mechanisms of interactions between apex and smaller carnivores may range from competition to facilitation. Conversely, interactions between predators and prey are mainly driven by the prey reducing the likelihood of encounters with predators. In this study, we investigated (1) the spatiotemporal interactions between an apex (the snow leopard) and a meso-predator (the red fox), and (2) the temporal interactions between the snow leopard and its potential prey (Siberian ibex, argali, Asian wild ass, Tolai hare) through camera trapping in the Mongolian Great Gobi-A. The probability of occurrence for the red fox was higher in the presence of the snow leopard than in its absence. Moreover, the red fox activity pattern matched that of the snow leopard, with both species mostly active at sunset. This positive spatiotemporal interaction suggests that the presence of the snow leopard may be beneficial for the red fox in terms of scavenging opportunities. However, other explanations may also be possible. Amongst prey, the Siberian ibex and the argali were mainly active during the day, whereas the Asian wild ass and the Tolai hare were more nocturnal. These findings suggest that potential prey (especially the Siberian ibex and the argali) may shape their behavior to decrease the opportunity for encounters with the snow leopard. Our results have revealed complex interactions between apex and smaller predators and between apex predator and its potential prey.
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http://dx.doi.org/10.1093/cz/zoac093 | DOI Listing |
J Therm Biol
August 2025
Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada; Innovation and Portfolio Management, Canadian Blood Services, Edmonton, AB, Canada. Electronic address:
Extreme temperature fluctuations during routine handling and shipping of cryopreserved cell products significantly compromise product quality in ways that extend beyond the duration and peak temperature of the fluctuation. The type of cryoprotectant used and the initial ice nucleation temperature influence ice crystal growth during rewarming events, in turn impacting cell survival. Using a cryomicroscope together with temperature profiles recorded in cord-blood units, ice crystal growth was tracked through five transient-warming events (TWEs) that peaked at -30 °C, -20 °C, or -10 °C.
View Article and Find Full Text PDFWater Res
August 2025
Key Laboratory of SFGA (SPA) on Conservation Ecology in the Northeast Tiger and Leopard National park & Jilin Provincial Key Laboratory of Wetland Ecological Functions and Ecological Security, College of Geography and Ocean Sciences, Yanbian University, Yanji, 133300, China.
Snowpack variations in cold regions exert profound influences on the ecological functioning of constructed wetlands (CWs), particularly with respect to GHG emissions and nutrient removal. However, the underlying mechanisms have yet to be clarified. This study established pilot-scale vertical subsurface flow CWs in Northeast China, with Phragmites australis and Iris sibirica, and applied doubled snowpack (DS) and natural snow cover (CK) during winter.
View Article and Find Full Text PDFSci Rep
September 2025
Department of Environmental Science and Engineering, Faculty of Natural Resources, University of Jiroft, Jiroft, Iran.
Habitat fragmentation and the disruption of connectivity caused by roads are major concerns for the conservation of large carnivores as apex predator. The central arid plains of Iran support a variety of carnivore species, which their populations have sharply decreased because of habitat destruction, deterioration, and fragmentation. This study was conducted in the three conservation areas (CAs) and surrounded landscapes in central plains of Iran, focusing on two large carnivores: the grey wolf and the Persian leopard.
View Article and Find Full Text PDFMov Ecol
August 2025
Wildlife Institute of India, Chandrabani, Dehradun, 248001, India.
Background: Large carnivores in human-dominated landscapes face significant risks from increased anthropogenic pressure, making it crucial to understand their movement behaviour for conservation strategies.
Methods: We used conventional and generalised hidden Markov models (HMMs) to analyse GPS telemetry data collected from 2016 to 2022 on 15 subadult tigers to classify behavioural states across three life stages (pre-dispersal, dispersal, post-dispersal) in the Eastern Vidarbha Landscape, India. We further examined how intrinsic and extrinsic factors influenced transitions between these behavioural states.
Animals (Basel)
August 2025
Department of Animal Health and Anatomy, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Spain.
Oxytocin (OT) has emerged as a central focus in stress regulation and animal welfare research. While commonly measured in blood, saliva, and urine, its presence in feces remains unexplored. Fecal OT (fOT) could be highly valuable for wildlife studies, where direct handling is impractical.
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