A5024243294- Animal Behavior and Reproduction
- Wildlife Ecology and Conservation
- Primate Behavior and Ecology
- Animal Vocal Communication and Behavior
- Aquaculture Nutrition and Growth
- Bat Biology and Ecology Studies
- Physiological and biochemical adaptations
- Grouting, Rheology, and Soil Mechanics
- Fish Ecology and Management Studies
- Concrete and Cement Materials Research
- Marine animal studies overview
- Ecology and Vegetation Dynamics Studies
- Insect and Arachnid Ecology and Behavior
- Wildlife-Road Interactions and Conservation
- Microbial Applications in Construction Materials
- Plant and animal studies
- Zoonotic diseases and public health
- Animal Behavior and Welfare Studies
- Species Distribution and Climate Change
- Avian ecology and behavior
- Agriculture and Rural Development Research
- Animal Ecology and Behavior Studies
- Methane Hydrates and Related Phenomena
- Geotechnical and construction materials studies
- Geological Modeling and Analysis
University of the Free State
2016-2025
Agence internationale de l'énergie
2024
Academy of Science of South Africa
2022
Total (France)
2017
Université Claude Bernard Lyon 1
1967-2014
Kalahari Meerkat Project
2014
Matériaux Ingénierie et Science
2014
Centre National de la Recherche Scientifique
2014
University of Michigan
2008-2012
Centre Hospitalier Esquirol de Limoges
2012
When juvenile turbot Scophthalmus maximus and sea bass Dicentrarchus labrax were fed to satiation, growth food intake depressed under hypoxia (3·2±0·3 4·5±0·2 mg O 2 l ‐1 ). However, no significant difference in was observed between fishes maintained satiation reared normoxia (7·4±0·3 ) restricted rations (same of at 3·2 Routine oxygen consumption higher than due the decrease latter. Of physiological parameters measured, changes two species hypoxia. This study confirms interaction...
The effects of constant temperatures on growth, food efficiency, and physiological status were studied in four different batches juvenile turbot. growth responses three experiments lasting 70–85 days under 8–20° C thermal conditions. There was a positive correlation between temperature from 8 to 17° plateau observed 17 20° C. In fish fed satiety, specific rate positively correlated the intake, which double at C, compared with 8° Minor changes efficiency. Body fat deposition decreased as...
Abstract Aim The road network is increasing globally but the consequences of roadkill on viability wildlife populations are largely unknown. We provide a framework that allows us to estimate how risk extinction local increases due and generate global assessment identifies which mammalian species most vulnerable areas where they occur. Location Global. Time period 1995–2015. Major taxa studied Terrestrial mammals. Methods introduce quantify effect terrestrial mammals worldwide includes three...
Roadkill is widely recognized as one of the primary negative effects roads on many wildlife species and also has socioeconomic impacts when they result in accidents. A comprehensive dataset roadkill locations essential to evaluate factors contributing risk enhance our comprehension its impact populations dimensions. We undertook a compilation records, encompassing both published unpublished data gathered from road surveys or opportunistic sources. GLOBAL ROADKILL DATA includes 208,570...
The effects of salinity changes (27, 19 and 10‰) on seawater‐adapted juvenile turbot were studied their plasma osmolarity ion concentrations, oxygen consumption, gill Na + ,K ‐ATPase activity after 3 months growth parameters. All concentrations (except chloride) unchanged, suggesting that fish well adapted to environment. Oxygen consumption was significantly decreased in the 10‰ groups, where weighed more 105 days transfer than maintained sea water. These results, fact apparent food...
Primates are intensely social and exhibit extreme variation in structure, making them particularly well suited for uncovering evolutionary connections between sociality vocal complexity. Although comparative studies find a correlation complexity, the function of large repertoires more complex societies remains unclear. We compared complexity found primates to both mammals general human language particular that non-human not unusual their repertoires. To better understand within primates, we...
Humans and human infrastructure are known to alter the relationship between predators prey, typically by directly or indirectly shielding one of species from other. In addition these overt changes animals' behavior, observers may have more subtle impacts on foraging decisions. However, anthropogenic alteration risk-taking behavior has rarely been acknowledged quantified, particularly in behavioral ecological studies reliant habituated animals. We tested magnitude "human shield effect"...
Abstract Cercopithecines have a highly conserved social structure with strong female bonds and stable, maternally inherited linear dominance hierarchies. This system has been ascribed to the pervasiveness of philopatry within typical multi‐male, multi‐female groups. We examined relationship between philopatry, hierarchies, reproduction in geladas ( Theropithecus gelada ), species an unusual multi‐leveled society. During 4‐year field study on wild population Simien Mountains National Park,...
Roads impact wildlife through a range of mechanisms from habitat loss and decreased landscape connectivity to direct mortality wildlife-vehicle collisions (roadkill). These have been rated amongst the highest modern risks wildlife. With development 'citizen science' projects, in which members public participate data collection, it is now possible monitor impacts roads over scales far beyond limit traditional studies. However, reliability provided by citizen scientists for roadkill studies...
Turbot juveniles were exposed to four ammonia concentrations [0·17 (L), 0·34 (M), 0·73 (MH) and 0·88 (H) mg l −1 NH 3 ‐N] for different exposure durations (28 days minimum 84 days). Their physiological status growth performances compared a control group [0·004 (C) ‐N]. No was observed in the H group, by day 57, mass increase MH only 15% of that C. During first month L similar while it lower (33%) M group; afterwards groups had (half controls). Accumulation total nitrogen (TA‐N) plasma...
Mean values of the composition seminal fluid 30 turbots were: osmotic pressure =306 mosml −1 , pH =7–31, total protein =8.8mg ml 1 Na + =133.0 mmoll K =3.80mmoll Cl − =129mmol l . The rounded nucleus, reduced middle piece and typical ‘9 2’ structure flagellum mean that spermatozoon turbot can be considered to a primitive type.