A5090641620- Avian ecology and behavior
- Fire effects on ecosystems
- Animal Behavior and Reproduction
- Rangeland and Wildlife Management
- Wind Energy Research and Development
- Wildlife Ecology and Conservation
- Animal Nutrition and Physiology
- Species Distribution and Climate Change
- Wildlife-Road Interactions and Conservation
- Remote Sensing and LiDAR Applications
- Physiological and biochemical adaptations
- Aviation Industry Analysis and Trends
- Environmental Conservation and Management
- Marine and coastal plant biology
- Climate variability and models
- Pasture and Agricultural Systems
- Marine Biology and Ecology Research
- Forest Ecology and Biodiversity Studies
- Marine and fisheries research
- Animal Vocal Communication and Behavior
- Fish Ecology and Management Studies
- Social Acceptance of Renewable Energy
- Lepidoptera: Biology and Taxonomy
Wageningen University & Research
2023
Netherlands Defence Academy
2018-2020
Bureau Waardenburg (Netherlands)
2007-2018
University of Groningen
1998-2012
The number of offshore wind farms is increasing rapidly, leading to questions about the environmental impact such farms. In Netherlands, an extensive monitoring programme being executed at first farm (Offshore Windfarm Egmond aan Zee, OWEZ). This letter compiles short-term (two years) results on a large faunal groups obtained so far. Impacts were expected from new hard substratum, moving rotor blades, possible underwater noise and exclusion fisheries. indicate no effects benthos in sandy...
The aerosphere is utilized by billions of birds, moving for different reasons and from short to great distances spanning tens thousands kilometres. aerosphere, however, also aviation which leads increasing conflicts in around airfields as well en‐route. Collisions between birds aircraft cost euros annually and, some cases, result the loss human lives. Simultaneously, has diverse negative impacts on wildlife. During avian migration, due sheer numbers air, risk bird strikes becomes...
We studied collision rate of birds with modern, large 1.65 MW wind turbines in three farms The Netherlands during months autumn and winter. Collision rate, after correction for retrieval disappearance was 0.08 per turbine day on average (range 0.05–0.19). risk, i.e. the number victims relative to flight intensity at farms, 0.14% average. For nocturnal migrants, risk as low 0.01%, while 0.16% local flying night. In absolute numbers, overall similar 0.06–0.28% found earlier-generation lower...
Assessing the impacts of avian collisions with wind turbines requires reliable estimates flight intensities and altitudes, to enable accurate estimation collision rates, avoidance rates related effects on populations. At sea, obtaining such visually is limited not only by weather conditions but, more importantly, because a high proportion birds fly at night heights above range visual observation. We used vertical radar automated bird‐tracking software overcome these limitations obtain data...
Food consumption was measured in six female and seven male hand-raised marsh harrier (Circus aeruginosus) nestlings. Females consumed on average 4,321 g males 3,571 of food during the nestling stage from 0 to 36 d. Total until 56 d 6,960 5,822 for females males, respectively. On basis Fisher's sex ratio theory, this intake 0.46 (intake male/[intake male/female]) would explain observed male-biased fledging 55% broods. Growth, gross energy intake, metabolizable were measured, along with...
Track-while-scan bird radars are widely used in ornithological studies, but often the precise detection capabilities of these systems unknown. Quantification radar performance is essential to avoid observational biases, which requires practical methods for validating a radar's capability specific field settings. In this study method quantify presented, as well demonstration case study. By time-referencing line-transect surveys, visually identified birds were automatically linked individual...
On their migratory journeys, terrestrial birds can come across large inhospitable areas with limited opportunities to rest and refuel. Flight over these poses a risk especially when wind conditions en route are adverse, in which case act as an ecological barrier for migrants. Thus, within the east‐Atlantic flyway, North Sea function barrier. The main aim of this study was shed light on seasonal patterns bird migration southern determine whether departure decisions nights intense were related...
The aerosphere is utilized by billions of birds, moving for different reasons and from short to great distances spanning tens thousands kilometres. aerosphere, however, also aviation which leads increasing conflicts in around airfields as well en‐route. Collisions between birds aircraft cost euros annually and, some cases, result the loss human lives. Simultaneously, has diverse negative impacts on wildlife. During avian migration, due sheer numbers air, risk bird strikes becomes...
Abstract Knowing the consequences of disturbance for multiple species and all sources is crucial to mitigate impacts in densely populated areas. However, studies that observe complete landscape estimate cumulative costs are scarce. Therefore, we quantified responses, frequencies energetic four shorebird on five high tide roosts Wadden Sea. Roosts were located either a military air force training area or predominantly affected by recreational disturbance. In area, infrequent transport...
Newly hatched precocial chicks of arctic shorebirds are able to walk and regulate their body temperatures a limited extent. Yet, they must also grow rapidly achieve independence before the end short growing season. A rapid growth rate may conflict with development mature function, because allometric scaling thermal relationships, this trade‐off might be resolved differently in large small species. We assessed (mass) functional maturity (catabolic enzyme activity) leg pectoral muscles aged...
We studied time budgets of precocial chicks American Golden-Plovers (Pluvialis dominica) on the tundra near Churchill, Manitoba, Canada, to assess how are influenced by environmental and body temperatures. Foraging per day increased with increasing ambient temperatures levels solar radiation, as well age. This increase was due an in length foraging bouts (i.e., period between two brooding bouts). The averaged 12 min, independent conditions or Body were lower under colder grew older. Based...
Anthropogenic disturbance can negatively affect an animal's energy budget by evoking movement responses. Existing research focuses mainly on immediate displacement as a effect, since this be easily observed in the field. However, effects over longer timescales are poorly examined and it is largely unknown if to what extent they reflect Longer-term responses could for example larger than birds, after disturbance, return original location thereby travel twice disturbed distance. We combined...
Abstract We studied time budgets of precocial chicks American Golden-Plovers (Pluvialis dominica) on the tundra near Churchill, Manitoba, Canada, to assess how are influenced by environmental and body temperatures. Foraging per day increased with increasing ambient temperatures levels solar radiation, as well age. This increase was due an in length foraging bouts (i.e., period between two brooding bouts). The averaged 12 min, independent conditions or Body were lower under colder grew older....
Abstract We measured daily energy expenditure (DEE) during the development periods of precocial chicks five species Arctic shorebirds spanning a broad range in size, order to investigate relationships between DEE, body and growth rate. also quantified effect weather conditions on establish impact cold arctic their time budgets. used doubly labeled water method measure DEE at ambient temperatures an outside enclosure subarctic tundra Churchill, Manitoba, Canada. Growth rate was highest...