A5034867935- Avian ecology and behavior
- Animal Behavior and Reproduction
- Climate variability and models
- Wildlife Ecology and Conservation
- Animal Ecology and Behavior Studies
- Physiological and biochemical adaptations
- Radio Wave Propagation Studies
- Bird parasitology and diseases
- Viral gastroenteritis research and epidemiology
- Vaccine Coverage and Hesitancy
- Influenza Virus Research Studies
- Prenatal Screening and Diagnostics
- Climate Change, Adaptation, Migration
- Hemiptera Insect Studies
- Alzheimer's disease research and treatments
- Hemoglobinopathies and Related Disorders
- Species Distribution and Climate Change
- Collembola Taxonomy and Ecology Studies
- Animal Vocal Communication and Behavior
- Impact of Light on Environment and Health
- Urban Transport and Accessibility
- Iron Metabolism and Disorders
- Wind Energy Research and Development
- Bat Biology and Ecology Studies
- Prion Diseases and Protein Misfolding
Acadia University
2017-2023
University of Amsterdam
2021-2023
Wildlife Conservation Society Canada
2023
Western University
2014-2022
Google (United States)
2015
Royal Society for the Protection of Birds
2010
Addenbrooke's Hospital
2002
Brunel University of London
2000
As environmental conditions fluctuate across years, seasonal migrants must determine where and when to move without comprehensive knowledge of beyond their current location. Animals can address this challenge by following cues in local environment vary behaviour response conditions, or moving based on learned inherited experience past resulting fixed years. It is often claimed that long-distance are more migratory because as distance between breeding wintering areas increases, reliability...
<b><i>Background:</i></b> The authors have identified and studied a large kindred in which frontotemporal dementia (FTD) is inherited as an autosomal dominant trait. trait has been mapped to the pericentromeric region of chromosome 3. <b><i>Methods:</i></b> report on clinical, neuroimaging, neuropsychological, pathologic features this unique pedigree collected during 17 years study. <b><i>Results:</i></b> Twenty-two individuals three generations affected; age at onset varies between 46 65...
Using a broad-scale automated telemetry array, we explored post-fledging movements of blackpoll warblers breeding in Atlantic Canada. We sought to determine the full spatial scale dispersal, assess support for three hypotheses regional-scale movement, and whether learning influenced movement during this period. demonstrated that both young adults moved over distances more than 200 km prior initiating migration. Adults southwest, crossing Gulf Maine (GOM), consistent with commencement...
Abstract Seasonal migrations are used by diverse animal taxa, yet the costs and benefits of migrating have rarely been empirically examined. The aim this study was to determine how migration influences two ecological currencies, energy expenditure time allocated towards different behaviors, in a full annual cycle context. We compare these currencies among lesser black-backed gulls that range from short- (< 250 km) long-distance (> 4500 migrants. Daily time-activity budgets were...
Abstract Background Weather can have both delayed and immediate impacts on animal populations, species evolved behavioral adaptions to respond weather conditions. has long been hypothesized affect the timing intensity of avian migration, radar studies demonstrated strong correlations between broad-scale migration patterns. How affects individual decisions about initiation migratory flights, particularly at beginning remains uncertain. Methods Here, we combine automated radio telemetry data...
Migrating animals show remarkable diversity in migration strategies, even between individuals from the same population. longer distances is usually expected to be costlier terms of time, energy expenditure and risks with potential repercussions for subsequent stages within annual cycle. Such costs are balanced by increased survival, example due higher quality wintering areas or lower at latitudes. We compared reproductive parameters apparent survival lesser black-backed gulls (
Each spring and fall billions of songbirds depart on nocturnal migrations across the globe. Theory suggests that should migration shortly after sunset to maximize their potential for nightly flight duration or time departure with emergence celestial cues needed orientation navigation. Although captive studies have found during a narrow window sunset, observational wild birds later more asynchronously relative than predicted.We used coded radio tags automated radio-telemetry estimate nearly...
Sex differences in the behaviors underlying avian protandry, where males arrive at breeding areas earlier than females, are still poorly understood for most species. We tested sex stopover behavior, refueling rates, and postdeparture movements during spring migration 2 consecutive years wood-warblers (Parulidae) a coastal site on Lake Erie, Ontario, using automated radio telemetry (black-throated blue warblers Setophaga caerulescens magnolia magnolia) analysis of plasma metabolites as...
Regional scale movement patterns of songbirds are poorly known largely due to difficulties tracking small organisms at broad scales. Using an array over 100 automated radio telemetry towers, we followed Blackpoll Warblers (Setophaga striata) during fall migration in the Gulf Maine region, and assessed how their regional pathways varied with age, distance natal origin, capture date. Many individuals had paths that were not oriented towards migratory goal ('indirect patterns'), regardless or...
Abstract In animal ecology, energy expenditure is used for assessing the consequences of different behavioural strategies, life‐history events or environments. Animals can also influence through instantaneous responses to their external environment. It therefore interest measure free‐ranging animals across seasons and at high temporal resolutions. Heart rate has historically been this, but requires invasive surgery long‐term use. Dynamic body acceleration (DBA) an alternative proxy that...
To investigate the utility of short visits to seabird colonies gauge nestling growth performance and diet, in 4 consecutive years (19951998) we measured development diet Rhinoceros Auklets (Cerorhinca monocerata) at three British Columbia: Seabird Rocks, Triangle Island, SGaang Gwaii (Anthony Island). In all years, nestlings a given wing length on Island were significantly smaller than those Rocks or Gwaii. Meals also lighter Gwaii; meals latter two islands indistinguishable mass. Retarded...
Background.The aim of the study was to calculate cost UK National Health Service providing treatment services for patients with sickle cell disorders. The rates differential morbidity and mortality, in first 10 years life, between screen-detected early diagnosed clinically presenting late cohorts disorder are also estimated.
The island of Mousa, Shetland, is designated as part the European Natura 2000 reserve network a Special Protection Area (SPA) for breeding Storm- petrels Hydrobates pelagicus. In 1996 population was censused using playback methods and reported 6,800 (95% CI 4,800–8,800) apparently occupied sites (AOS), c. 26% UK population. Re-examination data highlighted some calculation inaccuracies, resulting in reduced estimate 5,410 AOS 3,932–7,022). Resurvey colony 2008 identical revealed 118% increase...
Intraspecific competition can influence refuelling at migration stopover sites. White‐throated sparrows Zonotrichia albicollis have genetically‐determined plumage morphs that differ in dominance behaviour and competitive abilities. This study examines the effects of morph, sex age, three likely indicators ability, on fall timing, body composition, rates during Long Point, Ontario. We used quantitative magnetic resonance analysis plasma metabolite profiling to determine composition rates,...
Fat contributes most of the energy for migratory flight birds, whereas lean body tissues (muscles and organs) contribute amino acids water to maintain metabolic osmotic homeostasis. During refueling at stopover sites, both fat mass are recovered, but dynamics this recovery poorly understood. We used non-invasive quantitative magnetic resonance (QMR) analysis measure &gt; 3,500 individuals 25 songbird species during six spring three autumn migration seasons between 2009 2019 Long Point,...