A5070119973- Wildlife Ecology and Conservation
- Avian ecology and behavior
- Marine animal studies overview
- Species Distribution and Climate Change
- Wildlife-Road Interactions and Conservation
- Bat Biology and Ecology Studies
- Animal Vocal Communication and Behavior
- Marine and fisheries research
- Animal Behavior and Welfare Studies
- Fish Ecology and Management Studies
- Ichthyology and Marine Biology
- Animal Behavior and Reproduction
- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Isotope Analysis in Ecology
- Rangeland and Wildlife Management
- Food Supply Chain Traceability
- Human-Animal Interaction Studies
- Environmental DNA in Biodiversity Studies
- Electromagnetic Fields and Biological Effects
- Marine Toxins and Detection Methods
- Marine Biology and Ecology Research
- Environmental Toxicology and Ecotoxicology
- Animal Ecology and Behavior Studies
- Animal Genetics and Reproduction
University of Auckland
2010-2023
Fiji National University
2017-2023
Network Technologies (United States)
2002
University of Virginia
1995
Goddard Space Flight Center
1970
Animal movement is fundamental for ecosystem functioning and species survival, yet the effects of anthropogenic footprint on animal movements have not been estimated across species. Using a unique GPS-tracking database 803 individuals 57 species, we found that mammals in areas with comparatively high human were average one-half to one-third extent their low footprint. We attribute this reduction behavioral changes individual animals exclusion long-range from higher impact. Global loss...
Abstract Aim To examine the global distribution, endemicity, and latitudinal gradients of species richness razor clams, family Solenidae. Location Global. Methods A total 3105 distribution records for 77 Solen Solena were used. Species was plotted in 5° latitude–longitude cells related to environmental variables. Results The north‐west Pacific Indo‐West have highest (about 85% all species)–mostly Sea Japan, China Sea, Gulf Thailand Andaman Sea. Cluster analysis similarity patterns...
The influence of the Earth's magnetic field on locomotory orientation has been studied in many taxa but is best understood for homing pigeons (Columba livia). Effects experimentally induced and naturally occurring perturbations geomagnetic suggest that are sensitive to changes parameters. However, whether use position determination remains unknown. Here we report an apparent intensity gradient observed from sites around a anomaly. From flight trajectories recorded by GPS-based tracking...
We present a simple framework for classifying mutually exclusive behavioural states within the geospatial lifelines of animals. This method involves use three sequentially applied statistical procedures: (1) change point analysis to partition movement trajectories into discrete bouts same-state behaviours, based on abrupt changes in spatio-temporal autocorrelation structure parameters; (2) hierarchical multivariate cluster determine number different states; and (3) k-means clustering...
Determining the foraging movements of pelagic seabirds is fundamental for their conservation. However, vulnerability and elusive lifestyles these animals have made them notoriously difficult to study. Recent developments in satellite telemetry enabled tracking smaller during excursions.Here, we report first successful precision a c. 700 g seabird, vulnerable Black Petrel, Procellaria parkinsoni, at sea breeding season, using miniature GPS-logging technology. Employing combination...
Behaviour and distribution of striped marlin within the southwest Pacific Ocean were investigated using electronic tagging data collected from 2005–2008. A continuous-time correlated random-walk Kalman filter was used to integrate double-tagging exhibiting variable error structures into movement trajectories composed regular time-steps. This state-space trajectory integration approach improved longitude latitude distributions by 38.5 km 22.2 respectively. Using these as inputs, a behavioural...
Recently, there has been much interest in describing the behaviour of animals by fitting various movement models to tracking data. Despite this interest, little is known about how temporal 'grain' trajectories affects outputs such models, and behaviours classified at one timescale may differ from those other scales. Here, we present a study which random-walk state-space were fit both nightly geospatial lifelines common brushtail possums (Trichosurus vulpecula) synthetic parameterised...
Trapping, handling, and deployment of tracking devices (tagging) are essential aspects many research conservation studies wildlife. However, often these activities place nonhuman animals under considerable physical or psychological distress, which disrupts normal patterns behavior may ultimately result in deleterious effects on animal welfare the validity results. Thus, knowledge how trapping, tagging alter is if measures to ameliorate stress-related be developed implemented. This article...
Recent technological advances have made possible the development of animal-tracking devices based on global positioning system (GPS) that are much smaller than what were available previously. However, potential limitations in size-dependent technologies and differences patterns behavior between small large animals could mean miniaturized GPS tracking may not function as well their larger counterparts. Here, we evaluate performance characteristics 105-g collars suitable for prolonged use...
Males of lek-breeding species defend clustered territories from which they display to visiting females. However, the mechanisms leading adoption male sites are often unknown. In this study, we examined possibility a resource-based lek in New Zealand's lesser short-tailed bat (Mystacina tuberculata) (Mammalia: Chiroptera), by assessing placement "singing roosts" used males relation communal roosting The "resource-based lek" model posits that settle near resources required females increase...
The little penguin Eudyptula minor is primarily an inshore forager with its range generally limited to c. 30 km of breeding sites during the nesting period. However, exceptions greater foraging distances have been recorded in Australia. To investigate plasticity New Zealand we used GPS tracks gathered on 68 individuals three regions central between 2011 and 2016. Foraging patterns varied years. Tracks revealed that penguins can rely distant areas while incubating, birds travelling up 214...