A5009196781- Avian ecology and behavior
- Marine animal studies overview
- Fish Ecology and Management Studies
- Ecology and biodiversity studies
- Wildlife Ecology and Conservation
- Microplastics and Plastic Pollution
- Aquatic Invertebrate Ecology and Behavior
- Effects and risks of endocrine disrupting chemicals
- Recycling and Waste Management Techniques
- Isotope Analysis in Ecology
University of Canterbury
2019-2023
Abstract Plastic pollution is distributed patchily around the world’s oceans. Likewise, marine organisms that are vulnerable to plastic ingestion or entanglement have uneven distributions. Understanding where wildlife encounters crucial for targeting research and mitigation. Oceanic seabirds, particularly petrels, frequently ingest plastic, highly threatened, cover vast distances during foraging migration. However, spatial overlap between petrels plastics poorly understood. Here we combine...
The Hutton's shearwater Puffinus huttoni is an endangered seabird endemic to Kaikōura, New Zealand, but the spatial and temporal aspects of its at-sea foraging behavior are not well known.To identify areas estimate trip durations, we deployed Global Positioning Systems (GPS) devices Time-Depth Recorders (TDR) on 26 adult shearwaters during chick-rearing period in 2017 2018.We found traveled much further from their breeding grounds at Kaikōura than previously considered, with most individuals...
With the development and implementation of tracking technology, we are now able to monitor foraging behaviour seabirds while at sea. Time-Depth Recorders (TDRs) were fitted Hutton's shearwaters (Puffinus huttoni), an endangered endemic New Zealand species, measure how diving varies over breeding cycle. (∼350 g) dive up 339 times per day (average 68.8) depths 35 m 5.6 m), for periods 60 s 19.2 s). Incubating birds dived deeper than feeding chicks, a significant difference in depth duration...
Stable isotope analysis of feathers can provide an indirect method to investigate the diet and foraging locations birds during time were growing.We used isotopic composition experimentally-induced Hutton's shearwater (Puffinus huttoni), endangered seabird that is a breeding endemic Kaikōura region New Zealand.The was first compared with potential prey items collected from near-shore marine environment near colony.By applying trophic fractionation factors (2-4 ‰ increase in δ 15 N for every 1...