Seabirds are birds that are adapted to life within the marine environment. While seabirds vary greatly in lifestyle, behaviour and physiology, they often exhibit striking convergent evolution, as the same environmental problems and feeding niches have resulted in similar adaptations. The first seabirds evolved in the Cretaceous period, and modern seabird families emerged in the Paleogene.
Leach's storm petrel or Leach's petrel is a small seabird of the tubenose order. It is named after the British zoologist William Elford Leach. The scientific name is derived from Ancient Greek. Hydrobates is from hydōr "water", and batēs "walker", and leucorhous is from leukos, "white" and orrhos, "rump". It was formerly defined in the genus Oceanodroma before that genus was synonymized with Hydrobates.
Marine debris, also known as marine litter, is human-created solid material that has deliberately or accidentally been released in seas or the ocean. Floating oceanic debris tends to accumulate at the center of gyres and on coastlines, frequently washing aground, when it is known as beach litter or tidewrack. Deliberate disposal of wastes at sea is called ocean dumping. Naturally occurring debris, such as driftwood and drift seeds, are also present. With the increasing use of plastic, human influence has become an issue as many types of (petrochemical) plastics do not biodegrade quickly, as would natural or organic materials. The largest single type of plastic pollution (~10%) and majority of large plastic in the oceans is discarded and lost nets from the fishing industry. Waterborne plastic poses a serious threat to fish, seabirds, marine reptiles, and marine mammals, as well as to boats and coasts.
The short-tailed shearwater or slender-billed shearwater, also called yolla or moonbird, and commonly known as the muttonbird in Australia, is the most abundant seabird species in Australian waters, and is one of the few Australian native birds in which the chicks are commercially harvested. It is a migratory species that breeds mainly on small islands in Bass Strait and Tasmania and migrates to the Northern Hemisphere for the boreal summer.
The flesh-footed shearwater is a medium-sized shearwater. Its plumage is black. It has pale pinkish feet, and a pale bill with a distinct black tip. Together with the equally light-billed pink-footed shearwater, it forms the Hemipuffinus group, a superspecies which may or may not have an Atlantic relative in the great shearwater. These large shearwaters are among those that have been separated into the genus Ardenna. Recent genetic analysis indicates evidence of strong divergence between Pacific colonies relative to those in South and Western Australia, thought to be explained by philopatry and differences in foraging strategies during the breeding season.
Bird conservation is a field in the science of conservation biology related to threatened birds. Humans have had a profound effect on many bird species. Over one hundred species have gone extinct in historical times, although the most dramatic human-caused extinctions occurred in the Pacific Ocean as humans colonised the islands of Melanesia, Polynesia and Micronesia, during which an estimated 750–1,800 species of birds became extinct. According to Worldwatch Institute, many bird populations are currently declining worldwide, with 1,200 species facing extinction in the next century. The biggest cited reason surrounds habitat loss. Other threats include overhunting, accidental mortality due to structural collisions, long-line fishing bycatch, pollution, competition and predation by pet cats, oil spills and pesticide use and climate change. Governments, along with numerous conservation charities, work to protect birds in various ways, including legislation, preserving and restoring bird habitat, and establishing captive populations for reintroductions.
The white-bellied storm petrel is a species of seabird in the family Oceanitidae. It is found in Angola, Argentina, Australia, Brazil, Chile, Ecuador, French Polynesia, French Southern Territories, Maldives, Namibia, New Zealand, Perú, Saint Helena, and South Africa. Its natural habitat is open seas.
The Tahiti petrel is a medium-sized, dark brown and white seabird found across the Pacific Ocean. The species comprises two subspecies: P. r. rostrata which breeds in the west-central Pacific Ocean, and P. r. trouessarti which breeds in the tropical and subtropical Pacific Ocean. The Tahiti petrel belongs to the Procellariidae family and is the most studied member of the Pseudobulweria genus which comprises three critically endangered species. Similarly, the Tahiti petrel is considered near threatened by the 2018 IUCN Red List of Threatened Species. Threats include introduced rats, feral cats, pigs, dogs, nickel mining, and light pollution.
A garbage patch is a gyre of marine debris particles caused by the effects of ocean currents and increasing plastic pollution by human populations. These human-caused collections of plastic and other debris are responsible for ecosystem and environmental problems that affect marine life, contaminate oceans with toxic chemicals, and contribute to greenhouse gas emissions. Once waterborne, marine debris becomes mobile. Flotsam can be blown by the wind, or follow the flow of ocean currents, often ending up in the middle of oceanic gyres where currents are weakest.
Marine plastic pollution is a type of marine pollution by plastics, ranging in size from large original material such as bottles and bags, down to microplastics formed from the fragmentation of plastic material. Marine debris is mainly discarded human rubbish which floats on, or is suspended in the ocean. Eighty percent of marine debris is plastic. Microplastics and nanoplastics result from the breakdown or photodegradation of plastic waste in surface waters, rivers or oceans. Recently, scientists have uncovered nanoplastics in heavy snow, more specifically about 3,000 tons that cover Switzerland yearly.
David Cameron Duffy is an American professor of botany and zoology at the University of Hawaiʻi, former Director of the Hawaiian Pacific Island Cooperative Ecosystem Studies Unit. and currently holds the Gerritt Parmele Wilder Chair in the School of Life Sciences at the University of Hawaiʻi Manoa.
The Pacific Seabird Group (PSG) is an international professional ornithological society based in the US, dedicated to the study and conservation of Pacific seabirds and their environment. The objectives of the Pacific Seabird Group are exclusively scientific, educational, conservational, and nonprofit. In furtherance of these objectives, PSG's principal activities are (1) to increase the amount and quality of scientific research on Pacific seabirds, (2) to educate PSG's members and the general public of the ecology and importance of Pacific seabirds and their environment, (3) to disseminate publications and other information to accomplish this end, and (4) to advocate for the conservation of Pacific seabirds wherever they occur.focusing on the behavior, ecology, and conservation of seabirds.
Microplastics are fragments of any type of plastic less than 5 mm (0.20 in) in length, according to the U.S. National Oceanic and Atmospheric Administration (NOAA) and the European Chemicals Agency. They cause pollution by entering natural ecosystems from a variety of sources, including cosmetics, clothing, food packaging, and industrial processes.
Bedout Island is a small Western Australian island on the Pilbara coast. It lies 42 km offshore from Larrey Point and the mouth of the De Grey River, and 96 km north-east of Port Hedland.
The majority of environmental issues affecting Hawaii today are related to pressures from increasing human and animal population and urban expansion both directly on the islands as well as overseas. These include the unsustainable impacts of tourism, urbanization, implications of climate change such as sea level rise, pollution, especially marine plastic pollution, and invasive species.
Sarah Wanless is an animal ecologist in the UK and is an expert on seabirds; she is a Fellow of the Royal Society of Edinburgh and is Honorary Professor at the Universities of Glasgow and Aberdeen.
Chelsea Marina Rochman is an American marine and freshwater ecologist whose research focuses on anthropogenic stressors in freshwater and marine ecosystems. Since September 2016, Rochman has been an assistant professor at the University of Toronto in the department of Ecology and Evolutionary Biology and a scientific advisor to the Ocean Conservancy.
Jennifer F. Provencher is a Canadian conservation biologist. She is an early-career researcher and a spokesperson for the awareness of plastic contaminants in marine wildlife, pollution and climate change. Many of her work focus on the impact of human activities on the health of Arctic seabirds and marine ecosystems.
Plasticosis is a form of fibrotic scarring that is caused by small pieces of plastic which inflame the digestive tract.
Lindsay Young is an avian conservation biologist who has published over 110 journal articles and technical reports on Pacific Seabirds. She is currently Senior Scientist and Executive Director of the Pacific Rim Conservation. This nonprofit, research-based organization works to restore native seabird populations and ecosystems. She is also the current chair of the World Seabird Union. Young has also served as treasurer for the Pacific Seabird Group, as chair for the North Pacific Albatross Working Group, and as correspondent for the Agreement on the Conservation of Albatrosses and Petrels.
