The phrase
"mortality event" refers to a situation where there is a significant increase in deaths among a particular group of living things, such as humans, animals, or plants. It means that more individuals than usual are dying within a specific period of time.
Full definition
Prior to the earthquake,
mass mortality events had dramatically altered the reef ecosystem over the course of 25 years.
Now, as part of an ongoing investigation into the Unusual
Mortality Event of California sea lions by a team of NOAA scientists and private partners, researchers may have an explanation.
Since the year 2000, industrial wind turbines have overtaken all other causes for mass
mortality events for bats in North America and Europe.
Abstract: Thermal stress from the 2015 - 2016 El Niño triggered the worst global bleaching and mass coral
mortality event on record.
«To our knowledge, this is the greatest coral mass
mortality event at a single location on record.»
In addition to White Nose Syndrome, deaths connected to collisions with wind turbines are now the leading cause of
multiple mortality events in bats (O'Shea et al., 2016).
Professor Gary Shaffer of the Niels Bohr Institute, University of Copenhagen, who is the leader of the research team at the Danish Center for Earth System Science (DCESS), explains that «such expansion would lead to increased frequency and severity of fish and
shellfish mortality events, for example off the west coasts of the continents like off Oregon and Chile».
A new study published in the peer - reviewed journal PeerJ introduces modern techniques to better understand the landmark site's history, suggesting that the quarry represents numerous
mortality events which brought the dinosaurs to the site over time, rather than a single fatal event.
Mass strandings of whales have long puzzled observers, who wonder about the causes of such simultaneous and often large -
scale mortality events.
«If you go up to five
tree mortality events a century for trees that take decades to grow and establish, it's tough for these trees.»
«But everyone thought with the Great Barrier Reef marine protected area that, hopefully, we wouldn't
see mortality events as high.»
During this period, major disturbances occurred throughout the entire California Current ecosystem
including mortality events of sea lions, fur seals, common murres, and Cassin's auklets, as wellasa persistent toxic algae bloom that affected the clam harvest season and the crab, sardine, and anchovy fishing seasons.
There, an
unexplained mortality event of shocking scope has brought the fragility of life for marine mammals in the 21st century into stark relief, and in a certain way, set the stage for this year's deliberations.
Bycatch reached a record high last July, when a mass
mortality event left 483 loggerheads stranded on just one stretch of beach — a 600 percent increase over previous years» averages.
This right whale — the latest casualty in an ongoing
unusual mortality event in which 18 animals have died — was found floating, dead, off the coast of Virginia in January.
She chaired the Working Group on Marine Mammal Unusual
Mortality Events for six years, served on U.S. recovery teams for the Hawaiian monk seal and southern sea otter, and currently is a member of the international recovery team for the vaquita (CIRVA).
However NOAA's statement stands in stark contrast to coral experts who reported the January 2010 cold snap was the worst coral bleaching and
mortality event on record for Florida's Reef Tract.
The mass
mortality event at Christmas Island is believed to be one of the worst casualties of the ongoing global bleaching event.
«Such expansion would lead to increased frequency and severity of fish and
shellfish mortality events, for example off the west coasts of the continents like off Oregon and Chile», says Shaffer.
Jurgens said that is all the more reason why documenting such
mass mortality events is important to better understand — and prepare for — trends happening to ocean ecosystems.
«The evidence to date indicates that the Deepwater Horizon oil spill and associated compounds caused the adrenal and lung lesions which contributed to the increased deaths as part of this unusual
mortality event.»
So alarming was the toll that the National Oceanic and Atmospheric Administration (NOAA) declared the die - offs to be an «unusual
mortality event» and released federal funds to shore up an investigation.
NOAA officials had already declared it an «unusual
mortality event» and had been taking samples from dead dolphins to investigate the cause.
Saigas on the brink: Multidisciplinary analysis of the factors influencing mass
mortality events.
Dolphin deaths are being monitored by an ongoing Unusual
Mortality Event (UME) survey, which began in response to high numbers of adult dolphins dying during a period of sustained cold weather in early 2010.
«In other parts of the world, we've had
mortality events this severe,» Kline said.
In March of 2015, an unusually high number of sea lions pups were stranded on California beaches during an Unusual
Mortality Event (UME), a sad phenomenon that is reaching a record - breaking high.
These sea lions are part of California's unusual
mortality event (UME), during which more than 3,000 starving sea lion pups have been found stranded.
The scene on the Channel Islands this year is grave, worse even than what researchers saw in 2012, before the Unusual
Mortality Event in 2013 that resulted in the strandings of about 1,600 sea lions.
Eastern North Pacific gray whale (Eschrichtius robustus) unusual
mortality events, 1999 - 2000.
Novel anellovirus discovered from
a mortality event of captive California sea lions.
Gray whale strandings, health evaluations and an unusual
mortality event in 1999 - 2000.
The Act also formalized the marine mammal health and stranding response program to improve the response of stranding and unusual
mortality events.
Following the 2007 ship strikes, NMFS designated the situation as an Unusual
Mortality Event (UME).
These pups are survivors of California's current unusual
mortality event (UME), which has left more than 3,000 starving sea lions along California's beaches this year alone.
Researchers suggest that warming is amplifying the size and severity of wildfire - and drought -
mortality events and decreasing snow pack levels [8]--[11].