As avian life is being destroyed more frequently, half of the world's bird species are in decline.
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According to the State of the World's Birds report, 49%
of bird species are in decline and one in eight are threatened with extinction
as a result of human activity and the climate catastrophe.
A conclusive study that presents the most bleak picture yet
of the extinction of avian life claims that over half of all bird species on
the planet are in decline.
73% of species are under pressure from the growth and
intensification of agriculture, according to BirdLife International's State of
the World's Birds report, which is published every four years. The other major
risks are over-exploitation of natural resources, invasive species, logging,
and climate change.
At least 187 bird species have either been confirmed as
extinct or are presumed to have done so since 1500, one in eight are threatened
with extinction, and 49% of bird species worldwide are in decline. Although
there is an increase in birds becoming extinct on greater land, most of these
have been endemic species residing on islands.
In North America, 2.9 billion individual birds (or 29% of
the total) have been wiped out since 1970. The situation is as dire in other
regions of the world; since 1980, 600 million birds (19%) have been wiped out
in Europe, including species that were once in great abundance like the common
swift, common snipe, and rook. The greatest decreases have been seen in
farmland birds in Europe, where 57% of them have vanished as a result of
increased mechanisation, chemical use, and land conversion to agriculture.
Between 2000 and 2016, 43% of Australia's prolific seabird species saw
declines.
BirdLife International's chief scientist, Dr. Stuart
Butchart, stated: "We have to reverse these decreases and get back on the
path to recovery. The fate of the world's birds and our own destiny depend on
it. We will continue to jeopardise our own future if we dismantle the
foundation of life.
Since birds are essential to a balanced environment, their extinction is likely to entail a wide range of unfavourable consequences. Large seeds are dispersed by hornbills in tropical forests, organic waste is disposed of by turkey vultures, and seabirds contribute to the healthy flow of nutrients between the ocean and land.
In 2018, the most recent State of the World's Birds study
indicated that 40% of bird
Since there have been more wildfires and more damage to
formerly undamaged environments, wildfires are discussed more in this report
than in prior ones. Researchers warn that the recent string of heatwaves,
droughts, and floods would cause widespread species extinctions if they continue,
underscoring the necessity of addressing the environment and climate crises
concurrently.
There is mounting evidence that human health is correlated
with bird population health. Given that 70% of zoonotic diseases originate in
wildlife, Covid-19 serves as a cautionary tale for what can happen if we
continue to harm the natural environment. This year, certain bird populations
have experienced dramatic reductions as a result of a highly pathogenic strain
of avian flu, which is a result of intensive farming. In seabird colonies in
the UK, more than 300 outbreaks have been recorded.
The research is released in advance of the Cop15 summit,
which will be held in Montreal in December and offers a once-in-a-decade chance
to draught new legislation to address the biodiversity catastrophe. Butchart
thinks that the results will be incorporated into Montreal's final statement.
Governments must take the crucial action of ensuring the adoption of a truly
ambitious and audacious global biodiversity framework.
This entails expanding the quantity and standard of
protected areas, maintaining the existing habitats, and rehabilitating the
degraded ones. It will be beneficial to stop the illegal killing of birds,
control exotic species, lessen bycatch in fisheries, and avoid overusing
natural resources.
The news is not all bad, though. Without conservation
efforts, between 21 and 32 bird species would have become extinct since 1993,
according to BirdLife. It mentions the development of a brand-new seabird
sanctuary in the North Atlantic that is the size of France and is expected to
safeguard 5 million birds.
Birds in difficulty
One of the biggest raptors in the world is the South
American harpy eagle, which is 1 metre (3 feet) tall and eats sloths and
monkeys. Due to a mixture of forest loss, hunting, poaching, and collisions
with power lines, it was uplisted on the International Union for Conservation
of Nature (IUCN) Red List in 2021 from near threatened to vulnerable. In the
last 60 years, it has fallen by 50%.
A secret bird
In 2020, the sub-Saharan African raptor known as the
secretary bird changed from being vulnerable to endangered due to habitat
deterioration brought on by extensive livestock grazing and grassland burning.
Additionally, birds are caught for the wildlife trade.
smaller florican
The lesser florican, a native to the Indian subcontinent
species whose males engage in leaping rituals to attract females, has had a 90%
fall in population over the past 20 years, primarily due to habitat degradation
in grasslands and the predation of its chicks by stray dogs. It is now
considered to be highly endangered since there are thought to be less than
1,000 mature individuals surviving.
Cuban warbler
Hurricane Dorian in 2019 had a significant negative impact
on the Bahama warbler, notably on Grand Bahama, where it is estimated that 95%
of its habitat was devastated. In 2020, it was declared to be endangered.
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