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When the total weight of the insects in each sample was measured a startling decline was revealed. The annual average fell by 76% over the 27 year period, but the fall was even higher – 82% – in summer, when insect numbers reach their peak.
Previous reports of insect declines have been limited to particular insects, such European grassland butterflies, which have fallen by 50% in recent decades. But the new research captured all flying insects, including wasps and flies which are rarely studied, making it a much stronger indicator of decline.
The fact that the samples were taken in protected areas makes the findings even more worrying, said Caspar Hallmann at Radboud University, also part of the research team: “All these areas are protected and most of them are well-managed nature reserves. Yet, this dramatic decline has occurred.”
The stark decline in insect populations has placed the world on a path to “ecological Armageddon,” according to a study.
Researchers from Raboud University in the Netherlands made the discovery following a decades-long study of nature reserves across Germany.
Since 1989, the team has been collecting insect samples across 63 sites using mesh tents known as malaise traps. After measuring each year’s samples by weight, scientists found that the average fell by more than 75 percent over the 27-year period. During the summer months, the fall was measured at around 82 percent.
Insects are essential for life on Earth as they act as pollinators and prey for other species. Increased urbanization, habitat loss and pesticide use are being blamed for the declining population.
Caspar Hallmann, a member of the research team at Radboud, described the figures as “very alarming.”
originally posted by: hopenotfeariswhatweneed
a reply to: 727Sky
The information is out there for those willing to listen, the whole world is changing, there is a massive breakdown going on, all manner of species are disappearing, our ecosystems are collapsing. Its not a pretty picture but not many people care as chasing money is far more important. Sad that we have so much potential as a species yet greed and short sighted behaviours rule......
originally posted by: hopenotfeariswhatweneed
a reply to: 727Sky
The information is out there for those willing to listen, the whole world is changing, there is a massive breakdown going on, all manner of species are disappearing, our ecosystems are collapsing. Its not a pretty picture but not many people care as chasing money is far more important. Sad that we have so much potential as a species yet greed and short sighted behaviours rule......
originally posted by: FlukeSkywalker
originally posted by: hopenotfeariswhatweneed
a reply to: 727Sky
The information is out there for those willing to listen, the whole world is changing, there is a massive breakdown going on, all manner of species are disappearing, our ecosystems are collapsing. Its not a pretty picture but not many people care as chasing money is far more important. Sad that we have so much potential as a species yet greed and short sighted behaviours rule......
Whatever takes care of eliminating the bugs...
originally posted by: SkeptiSchism
originally posted by: hopenotfeariswhatweneed
a reply to: 727Sky
The information is out there for those willing to listen, the whole world is changing, there is a massive breakdown going on, all manner of species are disappearing, our ecosystems are collapsing. Its not a pretty picture but not many people care as chasing money is far more important. Sad that we have so much potential as a species yet greed and short sighted behaviours rule......
Yes but you can't change that. All you can do is refuse to join them.
originally posted by: AMPTAH
Don't insect populations rise and fall in cycles?
I think I read somewhere that all these small creatures have cycles in their population numbers.
Something to do with the interaction with predators.
Goes something like this:
Insects multiply quickly, causing their natural predators to find more food. So, the predator population also rises, until they become so numerous that they begin to eat all the insects. This causes the insects population to fall rapidly. This in turn causes the predators to starve and die off. Then, with the predators greatly diminished, the insects begin to multiply quickly once again.
The cycle repeats over and over.