Falling insect species

Insects are dying at a high rate every year, but it is difficult to estimate an accurate number, because it is a challenge to gather data for millions of species around the world. In a new-to-me series, Reuters broke it down:

The world has lost 5% to 10% of all insect species in the last 150 years — or between 250,000 and 500,000 species, according to a February 2020 study in the journal Biological Conservation. Those losses are continuing, though estimates vary due to patchy data as well as uncertainty over how many insects exist.

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Animal extinction over time

Animals are going extinct at a faster rate. Reuters shows a developing pattern across species:

Losing hundreds of species over 500 or so years may not seem significant when there are millions more still living on the planet. But in fact, the speed at which species are now vanishing is unprecedented in the last 10 million years.

“We are losing species now faster than they can evolve,” O’Brien said.

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Disappearing animals as a matrix of dots

Reddit user WhiteCheeks used dot density to show population counts of various animals. Each dot represents an animal. So animals with lower counts show less obviously.

This is similar to the use of pixelation to show endangered species, which I think works better since the size of the dots above don’t encode anything.

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Extinctions and animal species at risk

A Disappearing Planet

Data journalist Anna Flagg for ProPublica reported on animal species at higher risk of extinction.

Animal species are going extinct anywhere from 100 to 1,000 times the rates that would be expected under natural conditions. According to Elizabeth Kolbert's The Sixth Extinction and other recent studies, the increase results from a variety of human-caused effects including climate change, habitat destruction, and species displacement. Today's extinction rates rival those during the mass extinction event that wiped out the dinosaurs 65 million years ago.

The data has an interesting organization. Think back to sixth-grade science and remember that animals are grouped in a hierarchy of order, family, genus, and species. This hierarchy is represented with horizontal bars on the bottom, vertical line pointers, vertical bars, and elements within each bar, respectively.

Once you get down to the genus level (vertical bars), the interactive gets kind of tough to use unless you search for a specific species. I want some filters or some breakout sections to highlight spots to look at. However, as a tool for those closer to the challenge, this seems like it could be quite useful.

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