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U.S. declares more than 20 species extinct after exhaustive searches

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Re: U.S. declares more than 20 species extinct after exhaustive searches

#71

Some comments mentions bringing back species. Well, how would you like to return to a home that is no longer hospitable? Just awful.

How many more species would be classified as extinct if not for zoos?

Wow, quite a few, and this isn't even an exhaustive list https://en.wikipedia.org/wiki/Extinct_in_the_wild

Re: U.S. declares more than 20 species extinct after exhaustive searches

#72
post #14

Earlier quoted context omitted.

How come they don’t investigate WHAT is actually causing this exactly? Yes climate is changing but did it change that much since 80s? What if it’s some pesticide? or some food packaging or something

From the article it sounds like invasive species, plus the fact that we have royally screwed up the local ecosystem. For instance — white-tailed deer are growing exponentially, eating all the underbrush and outcompeting other animals, and they have no/few natural predators left. I agree that not much has changed since the 80s, I think it's just catching up to us now.

plus the parasites that they spread are decimating moose populations yearly

Re: U.S. declares more than 20 species extinct after exhaustive searches

#73
post #14

Earlier quoted context omitted.

How come they don’t investigate WHAT is actually causing this exactly? Yes climate is changing but did it change that much since 80s? What if it’s some pesticide? or some food packaging or something

From the article it sounds like invasive species, plus the fact that we have royally screwed up the local ecosystem. For instance — white-tailed deer are growing exponentially, eating all the underbrush and outcompeting other animals, and they have no/few natural predators left. I agree that not much has changed since the 80s, I think it's just catching up to us now.

> white-tailed deer are growing exponentially

Yes, and worse, some (uninformed people) see the growth of any species as a positive sign that nature is bouncing back, or whatever. When in reality, ecosystems are hugely out of balance and the vast growth of one species is just a spasm as the system shakes itself apart. The knock-on effect of one species's sudden growth spurt may take decades to play out in the shadows, but it is almost assuredly not a good thing.

Re: U.S. declares more than 20 species extinct after exhaustive searches

#74
I am probably just a horrible person, but I just don’t care about the extinction of such specific species. Often a member of one species is practically impossible to tell from a member of a different species save for where the individual was found. I care a lot more if “crows” are endangered than if “efitz’ southeastern marble crested crow” is endangered. [ed: spelling]

Also, I suspect that such narrowly defined species go extinct rather frequently; it’s sad that human destruction of habitats contributed but as a species we Homo sapiens outcompeted them and made the world better (in someone’s point of view) for Homo sapiens, or we wouldn’t have been developing the land in the first place.

In policy setting I would strongly prefer that we look at things less granularity than the species, at least for small animals.

Re: U.S. declares more than 20 species extinct after exhaustive searches

#75
post #4

This is super depressing, it's crazy to see how much the flora/fauna have changed locally in my lifetime. It makes me wonder how much worse it actually is. Is looks like most of these were initially listed in the 80s, not too long after Endangered Species Act passed. Is there some sort of time limit before they officially declare something extinct?

How come they don’t investigate WHAT is actually causing this exactly? Yes climate is changing but did it change that much since 80s? What if it’s some pesticide? or some food packaging or something

It is usually just plain old development destroying their habitats. Suburbs, highways, logging etc. destroy their home and the species dies out.

Re: U.S. declares more than 20 species extinct after exhaustive searches

#76

Earlier quoted context omitted.

How come they don’t investigate WHAT is actually causing this exactly? Yes climate is changing but did it change that much since 80s? What if it’s some pesticide? or some food packaging or something

> How come they don’t investigate WHAT is actually causing this exactly? Who exactly do you believe should be studying causes of species extinction but is not doing it?

Us!

Re: U.S. declares more than 20 species extinct after exhaustive searches

#77
post #19

I like to think that the Hawaiian practice of using native bird feathers for large and elaborate cloaks might let us pursue de-extinction through DNA extraction and cloning: https://en.wikipedia.org/wiki/%CA%BBAhu_%CA%BBula Just think about how many individual birds' feathers contributed towards making these. And we know plenty of the yellow feathers are from the Kauaʻi ʻōʻō bird which was declared extinct. The Kauaʻ…

I love that the answer is always more technology will save us. Whether it's carbon removal advances or cloning, we just look towards future advancements instead of cleaning up our act. I understand that expecting some sort of big shift in how we live is not feasible, it's just a shame.

Has worked so far though with all constraints (political, economic, and scientific).

Re: U.S. declares more than 20 species extinct after exhaustive searches

#78

Someday we’re going to hit the cascade point, where we’ve simultaneously and severely damaged or disrupted so many ecosystems that they won’t be able to recover and it all just collapses.

The future is here already, it's just not evenly distributed. There are countless examples of local ecosystems that have been entirely decimated as a direct result of human activity. It's been going on for millenia. The Tigris/Euphrates river region used be a lush, fertile paradise. Thousands of years of human agriculture has turned it into what it is today.

Clear-cutting of forests throughout North America, Britain, New Zealand are other examples. Recent collapses of kelp forests off the coast of California. Not to mention coral reefs dying and the great desertification of western China.

It's happening all over. It's here now.

Re: U.S. declares more than 20 species extinct after exhaustive searches

#79
post #56

Earlier quoted context omitted.

I guarantee you that when the technology exists to bring back some of these species via cloning or genetic engineering, they will have some habitat restored once they are ready to re-introduce them. Otherwise it would be a complete waste of time and money.

I think the comment it more about what if we have technology but no space for resurrected species?

Then we wait until we have the space. There is no deadline to meet.
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