Wildlife fell 73% since 1970
1h
WWF said monitored populations of wild vertebrates worldwide fell an average 73% since 1970, with freshwater wildlife hit hardest, though conservation can reverse declines.
by James M. Bullock Reposted by Stephanie Schelfhout
But the abiding message of this report is that nature continues to decline & conservation is not enough
Humans need to change how we live & how we exploit the planet
Tell it how it is, please
www.bbc.co.uk/news/article...
But the abiding message of this report is that nature continues to decline & conservation is not enough
Humans need to change how we live & how we exploit the planet
Tell it how it is, please
www.bbc.co.uk/news/article...
But the abiding message of this report is that nature continues to decline & conservation is not enough
Humans need to change how we live & how we exploit the planet
Tell it how it is, please
www.bbc.co.uk/news/article...
We can manage our native fishes better and hope this might be a good first step.
Speaking for myself - I want these species, including the giants (e.g., alligator gar, pic 👇) around in the future.
@solomonrdavid.bsky.social
We can manage our native fishes better and hope this might be a good first step.
Speaking for myself - I want these species, including the giants (e.g., alligator gar, pic 👇) around in the future.
@solomonrdavid.bsky.social
www.bbc.co.uk/news/article...
www.bbc.co.uk/news/article...
We compiled a massive P/B dataset: 301 studies, 105 freshwater fish species, and 1,364 populations.
P/B is primarily a function of maximum lifespan. Thus, the longer, a species lives, the slower its replacement. Makes sense!
For species with replicated data, this relationship has an R² = 0.90.
We compiled a massive P/B dataset: 301 studies, 105 freshwater fish species, and 1,364 populations.
P/B is primarily a function of maximum lifespan. Thus, the longer, a species lives, the slower its replacement. Makes sense!
For species with replicated data, this relationship has an R² = 0.90.
Reposted by David Underdown
Today The Bank of England has announced which wildlife species will be stepping into the spotlight on our new notes.
And the winners are:
🦉 Barn Owl
🦔 European Hedgehog
🐝 Buff-tailed Bumblebee
🐧 Atlantic Puffin
Four important and iconic species.
Today The Bank of England has announced which wildlife species will be stepping into the spotlight on our new notes.
And the winners are:
🦉 Barn Owl
🦔 European Hedgehog
🐝 Buff-tailed Bumblebee
🐧 Atlantic Puffin
Four important and iconic species.
Reposted by Charles West
Some fishes labeled "rough fish" live for astonishingly long periods.
The longevity dataset ranged 2 years for a Black Bullhead population to 148 (!!!) years for Bigmouth Buffalo (pic 👇).
And long lifespans mean slow replacement.
But yet, our bag limits for these species remain unlimited?
Some fishes labeled "rough fish" live for astonishingly long periods.
The longevity dataset ranged 2 years for a Black Bullhead population to 148 (!!!) years for Bigmouth Buffalo (pic 👇).
And long lifespans mean slow replacement.
But yet, our bag limits for these species remain unlimited?
Reposted by Rebecca Sear
The idea here is simple. When we harvest fishes (or any animal), we should know how quickly biomass is replaced?
Ecologists have a metric for this - the production/biomass or P/B ratio.
High P/B = fast replacement, Low P/B = slow replacement.
This tells you soo much about sustainable harvest!
The idea here is simple. When we harvest fishes (or any animal), we should know how quickly biomass is replaced?
Ecologists have a metric for this - the production/biomass or P/B ratio.
High P/B = fast replacement, Low P/B = slow replacement.
This tells you soo much about sustainable harvest!