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#ecosystem

9 posts8 participants0 posts today
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The Kid Should See This 🌈🪐✨

🏞️📅 This Day in #History: John Muir, Father of National Parks

On this day in 1838, John Muir was born in #Scotland. This pioneering naturalist's camping trip with Pres. Theodore Roosevelt in #Yosemite in 1903 helped save the valley from development and strengthened the movement to protect America's natural treasures.

If you've ever visited Northern #California, you've encountered Muir's name on trails, forests, and landmarks—a testament to his enduring legacy in #conservation that continues to influence efforts balancing public access with ecological #preservation across America's 421 national park sites.

👉 Learn more: zurl.co/6gdTt

An animated person stands under a large natural rock arch in a national park with mountains and a river in the background, accompanied by the text "WHY WE NEED NATIONAL PARKS" and the TED-Ed logo.
#TDIH#tksst#video
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nieebel

#CO2-Bepreisung in der #Ökonomie ist ausgereift ✅
Nächstes großes Thema: #Naturschutz, #Biodiversität und sauberes #Trinkwasser.
#Brandeins spricht mit #BerndHansjürgens (#Helmholtz-Zentrum für #Umweltforschung), der sich mit dem ökonomischen Wert der #Natur beschäftigt. Mittlerweile gibt es Einiges:
Maes-Framework (Mapping and Assessment of #Ecosystem and their Services) der #EU, Millennium Ecosystem Assessment der #UN, #Cices (Common International Classification of #Ecosystem Services), #Teeb (The #Economics of Ecosystems and #Biodiversity), #ESVD (Ecosystem Services Valuation Database), #SEEA (System of Environmental-Economic #Accounting), Biodiversity Metric Tool, Biodiversity Credit Price, #BÖP (Brutto-Ökosystemprodukt), #Nature #Capital Project und die #opensource #Software #Invest (Integrated Valuation of Ecosystem Services and Treadeoffs).

"Die Menschen lieben die Natur. Behaupten sie. Und zerstören sie dann doch. Das liegt auch daran, dass ihr ökonomischer Wert lange schwer zu errechnen war. Das ändert sich nun." Text Christoph Koch. Fotografie Stefan Ostermeier. brandeins 04/25 Seite 16
brandeins 04/25 Seite 17+18
brandeins 04/25 Seite 19
brandeins 04/25 Seite 20
#cbam#EuGreenDeal#BIP
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anlomedad

"Satellite-based evidence of recent decline in global forest recovery rate from tree mortality events" by Yuchao Yan et al 2025.
Fascinating and educational. All the more for us in Germany and Finland, and likely other Europeans, whose forests morphed from CO2 sink to source. The study ends with 2020 data tho, Europe with 2018.
Only non-fire mortality events were analyzed.
I learned how recovery after a drought-driven forest mortality event depends on🌡️💧during recovery; not so much the event severity.
nature.com/articles/s41477-025
Free e-pdf provided by one of the authors:
rdcu.be/eigV4

Don't know about you but to me, a paper is particularly "good" if I'm left with a host of new pressing questions. "Why did they..? Was it maybe ..? What if it had been...?"

For a recovery phase, they differentiate between recovery of the canopy greening and recovery of water content in the canopy. Both are based on satellite obs only. And if a satellite image suggests greening is recovered to pre-mortality level, it might not actually be re-greening from recovered old or new young trees but could be merely dense shrubbery. The Greening parameter is often used to glean carbon stock. Shrubs have less biomass=less carbon than trees.
The water content in the canopy then somehow helps to clarify the actual recovery state. How? 🤷‍♀️

Water content in canopy always takes far longer to recover than re-greening.
Longer = years and years longer.
Always = in the 1980s as well. Which I take as: that's the normal baseline behaviour for a given biome, a given latitude zone, a given climate zone, a given elevation, a given human intervention etc.

Supplementary Fig. 5. c and d show numbers for North America and Tropics static-content.springer.com/es .
Recovery Time in years for water in canopy in North America
in the 1990s took 2 - 12, average 6.
in the 2000s took 2 - 18, average 9.

in the Tropics:
in the 1990s took 2 - 12, average 6.
in the 2000s took 2 - 11, average 7.

Europe is missing an extra whiskers plot. Maybe they saved this for their next paper. But European events are included up to 2018, if I got it right.

With all the factors to be considered, and bias in numbers of events in any given factor, making recovery comparable across regions, across biomes, across climate zones, a global average doesn't seem very useful.
However, here are the global numbers from Figure 1d for
Recovery time RT for water in canopy. In the 1980s RT was between 2 and 15, average 8, median 6 .
In the 1990s, RT was 2 - 22, average 8, median 6.
In the 2000s, RT was 2 - 20, average 9, median 9 years.

Am curious wrt the missing potential cause for the greatly reduced RecoveryTime in the 2010s in Fig.1d. Is that an artefact of the shortened observation time for these 10 most recent mortality yrs?
And Greening recovered astonishingly quickly in the 2010s. is it the high CO2 fertilisation or a regional bias from the events in this period?

NatureSatellite-based evidence of recent decline in global forest recovery rate from tree mortality events - Nature PlantsSatellite data show declining global forest recovery from tree mortality since the 1990s, driven by warming and water scarcity. Canopy water recovers slower than greenness, stressing the need for a multifaceted approach to assessing recovery.
#climate#ecosystem#drought
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Licho

Imo the only relevant #species definition for #deextintion is the ecological one. In other contexts this definition is absolutely silly, because it can't distinguish between a #bat and a #bird if they hunt #insects - it defines a species by their ecological #niche.

Under that definition, an elephant with hair is in fact a #mammoth because it's can live in tundra and serve as an umbrella species capable of shaping an entire #ecosystem, serving a unique role in it.

A #dire #wolf is not actually deextinct if it's not serving the ecosystem the way the OG dire wolf used to.
#biology #climate

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David Bender

#Ecosystem #Restoration focused Master of #Landscape #Architecture graduate from #Temple University in #Philly who loves #woodland #wetlands, #aquatic ecosystems, #camping, #hiking, + INDOOR #cats (please keep your cats inside - they decimate native birds + mammals).

Background: Exhibition Design • Educational Programs • Theatre + Puppetry • B.Sc. Industrial Design

Proud union member 💪 Join one today - it's worth the cost! (we won a 40% raise + 25% child insurance subsidy)

A section of the Moss Garden at Bloedel Reserve in Seattle, Washington - designed by Richard Haag. A thin steam winds through fluffy moss mounds in a dark, mature woodland. Ferns and native shrubs frolick in the dappled understory of the tall trees. Photo from: http://www.intercontinentalgardener.com/2011/03/bloedel-reserve-revisited.html
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ScienceCommunicator

#ClimateDiary

Can the #FossilFuel industries be trusted with phasing out the extraction & burning of fossil fuels?

Does, e.g., the "middle aged" \ "retired" couple that owns a diesel camper van know anything about the chemical composition of diesel "fumes"?

Are they aware they're
animals? If they aren't aware that they live in an #ecosystem, how can they know, or care, about that which they don't understand?

Is their psychological misalignment, "disconnection" from #nature, THE problem?

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ScienceCommunicator

Believing that greed or the desire to show off, to "show boat", our wealth, our success to others, is at the root of environmental destruction, isn't 'on point'. Greed, those that show off their wealth (status), are often showing off their ignorance & vanity. Their apathy, their lack of understanding of reality

Generally, the overarching solution to environmental degradation, including #ClimateChange, is that humanity needs to know what & where it is

An animal in an #ecosystem

#nature
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