#abiotic

Greg Cocks @GregCocks@techhub.social

Mapping Antarctica's Hidden Ice-Free Lands - A Blueprint For Conservation
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https://phys.org/news/2025-01-antarctica-hidden-ice-free-blueprint.html <-- shared technical article
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https://doi.org/10.1038/s41597-025-04424-y <-- shared paper / spatial dataset
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#GIS #spatial #inventory #mapping #Antarctic #ecosystems #wilderness #biodiversity #environmental #icefree #landcover #climatechange #humanimpacts #habitat #opendata #bioregional #abiotic #spatialmodel #biogeography #raster #model #modeling #spatialdata #futureproofing

work flow diagram - Amalgamation rules for Bioregional Ecosystem Types. Decision tree for lumping candidate bioregional combinations of Habitat Complex and ACBR into the final Bioregional Ecosystem Types. At least 5% of pixels in the candidate unit in question need to be next to a pixel of another unit to be considered “adjacent”. Red arrows are followed upward if the condition is not met, and green arrows are followed downward if it is.

Graphic representation of the hierarchical classification process. Large, coloured cells (top row) represent Tier 1 Major Environmental Units (E1-E5); nested cells (middle rows) represent Tier 2, Habitat Complexes (including Distinct Overlay Ecosystems); and dark blue circles (bottom row) represent Tier 3, Bioregional Ecosystem Types. Geothermal Major Environmental Units are represented as red, orange, and pink nested cells. Penguin breeding areas are represented as a green cell nested within E1. The Lakes Major Environmental Unit (L) has one Habitat Complex (L1) represented by light blue cells. Antarctic Conservation Biogeographic Regions (ACBRs) in Tier 3 are illustrated by semi-transparent horizontal bands. Numbers and sizes of cells and circles are not to scale and are intended for illustration purposes only. Circles representing Bioregional Ecosystem Types have been placed to indicate that not all combinations exist, and existing combinations vary in size.

maps - Spatial distribution of Habitat Complexes within each Major Environmental Unit (top left to bottom right): E1 mild lowlands; E2 midland mesic environments; E3 midland dry sunny environments; E4 rugged high mountains; E5 highland windy plateaus; and G1-G3 geothermal ecosystems with L1 lake ecosystems. Dark grey pixels on each map indicate distribution of ice-free areas assigned to other Major Environmental Units.

Feb 07, 2025, 22:07 · · 0 · 0

Or M. Bialik @ombialik@mastodon.world

The source of #paleozoic (hemi-) #pelagic calcareous #mud (before the rise modern pelagic calcifiers) has been bugging me, again, recently.
I have seen arguments for calcification of #cyanobacterial filaments, calcareous #dinoflagellates, breakdown of thin-walled fossils, and I'm not negating #abiotic sources.

Does anyone have any thoughts on the topic?

Aug 28, 2024, 16:28 · · 1 · 0

Greg Cocks @GregCocks@techhub.social

Climate Change And Ecosystem Shifts In The Southwestern United States
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https://www.nature.com/articles/s41598-023-46371-x <-- shared paper
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#GIS #spatial #mapping #spatialanalysis #spatiotemporal #USA #southwest #region #ussouthwest #southwestus #ecosystems #change #model #modeling #climatechange #ecosysteminstability #landmanagement #landcover #management #planning #abiotic #bioclimate #terrain #machinelearning #AI #climatemodels #mitigation #preparedness #decisionmaking #informed #informeddecisions #informedchoices

graphic / maps - Spatial depictions of ecosystem suitability values (panel A), describing the conditions required for establishing and maintaining ecosystems (16.7 km2 pixel) during the historical (1970–2000) and mid-century periods (2041–2060) with the BCC-CSM2-MR SSP5-8.5 climate model and emission scenario.

maps - Historical (1970–2000) and mid-century (2041–2080) predictions of ecosystem suitability for 22 ecosystems within the southwestern United States (inset; states clockwise from upper left: Nevada, Utah, Colorado, New Mexico, Arizona (suitability values >= 0.5; coarse depictions)).

maps - Historical (1970–2000), mid-century (2041–2060) and end-of-century (2081–2100) predictions of climate suitability for 6 of 22 ecosystems located in the southwestern United States (inset; states clockwise from upper left: Nevada, Utah, Colorado, New Mexico, Arizona).

photo - author - snow on trees and rocks

Nov 17, 2023, 21:48 · · 1 · 0

American Naturaliﬆ @ASNAmNat@ecoevo.social

When can feedbacks between organisms and their #environment underpin coexistence? And how do #communityDynamics differ when #environmentalVariation is generated by #biotic feedbacks versus #abiotic drivers? We develop simple #theoreticalModels to explore these questions and more.

Article by Zachary R. Miller and Stefano Allesina now available ahead of print!

https://www.journals.uchicago.edu/doi/10.1086/724821

Jul 06, 2023, 21:37 · · 0 · 0

PhoenixSerenity @msquebanh@mastodon.sdf.org

“#Inuit are a #maritime people - we depend on the coast, #ocean and #sea ice for our #FoodSecurity, #culture and #economy, ” Sara Olsvig, ICC’s International Chair, said in a statement.

“From an Inuit perspective, like #HumanRights, all #LivingBeings are #interrelated , #interdependent and #interconnected – when one dimension is #impacted there is a #dynamic cascade amongst #connecting #ecological structures across #abiotic , #biotic and #cultural elements.

https://www.rcinet.ca/eye-on-the-arctic/2023/03/16/un-high-seas-treaty-praised-by-inuit-circumpolar-council/

UN high seas treaty praised by Inuit Circumpolar Council

The Inuit Circumpolar Council (ICC) has applauded the…

www.rcinet.ca

Mar 17, 2023, 00:27 · · 1 · 0

empiricism @empiricism@ecoevo.social

Biosphere, the biotic and abiotic ecosphere.

These are the voyages of the planet Earth.

Its continuing orbit around a bright yellow dwarf star, to evolve new life forms and new civilizations, to "boldly" go around where it.........? erm? went around before.

#space #Biosphere #ecosphere #ecology #biotic #abiotic #cosmos #cosmology #EarthShip #starship #stars #earth #planet #evolution #civilisation #species #music #startrek #comedy #education

A photo of planet Earth from one million miles away (NASA)

For the visually impaired. From space, planet earth looks like a spherical ball. Though technically the shape is an oblate ellipsoid. The predominant colors are the blues of the oceans, the whites and greys of the clouds, and the greens, browns, greys, and whites among others, of the land masses.

Because light and sound are part of the electromagnetic spectrum - someone could imagine that the difference between, for example, white and blue, is similar to the difference between a harmonic set of pitches (musical chords)

It far as we know - Planet Earth may be one of a kind. And yet, the probabilities suggest that somewhere out there in the vastness of space - could be another Earth-like planet that harbors life.

If humans learn to mitigate their intraspecies conflicts, maybe, just maybe, the day will come when we make first contact with whomever "they" are.

Or perhaps humans are alone, or rather that is simply not true - as we have recorded more than 2.13 million species on the planet Earth. https://ourworldindata.org/how-many-species-are-there

But, (some) human activities are driving many species to extinction. https://www.iucnredlist.org/resources/summary-statistics

There is good news. Some thoughtful people have saved many species from the brink of extinction https://www.wechoosenature.org/inspire/10-animals-saved-extinction

Photo. https://www.nasa.gov/image-feature/nasa-captures-epic-earth-image

Dec 04, 2022, 15:16 · · 0 · 0

#abiotic

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