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Morning Brief Global edition

September 27, 2026 · Issue 017

Today’s strongest thread is that ecological function keeps escaping the categories we use to summarize landscapes. Guinea baboon connectivity drops across intensive cropland while remaining more permeable through heterogeneous mosaics; an intact Australian wetland chamber finds nitrogen processing in crab burrows, roots and vegetation that conventional cores often exclude; Lower Amu Darya tugai forests are degrading most sharply where floodplain hydrology and salinity have shifted; and Pacific adaptation evidence shows that “traditional knowledge” is not a single input when knowledge, labor and authority are gendered. Across fire, freshwater, disease surveillance, cities and forestry, the useful unit is repeatedly the process underneath the headline metric.

Land Manager Watch

Evidence for decisions on land, water and habitat

Peer-reviewed · Zhejiang Province, China

Heavy thinning increased short-term growth while shrinking one dimension of functional diversity

Three years after treatment in a Zhejiang secondary forest, heavy thinning raised species diversity and biomass growth but reduced functional richness—so the management response depends on which objective is being measured.

Management read

For managers, ‘more diversity’ and ‘more growth’ are not single outcomes. Thinning intensity can move species diversity, trait-space occupancy, structure and productivity in different directions, so the prescription should follow the objective and be evaluated with more than basal-area growth alone.

Caveat / uncertainty: These are three-year responses in one regional forest type and may represent transient post-thinning dynamics rather than a stable endpoint. Higher short-term biomass growth does not establish long-term resilience or biodiversity benefit, and the loss of functional richness is a material tradeoff rather than noise.

Read the full evidence, caveats & Land Manager analysis →

Editorial thread to watch

Three patterns recur. First, measurement architecture matters: intact wetland chambers, hourly fire-weather indices, lifetime isotope records and dynamic disease-surveillance tables reveal processes that daily averages, destructive cores or one-time counts can miss. Second, persistence matters as much as initial response: residential water audits produced a strong short-run conservation effect that disappeared within months, while urban connectivity benefits can change when ecological and evolutionary feedbacks are allowed to operate. Third, management moves objectives in different directions. Heavy thinning increased short-term growth and several diversity metrics while reducing functional richness, and cypress humification tracked litter substrate and microclimate more strongly than a simple treatment label. Good ecological decisions need the mechanism, timescale and tradeoff—not only a category that sounds favorable.

Priority Reads

The evidence that deserves a closer look.

Image placeholder · Rights-cleared imagery pending
Peer-reviewed Africa

Intensive cropland is showing up as a connectivity barrier for Guinea baboons

Range-wide landscape genetics found heterogeneous savanna–forest mosaics and river systems more permeable than intensive agriculture, with the Gambian populations carrying the lowest diversity and highest inbreeding.

Evidence
Peer-reviewed
Geography
West Africa; Guinea baboon range
System
Savanna, forest–agriculture mosaics and riverine corridors

WHAT THE EVIDENCE SAYS

Researchers genotyped 243 non-invasively collected fecal samples across the Guinea baboon range. Genetic diversity was positively associated with shrublands and forest–savanna mosaics; rivers, grasslands and shrublands were associated with functional connectivity, while intensive cropland and large water bodies acted as stronger resistance. Forest–cropland mosaics were more permeable than strict monocultures.

WHY IT MATTERS / OUR READ

The useful conservation unit is the landscape matrix, not simply the amount of habitat left. In a species able to use human-modified landscapes, heterogeneous working lands and riverine corridors may retain connectivity that intensive monocultures do not.

CAVEATS / UNCERTAINTY

Landscape-genetic resistance models infer potential connectivity rather than observing contemporary dispersal directly. Genetic structure also integrates historical demography and past landscapes, and the diversity–environment analysis had limited power across only ten geographic demes; the study does not prove that converting an individual farm to agroforestry will restore gene flow.

SOURCE

Heredity
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Peer-reviewed

An intact wetland chamber found nitrogen processing where conventional cores often leave the habitat out

In a low-disturbance Australian mangrove–saltmarsh, crab burrows, pneumatophores and vegetation contributed to nitrogen pathways that destructive sampling can underrepresent.

Evidence
Peer-reviewed
Geography
Woogoompah Island, southern Moreton Bay, Queensland, Australia
System
Mangrove–saltmarsh tidal wetland

WHAT THE EVIDENCE SAYS

A new in-situ intact-chamber method preserved crab burrows, mangrove pneumatophores, saltmarsh vegetation and bare sediment while measuring nitrogen transformations. Whole-system denitrification was estimated at 17.1 kg N ha−1 yr−1 versus 2.5 kg N ha−1 yr−1 recycled through DNRA; no anammox was detected. Rates were lower than many more nutrient-enriched mangrove–saltmarsh systems.

WHY IT MATTERS / OUR READ

The measurement unit changes the ecological story. If monitoring removes the structures where exchange and microbial processing occur, it can systematically misrepresent how a wetland handles nutrients; intact-structure methods can therefore improve process-based restoration and water-quality assessment.

CAVEATS / UNCERTAINTY

This is a method demonstration in one low-disturbance wetland, not a replicated comparison of restoration strategies. Annualized rates depend on spatial and seasonal extrapolation, and low nutrient availability at this site limits transferability to more disturbed or nutrient-rich coasts.

SOURCE

Journal of Geophysical Research: Biogeosciences
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Peer-reviewed

Lower Amu Darya tugai forests are degrading most sharply where floodplain conditions have changed

Across 312 vegetation descriptions, the river delta showed the strongest salinization and replacement of poplar communities, while the least regulated upper segment retained the lowest transformation.

Evidence
Peer-reviewed
Geography
Lower Amu Darya River, Uzbekistan / Aral Sea basin
System
Tugai floodplain and riparian forests

WHAT THE EVIDENCE SAYS

An analysis of 312 geobotanical descriptions across four Lower Amu Darya valley segments found the strongest vegetation transformation in the delta, where salinization is intensifying and halophytic shrubs, herbs and ruderal annuals are replacing poplar communities. The upper segment, lacking hydraulic structures, retained more natural floodplain conditions and lower transformation; regulated middle reaches were intermediate.

WHY IT MATTERS / OUR READ

Riparian forest condition cannot be read separately from river regime and salinity. For tugai systems, conserving tree cover without preserving the hydrologic processes that sustain floodplain vegetation risks protecting the appearance of a forest while losing the conditions that regenerate it.

CAVEATS / UNCERTAINTY

This is an observational spatial comparison, not a controlled hydrologic experiment. Regulation, salinity, climate aridification and land-use history covary, so differences among river segments do not isolate a single causal driver; projected negative trends are forecasts rather than measured future outcomes.

SOURCE

Acta Biologica Sibirica
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Peer-reviewed

‘Traditional knowledge’ is not one input when knowledge, labor and authority are gendered

A Pacific Islands review finds adaptation knowledge distributed through different roles and responsibilities—and warns that formal inclusion can still overlook who holds and transmits it.

Evidence
Peer-reviewed
Geography
Pacific Island communities; emphasis on Fiji, Tonga, Samoa and Kiribati
System
Small-island social–ecological systems

WHAT THE EVIDENCE SAYS

A critical narrative review organizes Pacific evidence across food and agriculture, water and marine management, disaster-risk awareness, caregiving and recovery. It finds complementary gendered knowledge and roles, while women's ecological expertise and recovery work are frequently undervalued in formal decision-making.

WHY IT MATTERS / OUR READ

Locally led adaptation is not strengthened merely by adding a generic ‘traditional knowledge’ box to a plan. Governance has to identify who actually holds particular knowledge, who performs the work, who has decision authority and whose knowledge is systematically excluded.

CAVEATS / UNCERTAINTY

This is a critical narrative review rather than a quantitative effectiveness meta-analysis. Evidence is uneven across the Pacific, concentrated in several high-island contexts, based largely on localized qualitative studies and restricted to English-language literature; findings should not be flattened into a universal Pacific gender model.

SOURCE

Regional Environmental Change
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Global Radar

A wider field of view.

  1. Peer-reviewed Global

    Predators can learn a novel prey—and that learning can reverse who wins indirect competition

    EvidencePeer-reviewedGeographyTheoretical / globally applicableSystemPredator–prey communities WHAT THE EVIDENCE SAYS A one-predator/two-prey model shows that novel prey can gain a temporary refuge from naïve predators and become the stronger apparent competitor. Faster social learning erodes that refuge

    Evidence
    Peer-reviewed
    Geography
    Theoretical / globally applicable
    System
    Predator–prey communities

    WHAT THE EVIDENCE SAYS

    A one-predator/two-prey model shows that novel prey can gain a temporary refuge from naïve predators and become the stronger apparent competitor. Faster social learning erodes that refuge and can permit coexistence; under cycling dynamics, the same mechanism can even generate apparent mutualism or apparent predation.

    WHY IT MATTERS / OUR READ

    Social learning is not just individual behavior in this model; it changes community-level outcomes. That makes predator experience a plausible missing state variable when managers interpret invasion or prey-switching dynamics.

    CAVEATS / UNCERTAINTY

    This is theory, not a field test. Outcomes depend on model structure and learning assumptions and should generate empirical hypotheses rather than be treated as a management prescription.

    SOURCE

    Ecology
    View original evidence ↗

    Read the Wild Lands assessment
  2. Peer-reviewed Europe

    Fire-weather risk changes when the clock moves from daily to hourly

    EvidencePeer-reviewedGeographyPortugal and Spain / Iberian PeninsulaSystemFire-prone Mediterranean landscapes WHAT THE EVIDENCE SAYS High-resolution Meso-NH simulations across three active-fire periods produced an hourly Fire Weather Index with a pronounced diurnal cycle and sensitivity to near-surface meteorology

    Evidence
    Peer-reviewed
    Geography
    Portugal and Spain / Iberian Peninsula
    System
    Fire-prone Mediterranean landscapes

    WHAT THE EVIDENCE SAYS

    High-resolution Meso-NH simulations across three active-fire periods produced an hourly Fire Weather Index with a pronounced diurnal cycle and sensitivity to near-surface meteorology that daily summaries suppress.

    WHY IT MATTERS / OUR READ

    Fire operations and ecological exposure occur within hours, not daily averages. Finer temporal resolution may improve when and where managers recognize short-lived dangerous windows.

    CAVEATS / UNCERTAINTY

    The study evaluates modeled fire-weather conditions over three fire periods; FWI is a hazard index, not direct fire behavior, burned area or ecological severity, and model performance may not transfer unchanged to other regions.

    SOURCE

    Scientific Reports
    View original evidence ↗

    Read the Wild Lands assessment
  3. Peer-reviewed Europe

    Salt-marsh microbial communities barely reorganized across a summer day despite large oxygen swings

    EvidencePeer-reviewedGeographyVenice Lagoon, ItalySystemSalt-marsh sediments WHAT THE EVIDENCE SAYS Across sunset, night, dawn and solar noon at two Venice Lagoon marshes, temperature and dissolved oxygen oscillated strongly while prokaryotic and eukaryotic community composition shifted only modestly. Metagenomes indicated functionally

    Evidence
    Peer-reviewed
    Geography
    Venice Lagoon, Italy
    System
    Salt-marsh sediments

    WHAT THE EVIDENCE SAYS

    Across sunset, night, dawn and solar noon at two Venice Lagoon marshes, temperature and dissolved oxygen oscillated strongly while prokaryotic and eukaryotic community composition shifted only modestly. Metagenomes indicated functionally redundant communities capable of organic-matter degradation, sulfur cycling, denitrification and chemolithoautotrophic carbon fixation.

    WHY IT MATTERS / OUR READ

    Short-term environmental variability does not always imply equally rapid community turnover. For monitoring, a stable taxonomic snapshot may coexist with substantial shifts in activity and chemistry.

    CAVEATS / UNCERTAINTY

    The sampling spans one summer diel cycle at two marshes. Metabarcoding and metagenomic potential do not directly quantify moment-to-moment metabolic rates, and seasonal or disturbance-scale responses may differ.

    SOURCE

    Microbial Ecology
    View original evidence ↗

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  4. Peer-reviewed Europe

    European river sites with active beavers held more fireflies—but the causal bridge is still untested

    EvidencePeer-reviewedGeographyMerse River, Italy; Danube River, SlovakiaSystemRiparian river and beaver-engineered wetland habitats WHAT THE EVIDENCE SAYS Standardized nocturnal surveys recorded 623 fireflies across beaver and control sites in two river systems. Beaver occurrence was the consistent significant predictor of

    Evidence
    Peer-reviewed
    Geography
    Merse River, Italy; Danube River, Slovakia
    System
    Riparian river and beaver-engineered wetland habitats

    WHAT THE EVIDENCE SAYS

    Standardized nocturnal surveys recorded 623 fireflies across beaver and control sites in two river systems. Beaver occurrence was the consistent significant predictor of higher observed firefly counts in the fitted models, with the signal driven mostly by males.

    WHY IT MATTERS / OUR READ

    The result makes ecosystem engineering a useful hypothesis for invertebrate habitat, not just vertebrate or hydrologic outcomes. Beaver-created moisture and structural heterogeneity may affect taxa that conventional beaver monitoring rarely measures.

    CAVEATS / UNCERTAINTY

    This is an observational, small-spatial-scale comparison rather than a randomized beaver experiment. Counts were strongly male-biased, females and larvae were sparsely detected, and river/species context complicates causal attribution; higher counts do not establish population growth.

    SOURCE

    Journal of Insect Conservation
    View original evidence ↗

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  5. Government data Arctic

    The 2026 Arctic sea-ice minimum tied for the tenth-lowest satellite-era extent

    EvidenceGovernment dataGeographyArctic OceanSystemArctic sea ice WHAT THE EVIDENCE SAYS NASA and NSIDC report that Arctic sea ice reached its 2026 annual minimum on September 12 at about 4.6 million km², tied with 2008, 2010 and 2025 for the tenth-

    Evidence
    Government data
    Geography
    Arctic Ocean
    System
    Arctic sea ice

    WHAT THE EVIDENCE SAYS

    NASA and NSIDC report that Arctic sea ice reached its 2026 annual minimum on September 12 at about 4.6 million km², tied with 2008, 2010 and 2025 for the tenth-lowest minimum in the continuous satellite record. The years 2007–2026 contain the 20 lowest annual minima since observations began in 1978.

    WHY IT MATTERS / OUR READ

    One relatively less-extreme annual minimum does not reset the baseline. The current record is better read as year-to-year weather variability occurring within a persistently low-ice era.

    CAVEATS / UNCERTAINTY

    This is a current observational update, not a mechanistic attribution study. Annual minimum extent is one sea-ice metric and does not describe thickness, age, regional distribution or ecological effects on its own.

    SOURCE

    NASA / NSIDC
    View original evidence ↗

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  6. Peer-reviewed Europe

    Large pike connected littoral and pelagic food webs by changing diets through life

    EvidencePeer-reviewedGeographyLake Bourget, FranceSystemLarge lake littoral and pelagic food webs WHAT THE EVIDENCE SAYS Sequential stable-isotope measurements from eye lenses of 17 large pike reconstructed lifetime resource use. Every fish showed a major littoral-to-pelagic dietary shift, but

    Evidence
    Peer-reviewed
    Geography
    Lake Bourget, France
    System
    Large lake littoral and pelagic food webs

    WHAT THE EVIDENCE SAYS

    Sequential stable-isotope measurements from eye lenses of 17 large pike reconstructed lifetime resource use. Every fish showed a major littoral-to-pelagic dietary shift, but the timing and extent differed among individuals; median lifetime littoral reliance was 52.5%.

    WHY IT MATTERS / OUR READ

    Food-web coupling can be generated by ontogeny rather than by a species occupying the same trophic role throughout life. Population models that average individuals may hide when and how top predators move energy between habitats.

    CAVEATS / UNCERTAINTY

    The study is retrospective and based on 17 large pike from one lake. Eye-lens isotope trajectories infer resource pathways rather than directly tracking movement, and results should not be generalized to all pike populations or lake types.

    SOURCE

    Freshwater Biology
    View original evidence ↗

    Read the Wild Lands assessment
  7. Government data North America

    The U.S. mammal H5N1 detection table is still changing—and still incomplete

    EvidenceGovernment dataGeographyUnited StatesSystemWildlife, captive mammals and avian-influenza surveillance WHAT THE EVIDENCE SAYS USDA APHIS updated its mammal HPAI detections page on September 25. The table includes recent 2026 detections in mammals and explicitly warns that data may be incomplete

    Evidence
    Government data
    Geography
    United States
    System
    Wildlife, captive mammals and avian-influenza surveillance

    WHAT THE EVIDENCE SAYS

    USDA APHIS updated its mammal HPAI detections page on September 25. The table includes recent 2026 detections in mammals and explicitly warns that data may be incomplete and that additional detections will be added.

    WHY IT MATTERS / OUR READ

    The useful signal is surveillance breadth, not a claim of sustained mammal transmission. A dynamic cross-species detection ledger helps identify where wildlife, domestic animals and disease-monitoring systems intersect.

    CAVEATS / UNCERTAINTY

    Detection does not establish onward mammal-to-mammal transmission, population-level impact or a complete incidence picture. The federal table is explicitly incomplete and is updated as reports arrive.

    SOURCE

    USDA APHIS
    View original evidence ↗

    Read the Wild Lands assessment
  8. Peer-reviewed Africa

    Outbreak genomics can narrow antibody hypotheses before it can establish treatment efficacy

    EvidencePeer-reviewedGeographyDemocratic Republic of the Congo and UgandaSystemBundibugyo virus outbreak / One Health disease system WHAT THE EVIDENCE SAYS Researchers analyzed 44 Bundibugyo virus sequences, including 12 from the 2026 outbreak, and used genomic and structural analyses to assess how existing

    Evidence
    Peer-reviewed
    Geography
    Democratic Republic of the Congo and Uganda
    System
    Bundibugyo virus outbreak / One Health disease system

    WHAT THE EVIDENCE SAYS

    Researchers analyzed 44 Bundibugyo virus sequences, including 12 from the 2026 outbreak, and used genomic and structural analyses to assess how existing Ebola monoclonal antibodies may bind the outbreak glycoprotein.

    WHY IT MATTERS / OUR READ

    Rapid genomic analysis can prioritize which countermeasures deserve laboratory and clinical attention during an outbreak, shortening the hypothesis space before definitive efficacy evidence exists.

    CAVEATS / UNCERTAINTY

    The paper predicts antibody binding and potential efficacy; it does not demonstrate clinical effectiveness in patients. The published version is an early peer-reviewed article that remains subject to editorial replacement by the final version of record.

    SOURCE

    Nature Communications
    View original evidence ↗

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  9. Peer-reviewed

    In cypress plantations, litter substrate explained more humification variation than the management label

    EvidencePeer-reviewedGeographySichuan Basin, ChinaSystemSubtropical Cupressus funebris plantations WHAT THE EVIDENCE SAYS A 1,277-day litterbag study compared four plantation stands under different management histories. Strip thinning and filling showed higher humus carbon and humification degree and less-negative humus-

    Evidence
    Peer-reviewed
    Geography
    Sichuan Basin, China
    System
    Subtropical Cupressus funebris plantations

    WHAT THE EVIDENCE SAYS

    A 1,277-day litterbag study compared four plantation stands under different management histories. Strip thinning and filling showed higher humus carbon and humification degree and less-negative humus-carbon change than artificial gaps in exploratory contrasts, while litter substrate explained the largest share of modeled humification variation.

    WHY IT MATTERS / OUR READ

    Belowground carbon pathways can respond differently from visible stand structure. For management evaluation, litter identity, microclimate and decomposition stage may matter as much as the categorical treatment name.

    CAVEATS / UNCERTAINTY

    Each management practice was represented by only one stand; plots were nested subsamples, not independent stand-level replicates. The authors explicitly treat treatment contrasts as exploratory, and several global management effects were non-significant, so the result cannot support a broad prescription for strip thinning.

    SOURCE

    Frontiers in Soil Science
    View original evidence ↗

    Read the Wild Lands assessment
  10. Peer-reviewed Latin America & Caribbean

    An Atacama microbial consortium contains more genomic novelty than a culture label would suggest

    EvidencePeer-reviewedGeographyQuebrada Talabre, Atacama Desert, ChileSystemHigh-altitude hyperarid desert microbial consortium WHAT THE EVIDENCE SAYS Deep shotgun metagenomics of an enriched cyanobacteria-associated consortium reached 99.7% estimated community coverage and recovered 14 high-quality metagenome-assembled genomes across five

    Evidence
    Peer-reviewed
    Geography
    Quebrada Talabre, Atacama Desert, Chile
    System
    High-altitude hyperarid desert microbial consortium

    WHAT THE EVIDENCE SAYS

    Deep shotgun metagenomics of an enriched cyanobacteria-associated consortium reached 99.7% estimated community coverage and recovered 14 high-quality metagenome-assembled genomes across five phyla, including several putative novel lineages and a distinct dominant Nostocaceae lineage. Genomes carried predicted functions for photosynthesis, stress response and nutrient transformations.

    WHY IT MATTERS / OUR READ

    Genome-resolved work can turn an apparently simple enrichment culture into a map of interacting functional potential. Extreme-environment consortia may be useful as ecological model systems without assuming that every predicted trait is expressed in the field.

    CAVEATS / UNCERTAINTY

    The consortium was enriched from surface water–sediment slurry collected at a single Talabre site in 2012, so cultivation altered the original community. Novelty is genomic/taxonomic inference, and many functional claims are predicted from sequence rather than demonstrated ecosystem performance in situ.

    SOURCE

    Frontiers in Bioengineering and Biotechnology
    View original evidence ↗

    Read the Wild Lands assessment

Landscape / City Watch

Cities are ecological systems.

Peer-reviewed North America

Urban connectivity may work differently once organisms are allowed to evolve

A 100-city landscape analysis paired with a plant–pollinator model suggests that heterogeneity and connectivity can delay extinction, while evolutionary feedbacks can erode some of that benefit.

Evidence
Peer-reviewed
Geography
100 metropolitan areas, United States
System
Urban landscapes and plant–pollinator metacommunities

WHAT THE EVIDENCE SAYS

Across 100 U.S. metropolitan regions, urban landscapes had lower heterogeneity and forest aggregation and higher aggregation of developed land than non-urban landscapes. A proof-of-concept spatial eco-evolutionary plant–pollinator model then showed that heterogeneity and connectivity can delay extinction, but trait evolution and mutualistic feedbacks change the size of those benefits.

WHY IT MATTERS / OUR READ

Green corridors and habitat networks are not static plumbing. If species interactions and traits change in fragmented urban landscapes, design performance may depend on how connectivity shapes both movement and adaptation over time.

CAVEATS / UNCERTAINTY

The empirical landscape analysis does not measure observed extinction outcomes, and the eco-evolutionary result comes from a proof-of-concept model rather than a post-occupancy design experiment. The 100-city U.S. sample may not generalize to other urban forms.

SOURCE

Landscape Ecology
View original evidence ↗

Read the Wild Lands assessment

September 27, 2026 · Issue 017

Today’s strongest thread is that ecological function keeps escaping the categories we use to summarize landscapes. Guinea baboon connectivity drops across intensive cropland while remaining more permeable through heterogeneous mosaics; an intact Australian wetland chamber finds nitrogen processing in crab burrows, roots and vegetation that conventional cores often exclude; Lower Amu Darya tugai forests are degrading most sharply where floodplain hydrology and salinity have shifted; and Pacific adaptation evidence shows that “traditional knowledge” is not a single input when knowledge, labor and authority are gendered. Across fire, freshwater, disease surveillance, cities and forestry, the useful unit is repeatedly the process underneath the headline metric.

Land Manager Watch

Evidence for decisions on land, water and habitat

Peer-reviewed · Zhejiang Province, China

Heavy thinning increased short-term growth while shrinking one dimension of functional diversity

Three years after treatment in a Zhejiang secondary forest, heavy thinning raised species diversity and biomass growth but reduced functional richness—so the management response depends on which objective is being measured.

Management read

For managers, ‘more diversity’ and ‘more growth’ are not single outcomes. Thinning intensity can move species diversity, trait-space occupancy, structure and productivity in different directions, so the prescription should follow the objective and be evaluated with more than basal-area growth alone.

Caveat / uncertainty: These are three-year responses in one regional forest type and may represent transient post-thinning dynamics rather than a stable endpoint. Higher short-term biomass growth does not establish long-term resilience or biodiversity benefit, and the loss of functional richness is a material tradeoff rather than noise.

Read the full evidence, caveats & Land Manager analysis →

Editorial thread to watch

Three patterns recur. First, measurement architecture matters: intact wetland chambers, hourly fire-weather indices, lifetime isotope records and dynamic disease-surveillance tables reveal processes that daily averages, destructive cores or one-time counts can miss. Second, persistence matters as much as initial response: residential water audits produced a strong short-run conservation effect that disappeared within months, while urban connectivity benefits can change when ecological and evolutionary feedbacks are allowed to operate. Third, management moves objectives in different directions. Heavy thinning increased short-term growth and several diversity metrics while reducing functional richness, and cypress humification tracked litter substrate and microclimate more strongly than a simple treatment label. Good ecological decisions need the mechanism, timescale and tradeoff—not only a category that sounds favorable.