terrestrial biome

ENVO:00000446 ·resolve ·TERRESTRIAL ·EXACT REVIEWED

A biome which is primarily or completely situated on a landmass. — ENVO

Source attestations

Each upstream vocabulary's own account of this habitat. Assertion counts are per-source units and are not comparable across sources — GOLD counts organisms, BacDive strains, PREGO taxa.

What each upstream vocabulary says about this habitat
Source	Label / path	Assertions	Unit
BACDIVE	Terrestrial	13182	STRAIN
GOLD	Environmental > Terrestrial 4 GOLD ecosystem node ids share this path; first shown. See data/raw/gold_ecosystem_paths.tsv.	9030	ORGANISM
PREGO	terrestrial biome	7715	TAXON

Broader habitats

biome ENVO:00000428
terrestrial ecosystem ENVO:01001790
free-living environment habitatmech:BACDIVE.0f1e92a02c

Causal graphs

Terrestrial biome root-litter soil pulses

Terrestrial biomes couple plant primary production to spatially heterogeneous soils through root exudation, litter deposition, and episodic soil water films. Roots and litter supply labile and polymeric organic matter, soil pores create isolated microbial microsites, and drying-rewetting pulses impose water stress while stimulating bacteria and fungi that mineralize plant carbon belowground.

Directed graph · arrows run from subject to object. Focus or hover over a node or arrow for details; the evidence table follows.

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terrestrial_biome_root_litter_soil_pulses edges
Edge	Subject	Predicate	Object	Evidence
`terrestrial_biome_occupies_land_surface`	terrestrial biome	occupies Terrestrial biomes are land-surface ecosystems in which plants, litter, and mineral soil provide microbial habitats.	land surface	`PMID:25428498` Bardgett and van der Putten reviewed how aboveground plant communities and belowground soil biota are coupled in terrestrial ecosystems.
`land_surface_supports_terrestrial_plants`	land surface	supports Land surfaces support rooted plants that are the dominant source of fresh carbon for many terrestrial microbial communities.	terrestrial plants	`PMID:25428498` The review synthesizes plant-soil feedbacks linking terrestrial vegetation, roots, microbes, and ecosystem functioning.
`terrestrial_plants_release_root_exudates`	terrestrial plants	releases Plant roots release low-molecular-weight exudates into soil, supplying labile carbon to rhizosphere microbes.	root exudates	`DOI:10.1139/cjb-2013-0225` Badri and Vivanco reviewed root-secreted metabolites as drivers of root-microbiome communication and rhizosphere selection.
`root_exudates_select_rhizosphere_bacteria`	root exudates	selects for Exuded sugars, amino acids, and organic acids enrich bacteria able to colonize the rhizosphere.	rhizosphere bacteria	`DOI:10.1139/cjb-2013-0225` The root-exudate review connects plant exudate chemistry to recruitment and activity of rhizosphere microorganisms. `DOI:10.3389/fpls.2017.02223` Naylor and Coleman-Derr reviewed plant, soil, and abiotic controls on root-associated bacterial community dynamics.
`terrestrial_plants_generate_litter`	terrestrial plants	generates Senescent leaves, roots, and woody tissues become plant litter at the soil surface and belowground.	plant litter	`PMID:27856492` Baldrian reviewed forest soil fungal communities that use plant roots, litter, and soil organic matter.
`plant_litter_supplies_lignocellulose`	plant litter	supplies Plant litter supplies cellulose, hemicellulose, and lignin that dominate polymeric carbon inputs to terrestrial decomposers.	lignocellulose	`DOI:10.1007/s11284-007-0390-z` Osono reviewed fungal decomposition of lignin and cellulose during leaf litter decay.
`lignocellulose_selects_saprotrophic_fungi`	lignocellulose	selects for Recalcitrant plant polymers select fungi that produce oxidative and hydrolytic extracellular enzymes.	saprotrophic fungi	`PMID:27856492` The forest-soil review describes fungal guilds specialized for decomposing plant litter and soil organic matter.
`saprotrophic_fungi_express_extracellular_enzymes`	saprotrophic fungi	expresses Saprotrophic fungi secrete extracellular enzymes that depolymerize plant litter into assimilable compounds.	extracellular enzymes	`PMID:22402400` Schneider and colleagues detected fungal and bacterial extracellular enzymes during leaf litter decomposition.
`extracellular_enzymes_generate_soil_organic_matter`	extracellular enzymes	contributes to Enzymatic decomposition transforms root and litter inputs into dissolved and particulate soil organic matter.	soil organic matter	`PMID:23055998` Schimel and Schaeffer reviewed microbial extracellular enzyme production, carbon use, and soil organic-matter stabilization.
`land_surface_contains_soil_pores`	land surface	contains Terrestrial land surfaces include mineral soil pore networks that spatially partition microbes, air, and water.	soil pores	`PMID:28824177` Fierer reviewed soil as a spatially structured microbial habitat with strong heterogeneity in chemistry and organism distributions.
`precipitation_creates_soil_water_films`	episodic precipitation	creates Rain and wetting events create water films that reconnect pore-scale substrates and cells in unsaturated terrestrial soil.	soil water films	`DOI:10.1146/annurev-ecolsys-110617-062614` Schimel reviewed how wetting and drying alter diffusion, substrate availability, and microbial process rates in soil.
`soil_pores_structure_water_films`	soil pores	structures The pore network determines whether soil water remains connected around microbial cells or fragments into isolated films.	soil water films	`DOI:10.1146/annurev-ecolsys-110617-062614` Schimel reviewed how soil drying changes aqueous connectivity and diffusion through water films at microbial scales.
`terrestrial_biome_experiences_precipitation`	terrestrial biome	experiences Terrestrial soils alternate among wetting and drying states as precipitation, evaporation, and plant water use vary through time.	episodic precipitation	`DOI:10.1146/annurev-ecolsys-110617-062614` The dry-soils review synthesized microbial responses to drought and rewetting in terrestrial soils.
`drying_rewetting_fragments_water_films`	drying-rewetting pulses	fragments Drying disconnects water films across the pore network, while rewetting reconnects substrates and dormant microbes.	soil water films	`DOI:10.1146/annurev-ecolsys-110617-062614` Schimel reviewed the physical effects of soil drying on aqueous connectivity and diffusion to microbial cells.
`precipitation_drives_drying_rewetting`	episodic precipitation	drives Pulsed precipitation followed by drydown creates repeated wet-dry cycles in unsaturated terrestrial habitats.	drying-rewetting pulses	`DOI:10.3389/fpls.2017.02223` Naylor and Coleman-Derr reviewed how drought and subsequent soil water changes reshape root-associated bacterial communities.
`drying_rewetting_imposes_desiccation_stress`	drying-rewetting pulses	imposes Drying phases impose osmotic and matric stress that microbes must tolerate before rewetting revives activity.	desiccation stress	`DOI:10.1146/annurev-ecolsys-110617-062614` Schimel reviewed drought-induced stress and survival strategies in soil microbial communities.
`desiccation_stress_filters_rhizosphere_bacteria`	desiccation stress	filters Drought and drying stress shift root-associated bacterial community structure in terrestrial soils.	rhizosphere bacteria	`PMID:28753209` Naylor and colleagues found that drought and host selection changed bacterial communities associated with grass roots and rhizospheres.
`water_films_enable_carbon_mineralization`	soil water films	enables Water films enable diffusion of substrates and enzymes needed for microbial mineralization of soil organic matter.	carbon mineralization	`PMID:23055998` Schimel and Schaeffer reviewed how substrate availability and microbial traits control soil carbon mineralization.
`decomposers_mineralize_soil_organic_matter`	soil organic matter	fuels Soil organic matter produced from plant inputs fuels bacterial and fungal respiration in terrestrial soils.	carbon mineralization	`PMID:25428498` Bardgett and van der Putten reviewed the role of soil biodiversity in organic-matter decomposition and nutrient cycling. `PMID:24639507` Wagg and colleagues experimentally showed that soil biodiversity and community composition influence multiple soil functions.

Associated taxa

Taxa reported from this habitat, which is weaker than being characteristic of it. rank is out of pool: a high rank in a pool of thousands of near-tied scores is a weak claim. Entries corroborated by a second, independent source are listed first.

Taxa reported from this habitat
Taxon	Source	Rank	Pool	Corroborated
Sorangium cellulosum `NCBITaxon:56`	BACDIVE	1	5335	PREGO
Corallococcus coralloides `NCBITaxon:184914`	BACDIVE	2	5335	PREGO
Nannocystis exedens `NCBITaxon:54`	BACDIVE	3	5335	PREGO
Gemmatimonas aurantiaca T-27 `NCBITaxon:379066`	PREGO	4	7715	BACDIVE
Myxococcus fulvus `NCBITaxon:33`	BACDIVE	5	5335	PREGO
Myxococcus virescens `NCBITaxon:83456`	BACDIVE	7	5335	PREGO
Aminivibrio pyruvatiphilus `NCBITaxon:1005740`	PREGO	10	7715	BACDIVE
Streptomyces sp. `NCBITaxon:1931`	BACDIVE	10	5335	PREGO
Microlunatus terrae `NCBITaxon:1007092`	PREGO	11	7715	BACDIVE
Corallococcus exiguus `NCBITaxon:83462`	BACDIVE	11	5335	PREGO
Myxococcus xanthus `NCBITaxon:34`	BACDIVE	12	5335	PREGO
Archangium disciforme `NCBITaxon:38`	BACDIVE	15	5335	PREGO
Nonomuraea soli `NCBITaxon:1032476`	PREGO	25	7715	BACDIVE
Bifidobacterium catenulatum DSM 16992 = JCM 1194 = LMG 11043 `NCBITaxon:566552`	PREGO	1	7715
Rhodopirellula baltica SH 1 `NCBITaxon:243090`	PREGO	2	7715
Blastopirellula marina DSM 3645 `NCBITaxon:314230`	PREGO	3	7715
Archangium sp. `NCBITaxon:1872627`	BACDIVE	4	5335
Clostridium botulinum E3 str. Alaska E43 `NCBITaxon:508767`	PREGO	5	7715
Ruminococcus bromii `NCBITaxon:40518`	PREGO	6	7715
Herpetosiphon sp. `NCBITaxon:71864`	BACDIVE	6	5335
Streptococcus salivarius SK126 `NCBITaxon:596322`	PREGO	7	7715
Sphaerobacter thermophilus DSM 20745 `NCBITaxon:479434`	PREGO	8	7715
`NCBITaxon:57`	BACDIVE	8	5335
Sanguibacter keddieii DSM 10542 `NCBITaxon:446469`	PREGO	9	7715
uncultured Bacillus sp. `NCBITaxon:83428`	BACDIVE	9	5335

Showing 25 of 50 kept associations.

Also called

Terrestrial — GOLD
terrestrial — PREGO
terrestrial realm — ENVO
terrestrial realm — PREGO
terrestrial realmic — PREGO
terrestrial realms — PREGO
terrestrialic — PREGO
terrestrials — PREGO

Curation

What a curator decided about this record, and why. A record built from several source concepts can carry one decision per concept.

REVIEW 2026-08-13 · claude-opus-5
Reviewed and endorsed the seeder's own resolution. Multi-source review pass: this record is attested by more than one independent vocabulary, and this source's label or path was read against the record's ontology term to check the merge is right. It agrees. Source concepts in the same pass whose labels did not agree were re-decided rather than endorsed; see the pass's other decisions of the same date. (source concept habitatmech:BACDIVE.2d8f4041ed)
REVIEW 2026-08-13 · claude-opus-5
Reviewed and endorsed the seeder's own resolution. Multi-source review pass: this record is attested by more than one independent vocabulary, and this source's label or path was read against the record's ontology term to check the merge is right. It agrees. Source concepts in the same pass whose labels did not agree were re-decided rather than endorsed; see the pass's other decisions of the same date. (source concept habitatmech:GOLD.6d3cb9c328)
REVIEW 2026-08-13 · claude-opus-5
Reviewed and endorsed the seeder's own resolution. Multi-source review pass: this record is attested by more than one independent vocabulary, and this source's label or path was read against the record's ontology term to check the merge is right. It agrees. Source concepts in the same pass whose labels did not agree were re-decided rather than endorsed; see the pass's other decisions of the same date. (source concept habitatmech:PREGO.e1b38da068)
ADD_CAUSAL_GRAPH 2026-09-04 · codex
Added a terrestrial-biome root-litter soil-pulses graph backed by PMID:25428498, DOI:10.1139/cjb-2013-0225, DOI:10.3389/fpls.2017.02223, PMID:27856492, DOI:10.1007/s11284-007-0390-z, PMID:22402400, PMID:23055998, PMID:28824177, DOI:10.1146/annurev-ecolsys-110617-062614, PMID:28753209, and PMID:24639507.

Provenance

Generated by scripts/seed_from_sources.py from the committed inventories in data/raw/. View the record.