establishment_light_environment_index

Explore the data for this trait in the portal

• Label: Canopy light environment required for seedling establishment
• Entity URI: https://w3id.org/APD/traits/trait_0030219
• Type: numeric
• Definition: A plant phenological [TO:0000933] life history [ECOCORE:00000018] trait which is an index [NCIT:C25390] that captures the level of photosynthetically active radiation [ENVO:01001864] required by plants for seed germination [GO:0009845] and seedling establishment [EnvThes:20410].;The minimum light environment required by seedlings for establishment, scaled from 0 to 8.
• Additional comments: 0 indicates `No direct light, extremely low levels of transmitted/reflected light, such as beneath dense fern or palm fronds close to ground level.`; 0.5 indicates `No direct light, very low levels of transmitted light`; 1 indicates `Rare or no exposure to direct light from lateral sources, and low levels of transmitted light.`; 2 indicates `Low lateral light and low-moderate transmitted light with <10% of inverted cone exposed to lateral sources of direct light, plus low to moderate levels of transmitted light`; 3 indicates `Low-moderate lateral & moderate transmitted light, with <5% exposure of the focal crown to vertical direct light, and <15 % of inverted cone exposed to lateral sources of direct light, plus moderate transmitted light.`; 4 indicates `Moderate lateral light & moderate-high transmitted light, with 5 - 10% exposure of focal crown to direct vertical light, plus 2-20% exposure of inverted cone to lateral sources of direct light, plus moderate to high levels of transmitted light.`; 5 indicates `Moderate vertical light and moderate-high lateral light, with 5 - 20% exposure of focal crown to direct vertical light, plus one or both of, i. 10-40% exposure of 90-degree inverted cone to lateral sources of direct light, ii. exposure to high levels of transmitted light`; 6 indicates `Moderate-High vertical and high lateral light, with 10-30% of vertical projection of the crown exposed to vertical light, and lateral light exposure for > 40% of 90-degree inverted cone`, 7 indicates `High vertical and lateral light, with 30-80% of vertical projection of the crown exposed to vertical light, or exposure to lateral sources of direct light for > 60 % of a 90-degree inverted cone encompassing the focal crown.`; 8 indicates `Full light exposure of crown, with > 80% of the vertical projection of the crown exposed to vertical light.`.
• units: {dimensionless}
• allowable range: 0 - 8 {dimensionless}

See the AusTraits Plant Dictionary (https://w3id.org/APD/traits/trait_0030219) for additional information about this trait.

Coverage

For this trait, AusTraits includes a total of 199 records. This includes:

• data for 199 species.
• data for 61 families.
• data from 1 datasets (see the portal Citations tab for a list of sources)