Glossary - T
     
 
   
 

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T

Taxonomic Comments: Pertinent information regarding questions or controversies concerning the validity, taxonomic distinctness, or generic placement of the plant or animal species. May also provide information about the scientific name or its spelling. May include discussion of differing taxonomic or nomenclatural usage by other conservation agencies and organizations. Note: Plants discussion may be incomplete. For more information please see Classification Sources.

Taxonomic Serial Number (TSN): The unique identifier for a taxonomic unit assigned by the Integrated Taxonomic Information System (ITIS)

Taxonomic Status: The status of the taxon in relation to NatureServe's currently accepted classification. Values include: Accepted (the taxon is formally recognized, described, and accepted by NatureServe's standard classification ), Provisionally accepted (the taxon has not yet been formally addressed and accommodated in NatureServe's standard classification or has not yet been formally described in the scientific literature), and Not accepted (the taxon is addressed by NatureServe's standard classification but is not accepted). The standard classification is separately established for different groups of organisms for different geographic areas. For more information please see Classification Sources.

Technical Description: A technical scientific description of the species similar to those found in technical botanical works.

Temporary Pool: Small depressions in which surface water is present for extended periods (especially early in the growing season) but is absent by the end of the season in most years; "seasonally flooded" (Cowardin).

Terrestrial Habitat(s): Terrestrial habitat(s) where the species is found: Values include: forest-hardwood, forest-conifer, forest-mixed, woodland-hardwood, woodland-conifer, woodland-mixed, shrubland/chaparral, savanna, grassland/herbaceous, old field, desert, alpine, tundra, ice, playa/salt flat, sand/dune, bare rock/talus/scree, cliff, cropland/hedgerow, suburban/orchard, urban/edificarian, aerial.

The Nature Conservancy's Conservation Ecoregion Code: Codes of The Nature Conservancy's Conservation Ecoregion.

The Nature Conservancy's Conservation Ecoregion Name: Name of The Nature Conservancy's Conservation Ecogregion

The Nature Conservancy's Conservation Ecoregions Occurrence Status: The degree of certainty that the Association or Ecological System occurs in a particular Conservation Ecoregion of The Nature Conservancy. Values include: C = Confident or Certain, P = Predicted or Probable, ? = Possible, X = Presumed Extirpated, [] = Data Entry Incomplete.

Threat Assessment: An assessment of specific threats using the IUCN-CMP Classification of Threats. The scope, severity, and timing of each individual threat is recorded and the results are used to calculate the Overall Threat Impact. For more information see NatureServe Conservation Status.

Threat Impact (Overall): Coded value indicating the degree to which the integrity of an ecosystem or viability of a species is affected by extrinsic factors (stressors) that degrade integrity or viability, and which are characterized in terms of scope and severity. Threats are typically anthropogenic, having either direct (e.g., habitat destruction) or indirect (e.g., introduction of invasive species) impact. For more information see NatureServe Conservation Status.

Threat Impact Comments: Description of known global threats to the species.

Tidal Flat/ Shore: Non-vegetated zone of wave or tidal action, intermittently exposed or inundated.

TN: Abbreviation for the state of Tennessee (United States).

Translated Alliance Name: The translated name for the Alliance based on the common names of the nominal plant species. Note: Translated names may not be available for all Alliances. A standard list of common names has been developed by NatureServe Ecology for use in translated names. For more information see Classification of Ecological Communities.

Translated Name: The translated name for the Association based on the common names of the nominal plant species. A standard list of common names has been developed by NatureServe Ecology for use in translated names. For more information see Classification of Ecological Communities.

TSN: See Taxonomic Serial Number.

Tundra: Herbaceous and dwarf shrubby vegetation beyond the subpolar tree line.

TX: Abbreviation for the state of Texas (United States).
 

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