Species and Ecosystems at Risk - Publicly Available Occurrences - CDC

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Published by the Ministry of Environment and Climate Change Strategy - Ecosystems
Licensed under Open Government Licence - British Columbia

The B.C. Conservation Data Centre’s spatial view of publicly available, known locations of species and ecological communities at risk. This spatial view is split into the "Publicly Available Occurrences" layer and "(Extirpated and Historical) Publicly Available Occurrences" layer. The Extirpated and Historical layer includes element occurrences that have a last observation date greater than 40 years ago and element occurrences that are extirpated due to general habitat loss or degradation of the environment in the area. Use the field ‘Rank Description’ to differentiate between Historical and Extirpated element occurrences in this layer.

All element occurrences are polygons: the size of the polygon usually reflects the locational uncertainty associated with the source data, represented with varying sized circles. Some polygons may be larger to reflect the actual area covered by the element occurrence. The field "Representational Accuracy" is used to communicate how accurately the polygon reflects the actual area covered by the element.

If you do not find an element occurrence in your area of interest, this means there are none currently mapped in the CDC database. The best way to verify whether an area contains a species or ecosystem at risk is to have do a detailed assessment of the property during the appropriate season.

Data and Resources

Dataset Extent

Latitude: 48.0° to 60.0°
Longitude: -139.5° to -113.5°

Additional Information


Prevent accidental destruction of a location of a species or ecological community at risk and for research and analysis.

Lineage Statement

The Conservation Data Centre follows NatureServe Element Occurrence Data Standards (2003). Records mapped prior to 2003 were mapped to an older standard.

Contact Information

NameCDC Data Requests (pointOfContact)
OrganizationMinistry of Environment and Climate Change Strategy
NameDebbie Webb (pointOfContact)
OrganizationMinistry of Environment and Climate Change Strategy

Access & Security

Who can view this dataset? Public
Who can download this dataset?Public

Metadata Information

Record Published 2011-03-09
Record Last Modified 2021-09-16
Resource Status onGoing

Object Description


Short Name: BIO_NS_SVW
Comments: This view exposes the BIOTIC occurrence area with the attributes for a non sensitive BIOTIC occurrence. An Occurrence is a specific geographic location that represents a habitat capable of sustaining or contributing to the survival of specified species. This view does not includes Endangered Species, nor Record Trees.

Column Name Short Name Data Type Data Precision Comments
OCCR_AREA_SP_ID OCCR_R__ID NUMBER 10 Primary unique numeric identifier for a Polygon.
FEATURE_CODE FEATURE_CD VARCHAR2 10 A standard numeric code to identify the type of feature represented by the spatial data. A feature code is most importantly a means of linking a feature to its name and definition. For example, the code GB15300120 on a digital geographic feature links it to the name "Lake - Dry" with the definition "A lake bed from which all water has drained or evaporated." The feature code does NOT mark when it was digitized, what dataset it belongs to, how accurate it is, what it should look like when plotted, or who is responsible for updating it. It only says what it represents in the real world. It also doesn't even matter how the lake is represented. If it is a very small lake, it may be stored as a point feature. If it is large enough to have a shape at the scale of data capture, it may be stored as an outline, or a closed polygon. The same feature code still links it to the same definition.
SHAPE_ID SHAPE_ID NUMBER 10 Shape ID is the unique identifier for each polygon. Used to label occurrences on map products.
OCCR_ID OCCR_ID NUMBER 38 Occurrence ID is the Element Occurrence Primary Key.
SCI_NAME_F SCI_NAME_F VARCHAR2 1500 Scientific Name Formatted is the RISC (Resource Information Standard Committee) standard Scientific name, including html tags for italics.
SCI_NAME SCI_NM VARCHAR2 750 Scientific Name in the scientifc name written in sentence case.
ENG_NAME_F ENG_NAME_F VARCHAR2 1200 English Name formatted is the RISC standard English common name, including html tags for italics.
ENG_NAME ENG_NM VARCHAR2 750 English Name is the Common English name written in title case.
EL_TYPE EL_TYPE VARCHAR2 210 Element Type identifies the element (species or natural plant community) as belonging to one of the following groups: Vertebrate Animal, Invertebrate Animal, Vascular Plant, Nonvascular Plant, Alga, Terrestrial Community - Other Classification, Other (Botanical).
EL_TYPE_CD EL_TYPE_CD VARCHAR2 18 Element Type Code is a code representing the type of element that this occurence relates to. Potential value include "ANIMAL","PLANT", or "NPC" (Ecological Comunity).
TAX_CLASS TAX_CLASS VARCHAR2 4000 Taxonomic Class is the taxonomic class, in English, to which the species belongs. For example, Monocots, Dicots, Mammals, Birds, Reptiles, Insects.
DATA_SENS DATA_SENS CHAR 3 Data Sensitivity is a single character indicating whether the record is sensitive, and the data protected.N - DATA NOT PROTECTED, MAY BE RELEASED TO PUBLICY - DATA PROTECTED, MUST NOT BE RELEASED TO PUBLIC
GLOB_RANK GLOB_RANK VARCHAR2 36 Global Rank is the global conservation status rank for the species or natural plant community, assigned by NatureServe International.
PROV_RANK PROV_RANK VARCHAR2 60 Provincial Rank is the sub-national (provincial), conservation status rank for the species or natural plant community, assigned by the CDC.
COSEWIC COSEWIC VARCHAR2 93 COSEWIC is the Committee on the Status of Endangered Wildlife in Canada designation for this element ( http://www.cosewic.gc.ca/)
BC_LIST BC_LIST VARCHAR2 150 BC List is the provincial "list" status for this species or natural plant community. Possible values are; RED, BLUE, YELLOW, INTRODUCED, ACCIDENTAL, EXTINCT and SPECIAL. SPECIAL records include record sized trees.
SARA_SCHED SARA_SCHED CHAR 3 SARA Schedule is the SARA (The Species at Risk Act) schedule number for this element.
SURV_SITE SURV_SITE VARCHAR2 1050 Survey Site is a short description of the location of the occurrence, e.g. "Duncan, 2 km east of". Most often the nearest Gazetted place name. There will sometimes be several occurrences at the location.
DIRECTIONS DIRECTIONS VARCHAR2 4000 Directions provides directions to the site of the occurrence. If the DATASENS field is marked with a 'Y', this information is not to be released to the public.
FIRST_OBS FIRST_OBS VARCHAR2 150 First Observation Date is the date that the occurrence was first reported at the site.
LAST_OBS LAST_OBS VARCHAR2 150 Last Observation Date is the date on which the species or community was last observed to be extant at the occurrence site. Format is yyyy-mm-dd OR yyyy-aaaa OR yyyy-mm1987-07-15 1965-SPRG 1981-07
OCCR_DATA OCCR_DATA VARCHAR2 4000 Occurrence Data provides details such as number of fledglings from nest site, number of plants in flower etc.
RANK RANK VARCHAR2 6 RANK (Occurrence Rank) is a single letter or 2 or 3-letter code combination signifying the overall quality of the individual occurrence, e.g., A (highest quality), D (lowest quality). Not all occurrences have a rank.
RANK_DESC RANK_DESC VARCHAR2 180 Rank Description indicates the relative value of the Occurrence with respect to other occurrences of the Element, based on an assessment of estimated viability (species) or ecological integrity (communities).
RANK_DATE RANK_DATE VARCHAR2 150 Rank Date is the date of the field survey on which the Element Occurrence (EO) rank is based.
RANK_COM RANK_COM VARCHAR2 4000 Occurrence Rank Comment is a short comment justifying the EORANK. Records which do not have an EORANK will not have this field, and some of the records which DO have an EORANK will not yet have had this field completed.
CONDITION CONDITION VARCHAR2 4000 Condition is an integrated measure of the quality of biotic and abiotic factors, structures, and processes within the Element Occurrence (EO), and the degree to which they affect the continued existence of the occurrence.
OCCR_SIZE OCCR_SIZE VARCHAR2 4000 Occurrence Size is a quantitative measure of the area and/or abundance of the Element Occurrence (EO).
LAND_CONT LAND_CONT VARCHAR2 3440 Landscape Context is an integrated measure of the quality of biotic and abiotic factors, structures, and processes surrounding the Element Occurrence (EO), and the degree to which they affect the continued existence of the occurrence.
GEN_DESC GEN_DESC VARCHAR2 4000 General Description is a description, or "word picture", of the area where the Element Occurrence is located. For plant and animal records, the natural plant community in which the occurrence is found may be given. Information on surrounding land use is included, if available.
VEG_ZONE VEG_ZONE VARCHAR2 600 Vegetation Zone is one of five possible zones; LOWLAND, STEPPE, MONTANE, ALPINE and SUBALPINE.
HABITAT HABITAT VARCHAR2 4000 Habitat is a series of words or phrases from a controlled vocabulary which describe the general habitat in which the element occurrence is found. Keyword groups are separated by semi colons:TERRESTRIAL;WOODLAND NEEDLELEAFTERRESTRIAL;WOODLAND BROADLEAF; SUBURBANMARINE;EXPOSEDRIVERINE
BGC BGC VARCHAR2 4000 BGC is semicolon seperated value list of Biogeoclimatic (BGC) Units that apply to this occurrence.
REFERENCES REFERENCES VARCHAR2 4000 References is a list of the Reference Citation relevant to this Occurrence. If multiple references exists, they are seperated by an HTML break <BR>.
VERS_DATE VERS_DATE DATE 7 Version Date is the date of the current version of this Element Occurrence (EO) record (i.e., the date that this record was first completed, or since then, comprehensively revised).
VERS_AUTHOR VRS_THR VARCHAR2 300 VERS AUTHOR is the name of the person principally responsible for preparing this version of the Element Occurrence (EO) record.
EST_RA EST_RA VARCHAR2 90 Estimated Representational Accuracy is the percentage of the polygon actually occupied by the occurrence.VH Very High Accuracy (>95%)H High Accuracy (80% - 95%)M Medium Accuracy (20% - 80%)L Low Accuracy (>0%-20%) U Unknown (?)
CON_EXTENT CON_EXTENT CHAR 3 Confidence Extent indicates whether the full extent of the Element is known (i.e., has been determined through field survey) at that location and, therefore, is represented by the Element Occurrence (EO).
CON_EXTENT_DESC CN_XTNT_DC VARCHAR2 180 CON EXTENT DESC is a description indicating whether the full extent of the Element is known (i.e., has been determined through field survey) at that location and, therefore, is represented by the Element Occurrence (EO).
ECOSECTIONS ECSCTNS VARCHAR2 4000 ECOSECTIONS is a list of the ecosections relevant to this Occurrence. If multiples exists, they are seperated by commas.
ENVIRONMENT_COM ENVRNMNT_M VARCHAR2 4000 ENVIRONMENT COM is comments on other important aspects of the environment that affect this particular community Element Occurrence (EO).
SOIL_COM SOIL_COM VARCHAR2 4000 SOIL COM is the description of any other important features of the soil influencing the community Element Occurrence (EO).
MIN_ELEV_METERS MN_LV_MTRS NUMBER 38 MIN ELEV METERS is the minimum elevation of the area covered by the Element Occurrence (EO), in metres.
MAX_ELEV_METERS MX_LV_MTRS NUMBER 38 MAX ELEV METERS is the maximum elevation of the area covered by the Element Occurrence (EO), in metres.
ADDITIONAL_INV_NEEDED_IND ADDTNL_NVD VARCHAR2 3 ADDITIONAL INV NEEDED IND indicates that additional survey work is needed for this Element Occurrence (EO).
ADDITIONAL_INV_NEEDED_COM ADDTNL_NVM VARCHAR2 3000 ADDITIONAL INV NEEDED COM is comments related to any additional survey work that is needed for this Element Occurrence (EO).
INVENTORY_COM INVNTRY_CM VARCHAR2 4000 INVENTORY COM is the description of the sampling scheme used for the Element Occurrence (EO).
REP_ACCURACY_COM RP_CCRCY_M VARCHAR2 3000 REP ACCURACY COM is comments relating to Representational Accuracy (the level of accuracy associated with the Element Occurrence Representation (EO Rep)).
SPECIMEN_DESC SPCMN_DSC VARCHAR2 4000 SPECIMEN DESC is citation(s) for old specimens or other vouchers for this Element Occurrence (EO). Contains semi-colon seperared list if multiple citations.
EO_NUM EO_NUM NUMBER 38 EO NUM is a number that identifies this particular occurrence of the Element.
ELCODE ELCODE CHAR 10 ELCODE is an alternate unique identifier for each Element in the CDC database. The first 10 characters identify the species/plant community. eg. PGPIN01010
ELEMENT_SUBNATIONAL_ID ELMNT_S_ID NUMBER 38 ELEMENT SUBNATIONAL ID is a unique identifier for all elements that occur subnationally (provinicially).
ECOSYSTEM_GRP ECSYSTM_GP VARCHAR2 4000 ECOSYSTEM GROUP is a classification of ecological communities into broad ecosystem types. eg. Terrestrial - Alpine: Alpine.
GEOMETRY GEOMETRY SDO_GEOMETRY 64 ArcSDE spatial column: coordinates defining the features.
OBJECTID OBJECTID NUMBER 38 OBJECTID is a required attribute of feature classes and object classes in a geodatabase.