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Rare Features Database Reports: An Explanation of Fields The Rare Features Database is part of the Natural Heritage Information System,and is maintained by the Division of Ecological and Water Resources,Minnesota Department of Natural Resources(DNR). **Please note that the database reports are copyrighted and may not be reproduced without permission** Field Name: [Full(non-abbreviated)field name, if different]. Further explanation of field. -E- Element Name and Occ#: [Element Name and Occurrence Number]. The Element is the name of the rare feature. For plant and animal species records,this field holds the scientific name followed by the common name in parentheses;for all other elements(such as native plant communities,which have no scientific name)it is solely the element name.Native plant community names correspond to Minnesota's Native Plant Community Classification(Version 2.0).The Occurrence Number,in combination with the Element Name,uniquely identifies each record. EO Data: [Element Occurrence Data]. For species elements,this field contains data collected on the biology of the Element Occurrence* (EO),including the number of individuals,vigor,habitat,soils,associated species,peculiar characteristics,etc.For native plant community elements, this field is a summary text description of the vegetation of the EO, including structure (strata) and composition (dominant/characteristic species), heterogeneity, successional stage/dynamics, any unique aspects of the community or additional noteworthy species (including animals).Note that this is a new field and it has not been filled out for many of the records that were collected prior to conversion to the new database system.Some of the information meeting the field definition may be found in the General Description field. EO ID#: [Element Occurrence Identification Number]. Unique identifier for each Element Occurrence record. EO Rank: [Element Occurrence Rank]. An evaluation of the quality and condition of an Element Occurrence(EO)from A(highest)to D (lowest).Represents a comparative evaluation of: 1)quality as determined by representativeness of the occurrence especially as compared to EO specifications and including maturity,size,numbers,etc.2)condition(how much has the site and the EO itself been damaged or altered from its optimal condition and character).3)viability(the long-term prospects for continued existence of this occurrence-used in ranking species only).EO Ranks are assigned based on recent fieldwork by knowledgeable individuals. Extent Known?: A value that indicates whether the full extent of the Element is known(i.e.,it has been determined through field survey)at that location. If null,the value has not been determined. -F- Federal Status: Status of species under the U.S.Endangered Species Act:LE=endangered;LT=threatened;LE,LT=listed endangered in part of its range,listed threatened in another part of its range;LT,PDL=listed threatened,proposed for delisting;C=candidate for listing. If null or"No Status"the species has no federal status. First Observed Date: Date that the Element Occurrence was first reported at the site in format YYYY-MM-DD.A year followed by"Pre" indicates that the observed date was sometime prior to the date listed,but the exact date is unknown. -G- General Description: General description or word picture of the area where the Element Occurrence(EO) is located(i.e.,the physical setting/context surrounding the EO),including a list of adjacent communities.When available,information on surrounding land use may be included.Note that the information tracked in this field is now more narrowly defined than it was in the old database system,and some of the information still in this field more accurately meets the definition of the new EO Data field. We are working to clean up the records so that the information in the two fields corresponds to the current field explanations described herein.Also note that the use of uppercase in sentences in this field is not significant but rather an artifact of transferring data from the old database system to the new system. Global Rank: The global(i.e.,range-wide)assessment of the relative rarity or imperilment of the species or community.Ranges from G1 (critically imperiled due to extreme rarity on a world-wide basis)to G5(demonstrably secure,though perhaps rare in parts of its range). Global ranks are determined by NatureServe,an international network of natural heritage programs and conservation data centers. -L- Last Observed Date: Date that the Element Occurrence was last observed to be extant at the site in format YYYY-MM-DD. Last Survey Date: Date of the most recent field survey for the Element Occurrence,regardless of whether it was found during the visit.If the field is blank,assume the date is the same as the Last Observed Date.