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The interesting thing about data, unlike Web
pages, when you get data, it's actually much more interesting to you when
you join it with and compare to some other data from a completely different
source..
(Sir Tim Berners Lee on the power of mashing up data)
About Observation DatasetsPlease send all updates and corrections of observation data directly to the respective data owner with a carbon copy to CONTACT . Changes will be reflected in the Calflora Observation Database when the data contributor sends Calflora a updated copy of their data. | |||
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Botanical Literature Summary of Reported Ranges
This dataset began as Data transcribed from Munz' A California Flora and Supplement (1968) by Kwei-Lin Lum as part of her thesis work with Peter J.Richerson at U.C. Davis. (Lum 1975 , Richerson and Lum 1980 ). In compiling species summaries, Calflora translated the abbreviated names and coded data of the Lum/Walker/Munz68 database. Calflora then used data from the CNPS Inventory to update distribution and habitat data for 893 species in the Lum/Walker/Munz68 database and to add records for 849 taxa not already included in that database (that is, infraspecific and new taxa). The data was subsequently expanded to include all infraspecific taxa recognized as occurring in California and updated to reflect current nomenclatural usage. Adjustments to distributions for taxa affected by changes in taxonomic delineation (lumps and splits) were made using information from the Jepson Manual (Hickman 1993) to modify existing records. Literature-based distribution data for taxa not previously included in Calflora (mostly infraspecific taxa that are not rare) represent Calflora's interpretation of distribution descriptions in the Jepson Manual. ID: lit_summary Date first included: Last Update: 19 February 2001 Total Present Record Count: Updates? No. This dataset represents the distribution
knowledge of California plants known at a particular point in time.
It will serve as a historical reference in the future. Sampling methods: For literature-based distribution data, is important to note that the type and rate of errors in geographic distribution are very different for the three major literature sources. Lum was transcribing generalized and sometimes vague range descriptions into concrete presence/absence data for specific county and subcounty regions. For most species, data were not verified with any other source of information and, in addition to coding errors, represent only a best estimate of the range of the species in question. Lum(Lum 1975) showed that while her data are far from error-free, errors of assigning taxa to regions where they do not occur are about equal in number to errors of not assigning taxa to regions where they actually do occur. Consequently, her data produce unbiased and quite accurate estimates of species numbers but somewhat inaccurate species lists for given regions. Regions used to describe plant distributions in The Jepson Manual span multiple counties. Consequently interpretation of Jepson Manual descriptions in terms of presence and absence in particular counties and subcounties is indefinite. All distribution records based on Jepson Manual data are marked in the auth_collector field. For species level taxa, the composite literature-based distribution summaries presented in Calflora can be expected to have error characteristics much like those Lum described. It can be expected to perform well for analyzing broad patterns and general relationships, as demonstrated by both Lum and Walker. It clearly performs less well in generating accurate species lists for particular locations, but not so badly that it is not useful for producing preliminary checklists for a variety of applications. For infraspecific taxa, the composite literature-based distribution summaries combine data that tend to underestimate range (CNPS) with data that overestimate range (Jepson Manual). Error characteristics of the combined data are unknown.
The region code was decompiled to individual species-county occurrences for inclusion here. See more detailed notes on this process in 'field-by-field notes'. Nomenclature:: Identification Notes: not applicable Contact: Calflora staff can assist with the interpretations
of the data modification through time, but the composite dataset
reflects a synthesis of information from the sources listed in the
'auth_collector' field. Please consult these references for full
descriptive documentation.
general questions: CONTACT 1700 Shattuck Av #198, Berkeley, CA 94709 Phone: 510 528-5426 Bureau of Land Management Eagle Lake Field Office Herbarium
ID: eaglelakeherb
Click here for detailed field-by-field notes.
All records are based on herbarium specimens. Most were identified by Gary Schoolcraft (high reliability); and quite a few have also been annotated by researchers from other herbaria.
Location data generally given to the township, range, and section, plus a general description of location, county, state, and elevation.
Most records have exact day of collection.
Most names reflect nomenclature of the collection time (i.e. Munz, Intermountain Flora, or Jepson Manual). Names have generally not translated from the original observer's usage.
Collections were done in the course of a general inventory of BLM lands, and as the opportunity arose. Generally, no attempt was made to collect multiple specimens of a species across the district, but to represent the majority of the species found in the area. We have classed these as incidental observations.
Beth Corbin, Botanist, Eagle Lake Field Office Bureau of Land Management 2950 Riverside Drive Susanville, CA 96130 (530) 252-5305. California Department of Food & Agriculture Herbarium
California Department of Fish and Game: Natural Diversity Database
The CNDDB has many more observation records for rare species than appear on Calflora. The records that appear on Calflora are a subset of the complete CNDDB collection, and each record contains only several fields from the corresponding complete CNDDB record. This subset is intended to indicate the distribution of rare plant species only at the quad or county level. Researchers interested in this data are urged to obtain the data from CNDDB directly rather than to rely on this subset.
February 2006 (24,907 records)
From February, 2006, until May, 2008, the CNDDB made observer, last observation date, and elevation available to Calflora for each taxon/quad record. (In the case of multiple points within a quad, the observer provided was the primary one used by CNDDB for mapping purposes.) As of May, 2008, CNDDB is no longer providing observer, observation date, or elevation to Calflora.
Please contact CA-DFG CNDDB directly
for more detailed data on particular records.
Department of Fish and Game Biogeographic Data Branch 1807-13th Street, Suite 202 Sacramento, CA 95811 (916) 324-3812 bdb@dfg.ca.gov California Department of Fish and Game Vegetation Classification and Mapping Program
Department of Fish and Game Biogeographic Data Branch 1807-13th Street, Suite 202 Sacramento, CA 95811 (916) 324-3812
California Native Plant Society
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| What Grows Here? | (example) | ||
| Map Viewer | (example) | ||
| Observation Entry |
When a user searches for occurrence data from the Search for Plant Occurrence Records page, (for instance, native ferns in Nevada County), the first line of results looks like this:
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Find records from the
Consortium of California Herbaria (CCH) website
that meet these criteria
When a user clicks the link, the software looks in the Calflora copy of the CCH records to see if there are any matches. If there are, the user is redirected to a Consortium results page showing the matching records.
Further, on a Calflora Taxon Report page (such as this
page for
Centaurea maculosa),
there is a total record count for each county,
in which the number of records from the CCH is broken out.
On a Calflora Distribution Analysis page
(again for
Centaurea maculosa),
the cells in the right hand map are based
in part on CCH records, and users can click through to
see those records on the CCH website.
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Date first included: March 20, 2010
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Updates?
- quarterly
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Contact
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Consortium of California Herbaria
Richard L. Moe, Manager of Collections Data
USDA Forest Service: Ecology Program
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Data Synopsis:
- additions expected, existing records may be updated with more precise location data and additional site characteristics
- Bruce B. Bingham
- USDA Forest Service
- Pacific Northwest Region
- Arcata, CA
- bbingham@fs.fed.us
- voice: 503-808-2251
- USDA Forest Service
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Date included:1997
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Total Record Count: 115,003
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Updates?
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Conversion Notes
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Dataset came without unique record identifiers, Calflora assigned
new ones.
Taxonomic Names came encoded in ADP codes. Conversion to expanded names uses the Calflora table [ADP-USFS].
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Location data did not come with county name information. An attempt
was made to assign county name by translating Meridian/Township/Range/Section
into a lat/long centroid of the section. Then lat/long was
converted to county location by Fran Evanisko at BLM, but the
results have been problematic. County data warrants further processing
and refinement.
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Identification was performed in most cases by USFS botanists and
field biologists. Specific collector information was not
available.
Sampling methods
Contact
USDA Forest Service, Pacific North-West: Forest Inventory Assessment
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Data Synopsis:
- Timothy Swedburg and Charles Bolsinger
- USDA Pacific Northwest Research Station
- P.O. Box 3890
- Portland OR 97208
- (503) 808-2044
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Inventory data collected by the National Forest Service of vegetation
on National Forest Lands. The chief objective of forest inventory
is to provide data useful for planning, and allocating land resources
and management activities. Most observations are of economically
important species (i.e. timber trees) and co-associates.
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Date included: 1976
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Total Record Count: 29,433
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Contact
USDA NRCS-National Plants Data Center:
California County Occurrence Information from Botanical Literature
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Data Synopsis:
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Records represent vouchered observations published in botanical
literature and scientific journals. Most observations are by specialists
of the reported taxa, gathered during monographic, taxonomic or
floristic research.
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Date included: 25 August 1998
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Total Record Count: 79,912
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Updates?
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Infrequent updates expected
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• 2001-03-21- Observation type changed to "secondary
source" for all records, reflecting new observation type category
created for the lit_summary dataset.
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Identification Notes
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Nomenclature
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Sampling methods
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A list of journals
cited is available.
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Contact:
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Queries regarding the database should be directed to
Dieter Wilken,
Director of Research,
Santa Barbara Botanic Garden
USGS Central Mojave Vegetation Mapping Project
Data Synopsis:
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This dataset contains field data gathered
in connection with vegetation classification and mapping of the
central portion of the Mojave Desert. Data were collected during
1997, 1998, and 1999 to characterize vegetation composition and
environment on 1242 plots. Data were gathered using plot-based
releve methods, and included a vascular plant species list with
cover value by species, landform and soil information, general
vegetation physiognomy, and human impacts. Fieldwork was carried
out under the direction of Kathryn Thomas, USGS Biological Resources
Division. Data presented here are part of a larger body of information
available in electronic form from the USGS (see contact information
below). More information on this project is available at http://www.mojavedata.gov.
ID: mojave
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Date included: 18 July 2002
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Total Record Count: 21,461
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Updates?
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None expected.
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Transcription Notes
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Both scientific names and plant codes were provided. In cases
where there was disagreement between the name and the code as
defined in USDA PLANTS (about 20 cases), the name was given
precedence.
Click here for detailed field-by-field notes.
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Identification Notes
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Although specimens may have been collected, individual field
observations are not documented by specific specimens. Consequently,
these observations are classified as ‘reported’.
All observations are attributed here to Kathryn A. Thomas, who
supervised the project and reviewed work of field personnel.
Names of field crew members connected with individual observations
may be available from the data contributor upon request (see
contact information).
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Nomenclature
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Names used are generally consistent with Jepson Manual usage
(Hickman 1993). Names in this dataset are, with few exceptions,
the original names used by the field observers.
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Date Notes
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Exact date of survey was recorded for each plot.
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Location Notes
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Data were provided as UTM coordinates in NAD 83 datum. Field
crews used aerial photos, maps and military-grade GPS to find
preselected plot locations. Precision of locations provided
is estimated at 0.25 hectares (location of plant observed is
not more than about 25m from the point described by the UTM
coordinates). ‘County’ was not provided by the data
contributor, values here are interpreted from the UTM coordinates.
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Sampling methods
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These data are classified as 'plot list'. Data were collected
as comprehensive species lists of 1) perennial native plants,
and 2) annual and perennial exotic plants, for circular plots
of 1000 sq. meters. An environmental sampling framework was
developed using satellite imagery and other information to produce
an initial vegetation stratification. Then, for each class in
that stratification, a suitable number of sampling locations
1 square km in size were randomly selected. Within each 1 km
location, up to eight sample plots were selected to represent
the different topographic subclasses present. A report describing
these methods will be available on the Mojave Vegetation Project
website, http://www.mojavedata.gov.
Data presented here are from the first of three stages of sampling
used to develop the Central Mojave Vegetation Map.
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Contact
USGS Forest and Rangeland Ecosystem Science Center
Colorado Plateau Field Station
Northern Arizona University
P.O. Box 5614, Bldg. 24
Flagstaff AZ 86011-5614
Kathryn_A_Thomas@usgs.gov
UC Riverside Herbarium
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ID: UCR
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Date included: March, 2005
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Date removed: March 20, 2010
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Total Record Count: 75,227
East Bay CNPS Rare and Unusual Plants Database
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Data Synopsis:
- *A1x- Species in Alameda and Contra Costa counties listed as rare, threatened or endangered statewide by federal or state agencies or by the state level of CNPS.
- *A1- Species in Alameda and Contra Costa counties listed as rare, threatened or endangered statewide by federal or state agencies or by the state level of CNPS.
- *A2- Species in Alameda and Contra Costa counties listed as rare, threatened or endangered statewide by federal or state agencies or by the state level of CNPS.
- A1x- Species previously known from Alameda or Contra Costa Counties, but now believed to have been extirpated, and no longer occurring here.
- A1- Species currently known from 2 or less regions in Alameda and Contra Costa Counties.
- A2- Species currently known from 3 to 5 regions in the two counties, or, if more, meeting other important criteria such as small populations, stressed or declining populations, small geographical range, limited or threatened habitat, etc.
- A?- Species that have been reported in the two-county area but identification is questionable and the species may not actually occur here.
- B- Watch List of plants that occur in 6 to 9 regions in the two counties. Not currently considered rare or endangered in the East Bay but that could become so if certain conditions persist such as over-development, water diversions, excessive grazing, weed or insect invasions.
- C- Watch List of plants that occur in 10 or more regions in the two counties. Not currently considered rare or endangered in the East Bay but have potential threats.
- Unranked- Plants previously tracked, but now found to occur in 15 or more regions in the two counties and not considered to have significant potential threats.
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Volunteers with the East Bay chapter of the California Native Plant Society
(EB-CNPS) have rigorously gathered plant observations for many years in
Alameda and Contra Costa Counties.
They have compiled observations from many sources as well as direct
in-the-field surveys, and used this information to evaluate which species
are rare or threatened locally, but possibly more common elsewhere.
Over the years, criteria have been developed and a ranking system devised to denote the degree of rarity and endangerment of these unusual plants in Alameda and Contra Costa Counties. A database is used to track these plants and surveying, monitoring, and other research activities continue every year to constantly reassess and update the status of these plants in the two-county area. EB-CNPS Ranking can be found in Calflora under the "comments" section, and the field "extra" of each observation.
Please see a complete description of this project on the EB-CNPS website.
Included in the latest update (July 2010) are several thousand observations of plants that have been determined to be more common than warranted for ranking (found in 15 or more subregions). These observations are included here as generally useful observations, but are marked as unranked in the context of the EB-CNPS Rare & Unusual Plant Database.
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Date included: November 2005
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Last Update: July 2010
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Total Record Count: 19,038
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Updates?
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Updates are provided as available, usually after a publication
of a new editions of the printed Rare, Unusual and Significant Plants \
of Alameda and Contra Costa Counties report.
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Ranked Lists
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Contact
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Dianne Lake
Unusual Plants Coordinator, East Bay CNPS
Yosemite National Park Natural Resource Inventory
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Data Synopsis:
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This dataset contains vegetation and habitat information for 362
sample plots established for vegetation inventory and mapping in
Yosemite National Park. Some of the survey plots were also used
for gathering information on fuel accumulation. Data were collected
by teams of field personnel working under the direction of Peggy
Moore, USGS Biological Resources Division, over the period 1988
to 1993. These data form part of an integrated in-house GIS library
for Yosemite. They are not available online or in published form.
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Date included: 26 February 2002
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Total Record Count: 6,507
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Updates?
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No updates expected, this project is complete.
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Transcription Notes
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Data were provided in 3 primary tables which were combined to
create the records presented here. These included a listing of
species occurrences by plot, location and environmental information
about plots, and vegetation type occurrences by plot. Additional
tables provided translations for vegetation types and other codes.
Original data not transcribed here include percent cover and cover
class values for species, and several environmental parameters
for plots. Locations were rounded to 1000 m before submission
to Calflora.
Click here for detailed field-by-field notes.
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Identification Notes
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Species determinations were made in the field by trained technicians
working under the direction of a botanist expert in the flora of
the region. Individual observations were generally not vouchered
and are classified here as 'reports'.
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Nomenclature
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Plant names were submitted to keep Calflora on line nomenclature consistent
with the Jepson Manual (1993), transcribed from field data in Munz-era
nomenclature.
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Date Notes
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Dates were recorded as exact day of observation in years from 1988
to 1993.
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Location Notes
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Plot locations were originally recorded as UTM coordinates with
a precision of 10 to 100 meters. These values were rounded to 1000
meters before submission to Calflora. More precise locations for
particular plots may be available on request.
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Sampling methods
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Occurrence observations are from 0.1 ha plots within a study area
that included all of Yosemite National Park. Plot locations were
selected on a stratified random bases, with strata representing
approximately 70 LANDSAT Thematic Mapper (TM) categories and 1,000
foot elevation zone. Four sites were selected within each elevation
zone/TM category combination. Plots were circular with a radius
of 17.84m. Observers recorded all vascular plant species present
within the plots. They also collected data on vegetation structure,
species composition, and a number of other plot attributes. Vegetation
types present within 100m of the plot were also recorded.
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Contact
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Peggy Moore
U.S. Geological Survey, Yosemite Field Station
P. O. Box 700
El Portal CA 95318
Cosumnes River Preserve
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Data Synopsis:
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The Cosumnes River Project is a broad-based effort to restore and
safeguard the integrity of the Cosumnes River and its surrounding landscape.
The preserve was established in 1987 with 1,480 acres.
By 2000, the preserve had grown to encompass more than 40,000 acres.
While the preserve was initially created primarily to protect
and restore a viable valley oak woodland ecosystem,
the scope of the project expanded considerably and
includes all associated Central Valley habitats
and their dependent wildlife.
Public education and recreation opportunities
are strategically aimed at increasing public awareness
and support for the project.
Data collected through regular botanical monitoring surveys, mostly by professional botanists.
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Date included: February 2008
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Total Record Count: 651
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Sampling Methods:
various; largely random permanent plots in riparian forest and vernal pool grassland sites.
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Contact
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Cosumnes River Preserve
13501 Franklin Blvd
Galt, CA 95632
(916) 684-2816
info@cosumnes.org
McLaughlin Reserve
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Data Synopsis:
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These data are from a plant list for the University of California, Davis' Donald and Sylvia McLaughlin Reserve and immediately adjacent public lands. A concerted effort to compile a complete species list for this locality has been undertaken over the past 25 years by rare-plant experts (consulting for Homestake Mining Company, the former managers of the property), ecologists conducting research on the property, and Reserve staff. While some reported occurrences remain unvouchered, the plant list for the most part is well documented and populations of sensitive species are well mapped both in space and time.
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Date included: March 2007
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Total Record Count: 699
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Updates? periodic revisions are expected.
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Notes on Location and Date:
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Please contact Reserve staff to gain access to the Reserve before you attempt to either verify a record or conduct any additional exploration. Botanical explorations are encouraged but need to be arranged with site staff in order to ensure security of research and teaching occurring on the site.
Records in this dataset are not distinguished as to location; all records are georeferenced to a single point inside the Reserve. Records in this dataset are not distinguished as to observation date; the date shown on the records, July, 2005, represents when the list of species was compiled, not when the plants were observed.
Vouchered specimens are kept at the UC Davis Herbarium or at the McLaughlin Reserve. For the actual location of any species mentioned in the dataset, or the actual date when specimens were taken, please contact the Reserve. Information about some of the vouchered specimens kept at the UC Davis Herbarium is available from the California Consortium of Herbaria website .
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Contact
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Paul Aigner or Catherine Koehler
Resident Co-Directors
UC Davis - McLaughlin Reserve
26775 Morgan Valley Rd.
Lower Lake, CA 95457
(707) 995 9005
mclaughlin@ucdavis.edu
Invasive Spartina Project - DRAFT DATA
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Overview:
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The Invasive Spartina Project is a coordinated regional effort among local, state and federal organizations dedicated to preserving California's extraordinary coastal biological resources through the elimination of introduced species of Spartina (cordgrass).
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The ISP surveys the Bay annually to assess and map the distribution of introduced Spartina species. The mapping project is a field-based effort, utilizing Global Positioning System (GPS) units to collect location and ecological data for each found population of invasive Spartina. Highly infested marshes are mapped by digitizing ground-truthed color IR aerial photos.
Calflora acknowledges the Invasive Spartina Project, the State Coastal Conservancy, the Calfed Bay-Delta Program, and the State Wildlife Conservation Board for use of this data
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Date included: February 20, 2009,
from draft data provided by ISP on December 11, 2008.
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Total Record Count: 205 (North Richmond only)
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Updates?
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ISP has data covering
the entire Bay. Data currently available on Calflora
is a subset which includes only data from the North Richmond area.
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Location Notes
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Location data were provided to Calflora in the form of points
in an ESRI shapefile.
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Contact
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San Francisco Estuary Invasive Spartina Project
2612-A 8th Street
Berkeley, CA 94710
The Bay Area Early Detection Network (BAEDN)
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Overview:
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The Bay Area Early Detection Network is a collaborative partnership of regional land managers and invasive species experts. The BAEDN coordinates Early Detection and Rapid Response to infestations of invasive plants, proactively dealing with new outbreaks before they can grow into large and costly environmental threats.
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BAEDN data is contributed by various
individuals and institutions, and concerns weeds
which are spreading to new locations in the Bay Area.
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Date included: September 30, 2008
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Updates?
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New BAEDN data is being actively contributed.
Revisions to existing records are expected occasionally.
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Contact
Calflora - 1700 Shattuck Av #198, Berkeley, CA 94709 - 510 528-5426